Relevant bibliographies by topics / Hybridní materiál

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Hybridní materiál'

Author: Grafiati
Published: 4 June 2021
Last updated: 5 February 2022

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Journal articles on the topic "Hybridní materiál"

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Gaballah, Mahmoud M., Azza M. Metwally, Milan Skalicky, Mohamed M. Hassan, Marian Brestic, Ayman EL Sabagh, and Aysam M. Fayed. "Genetic Diversity of Selected Rice Genotypes under Water Stress Conditions." Plants 10, no. 1 (December 24, 2020): 27. http://dx.doi.org/10.3390/plants10010027.

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Drought is the most challenging abiotic stress for rice production in the world. Thus, developing new rice genotype tolerance to water scarcity is one of the best strategies to achieve and maximize high yield potential with water savings. The study aims to characterize 16 rice genotypes for grain and agronomic parameters under normal and drought stress conditions, and genetic differentiation, by determining specific DNA markers related to drought tolerance using Simple Sequence Repeats (SSR) markers and grouping cultivars, establishing their genetic relationship for different traits. The experiment was conducted under irrigated (normal) and water stress conditions. Mean squares due to genotype × environment interactions were highly significant for major traits. For the number of panicles/plants, the genotypes Giza179, IET1444, Hybrid1, and Hybrid2 showed the maximum mean values. The required sterility percentage values were produced by genotypes IET1444, Giza178, Hybrid2, and Giza179, while, Sakha101, Giza179, Hybrid1, and Hybrid2 achieved the highest values of grain yield/plant. The genotypes Giza178, Giza179, Hybrid1, and Hybrid2, produced maximum values for water use efficiency. The effective number of alleles per locus ranged from 1.20 alleles to 3.0 alleles with an average of 1.28 alleles, and the He values for all SSR markers used varied from 0.94 to 1.00 with an average of 0.98. The polymorphic information content (PIC) values for the SSR were varied from 0.83 to 0.99, with an average of 0.95 along with a highly significant correlation between PIC values and the number of amplified alleles detected per locus. The highest similarity coefficient between Giza181 and Giza182 (Indica type) was observed and are susceptible to drought stress. High similarity percentage between the genotypes (japonica type; Sakha104 with Sakha102 and Sakha106 (0.45), Sakha101 with Sakha102 and Sakha106 (0.40), Sakha105 with Hybrid1 (0.40), Hybrid1 with Giza178 (0.40) and GZ1368-S-5-4 with Giza181 (0.40)) was also observed, which are also susceptible to drought stress. All genotypes are grouped into two major clusters in the dendrogram at 66% similarity based on Jaccard’s similarity index. The first cluster (A) was divided into two minor groups A1 and A2, in which A1 had two groups A1-1 and A1-2, containing drought-tolerant genotypes like IET1444, GZ1386-S-5-4 and Hybrid1. On the other hand, the A1-2 cluster divided into A1-2-1 containing Hybrid2 genotype and A1-2-2 containing Giza179 and Giza178 at coefficient 0.91, showing moderate tolerance to drought stress. The genotypes GZ1368-S-5-4, IET1444, Giza 178, and Giza179, could be included as appropriate materials for developing a drought-tolerant variety breeding program. Genetic diversity to grow new rice cultivars that combine drought tolerance with high grain yields is essential to maintaining food security.
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Kobliha, J., and V. Janeček. "Development of hybrid fir clonal material." Journal of Forest Science 51, Special Issue (May 17, 2019): 3–12. http://dx.doi.org/10.17221/11842-jfs.

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There are four testing plots with hybrid clonal material. This material is regularly measured and some characteristics are observed. This paper sumarizes results of measurements from years 1998, 2000 and 2002. Hybrid material is compared with control material Abies alba from open pollination. Results show, that hybrid clonal material grow orthotropically and most of them are better in growth characteristics in comparison with control material Abies alba from open pollination. Mortality is also very low. All this mean high potential of this material to the future not only for further breeding, but also for use in special plantations.
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Marquart, Reiner, and Alexander Pifczyk. "Hybrides Projektmanagement." VDI-Z 161, no. 12 (2019): 70–71. http://dx.doi.org/10.37544/0042-1766-2019-12-70.

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Klassisches oder agiles Projektmanagement? Diese Frage hat sich in vielen Unternehmen zur Glaubensfrage entwickelt. Dabei haben beide Ansätze Stärken und Schwächen. Deshalb ist es in der Praxis oft sinnvoll, das Beste beziehungsweise Zielführendste aus den beiden Projektmanagement-Welten zu vereinen.
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VanVolkenburg, Heather, Frédérique C. Guinel, and Liette Vasseur. "Impacts of Smooth Pigweed (Amaranthus hybridus) on Cover Crops in Southern Ontario." Agronomy 10, no. 4 (April 8, 2020): 529. http://dx.doi.org/10.3390/agronomy10040529.

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Amaranthus hybridus is a noxious weed in Ontario, with demonstrated allelopathic properties that can lead to decreased agricultural production. We tested the germination and growth of five cover crop species exposed to A. hybridus extracts, and to dried or fresh materials in soil. A germination index was calculated, and the dry weight of plant organs were measured to quantify responses to treatments. All species had reduced germination (≤29%) in 100% extract. Trifolium pratense had significant root weight reductions in extract (52%) and dried (72%) treatments, whereas shoot weight only decreased (48%) in dried treatment. Medicago sativa shoot weight decreased (52%) in 20g fresh treatment, while root weight decreased (62%) in dried treatment. Shoot weight of Raphanus sativus increased (32%) at mid-extract concentrations, while root weight increased (33%) only with dried treatment; however, both its shoot and root weight decreased (>40%) in fresh treatment. Only the shoot weight of Lolium multiflorum increased (41% in 75% extract and 55% in dried treatment). Both Cichorium intybus shoot and root weights decreased (~50%) in fresh treatment. Crop responses to A. hybridus are complex, and material and species-dependant. Further testing in the field may provide a more comprehensive understanding of how to improve the management of A. hybridus.
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Montaser, Mahgoub Osman, Jia Liang Zhou, Mohamed Nourrein, Chong Li, Heng Xue Xiang, Bin Sun, and Mei Fang Zhu. "Preparation PET Hybrided Materials by In Situ Polymerization for Delustered Fibers." Materials Science Forum 898 (June 2017): 2166–73. http://dx.doi.org/10.4028/www.scientific.net/msf.898.2166.

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A series of polyethylene terephthalate (PET) hybrid materials with high-load TiO2 content were prepared via in situ polymerization by dispersing unmodified titanium dioxide (TiO2) in Ethylene Glycol (EG), and the influence of load TiO2 nanofillers on the physical properties of PET masterbatch was investigated. The intrinsic viscosities of the prepared PET hybrid materials were affected by the addition of the nanoparticles and in both cases a slight decrease was observed. In addition, the thermal behavior of these PET hybrid materials and neat PET was investigated using Differential Scanning Calorimetry (DSC). The chemical structures of PET hybrid materials were characterized by Fourier Transform Infrared (FTIR) and Scanning Electron Microscopy (SEM). The TiO2 nanoparticles show well dispersibility in PET matrix. The PET hybrid material with 40wt.% TiO2 content was used as master batch to prepare full dull PET fiber with 2.5 wt.% TiO2. The melt flow ability of PET hybrid materials shows good winding and drawing performance, and also the resulted fiber has better mechanical properties than neat PET fiber. It suggests that this PET/TiO2 masterbatch by in situ polymerization may find good application for delustered fiber preparation.
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Friedrich, Horst E., and Gundolf Kopp. "New Materials and Construction Methods for Multi-Material-Design, Lightweight Construction and Modularity in Future Vehicle Concepts." Materials Science Forum 539-543 (March 2007): 51–57. http://dx.doi.org/10.4028/www.scientific.net/msf.539-543.51.

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Besides reducing fuel consumption, the chief motivating factor behind the development of new vehicle structures is the desire to decrease climate-affecting emissions. One approach to addressing this involves reducing the vehicle mass and, as such, the various strategies relating to lightweight construction. Various methods of lightweight construction are used as a basis for deriving the technically relevant criteria for designs and material concepts. The work conducted in this field today centres around the synthesis of construction method and material development with the objective of devising a multi-material-design [1, 2]. Modularisation is an economic approach aimed at shaping the diversification of the vehicle concepts and implementing this effectively [3]. As a result of hybrid and later fuel cell drives, the requirements on the vehicle concepts will continue to grow in future. Modularisation also sometimes opposes the striving for a high level of integration. The modular lightweight concept of the DLR aims at designing powertrain evolutions in a scalable and cost-efficient manner and in a way that retains the concept flexibility or, in some cases, even increases this. These approaches lead to the strategy known as “hybrid3”. This strategy not only involves matching different materials and various construction methods with each other, but also taking account of the integration of functional effects. This entails, for example, optimising the design of thin-walled structural components in terms of their vibratory or acoustic properties with structure- integrated, active materials. Further examples of the approach with “hybrid3” effects could be selectable surfaces or integrated energy conversion. The various development directions are depicted in the form of a roadmap and discussed on the basis of forward-looking examples from the field of vehicle construction.
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Ma, Chong Jian, Hui Ming, and Hua Shou Li. "Study of Red Mud Improvement with the Mixing Method and the Impact of Pennisetum hybridum Plantation on Red Mud Amendment." Advanced Materials Research 807-809 (September 2013): 392–401. http://dx.doi.org/10.4028/www.scientific.net/amr.807-809.392.

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currently, the comprehensive utilization of red mud has been a worldwide challenge. Due to high alkaline level and a serious lack of nutrients, a great amount of red mud has been stocked in the open rather than covered by plantations, which showed harms to the atmosphere, water and soil environment. In order to explore a more effective phytoremediation approach of red mud and screen plants with strong tolerance, the research group applied Pennisetum hybridum as the experiment material for a long term, which is a new energy plant in the field of ecological environmental management and restoring. Through the addition of different types of addictives, his experiment conducted the plantation Pennisetum hybridum based on red mud improvement matrix. Besides, a systematic research of the improvement effects of different ameliorants on red mud was conducted. Concurrently, the growth of Pennisetum hybridum in different groups of the experiment was investigated. Their mutual effect on the improvement effect of red mud was analyzed systematically. Results demonstrated that effective raw materials of red mud improvement include phosphogypsum, wastes of polluted and edible mushrooms. These can significantly reduce the pH and conductivity of red mud. After the improvement, Pennisetum hybridum can grow vigorously in the mixture matrix of red mud, and significantly improve the red mud matrix. Concurrently, considerable biomasses were obtained. The experiment results demonstrated that the addition of necessary nutriments for the plant growth was very important for red mud. The research has laid a solid foundation for the identification of the great potentials of Pennisetum hybridum in red mud phytoremediation, the further exploration of its role of restoring of red mud and the extensive application and promotion in the future.
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Akimune, Yoshio, Hiroshi Tsuda, and Junji Takatsubo. "Hybrid Sensing Technology and Diagnostic Technology(International Workshop on Smart Materials and Structural Systems, W03 Jointly organized by Material & Processing Division, Material & Mechanics Division, Dynamics & Control Division and Space Engineering Division.)." Reference Collection of Annual Meeting 2004.8 (2004): 307–8. http://dx.doi.org/10.1299/jsmemecjsm.2004.8.0_307.

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Klimova, Elena, Ivan Fesenko, Elena Kuznetsova, Ján Brindza, Gyunesh Nasrullaeva, Olga Rezunova, and Elena Kuznetsova. "Assessment of a new artificial buckwheat species Fagopyrum hybridum as a source of plant raw materials compared to F. Tataricum and F. Esculentum." Potravinarstvo Slovak Journal of Food Sciences 14 (August 28, 2020): 625–32. http://dx.doi.org/10.5219/1393.

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A promising way to increase the use of buckwheat is the wider introduction of technologies for its processing, including grinding of non-hulled grain. It requires the search for new plant materials with more suitable characteristics. In this work, the possibilities to use the grain of a new artificial buckwheat species Fagopyrum hybridum for flour production are studied in comparison with two cultivated species F. tataricum and F. esculentum. Some chemical characteristics of F. hybridum flour were evaluated. According to the size of the kernel fragments in different modes of milling within each species the significant differences were identified within F. esculentum and F. hybridum (p <0.001 and p <0.05, respectively); there were no significant differences within F. tataricum (p >0.1). Fragments of the seed hulls of F. tataricum and F. hybridum compared to ones of F. esculentum were distinguished by the absence of pronounced acute angles. For the cultivated species, amino acid compositions of grain protein of the studied samples manifest no strong deviations from earlier published results. The new species F. hybridum has the amino acid composition similar to ones of the both cultivated species with slight superiority in the content of all essential amino acids. So, the content of Cysteine, Tryptophan, Arginine, Lysine, Methionine, Leucine + Isoleucine, Threonine, Histidine and Valine in seeds of F. hybridum was 5.2, 15.0, 25.8, 30.2, 31.2, 36.0, 38.4, 41.1 and 46.2% higher compared to F. tataricum and 11.1, 43.7, 39.2, 3.7, 31.2, 15.2, 14.8, 20.0, 18.9% higher compared to F. esculentum. Using DPPH it was assessed the antioxidant activity (AOA) of whole grain flour of three buckwheat species and decreasing of the AOA during heating up to 100 °C. After water extraction the AOA was maximal for F. tataricum flour; F. hybridum and F. esculentum manifested similar values with the same decline dynamics during heating. After ethanol extraction the flour of F. hybridum shown higher AOA compared to both cultivated species before temperature treatment (1.3 times) as well as after heating to 100 °C (1.2 times). The results of the analysis of the fractional composition of flour from the whole grain of the three buckwheats shown the fragments of the seed hulls of F. tataricum and F. hybridum compared to ones of F. esculentum were characterized by the absence of pronounced acute angles. Additional experiments are needed to optimize the technology of whole-grain buckwheat flour. But the grain of F. tataricum and F. hybridum looks like more suitable for these purposes than the non-hulled grain of F. esculentum.
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Ke, Gang. "Preparation and Characterization of Carbon Nanotubes/Hydroxyethyl Cellulose Hybrid Material." International Journal of Chemical Engineering and Applications 8, no. 2 (April 2017): 131–35. http://dx.doi.org/10.18178/ijcea.2017.8.2.644.

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Dissertations / Theses on the topic "Hybridní materiál"

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Neboha, Oksana. "Příprava struktur duplexního typu cestou mechanického legování a SPS." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2020. http://www.nusl.cz/ntk/nusl-416614.

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This master´s thesis focuses on duplex microstructures preparation by powder metallurgy. A hybrid material can be created by combining two or more existing materials in different geometries, and thus the newly formed composite can provide a superposition of the properties of the starting materials (powders). This means that it will have an improved combination of the required properties. The theoretical part describes in detail the hybrid materials and the architectured materials that contain highly controlled structures. Structure control allows to change the variety of possible geometries and opens up a number of other useful properties. Therefore, this thesis also deals with the mechanical alloying and SPS. The experimental part describes procedures of preparation of four samples of composites with a duplex structure from a powder of a significantly tough alloy (austenitic steel 316L) in combination with a powder of a significantly strong alloy (titanium carbonitride). A crucial part of this thesis is characterization of these four samples by electron microscopy methods (SEM, TEM, EDS) and supported by hardness measuring.
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Jetela, Václav. "Hybridní lepené spoje kovových a kompozitních materiálů." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2016. http://www.nusl.cz/ntk/nusl-241199.

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The first part of the diploma thesis with name „Hybrid adhesive bonded joints of metals and composite materials“ comprise surface pretreatment review. There is also mentioned current review of adhesives for composite and aluminium adherends. The second part of the thesis is dedicated to lap hybrid joint shear strength tests. The effects of adherend thickness, overlap lenght and surface pretreatment on shear strength were investigated. Measured parameters of hybrid joints are proved with a FE analysis with enough accuracy. Conclusions could be used for optimum design of hybrid joint with aluminium and composite adherends.
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Mechref, Elias. "Synthèse, caractérisation et mise en œuvre d’un matériau hybride organique-inorganique photosensible de type résine positive : application à la fabrication de dispositifs de microfuidique par écriture Laser." Thesis, Montpellier, 2015. http://www.theses.fr/2015MONTS071.

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Depuis quelques décennies, les matériaux composites organique/inorganique font l’objet de nombreux travaux de recherches. En raison de leurs propriétés uniques et intermédiaires entre les deux mondes minérales et organiques, ces matériaux sont d’un grand intérêt pour des nombreuses applications tel que le domaine, d’optique, la microfluidique, la microélectronique…, La synthèse de ce type des matériaux est réalisée à moindre coût en deux étapes : La synthèse du réseau inorganique est effectué par procédé sol-gel , tant qu’à la partie organique des compositions de type résines négatives et positives possède la particularité d’être photo-réticulables sous irradiation (UV et visible). Parallèlement, est apparue la lithographie par écriture laser (spot de quelques microns). Elle s’avère très pertinente pour la mise au point d’un procédé pour lequel des objets de petites dimensions (quelques Microns) et de petites surfaces sont à réaliser car elle permet de s’affranchir de la fabrication de masques. Cette technique associée aux résines négatives, n’est pas idéale pour la fabrication d’objets de grandes surfaces en raison de temps de fabrication induits trop long. Il est, par exemple, extrêmement compliqué et couteux d’utiliser l’écriture Laser pour la réalisation de dispositifs microfluidiques. En effet, la création de canaux de taille micronique nécessite une très grande surface à insoler. Il est donc bien plus pertinent de travailler sur l’association de l’écriture laser avec une résine de type positive. L’objectif principal de ce travail est la synthèse, l’optimisation et mise en œuvre d’un matériau hybride photosensible de type résine positive : Application à la fabrication des capteurs microfluidiques. Notre choix s’est porté sur le poly(amic acid) PAA de masse molaire 2340 g/mol comme partie organique, connu pour ces bonnes propriétés mécaniques et sa grande stabilité thermique. Le travail est centré d’une part, sur la synthèse d’une résine positive photosensible à la longueur d’onde utilisée (365 nm) à base du polymère PAA. En général, les PAA sont très solubles dans une solution alcaline aqueuse, dû à la présence d’acide carboxylique. Afin d’améliorer le contraste entre la partie insolée et non insolée après le développement, un inhibiteur de dissolution 1,3,5-tris[(2-vinyloxy)ethoxy]benzène (TVEB) est greffé au PAA via la fonction vinyl éther. Ce dernier permet la réduction de la teneur en acide carboxylique dans le motif répétitif du polymère et comme conséquence diminuer la dissolution de la partie non insolée. D’autre part, la synthèse du matériau hybride à base de la résine photosensible optimisée, est réalisée par greffage d’un précurseur ORMOSIL le 4-vinyléther-phenyltriéthoxysilane (VEPTES) pré-hydrolysé par procédé sol-gel comme partie inorganique à notre polymère. Afin d'optimiser le matériau, une étude structurale a été réalisée depuis la synthèse du solution jusqu'à l'obtention des dépôts et enfin la création des canaux microfluidiques. Une amélioration significative au niveau des propriétés mécaniques et thermiques est notée au niveau du polymère par ajout d’une partie minérale
In recent decades, the organic / inorganic composite materials are the subject of many research works. Because of their unique properties and intermediate between inorganic and organic worlds, these materials are of great interest for many applications such as the area, optical, microfluidics, microelectronics ... The synthesis of this type of materials is carried out at a lower cost in two stages: The synthesis of inorganic network is made by sol-gel process, as well as the organic part of the negative and positive resin type compositions has the particularity of being photo-crosslinked under irradiation ( UV and visible).Meanwhile, the lithography by laser writing has appeared (spot a few microns). It is particularly appropriate for the development of a method for which small objects (a few microns) and small surfaces are to achieve because it eliminates the production of masks. This technique associated with negative resins, is not ideal for manufacturing large objects surfaces due to induced production time too long. It is, for example, be extremely complicated and expensive to use writing laser for producing microfluidic devices. Indeed, the creation of micron-sized channels requires a very large surface area to be exposed. It is therefore more appropriate to work on the combination of laser writing with a resin positive type. The main objective of this work is the synthesis, optimization and implementation of a photosensitive hybrid material resin positive type: Application to the fabrication of microfluidic sensors. Our choice fell on the poly(amic acid) PAA with molar mass of 2340 g/mol as an organic part, known for its good mechanical properties and high thermal stability.The work focuses on a part, on the synthesis of a positive photosensitive resin at the wavelength used (365 nm) based on the PAA polymer. In general, PAA are very soluble in an aqueous alkaline solution, due to the presence of carboxylic acid. In order to improve the contrast between the irradiated and unirradiated part after the development, an dissolution inhibitor 1,3,5-tris [(2-vinyloxy) ethoxy] benzene (TVEB) is grafted to the PAA via the vinyl ether function. This allows the reduction of the carboxylic acid content in the repeating unit of the polymer and as a consequence reduces the dissolution of the non-exposed part.On the other part, the synthesis of the hybrid material based on the optimized photosensitive resin is formed by grafting a precursor ORMOSIL 4-vinylether-phenyltriethoxysilane (VEPTES) pre-hydrolyzed by sol-gel method as the inorganic part to our polymer. In order to optimize the material, a structural study was conducted for the synthesis of the solution until the deposits and the creation of microfluidic channels. A significant improvement in mechanical and thermal properties is recorded at the polymer by adding an inorganic portion
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Schlierf, Andrea. "Graphene organic hybrid materials." Thesis, Strasbourg, 2014. http://www.theses.fr/2014STRAF050/document.

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En 2004, le carbone, la base de toute vie connue sur Terre, a marqué les esprits une fois de plus: Les scientifiques de l’Université de Manchester au Royaume Uni ont pu extraire une matière carbonée complètement nouvelle, le graphène à partir d’un morceau de graphite comme celui qui compose les crayons. À l’aide d’un ruban adhésif, ils ont obtenu une paillette de carbone de l’épaisseur d’un atome seulement, à une époque où beaucoup pensaient qu’un matériaux cristallin aussi fin ne pouvait pas être stable. Le graphène parfait est une couche monoatomique composée d’atomes de carbone hybridés sp2, arrangés en structure alvéolaire; sa structure chimique particulière lui donne des propriétés physiques et chimique remarquable. Le graphène est devenu rapidement la matière carbonée la plus intensivement étudiée parmi celles «possiblement révolutionnaires», avec ses applications potentielles s’étendant de la microélectronique aux composites, des énergies renouvelables à la médecine. En 2010, Geim et Novoselov ont été récompensés par le prix Nobel de physique pour leurs «expériences révolutionnaires sur les matériaux bi-dimensionnels en graphène» qui a ouvert une nouvelle ère dans la science des matières carbonées.La chimie non-covalente du graphène est exploitée et étudiée dans cette thèse dans le but de concevoir, produire, transformer et caractériser les nouveaux matériaux hybrides graphène-organique. L’étendue de ce travail couvre les aspects mécanistiques de l’exfoliation en phase liquide du graphène avec des colorants, les aspects fondamentaux des interactions entre le graphène et le chromophore, en phase liquide et solide, ainsi que l’élaboration de suspensions hybrides de graphène dans le but d‘applications en électronique organique et dans les matériaux composites polymères fonctionnels
In 2004, carbon, the basis of all known life on earth, has surprised once again: Researchers from University of Manchester, UK, extracted a completely new carbon material, graphene, from a piece of graphite such as is found in pencils. Using adhesive tape, they obtained a flake of carbon with a thickness of just one single atom, at a time when many believed it impossible for such thin crystalline materials to be stable. Pristine graphene is a mono-atomic sheet of, sp2 hybridized carbon atoms arranged in a honeycomb network; this particular chemical structure gives rise to its outstanding physical and chemical properties. Graphene rapidly became the most intensively studied among the ‘possibly revolutionary’carbon materials, with its potential applications reaching from microelectronics to composites, from renewable energy to medicine. In 2010, Geim and Novoselov were honored with the Nobel Prize in Physics for their “ground breaking experiments regarding the two-dimensional material graphene” that started a new era in the science of carbon materials.In this thesis we exploit and study the non-covalent chemistry of graphene to design, produce, process and characterize novel graphene organic hybrid materials. The scope of this work covers mechanistic aspects of graphene liquid phase exfoliation with dyes, fundamental aspects of graphene chromophore interactions in liquid and solid phase and the formulation of graphene hybrid suspensions towards application in organic electronics and functional polymer composite materials
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Kročová, Blanka. "Částicové kompozity vyztužené krátkými vlákny." Master's thesis, Vysoké učení technické v Brně. Fakulta chemická, 2012. http://www.nusl.cz/ntk/nusl-216855.

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This diploma thesis examines the effect of short fiber reinforcement in particle composite with a polymer matrix and the effect of its structure on the mechanical properties. It studies the refraction toughness depending on the addition of short polyvinylalcohol fibers (PVAL), nanosilica and pulverized polymethylacrylate (PMMA) to a dimethylacrylate matrix. Matrix strengthening was characterised with the help of differential compensation photocalorimetry. The inner structure of the composite and the morphology of fracture were studied using a scanning electron microscope. For the tested samples, the modules of elasticity and toughness were measured, the critical values of stress intensity factor and the energy release rate were determined. The findings suggest that the limit value of short fibers content is 4 vol. %. This content of fibers significantly increases the tenacity of the material but at the same time the uniform distribution of fibers and the ease of preparation of the material decrease. Within the possible applications, the manipulation of this material worsens as well. The fibers content of 2 ± 0.5 vol. % is an acceptable compromise between good treatability, uniform distribution of fibers and the required mechanical properties. During the study of the fracture surfaces of the material, different types of fibers disruption were witnessed (extraction from the matrix, plastic deformation, fibrillation on the surface of the fibers, fracture) depending on the type of used matrix and filling.
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Wehbi, Mohammad. "Fluoropolymers functionalized by phosphorous and silicon groups : syntheses, characterization and applications." Thesis, Montpellier, 2018. http://www.theses.fr/2018MONTS134/document.

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Les polymères fluorés sont des macromolécules intéressantes qui, en raison de leurs propriétés uniques, sont souvent utilisées dans des applications spéciales dans les industries du bâtiment, de l'aérospatiale, du génie chimique, du traitement des textiles, optiques et de la microélectronique. Cette thèse se concentre sur le développement de polymères fluorés fonctionnels à base de phosphore et de silane par la co/terpolymérisation radicalaire conventionnelle de monomères fonctionnels avec le fluorure de vinylidène (VDF). Ces monomères fonctionnels ont été préparés à partir de la modification de l'acide 2- (trifluorométhyl) acrylique (MAF) pour préparer des MAF-ester avec le groupement fonctionnel souhaité. Tout d'abord, une étude fondamentale concernant la cinétique de polymérisation du VDF avec MAF-TBE a montré que ces paires de monomères ont une tendance à se propager de manière croisée, ce qui donne des copolymères alternés. On a ensuite préparé du MAF avec une fonction phosphonate (MAF-DMP) et sa copolymérisation avec du VDF a permis d'obtenir du PVDF à fonctionnalité phosphonate qui, après l'hydrolyse consécutive du groupe phosphonate en acide phosphonique, avait des propriétés anticorrosion sur l'acier. De façon similaire, un monomère de MAF porteur une fonction carbonate cyclique (MAF-cyCB) a également été copolymérisé avec du VDF. Les groupes carbonate cycliques dans le copolymère de PVDF obtenu ont ensuite été ouverts par 1'aminopropyltriéthoxysilane pour introduire un groupe silane, qui, par son hydrolyse, a permis au copolymère d'adhérer fortement sur les substrats. Enfin, un terpolymère à base de PVDF fonctionnel porteur à la fois un groupe phosphonate et un groupe triéthoxysilane a été préparé. Le groupe silane a ensuite été hydrolyse et réticulé pour obtenir un réseau 3D de polymères. Enfin, l'hydrolyse du groupe phosphonate en acide phosphonique a conduit à une matière pouvant être utilisée dans l'extraction des ions Eu (III) de l'eau
Fluorinated polymers are intresting macromolecules which due to their unique properties are often used in special applications in building industries, aerospace, chemical engineering, optics, textile treatment and microelectronics. This thesis focusses on the development of phosphorous and silane functional fluorinated polymers through the conventional radical co/terpolymerization of functional monomers with vinylidene difluoride (VDF). These functional monomers were prepared from the modification of 2-(Trifluoromethyl)acrylic acid (MAF) to prepare MAF-esters with the desired functional group. First a fundamental study regarding the kinetics of polymerization of VDF with MAF-TBE revealed that these monomer pair tends to cross propagate resulting in an alternating copolymer. Phosphonate functional MAF (MAF-DMP) was then prepared and its copolymerization with VDF led to phophonate functional PVDF, that after the consequent hydrolysis of the phosphonate group into phosphonic acid showed anticorrosion properties to steel. Following the same concept, a cyclic carbonate functional MAF monomer (MAF-cyCB) was also copolymerized with VDF. The cyclic carbonate groups in the obtained PVDF copolymer was then opened by aminopropyltriethoxysilane to introduce a silane group, that by its hydrolysis allowed the copolymer to adhere strongly onto substrates. Finally, a terpolymer based on PVDF functional with both a phosphonate and a triethoxysilane group is prepared. The silane group was then hydrolyzed and crosslinked to obtain a 3D network of polymers. Finally, the hydrolysis of the phosphonate group into phosphonic acid led to material that can be employed in Eu(III) ion extraction from water
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Smrčková, Markéta. "Hybridní kompozity kombinující krátká houževnatá vlákna a částicové plnivo v polymerní matrici." Master's thesis, Vysoké učení technické v Brně. Fakulta chemická, 2011. http://www.nusl.cz/ntk/nusl-216678.

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In this work, the effect of adding short deformable polyvinylalcohol fibers into dimethacrylate resins on mechanical properties of composite materials was investigated. Furthermore, micro- or nano-fillers were added into the matrix. The effect of filler/short fibers combination on mechanical properties of so-called hybrid composites was studied. Composites were characterized by differential compensation photocalorimetry (DPC), termogravimetric (TGA) and dynamic mechanical (DMA) analysis. The fracture surfaces were examined using scanning electron (SEM) and confocal laser (CLSM) microscopy. Elastic modulus and strength, the critical value of stress intensity factor and strain energy release rate and the viscoelastic properties of composite materials were measured. The mechanical properties of composite materials are affected not only by the type of filler/reinforcement, but also by properties of the matrix. These properties also depend on the way of network formation during photo-initiated polymerization. For this reason, heat of polymerization, degree of conversion and the maximum polymerization rate of mixture of dimethacrylate monomers were determined.
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Roleček, Jakub. "Příprava hybridních keramických materiálů metodou ice-templating." Doctoral thesis, Vysoké učení technické v Brně. CEITEC VUT, 2019. http://www.nusl.cz/ntk/nusl-408061.

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Ice-templating, známý také jako freeze-casting, je relativně jednoduchou, levnou a velmi univerzální technikou pro výrobu porézních keramických struktur s řízenou mikrostrukturou. Takto připravené keramické struktury jsou použity pro výrobu hybridních keramických kompozitů, nebo jako biokeramické scaffoldy. Hybridní keramické kompozitní materiály jsou založeny na napodobování přírodních/ biologických materiálů. Hlavním cílem je napodobit v přírodě se vyskytující zhouževnaťující mechanismy tím, že porézní keramické struktury jsou po slinutí napuštěny polymerními materiály. Hlavním problémem při výrobě porézních keramických vzorků s velkými rozměry, pomocí metody ice-templating, je dosažení řízeného růstu ledových krystalů v celém objemu vzorku. Aby tedy bylo možné získat velké keramické vzorky s dobře definovanou lamelární strukturou je třeba proces ice-templatingu velmi přesně kontrolovat. Biologická aktivita biokeramických materiálů závisí na kombinaci fyzikálních a chemických charakteristik, které silně souvisejí s jejich mikrostrukturou. Porozita scaffoldů musí být vzájemně propojená a velikostí pórů dostatečně velká pro úspěšný růst kostní tkáně v celém objemu implantátu. Prezentovaná disertační práce je zaměřena na problematiku zvětšování rozměrů keramických vzorků připravených pomocí metody ice-templating, vytvoření víceúrovňové porozity uvnitř vzorků a výrobu hybridních keramických kompozitů pro balistickou ochranu. Keramické suspenze pro ice-templating byly úspěšně připraveny z různých prášků (zejména hydroxyapatitu a oxidu hlinitého s různým plněním keramického prášku od 7,5 obj.% do 45 obj.%. Byl také studován vliv aditiv na utváření lamelární drsnosti a mezilamelárních přemostění. V současnosti je zkoumán dopad těchto strukturních prvků na výsledné mechanické vlastnosti. Hybridní kompozity oxid hlinitý/polymer byly úspěšně navrženy a připraveny z destiček z oxidu hlinitého připravených metodou ice-templating s délkou lamel až 70 mm a různých polymerních pryskyřic. Byla testovány mechanické vlastnosti hybridních kompozitů oxid hlinitý/polymer a výsledky ukázaly, že ice-templating je robustní metodou pro výrobu hybridních kompozitů keramika-polymer s dobrým poměrem pevnost/hustota. Avšak balistické testy hybridních kompozitů oxid hlinitý/polymer odhalily, že většina kompozitů vytvořených v rámci této práce nebyla schopna účinně zastavit střely s průbojným jádrem. Ukázalo se, že kombinace procesu ice-templating a nepřímého 3D tisku umožňuje výrobu biokeramických scaffoldů pro kostní náhrady z hydroxyapatitu s víceúrovňovou porozitou, což by se mohlo ukázat jako prospěšné pro vývoj bioaktivních vysoce porézních scaffoldů se zvýšenou biologickou aktivitou. Ice-templating také významně ovlivnil změnu fázového složení během slinování hydroxyapatitových vzorků.
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Burglova, Kristyna. "Design of easily accessible organosilanes for functional sol-gel hybrid materials." Thesis, Montpellier, Ecole nationale supérieure de chimie, 2012. http://www.theses.fr/2012ENCM0021.

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Les organosilices sont des matériaux en plein essor, qui combinent les propriétés des fragments organiques et ceux de la matrice siliciée. Ces matériaux hybrides ont trouvé des applications dans les domaines de la catalyse, de l'optique, de l'électronique etc. Ils peuvent être préparés par le procédé sol-gel à partir d'organosilanes contenant des fragments organiques à propriétés désirées. Pour former ces matériaux, il est essentiel de simplifier la préparation des organosilanes fonctionnels en réduisant le nombre d'étapes réactionnelles. Aussi, l'un des buts de cette thèse est de développer une méthode de préparation sélective, universelle et à spectre large pour les organo(trialcoxy)silanes. Dans ce but, la réaction Click de CuAAC, connue comme une approche simple de couplage, a été adaptée pour les composés sensibles à l'eau. En utilisant des azotures ou des alcynes contenant la fonction triéthoxysilane avec des partenaires organiques, nous avons réussi à préparer des séries de précurseurs silylés par réaction Click. La réaction est rapide, quantitative et sélective, et tolère une gamme étendue de substrats. De plus, de nouveaux alcynes et azotures comportant deux fonctions triéthoxysilyle ont été préparés, afin d'être clickés sur différentes molécules organiques. Ces précurseurs bissilylés sont des organo(triéthoxy)silanes clickables, précurseurs de silsesquioxanes pontés. En utilisant des molécules fonctionnelles comportant un seul site de dérivatisation, des organosilanes pontés peuvent être obtenus, présentant un fragment organique pendant. De plus, un précurseur contenant une fonction alcyne protégée a été obtenu, ce qui permettra la formation de matériaux multifonctionnels. Certains des précurseurs sol-gel obtenus ont été transformés en matériaux hybrides par le procédé sol-gel. Ceux contenant des fragments organiques connus comme des ligands chiraux actifs ont été choisis pour des tests en catalyse asymétrique. Par ce biais, des ligands chiraux supportés ont été formés, et testés pour quelques réactions bien connues. De plus, cette thèse s'est intéressée à la nano-structuration de matériaux. Des molécules contenant des systèmes aromatiques et des fonctions urée, capables de s'auto-assembler grâce à des interactions non covalentes, ont été conçues et préparées. Dans certains cas, en particulier les systèmes à base de Binol avec des fonctions urée, des nanostructures régulières ont été observées sur des surfaces localisées. En conclusion, les travaux présentés dans cette thèse ont apporté de nouvelles possibilités pour la synthèse d'organo(triéthoxy)silanes, ainsi que des matériaux hybrides à propriétés et applications ciblées
Organosilicates are attracting considerable attention, owing to the combined properties of the organic fragment and inorganic silica matrix. These hybrid materials have found application in catalysis, optics, electronics, etc. They can be prepared by the sol-gel hydrolysis of functional organosilanes with the desired properties. To apply these materials in industry, it is essential to make the preparation of these silylated precursors easier and more efficient by reducing the number of reaction steps. Therefore one of the aims of this thesis is to develop a universal, wide scope and selective method of preparation for trialkoxyorganosilanes. For this purposes the “CuAAC reaction”, known for its simple approach, has been adapted for water-sensitive substrates. Using a silylated azide or silylated alkyne with an organic counterpart, we were able to prepare a series of clicked sol-gel precursors. The reaction is quantitative, fast, and selective and tolerates a wide range of substrates. Moreover, new bissilylated alkynes and azides which can be clicked to various organic molecules were prepared. They represent new families of bridged organotrialkoxysilanes to which a desired organic molecule, bearing only one bonding site, can be incorporated as a pending group with a targeted functionality. Furthermore, a bissilylated precursor bearing a protected alkyne function was prepared, allowing the synthesis of bifunctional materials. Some of the prepared precursors were transformed into hybrid silicas by the sol-gel process. Those containing organic molecules known as active chiral ligands for enantioselective reactions were chosen. By this way, supported chiral ligands were formed and we tested their activity according to known reactions. Additionally, in this thesis the structuring of the materials was also attempted. Molecules bearing aromatic systems and urea functions, which are capable of self-organization thanks to the weak non-covalent bonding interactions, were designed and prepared. In some cases, especially Binol systems with urea function, regular nanostructures on localized areas have been observed. Overall, this thesis brings new possibilities in the synthesis of both trialkoxyorganosilanes precursors and hybrid materials with desired properties and applications
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Bratton, G. J. "Silicate/silicon hybrid materials." Thesis, University of Greenwich, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.234283.

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Books on the topic "Hybridní materiál"

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Hybrid nanomaterials: Synthesis, characterization, and applications. Hoboken, N.J: Wiley, 2011.

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Chauhan, Bhanu P. S., ed. Novel Nanoscale Hybrid Materials. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2018. http://dx.doi.org/10.1002/9781119156253.

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Vilela, Carla, Ricardo João Borges Pinto, Susana Pinto, Paula Marques, Armando Silvestre, and Carmen Sofia da Rocha Freire Barros. Polysaccharide Based Hybrid Materials. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-030-00347-0.

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Kim, Chang-Soo, Charles Randow, and Tomoko Sano, eds. Hybrid and Hierarchical Composite Materials. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-12868-9.

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Yan, Bing. Photofunctional Rare Earth Hybrid Materials. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-2957-8.

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Hybrid anisotropic materials for wind power turbine blades. Boca Raton, Fla: CRC Press, 2012.

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Kalia, Susheel, and Krzysztof Pielichowski, eds. Polymer/POSS Nanocomposites and Hybrid Materials. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-030-02327-0.

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Li, Quan, ed. Functional Organic and Hybrid Nanostructured Materials. Weinheim, Germany: Wiley-VCH Verlag GmbH & Co. KGaA, 2018. http://dx.doi.org/10.1002/9783527807369.

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Boker, Alexander, and Patrick van Rijn, eds. Bio-Synthetic Hybrid Materials and Bionanoparticles. Cambridge: Royal Society of Chemistry, 2015. http://dx.doi.org/10.1039/9781782622109.

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Brown, Richard. RF/microwave hybrids: Basics, materials and processes. New York: Springer, 2011.

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Book chapters on the topic "Hybridní materiál"

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Haldar, Manas K., Michael D. Scott, and Sanku Mallik. "Polydiacetylene-Containing Liposomes as Sensory Materials." In Hybrid Nanomaterials, 269–83. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2011. http://dx.doi.org/10.1002/9781118003497.ch10.

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Sarkar, Sushovan. "Materials and Methods." In Fixed Bed Hybrid Bioreactor, 41–59. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-33-4546-1_3.

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Cherevan, Alexey S., Paul Gebhardt, Cameron J. Shearer, and Dominik Eder. "Nanocarbon Hybrid Materials." In Carbon Nanomaterials Sourcebook, 625–46. Boca Raton : Taylor & Francis Group, 2016. | “A CRC title.” |: CRC Press, 2018. http://dx.doi.org/10.1201/9781315371337-28.

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Miyazaki, Toshiki, and Chikara Ohtsuki. "Bioinorganic Hybrid Materials." In Encyclopedia of Polymeric Nanomaterials, 167–71. Berlin, Heidelberg: Springer Berlin Heidelberg, 2015. http://dx.doi.org/10.1007/978-3-642-29648-2_138.

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Miyazaki, Toshiki, and Chikara Ohtsuki. "Bioinorganic Hybrid Materials." In Encyclopedia of Polymeric Nanomaterials, 1–6. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-36199-9_138-1.

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Perov, B. V., and I. P. Khoroshilova. "Hybrid composite materials." In Polymer Matrix Composites, 269–304. Dordrecht: Springer Netherlands, 1995. http://dx.doi.org/10.1007/978-94-011-0515-6_6.

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Choudhury, Soumyadip, and Manfred Stamm. "Hybrid Nanostructured Materials for Advanced Lithium Batteries." In Hybrid Nanomaterials, 1–78. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2017. http://dx.doi.org/10.1002/9781119160380.ch1.

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Srivastava, Suneel Kumar, and Vikas Mittal. "Advanced Nanostructured Materials in Electromagnetic Interference Shielding." In Hybrid Nanomaterials, 241–320. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2017. http://dx.doi.org/10.1002/9781119160380.ch5.

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Hüsing, Nicola, and Ulrich Schubert. "Porous Inorganic-Organic Hybrid Materials." In Functional Hybrid Materials, 86–121. Weinheim, FRG: Wiley-VCH Verlag GmbH & Co. KGaA, 2005. http://dx.doi.org/10.1002/3527602372.ch4.

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Coronado, Eugenio, José R. Galán-Mascarós, and Francisco Romero. "Building Multifunctionality in Hybrid Materials." In Functional Hybrid Materials, 317–46. Weinheim, FRG: Wiley-VCH Verlag GmbH & Co. KGaA, 2005. http://dx.doi.org/10.1002/3527602372.ch9.

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Conference papers on the topic "Hybridní materiál"

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Campbell, J. E., G. D. Hibbard, and H. E. Naguib. "Design, Fabrication and Mechanical Characterization of Pyramidal Periodic Cellular Metal/Polyurethane Foam Hybrid Materials." In ASME 2008 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. ASMEDC, 2008. http://dx.doi.org/10.1115/smasis2008-318.

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A new type of hybrid material was designed and fabricated by reinforcing periodic cellular metals (PCMs) with rigid polyurethane (PU) foams. A pyramidal PCM geometry and various densities of two-phase rigid polyurethane foam were used to fabricate three different hybrid materials. These novel hybrid materials may find useful application as cores in sandwich structures. By increasing the density of the polyurethane foam used in the PCM/PU foam hybrids, the stiffness of the hybrid increased allowing the stiffness to be tailored for a specific application. Furthermore, the strength of the hybrids was greater than that of the PCM or foam alone, and in most configurations the strength was greater than the sum of the strength of the PCM and the polyurethane foam. Next, the resilience of the hybrids was greater than that of the PCM or foam alone and was also greater than the sum of the resilience of the PCM and foam. Finally, the impact energy at which surface failure would occur was greater in the hybrid samples than the foams or the PCM and was found to increase with increasing foam density.
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Hatanaka, Motohide, and Mark R. Cutkosky. "Process Planning for Embedding Flexible Materials in Multi-Material Prototypes." In ASME 2003 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2003. http://dx.doi.org/10.1115/detc2003/dfm-48166.

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We describe a set of techniques to permit the fabrication of multi-material layered prototypes with embedded flexible components such as reinforcing fibers, fabrics and electrical wiring. The main challenges are to maintain the shapes of the flexible elements during processing and to control precisely the geometries of adjacent regions of part material without either damaging the flexible elements or being hindered by them. The solutions involve sequences of controlled deposition and/or removal of part material and sacrificial “buffer” material. Functional considerations concerning strength and fatigue life may induce additional constraints on the processing sequence. Where conventional material removal is impractical, we present a new approach involving a hybrid of photolithography and shape deposition manufacturing. Alternative methods of achieving similar functions without cross-boundary embedding can ease fabrication and even improve performance. Design and process selection guidelines have been composed based on fabrication experience.
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Whitney, Thomas J., Thao Gibson, Khalid Lafdi, and Brian Welk. "A Hybrid Metal-to-Composite Joint Fabricated Through Additive Manufacturing Processes." In ASME 2012 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/imece2012-89540.

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Devices and machines which perform additive manufacturing (adding material in a layer-wise or bead-wise manner to produce complex structure rather than removing material through machining) are maturing and entering the commercial market. While small prototype parts are routinely made using these devices, a number of industries, including biomedical and aerospace, are considering using these techniques for production parts. New materials which take advantage of the unique capability of additive manufacturing are beginning to evolve. Hybridization of materials at smaller scales now becomes possible with the precision of additive manufacturing devices. However, the fundamentals of structural performance of materials that can be produced by these methods are still to be explored and understood.. The current effort focuses on characterizing and describing the fundamental processing of hybrid materials produced using a combination of laser sintering of metals combined with polymer infusion of advanced carbon fabric. Ultimately, the work seeks to develop a fundamental understanding of the structural mechanics of these novel graphite-metal materials produced through hybrid processes. By understanding development and location of weak structural planes, effects of voids and discontinuities, load transfer from nano to macro scale, reinforcement distribution, gradients in properties, and effects of residual stress, a complete materials design process beginning with structural requirements and ending with material and process selection can be developed. This paper will summarize the first experimental steps taken to process and fabricate a metal-to-composite hybrid joint using a combination of additive manufacturing and conventional composite processes. Experimental conditions are described and morphology of the resulting hybrids is discussed. Future plans for testing are described.
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Ashkenasy, Nurit. "Bioinspired proton conducting materials." In Organic and Hybrid Sensors and Bioelectronics XIV, edited by Ruth Shinar, Ioannis Kymissis, and Emil J. List-Kratochvil. SPIE, 2021. http://dx.doi.org/10.1117/12.2596164.

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Gorodetsky, Alon, and Atrouli Chatterjee. "Dynamic materials inspired by cephalopods." In Organic and Hybrid Sensors and Bioelectronics XIII, edited by Ruth Shinar, Ioannis Kymissis, and Emil J. List-Kratochvil. SPIE, 2020. http://dx.doi.org/10.1117/12.2569648.

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Gorodetsky, Alon, and Preeta Pratakshya. "Dynamic materials inspired by cephalopods." In Organic and Hybrid Sensors and Bioelectronics XIV, edited by Ruth Shinar, Ioannis Kymissis, and Emil J. List-Kratochvil. SPIE, 2021. http://dx.doi.org/10.1117/12.2597077.

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Ardoña, Herdeline Ann. "Optoelectronically-active peptide materials towards biointerfacing." In Organic and Hybrid Sensors and Bioelectronics XIV, edited by Ruth Shinar, Ioannis Kymissis, and Emil J. List-Kratochvil. SPIE, 2021. http://dx.doi.org/10.1117/12.2595169.

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Nguyen, Thuc-Quyen. "Novel materials for organic electrochemical transistors." In Organic and Hybrid Field-Effect Transistors XX, edited by Oana D. Jurchescu and Iain McCulloch. SPIE, 2021. http://dx.doi.org/10.1117/12.2597204.

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Shuvo, Mohammad Arif Ishtiaque, Md Ashiqur Rahaman Khan, Miguel Mendoza, Matthew Garcia, and Yirong Lin. "Synthesis and Characterization of Nanowire-Graphene Aerogel for Energy Storage Devices." In ASME 2012 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/imece2012-86431.

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The study of graphene has become one of the most exhilarating topics in both academia and industry for being highly promising in various applications. Because of its excellent mechanical, electrical, thermal and nontoxic properties, graphene has shown promising application in energy storage devices such as lithium-ion-battery (LIB), super capacitor and solar cell. In lithium ion battery, graphite is the most commonly used material as anode. However, due to the limited specific surface area of graphite materials, the diffusion of the Li ions in the anode graphite is relatively slow, leading to limited energy storage density. In order to further increase the capacity, nano-structured materials have been extensively studied due to its potential in reducing Li-ion diffusion pathway. To date, one of the most promising approaches to improve the Li-ion diffusion rate is to introduce hybrid nanostructured electrodes that connect the nonconductive high surface area nanowire with nanostructured carbon materials. While there have been several research efforts investigated to fabricate nanowire-graphene hybrids, all the them were focused on randomly distributed nanostructures thus the LIB performance enhancement was limited. Therefore, this paper will introduce a novel hybrid structure with vertically aligned nanowire on graphene aerogel aiming to further increase the performance of LIB. The aligned nanowire array provides a higher specific surface area and could lead to high electrodeelectrolyte contact area and fast lithium ion diffusion rate. While the graphene aerogel structure is electrically conductive and mechanically robust, as well as has low specific density. The developed nanowire/graphene hybrid structure could have the potential to enhance the specific capacity and charge-discharge rate. Scanning Electron Microscopy (SEM) and X-Ray Diffraction (XRD) measurements were used for the initial characterization of this nanowire/graphene aerogel hybrid material system.
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Prabhuram, T., V. Somurajan, and S. Prabhakaran. "Hybrid composite materials." In International Conference on Frontiers in Automobile and Mechanical Engineering (FAME 2010). IEEE, 2010. http://dx.doi.org/10.1109/fame.2010.5714794.

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Reports on the topic "Hybridní materiál"

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Badami, Kaswan, Budi Setiadi Daryono, Achmad Amzeri, and Syaiful Khoiri. COMBINING ABILITY AND HETEROTIC STUDIES ON HYBRID MELON (Cucumis melo L.) POPULATIONS FOR FRUIT YIELD AND QUALITY TRAITS. SABRAO Journal of Breeding and Genetics, October 2020. http://dx.doi.org/10.21107/amzeri.2020.3.

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In different crop plants, combining ability and heterosis are used as important diagnostic tools for assessing the performance of parental genotypes and their hybrids. This research aimed to evaluate heterotic and combining ability effects in the diallel crosses of melon (Cucumis melo L.) for yield- and quality-related traits. Seven melon (C. melo L.) genotypes were grown and crossed in a complete diallel fashion to produce F1 hybrids. During the 2019 crop season, 49 melon genotypes (7 parents + 42 F1 hybrids) were grown in a randomized complete block design with three replications. Observations were made for seven characters. Analysis of variance revealed significant (P ≤ 0.01) differences among the melon genotypes for harvest age, fruit flesh thickness, fruit total soluble solids, fruit length, and fruit diameter and merely significant differences (P ≤ 0.05) for fruit weight. Combining ability analysis revealed that mean squares due to general combining ability (GCA) were significant for fruit diameter but were nonsignificant for all other traits. However, mean squares due to specific combining ability (SCA) were significant for all traits. The parental genotypes PK-165, PK-464, and PK-669 exhibited the highest and desirable GCA effects for yield and quality traits. Hence, these genotypes could be used to generate high-yielding hybrid/open-pollinated cultivars. GCA:SCA ratios further revealed that the traits of harvest age, fruit flesh thickness, fruit total soluble solids, fruit length, and fruit weight were controlled by dominant gene action, whereas fruit diameter was managed by additive and dominant genes. The majority of the traits were controlled by nonadditive gene action, verifying that the said breeding material could be efficiently used for the production of hybrid cultivars on the basis of heterotic effects.
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2

Parola, Stephane. Advanced Photonic Hybrid Materials. Fort Belvoir, VA: Defense Technical Information Center, July 2015. http://dx.doi.org/10.21236/ada626985.

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3

Unroe, Marilyn R. Adaptive, Active and Multifunctional Composite and Hybrid Materials Program: Composite and Hybrid Materials ERA. Fort Belvoir, VA: Defense Technical Information Center, April 2014. http://dx.doi.org/10.21236/ada600876.

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4

Peter, William H., Lonnie J. Love, Phillip C. Chesser, and Katherine T. Gaul. Hybrid Multi-Material Endoskeleton Overmolded Structure for Automotive Powertrain. Office of Scientific and Technical Information (OSTI), July 2018. http://dx.doi.org/10.2172/1459289.

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5

Lambrecht, Walter R. Magneto-Optical Properties of Hybrid Magnetic Material Semiconductor Nanostructures. Fort Belvoir, VA: Defense Technical Information Center, September 2007. http://dx.doi.org/10.21236/ada472402.

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6

Haddad, Tim, and Shawn Phillips. Nanostructured Hybrid Organic/Inorganic Materials. Silsesquioxane Modified Plastics. Fort Belvoir, VA: Defense Technical Information Center, December 1998. http://dx.doi.org/10.21236/ada409298.

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7

Francis, Matthew. Virus-Based Scaffolds for Organic/Inorganic Hybrid Materials. Fort Belvoir, VA: Defense Technical Information Center, January 2006. http://dx.doi.org/10.21236/ada455770.

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8

Haddad, Timothy S., Russell Stapleton, Hong G. Jeon, Patrick T. Mather, and Joseph D. Lichtenhan. Nanostructured Hybrid Organic/Inorganic Materials, Silsesquioxane Modified Plastics. Fort Belvoir, VA: Defense Technical Information Center, January 1996. http://dx.doi.org/10.21236/ada386916.

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9

KURAISHI, AKIRA, STEPHEN W. TSAI, and JULIE WANG. Material Characterization of Glass, Carbon, and Hybrid-Fiber SCRIMP Panels. Office of Scientific and Technical Information (OSTI), December 2002. http://dx.doi.org/10.2172/808591.

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Li, Leiming, Elia Beniash, Eugene R. Zubarev, Wanghua Xiang, and Bryan M. Rabatic. Assembling a Lasing Hybrid Material With Supramolecular Polymers and Nanocrystals. Fort Belvoir, VA: Defense Technical Information Center, September 2003. http://dx.doi.org/10.21236/ada418140.

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