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Dissertations / Theses on the topic 'Nanocomposite Magnets'

Author: Grafiati

Published: 4 June 2021

Last updated: 15 February 2022

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1

Matsumoto, Kenshi. "Crystal Structural Control of Nanomaterials toward High-Performance Permanent Magnets." Kyoto University, 2019. http://hdl.handle.net/2433/245309.

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2

Harrison, Nicola. "Magnetic properties and microstructure of intermediate and low rare earth content Ndâ‚‚Feâ‚â‚„B-based nanocomposite magnets." Thesis, University of Sheffield, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.443883.

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3

Gîrtu, Mihai A. "Magnetic ordering in hybrid organic/inorganic nanocomposites -magnets by design-." The Ohio State University, 1998. http://rave.ohiolink.edu/etdc/view?acc_num=osu1343145729.

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4

Gîr?u, Mihai A. "Magnetic ordering in hybrid organic/inorganic nanocomposites -magnets by design- /." The Ohio State University, 1998. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487949836207972.

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5

Paulsen, Zuraan. "The effects of capping agents on the synthesis of magnetic-luminescent Fe₃O₄ -InP/ZnSe nanocomposite material." University of the Western Cape, 2015. http://hdl.handle.net/11394/5066.

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>Magister Scientiae - MSc<br>Magnetic luminescent nanoparticles of an iron oxide (Fe₃O₄) superparamagnetic core and an indium phosphide/zinc selenide (InP/ZnSe) quantum dot shell are reported. The magnetic nanoparticles (MNP’s) and quantum dots (QD’s) were each synthesized separately before conjugation. The MNP’s were functionalized with a thiol-group allowing the QD shell to bind to the surface of the MNP by the formation of a thiol-metal bond. The nanocomposite was capped with 3-mercaptopropionic acid, 1-propanethiol, 2-methyl-1-propanethiol and their properties investigated using the charac

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6

Kulkarni, Amit [Verfasser]. "Magnetic nanocomposites / Amit Kulkarni." Kiel : Universitätsbibliothek Kiel, 2013. http://d-nb.info/1032171227/34.

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7

Kurt, Mustafa Şükrü. "Nanocomposite magnetic films assembled from nanoparticles." Thesis, University of Leicester, 2016. http://hdl.handle.net/2381/38122.

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This thesis consists of three main investigations. The first of these is a study of the magnetic properties of Fe nanoparticles embedded in an Al matrix, with different volume fraction. Both Fe nanoparticles, with a diameter of ̴ 2 nm, and the Al matrix were deposited from the gas phase. The atomic Fe moment of the Fe nanoparticles in Al is much less than the bulk Fe value because of considerable alloying at the Fe nanoparticle and Al matrix interface. Two important parameters, the exchange field (Hex) and random anisotropy field (Hᵣ), were investigated using the Random Anisotropy Model (RAM).

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8

Lopez, Santiago Alejandra. "Magneto-Optic Polymers and Devices." Diss., The University of Arizona, 2014. http://hdl.handle.net/10150/347075.

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For several decades, the field of magneto-optics (MO) has demonstrated applications that have impact on every day applications such as in optical data storage, magnetic field sensing, crucial for magnetoencephalography and magnetocardiography; and compact and efficient optical isolators, among others. In the past, many of these applications and the devices designed for them have heavily relied on inorganic materials. Organic materials with a high MO response represent an interesting alternative to the inorganic equivalent by not only being a more cost efficient solution, but also by allowing t

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9

DeGeorge, Vincent G. "Chemical Partitioning and Resultant Effects on Structure and Electrical Properties in Co-Containing Magnetic Amorphous Nanocomposites for Electric Motors." Research Showcase @ CMU, 2017. http://repository.cmu.edu/dissertations/885.

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chemical partitioning of Cobalt-containing soft magnetic amorphous and nanocomposite materials has been investigated with particular focus on its consequences on these materials’ nanostructure and electrical resistivity. Theory, models, experiment, and discussion in this regard are presented on this class of materials generally, and are detailed in particular on alloys of composition, (Fe65Co35)79.5+xB13Si2Nb4-xCu1.5, for X={0- 4at%}, and Co-based, Co76+YFe4Mn4-YB14Si2Nb4, for Y={0-4at%}. The context of this work is within the ongoing efforts to integrate soft magnetic metal amorphous and nano

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10

Kim, Bo Yun. "Preparation of Electro- and Magneto-Active Hybrid Nanocomposite Materials." Diss., The University of Arizona, 2011. http://hdl.handle.net/10150/145390.

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This dissertation describes the preparation and characterization of magneto and electro-active hybrid nanocomposite materials. In this research, two hybrid nanocomposite materials, gold-cobalt oxide nanowires and ferrocene functional polymer brushes on electrode surface, were investigated. Polymerizations of magnetic colloidal monomers to form electro-active nanowires and ferrocene functional monomers on electrode to form electro-active polymer brushes were demonstrated. The central focus of this research is utilizing colloidal polymerization and surface-initiated polymerization to prepare ele

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11

Tayade, Renuka. "Theoretical and experimental contribution to the study of exchange-spring magnets." Phd thesis, École normale supérieure de Cachan - ENS Cachan, 2014. http://tel.archives-ouvertes.fr/tel-01062741.

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This thesis is divided into two parts, experimental part presenting the synthesis of exchange spring magnets and theoretical part showing the magnetization dynamics of exchange spring magnets. For the synthesis, ferrite and metal alloy based magnets using mechanical milling and ultrasonic mixing are studied. This part discusses the difficulty in controlling the microstructure during synthesis. Several samples with varying volume fractions of the soft phase are synthesized. It is found that mechanical milling initiates a reaction and this leads to disintegration of the ferrite phase into its in

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12

Wilson, Jessica L. "Synthesis and magnetic properties of polymer nanocomposites." [Tampa, Fla.] : University of South Florida, 2004. http://purl.fcla.edu/fcla/etd/SFE0000380.

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13

Thakur, Dhananjay P. "Fluorescent and Magnetic Nanocomposites for Multimodal Imaging." The Ohio State University, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=osu1274630209.

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14

Hudgins, Daniel. "The Design and Synthesis of Magnetic Nanocomposites." VCU Scholars Compass, 2013. http://scholarscompass.vcu.edu/etd/573.

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Magnetism lies at the core of modern technology and can be found in industries such as oil refining, automotive, telecommunications, personal electronics, and power generation that are integral to our day to day lives. This permeation into everyday life has been enhanced in the past several decades with improvements in material design based upon the principles of nanotechnology leading to smaller, faster, and more efficient devices. The presented research will discuss the synthesis and processing of multiple magnetic nanoparticle structures designed for the enhancement of various, application

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15

Morales, Cesar A. "Magneto-Dielectric Polymer Nanocomposite Engineered Substrate for RF and Microwave Antennas." Scholar Commons, 2011. http://scholarcommons.usf.edu/etd/3255.

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This dissertation presents the first reported systematic investigation on the implementation of multilayer patch antennas over Fe3O4-based polymer nanocomposite (PNC) magneto-dielectric substrates. The PNC substrate is created by the monodispersion of Fe3O4 nanopthesiss, with mean size of 7.5nm, in a polymeric matrix of Polydimethylsiloxane (PDMS). Recently, magneto-dielectric substrates have been proposed by several researchers as a means for decreasing the size and increasing the bandwidth of planar antennas. Nevertheless, factors such as high loss and diminished control over magnetic and di

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16

Sourty, Erwan. "Characterization of magnetic nanocomposites based on cellulosic membranes." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp01/MQ37168.pdf.

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17

Pradhan, Anindya. "Novel Synthetic Routes to Formation of Magnetic Nanocomposites." ScholarWorks@UNO, 2006. http://scholarworks.uno.edu/td/499.

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Novel synthetic routes to formation of gold-magnetite nanoparticles have been designed by sonochemistry. Treatment of preformed magnetite nanoparticles with ultrasound in aqueous media with dissolved tetrachloroauric acid resulted in the formation of gold-magnetite nanocomposite materials. These materials maintained the morphology of the original magnetite particles. The morphology of the gold particles could be controlled by adjusting experimental parameters, including the addition of small amounts of solvent modifiers such as methanol, diethylene glycol, and oleic acid. Further experiments w

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18

Garikapati, Anusha. "Cytotoxicity of biodegradable magnetic nanocomposite spheres for drug delivery purposes." Thesis, Wichita State University, 2010. http://hdl.handle.net/10057/3307.

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The use of nanotechnology is growing rapidly, with potential applications ranging from production to electronics to medicine. Nanotechnology has been proven to have a great impact on biomedicine through its applications in tissue engineering, cancer therapy, hyperthermia, and other drug delivery purposes. Nanomaterials can be fabricated and manipulated to suit the requirements for a particular function. Drug delivery through magnetic nanoparticles is being used for site-specific and controlled drug-release purposes. Magnetic drug transport involves encapsulating a drug in a magnetic nanosphere

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19

Vaughan, Lisa Ann. "Enviromentally benign synthesis and application of some spinel ferrite nanopartilces." Diss., Georgia Institute of Technology, 2011. http://hdl.handle.net/1853/44876.

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In this thesis, the commercial viability of the aminolytic synthesis method is explored through robustness, versatility, and waste reduction studies. We report the preparation of metal precursors and the development of a synthetic approach using an aminolytic reaction of metal carboxylates in oleylamine and non-coordinating solvent. Manganese doping in the cobalt ferrites allows for the investigation of the couplings. All the compositions in the series Co1-xMnxFe2O4, 0.0  x  1.0 were synthesized via the aminolytic reaction. The coercivity decreases with increasing Mn2+ concentration due

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20

Bhaskar, Ajit. "Polymer-silicate and magnetic polymer nanocomposites processing and characterization /." [Gainesville, Fla.] : University of Florida, 2003. http://purl.fcla.edu/fcla/etd/UFE0001201.

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21

Ojha, Shuchi (Shuchi Sunil). "Structure, magnetism and multiferroicity in self-assembled oxide nanocomposites." Thesis, Massachusetts Institute of Technology, 2018. http://hdl.handle.net/1721.1/117936.

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Thesis: Ph. D., Massachusetts Institute of Technology, Department of Materials Science and Engineering, 2018.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 165-181).<br>The route to enhanced functionality in electronic and magnetic devices is often through materials engineering and the use of new materials structures. Oxides, in particular, exhibit a wide range of highly tunable properties due to the interplay of lattice, orbital, charge and spin degrees of freedom. Recently, a new paradigm for epitaxy has been studied, where two oxide phases self-assem

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22

Bsawmaii, Laure. "Exaltation des différents effets magnéto-optiques à l’aide de réseaux résonants diélectriques basés sur un nano-composite magnétique obtenu par voie sol-gel." Thesis, Lyon, 2020. http://www.theses.fr/2020LYSES028.

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Les dispositifs photoniques magnéto-optiques (MO) sont l’objet d’une attention particulière pour leur capacité à améliorer la sensibilité des biocapteurs ou leur sensibilité au champ magnétique. Les effets MO, pouvant se manifester par une rotation de polarisation ou une modification d'intensité de la lumière sous champ magnétique, sont cependant plutôt faibles lors d’interactions simples (réflexion ou transmission) avec les films magnétiques classiques. Le dispositif proposé dans le cadre de ce travail permet d’exalter les effets MO. C’est une structure diélectrique planaire simple formée par

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23

Smith, Damon. "Magneto-Optic Spectroscopy and Near-Field Optical Coupling in Nanoparticle Composite Materials." ScholarWorks@UNO, 2005. http://scholarworks.uno.edu/td/246.

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The Faraday rotation spectrum of composites containing magnetite nanoparticles is found to be dependent on the interparticle spacing of the constituent nanoparticles. The composite materials are prepared by combining chemicallysynthesized Fe3O4 (magnetite) nanoparticles (8 nm diameter) and poly(methylmethacrylate) (PMMA). Composites are made containing a range of nanoparticle concentrations. The peak of the main spectral feature depends on nanoparticle concentration; this peak is observed to shift from approximately 470 nm for (dilute composites) to 560 nm (concentrated). A theory is

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24

Lan, Song. "High Temperature Nitridation of Powder and Nanocomposite Iron-based Magnetic Alloys." Case Western Reserve University School of Graduate Studies / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=case1527853642053372.

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25

Nakouri, Kalthoum. "Synthèse et caractérisation de poudres magnétiques pour aimants nanocomposites." Thesis, Normandie, 2020. http://www.theses.fr/2020NORMR098.

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La réalisation d’aimants permanents nanocomposites constitués d’un mélange d’une phase magnétique dure, de coercitivité élevée, et d’une phase magnétique douce, d’aimantation élevée, est une des possibilités d’obtenir de nouveaux matériaux pour aimants permanents sans terres rares. Dans ce travail, le choix s’est porté sur la phase Fe65Co35 comme phase douce et sur la phase SrFe12O19 comme phase dure. Des poudres nanométriques ont été synthétisées par voie chimique, en adaptant des procédés existants. Des nanoparticules Fe65Co35 d’une taille d’environ 10 nm ont été synthétisées par la méthode

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26

Takacs, Hélène. "Nanocomposites magnétiques à conductivité macroscopique nulle pour applications en RF." Thesis, Université Grenoble Alpes (ComUE), 2015. http://www.theses.fr/2015GREAT080/document.

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L'ultra-miniaturisation en RF bute sur le paradigme historique du magnétisme : la trop grande conductivité des métaux de transition (Fe, Co, Ni) et de leurs alliages présentant par ailleurs les plus fortes perméabilités. A l'opposé, leurs oxydes (ferrites) sont bien isolants mais leurs propriétés à haute fréquence sont drastiquement plus faibles. Dans ce contexte, l'idée de matériaux magnétiques artificiels à base de polymère encapsulant des nanoparticules magnétiques métalliques se pose en alternative. Dans cette thèse, deux formulations de ce type encore peu développé de nanocomposites ont é

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27

Parvaneh, Hamed. "Growth and characterisation of niobium/gadolinium superconductor-ferromagnet nanocomposites." Thesis, University of Cambridge, 2006. https://www.repository.cam.ac.uk/handle/1810/183639.

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Superconductivity and ferromagnetism are two antagonistic physical phenomena which their coexistence in a uniform material can be resolved only under extraordinary conditions. The reason for that is the phonon-mediated attraction energy between electrons which results in the formation of the so-called Cooper pairs, is usually smaller that the exchange (Zeeman) interaction between electrons which tend to align the electron spins. However, non-zero total momentum Cooper pairs can be accomplished even in the presence of an exchange field as surprisingly! predicted first by Fulde and Ferrel [1] an

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28

Changyong, Lu. "Synthesis and characterization of magnetic nanocomposites and their applications study." Doctoral thesis, Universitat Autònoma de Barcelona, 2017. http://hdl.handle.net/10803/457572.

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Los nanomateriales, especialmente las nanopartículas, se convierten en una de las áreas más atractivas no sólo en la investigación científica, sino también en las aplicaciones industriales. En esta tesis se ha estudiado la preparación de nanopartículas de magnetita, sus nanocompuestos relacionados y la aplicación de los nanomateriales obtenidos. Las nanopartículas core-shell de Fe3O4@SiO2 se sintetizaron mediante métodos de microemulsión inversa estándar y de microondas. Las nanopartículas obtenidas se caracterizaron con diferentes técnicas de laboratorio y se estudiaron los diferentes efecto

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29

Bidaud, Clémentine. "Photostructuration de matériaux nanocomposites à propriétés magnéto-optiques : vers la réalisation de composants pour l'optique intégrée." Thesis, Mulhouse, 2018. http://www.theses.fr/2018MULH2061/document.

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L’objectif principal de ce travail de thèse est de formuler un matériau nanocomposite doté de propriétés magnéto-optiques (MO) et photostructurable pour, in fine, réaliser des dispositifs optiques non-réciproques pouvant être intégrés au sein de puces optiques. Le matériau nanocomposite MO est obtenu en dispersant des nanoparticules magnétiques (NP) de ferrite de cobalt dans une matrice sol-gel d’alcoxydes de silicium et de titane. Les NP confèrent au matériau ses propriétés MO. La formulation du matériau est photostructurable en UV profond (193, 266 nm) sans ajout de photoamorceur et se compo

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Meenach, Samantha Ann. "SYNTHESIS AND CHARACTERIZATION OF MAGNETIC HYDROGEL NANOCOMPOSITES FOR CANCER THERAPY APPLICATIONS." UKnowledge, 2010. http://uknowledge.uky.edu/gradschool_diss/108.

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Currently, cancer is the second leading cause of death in the United States. Conventional cancer treatment includes chemotherapy, radiation, and surgical resection, but unfortunately, all of these methods have significant drawbacks. Hyperthermia, the heating of cancerous tissues to between 41 and 45°C, has been shown to improve the efficacy of cancer therapy when used in conjunction with irradiation and/or chemotherapy. In this work, a novel method for remotely administering heat is presented. This method involves heating of tumor tissue using hydrogel nanocomposites containing magnetic nanopa

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31

Lin, Mian. "Synthesis of magnetic nanoparticles and nanocomposites via water-in-oil microemulsions." Thesis, Loughborough University, 2006. https://dspace.lboro.ac.uk/2134/7817.

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The effects of surfactants, co-surfactants, aqueous phase and temperature on the solubilisation capability of microemulsion systems were investigated. Appropriate water-in-oil (w/o) microemulsion systems for the synthesis of nanomaterials were selected in consideration of the higher solubilisation and the better thermo-stability. Mono-dispersed iron oxide nanoparticles with the size of 1-5 nm were synthesised via Igepal CO-520/cyclohexane w/o microemulsion at 25°C. The size of particles increased from 1 nm to 10 nm with the increase of the size of water pools. The original particles as prepare

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32

Sharifabad, Maneea Eizadi. "Study of porous magnetic nanocomposites for bio-catalysis and drug delivery." Thesis, University of Central Lancashire, 2016. http://clok.uclan.ac.uk/20423/.

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Despite advances in diagnostic procedures and treatments, the overall survival rate from cancer has not improved substantially over the past 30 years. One promising development is the encapsulation of toxic cancer chemotherapeutic reagents within biocompatible nanocomposite materials. The targeted stimuli triggered drug release restrict the toxic drugs to the tumour site, thereby reducing the effects of “free drug” on healthy tissues. One of the most versatile and safe materials used in medicine are iron oxide nanoparticles. This project describes the development of several formulations based

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33

Satarkar, Nitin S. "REMOTE CONTROLLED HYDROGEL NANOCOMPOSITES: SYNTHESIS, CHARACTERIZATION, AND APPLICATIONS." UKnowledge, 2010. http://uknowledge.uky.edu/gradschool_diss/85.

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There is significant interest in the development of hydrogels and hydrogel nanocomposites for a variety of biomedical applications including drug delivery, sensors and actuators, and hyperthermia cancer treatment. The incorporation of nanoparticulates into a hydrogel matrix can result in unique material characteristics such as enhanced mechanical properties, swelling response, and capability of remote controlled (RC) actuation. In this dissertation, the development of hydrogel nanocomposites containing magnetic nanoparticles/carbon nanotubes, actuation with remote stimulus, and some of their a

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34

Misak, Heath Edward. "Pre-clinical treatment of skin cancer by magnetic-protein nanocomposite drug delivery system." Diss., Wichita State University, 2011. http://hdl.handle.net/10057/5152.

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Skin cancer affects many people worldwide and is life threatening without treatment. People with light skin, genetic diseases, and high exposure to ultraviolet radiation (UVR) are at a high risk of developing skin cancer. Once developed, skin cancer can spread to the rest of the body, including organs inside the body. If the cancer is established, it is difficult to control and treat. Skin cancer is diagnosed by the depth at which it has spread below the skin. Conventional treatments such as creams and lotions treat only the outer skin surface, while cancer below the skin is allowed to thrive.

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35

Stojak, Kristen Lee. "Synthesis and Properties of Polymer Nanocomposites with Tunable Electromagnetic Response." Scholar Commons, 2013. http://scholarcommons.usf.edu/etd/4587.

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Multifunctional polymer nanocomposites (PNCs) are attractive for the design of tunable RF and microwave components such as flexible electronics, attenuators, and antennas due to cost-effectiveness and durability of polymeric matrices. In this work, three separate PNCs were synthesized. Magnetite (Fe3O4) and cobalt ferrite (CFO) nanoparticles, synthesized by thermal decomposition, were used as PNC fillers. Polymers used in this work were a commercial polymer provided by the Rogers Corporation (RP) and polyvinylidene fluoride (PVDF). PNCs in this thesis consist of Fe3O4 in RP, CFO in RP, and Fe3

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36

Vono, Lucas Lucchiari Ribeiro. "Design of nanocatalysts supported on magnetic nanocomposites containing silica, ceria and titania." Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/46/46136/tde-17082016-082602/.

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Magnetic separation has received a lot of attention as a robust, highly efficient and rapid catalyst separation technology. Many studies have focused on developing methodologies for the immobilization of catalytic active species, but the development of magnetic supports has been mainly limited to silica, polymer or carbon-coated magnetic nanoparticles (NPs). The design of magnetic nanocomposites and the incorporation of other oxides are highly welcome to broaden the application of this separation technology in the field of catalysis. In this context, studies of the thermal stability of silica-

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37

Wamocha, Humphrey Lusenaka. "Synthesis and characterization of 5-Fu loaded magnetic nanocomposite spheres for advanced drug delivery." Diss., Wichita State University, 2010. http://hdl.handle.net/10057/3468.

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Magnetic targeted drug delivery, the science concerned with the design, characterization and use of magnetic materials as carriers of therapeutic agents presents promising advances in the study of drug delivery and pharmacokinetics. This is made possible by use of nanotechnology in the areas, such as engineering, biotechnology, chemistry and other sciences to develop new materials and mechanisms that can be channeled to improve the way diseases are identified and treated. The aim of this research was to introduce the use of cobalt zinc ferrite (Co₀․₅Zn₀․₅Fe₂O₄) nanoparticles as magnetic materi

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Gutierrez, Angela. "DEVELOPMENT OF MAGNETIC NANOCOMPOSITE MATERIALS AS REUSABLE ADSORBENTS FOR CHLORINATED ORGANICS IN CONTAMINATED WATER." UKnowledge, 2019. https://uknowledge.uky.edu/cme_etds/107.

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The constant growth in population worldwide over the past decades continues to put forward the need to provide access to safe, clean water to meet human needs. There is a need for cost-effective technologies for water and wastewater treatment that can meet the global demands and the rigorous water quality standards and at the same maximizing pollutant efficiency removal. Current remediation technologies have failed in keeping up with these factors without becoming cost-prohibitive. Nanotechnology has recently been sought as a promising option to achieve these goals. The use of iron oxide magne

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Repa, Kristen Lee Stojak. "Confinement Effects and Magnetic Interactions in Magnetic Nanostructures." Scholar Commons, 2016. http://scholarcommons.usf.edu/etd/6573.

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Multifunctional nanocomposites are promising for a variety of applications ranging from microwave devices to biomedicine. High demand exists for magnetically tunable nanocomposite materials. My thesis focuses on synthesis and characterization of novel nanomaterials such as polymer nanocomposites (PNCs) and multi-walled carbon nanotubes (MWCNTs) with magnetic nanoparticle (NP) fillers. Magnetite (Fe3O4) and cobalt ferrite (CoFe2O4) NPs with controlled shape, size, and crystallinity were successfully synthesized and used as PNC fillers in a commercial polymer provided by the Rogers Corporation a

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40

Bez, Riadh. "Nouveaux aimants nanocomposites à base d'intermetallique de terre rare." Thesis, Paris Est, 2015. http://www.theses.fr/2015PESC1162.

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Ce travail s’inscrit dans le cadre général de la recherche de nouveaux matériaux nanocomposites durs/doux dont le domaine d’application concerne les aimants permanents performants. Ces nanocomposites présentent des propriétés magnétiques intéressantes grâce à leur forte rémanence combinée à une grande coercivité. Ceci permet d’augmenter considérablement l’énergie spécifique de l’aimant. Dans ce contexte, nous avons élaboré et étudié de nouveaux nanocomposites à base de phases dures hors équilibre Sm(Fe,Si)9C et Sm(Fe,Ga)9C et des phases douces _-Fe et FeCo. Pour les nanocomposites intrinsèques

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Fruhner, Lisa Sarah Verfasser], Stephan [Akademischer Betreuer] [Förster, and Walter [Akademischer Betreuer] Richtering. "Towards magneto-elastomeric nanocomposites with supramolecular activity / Lisa Sarah Fruhner ; Stephan Friedrich Förster, Walter Richtering." Aachen : Universitätsbibliothek der RWTH Aachen, 2021. http://d-nb.info/1235221806/34.

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42

Gojdka, Björn [Verfasser]. "New Concepts for Functional 0-3 Nanocomposites and Magnetic Field Sensors / Björn Gojdka." Kiel : Universitätsbibliothek Kiel, 2012. http://d-nb.info/1028941226/34.

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43

Shao, Xiaoyan. "Synthesis and characterization of soft magnetic thin films, nanocomposites, and nanowires by electrodeposition." Available to US Hopkins community, 2002. http://wwwlib.umi.com/dissertations/dlnow/3068210.

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Patel, Ronakkumar S. "Development, Characterization, and Magnetic Hypothermia Behaviors of Engineered Fe3O4 Nanocomposites for Biomedical Applications." University of Cincinnati / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1368024719.

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45

Lagerqvist, Ulrika. "Solution-Chemical Synthesis of Cobalt and Iron:Zinc Oxide Nanocomposite Films." Doctoral thesis, Uppsala universitet, Oorganisk kemi, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-280619.

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The potentially most important challenges today are related to energy and the environment. New materials and methods are needed in order to, in a sustainable way, convert and store energy, reduce pollution, and clean the air and water from contaminations. In this, nanomaterials and nanocomposites play a key role, and hence knowledge about the relation between synthesis, structure, and properties of nanosystems is paramount. This thesis demonstrates that solution-chemical synthesis, using amine-modified acetates and nitrates, can be used to prepare widely different nanostructured films. By adju

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Hawkins, Ashley Marie. "BIODEGRADABLE HYDROGELS AND NANOCOMPOSITE POLYMERS: SYNTHESIS AND CHARACTERIZATION FOR BIOMEDICAL APPLICATIONS." UKnowledge, 2012. http://uknowledge.uky.edu/cme_etds/10.

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Hydrogels are popular materials for biological applications since they exhibit properties like that of natural soft tissue and have tunable properties. Biodegradable hydrogels provide an added advantage in that they degrade in an aqueous environment thereby avoiding the need for removal after the useful lifetime. In this work, we investigated poly(β-amino ester) (PBAE) biodegradable hydrogel systems. To begin, the factors affecting the macromer synthesis procedure were studied to optimize the reproducibility of the resulting hydrogels made and create new methods of tuning the properties. Hydro

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Yi, Jae-Young. "Microstructure and magnetic properties of Co-(CoO, CoNiO2̳, NiO) and Cox̳Ni1̳-̳x̳-CoO nanocomposite thin films /." Diss., Connect to a 24 p. preview or request complete full text in PDF format. Access restricted to UC campuses, 2000. http://wwwlib.umi.com/cr/ucsd/fullcit?p3000403.

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Gass, James. "Functional Magnetic Nanoparticles." Scholar Commons, 2012. http://scholarcommons.usf.edu/etd/4047.

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Nanoparticle system research and characterization is the focal point of this research and dissertation. In the research presented here, magnetite, cobalt, and ferrite nanoparticle systems have been explored in regard to their magnetocaloric effect (MCE) properties, as well as for use in polymer composites. Both areas of study have potential applications across a wide variety of interdisciplinary fields. Magnetite nanoparticles have been successfully dispersed in a polymer. The surface chemistry of the magnetic nanoparticle proves critical to obtaining a homogenous and well separated high densi

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Zhang, Jiawei. "Multi-functional nanocomposites for the mechanical actuation and magnetoelectric conversion." Phd thesis, INSA de Lyon, 2011. http://tel.archives-ouvertes.fr/tel-00765011.

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Magnetoelectric (ME) interactions in matter correspond to the appearance of magnetization by means of an electric field (direct effect) or the appearance of electric polarization by means of a magnetic field (converse effect). The composite laminates which possess large ME coefficient, have attracted much attention in the field of sensors, modulators, switches and phase inverters. In this thesis, we report on the ME performances of the bi- and tri- layered composites. It is shown that their ME couplings can be achieved by combining magnetostrictive and piezoelectric layers. A model based on a

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Mohseni, Farzin. "Nanostructured rare-earth free permanent magnets." Doctoral thesis, 2021. http://hdl.handle.net/10773/31064.

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In this work we explore on the rare-earth free nanostructured permanent magnets, including thin films, nanoparticles and nanocomposites with the focus on Alnico magnets and hexaferrites. Here we investigate the effects of different heat treatment conditions on structural and magnetic properties of RFsputtered Alnico V thin films on Si substrates. We show an in-depth analysis of the various heat treated samples with high coercivity to unveil the origin of high coercivity in these thin films with a recently discovered Fe-Co rich Body- Centered Tetragonal (bct) phase. Exchange-spring magne

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