Academic literature on the topic 'Silica nano-particles'

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Journal articles on the topic "Silica nano-particles"

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Bahadori, Hadi, and Payam Hosseini. "REDUCTION OF CEMENT CONSUMPTION BY THE AID OF SILICA NANO-PARTICLES (INVESTIGATION ON CONCRETE PROPERTIES)." Journal of Civil Engineering and Management 18, no. 3 (2012): 416–25. http://dx.doi.org/10.3846/13923730.2012.698912.

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In this study, effects of replacing cement with colloidal amorphous silica nano-particles have been experimentally investigated on the physical and mechanical properties, durability and microstructure of concrete. Experimental results include workability, fresh concrete density, and hardened concrete properties like compressive strength at different ages of 3, 7, and 28-days, and also 28-days splitting tensile strength. Furthermore, influence of silica nano-particles on durability and microstructure of concrete for 28-days specimens was tested by conducting water absorption test, Scanning Elec
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Alvansazyazdi, Mohammadfarid, Fabricio Alvarez-Rea, Jhon Pinto-Montoya, et al. "Evaluating the Influence of Hydrophobic Nano-Silica on Cement Mixtures for Corrosion-Resistant Concrete in Green Building and Sustainable Urban Development." Sustainability 15, no. 21 (2023): 15311. http://dx.doi.org/10.3390/su152115311.

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The use of hydrophobic nano-silica particles in concrete for improved corrosion resistance and durability has been explored in recent years, and its potential impact on sustainable urban development and green building practices has been studied. The impact of substituting hydrophobic nano-silica particles for 2% of the cement weight in high-strength concrete mixes was investigated in this research. The study focuses on evaluating the physical-mechanical properties, including compressive strength, tensile strength, modulus of elasticity, and Poisson’s ratio. Additionally, the influence of these
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Tahmassebi, Nargess. "Effect of Addition of Nano Silica on Modulus of an Acrylic/Melamine Automotive Topcoat." Advanced Materials Research 488-489 (March 2012): 915–18. http://dx.doi.org/10.4028/www.scientific.net/amr.488-489.915.

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In the present study, the influence of addition of various loads of hydrophobic nano silica on modulus of an acrylic melamine automotive topcoat was investigated. The results indicated that addition of hydrophobic nano silica to acrylic melamine decreased its Young’s modulus. The same behavior was observed for nano indentation modulus just at low nano silica content. This property was increased at high nano silica content. Poor interaction between nano particles / acrylic melamine and ball bearing effects of nano particles were used to explain decrease in modulus. Increase in nano indentation
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Cai, Jixiang, Youwen Li, Lianghuan Wei, et al. "Recovery of Chlorosilane Residual Liquid to Prepare Nano-Silica via the Reverse Micro-Emulsion Process." Materials 16, no. 21 (2023): 6912. http://dx.doi.org/10.3390/ma16216912.

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In this paper, nano-silica particles were prepared from chlorosilane residue liquid using an inverse micro-emulsions system formed from octylphenyl polyoxyethylene ether (TX-100)/n-hexanol/cyclohexane/ammonia. The influence of different reaction conditions on the morphology, particle size, and dispersion of nano-silica particles was investigated via single-factor analysis. When the concentration of chlorosilane residue liquid (0.08 mol/L), hydrophile-lipophilic-balance (HLB) values (10.50), and the concentration of ammonia (0.58 mol/L) were under suitable conditions, the nano-silica particles
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Wang, Shuo, Meng Cao, Hongqian Xue, et al. "Nano-silica reinforced epoxy resin/nano-rubber composite material with a balance of stiffness and toughness." High Performance Polymers 33, no. 6 (2021): 685–94. http://dx.doi.org/10.1177/0954008320988752.

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In the electronics and aerospace industries, epoxy resins are generally regarded as economical and efficient adhesives and have a high status. However, epoxy resins are highly crosslinked polymers and are very brittle adhesives where they are prone to fast crack propagation under dynamic loads. Therefore, it is very necessary to enhance the toughness of epoxy resin adhesives. Nano-rubber has been proved to be an important toughening agent for epoxy resin, which can significantly improve the fracture toughness of epoxy resin. However, increasing the toughness of epoxy resin by adding nanomateri
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Zhou, Li Zhong, and De Chang Jia. "Influence of Nano-Silica on Microstructure and Mechanical Properties of SiO2/BN Ceramics." Key Engineering Materials 353-358 (September 2007): 1529–32. http://dx.doi.org/10.4028/www.scientific.net/kem.353-358.1529.

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In this paper, nano-silica particles were incorporated to a fused silica-boron nitride dual phase ceramics originally using micrometer sized particles as starting powders. Effects of nano-silica content on density, sintering behavior, mechanical properties and microstructure of the dual phase ceramics were investigated. It was found that with the addition of nano-silica particles, the density and mechanical properties of the dual phase ceramics increased. Flexural strength and fracture toughness of them attained to 51.4MPa and 0.8MPa·m1/2, respectively. The increased density and spatial networ
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Liu, Fang, Zhen Qing Wang, Wen Yan Liang, and Yong Wei Qu. "Effect of Nano-Silica on Flexural Properties of Epoxy Resin." Advanced Materials Research 383-390 (November 2011): 3845–48. http://dx.doi.org/10.4028/www.scientific.net/amr.383-390.3845.

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Based on Zwick/Roell,this paper had carried on flexural experiments of epoxy resin filled with nano-silica particles, obtaining related mechanical properties.Microstructures of nanocomposites were analyzed by scanning electron microscopy (SEM) in the meanwhile. The flexural experiments revealed that nano- silica particles strengthened epoxy resin very well, and flexural modulus of modified matrices rised due to rigid silica particles, compared with pure epoxy matrices. Flexural strengths of epoxies modified by silica nanoparticles improved significantly.
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Prathebha, P., Santhappan Aswini, and J. Revathy. "Effect of Nanoparticles on Strength and Durability Properties on Cement Mortar." Applied Mechanics and Materials 857 (November 2016): 65–70. http://dx.doi.org/10.4028/www.scientific.net/amm.857.65.

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The nanotechnology provides an impact on construction industry materials with new properties and produce material with better performance. This paper presents the experimental investigation on the effects of nano particles incorporated in the cementitious materials to study the strength and durability properties of cement mortar. Nano particles such as nano alumina (NA), nano ferric oxide (NF) and nano silica (NS) were mixed at different proportions of 0.5%, 1% and 1.5% by weight of binder in single and binary combinations. Mechanical properties such as compressive strength and split tensile s
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Kurdi, Abdulaziz, and Li Chang. "Comparative Tribological and Mechanical Property Analysis of Nano-Silica and Nano-Rubber Reinforced Epoxy Composites." Applied Mechanics and Materials 875 (January 2018): 53–60. http://dx.doi.org/10.4028/www.scientific.net/amm.875.53.

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Nano-filler reinforced epoxy composites has been investigated in this study subjected to various mechanical and pin-on-disk tribological tests. Two different types of nano-filler were used namely, rigid nano-silica (SiO2) particles and soft nano-rubber particles. Incorporation of nano-filler in polymer matrix enhance mechanical properties. In addition, tribological response of composites are also better compared to neat epoxy polymer. However, the effect of nano-silica addition is much more pronounced than that of nano-rubber due to the high rigidity of nano-silica reinforced epoxy composite.
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Lushinga, Nonde, Zejiao Dong, and Liping Cao. "Evaluating the High-Temperature Properties and Reaction Mechanism of Terminal Blend Rubber/Nano Silica Composite Modified Asphalt Using Activated Rubber." Nanomaterials 12, no. 24 (2022): 4388. http://dx.doi.org/10.3390/nano12244388.

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Terminal blend (TB) rubberized asphalt is a popular technology in the production of rubberized asphalt. However, it always presents challenges regarding the inadequate high-temperature rutting performance of the binders. Additionally, crumb rubber (CR), a modifier of asphalt is a cross-linked material which presents poor compatibility between CR particles and bitumen. Incorporating nanomaterials and pretreating CR particles are two possible solutions to address this drawback. But the performance improvement and modification mechanism of the composite TB binders is not clearly understood. There
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Dissertations / Theses on the topic "Silica nano-particles"

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Moayedi, Atousa <1991&gt. "Antibacterial effects of Nitric Oxide releasing Silica Nano particles." Master's Degree Thesis, Università Ca' Foscari Venezia, 2021. http://hdl.handle.net/10579/20250.

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Antimicrobial materials are essential in many medical applications. In the recent years a lot of research has been dedicated to nitric oxide-releasing nanomaterials and in particular mesoporous particles in order to improve the storage and delivery performances of nitric oxide carriers for a wide range of applications due to their high surface area-to-volume ratio and easy penetration. In this report the principles underlying in this process are first reported with particular attention towards the mesoporous silica nanoparticles. Next, the process dependence on such parameters as size, shape,
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Sachse, Sophia. "Nano-sized particles emission during drilling and low velocity impact of silica-based thermoplastic nanocomposites." Thesis, Cranfield University, 2012. http://dspace.lib.cranfield.ac.uk/handle/1826/8603.

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During the past decade, polymer nanocomposites have emerged as a novel and rapidly developing class of materials and attracted considerable investment in research and development worldwide. Driven by the certainty that by the integration of low nano ller amounts, existing material properties can be improved and moreover new material properties can be developed. Despite the clear bene t and therefore, increasing research, production and utilisation of nanomaterials, little is known about how nanocomposites will perform over their whole life cycle, especially in the usage and end of life phase.
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Alfinaikh, Reem. "Preparation and Characterization of Poly(Ethylene Oxide)(MW 35K and 100K)/ Silica Nanoparticle Composites." DigitalCommons@Robert W. Woodruff Library, Atlanta University Center, 2017. http://digitalcommons.auctr.edu/cauetds/109.

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In recent years, polymer-inorganic nanoparticle compositions have been a subject of considerable interest in order to achieve desired chemical, physical properties and mechanical properties. In this study a polymer nanocomposites have been prepared by incorporating silica nanoparticles (~20 nm) as fillers into poly(ethylene oxide) matrix. The composites of poly(ethylene oxide) and silica nanoparticles were prepared by solution blending. The product composites were powders. The thermal properties of the composites were investigated using the Differential Scanning Calorimetry. The Nuclear Magnet
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Venkataraman, Manoj. "THE EFFECT OF COLLOIDAL STABILITY ON THE HEAT TRANSFER CHARACTERISTICS OF NANOSILICA DISPERSED FLUIDS." Master's thesis, University of Central Florida, 2005. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/3656.

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Addition of nano particles to cooling fluids has shown marked improvement in the heat transfer capabilities. Nanofluids, liquids that contain dispersed nanoparticles, are an emerging class of fluids that have great potential in many applications. There is a need to understand the fundamental behavior of nano dispersed particles with respect to their agglomeration characteristics and how it relates to the heat transfer capability. Such an understanding is important for the development and commercialization of nanofluids. In this work, the stability of nano particles was studied by measuring the
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Kir, Onur [Verfasser], Wolfgang H. [Akademischer Betreuer] Binder, and Guido [Akademischer Betreuer] Kickelbick. "Surface initiated polymerization of isoprene from silica nano- and glass particles via living anionic and controlled radical polymerization techniques / Onur Kir. Betreuer: Wolfgang H. Binder ; Guido Kickelbick." Halle, Saale : Universitäts- und Landesbibliothek Sachsen-Anhalt, 2013. http://d-nb.info/1050977734/34.

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Chou, Berryinne. "Nano-Scale Modified Inorganic/Organic Hybrid Materials as Proton Conductors." Case Western Reserve University School of Graduate Studies / OhioLINK, 2006. http://rave.ohiolink.edu/etdc/view?acc_num=case1144419661.

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M'Nasri, Najib. "Elaboration de nanomatériaux composites métal@nanoparticules de silice mésoporeuses (MSN) : étude des performances catalytiques en phase aqueuse et des propriétés d'adsorption sélective du diiode en phase gaz." Thesis, Montpellier 2, 2014. http://www.theses.fr/2014MON20199.

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Ce travail a concerné l'étude de la fonctionnalisation métallique et du contrôle morphologique de nanoparticules de silice mésoporeuse appelées MSN. La voie de fonctionnalisation par synthèse directe a été privilégiée et a consisté en une encapsulation des précurseurs métalliques dans la phase porogène. L'insertion de cuivre, palladium, platine, argent or et de bimétalliques Cu/Pd et Pd/Pt a été réalisée. Il résulte de cette approche une localisation des nanoparticules métalliques dans les pores et d'une grande accessibilité des fonctionnalités à l'origine des excellentes performances catalyti
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Sandra, Fabien. "Elaboration de matériaux céramiques poreux à base de SiC pour la filtration et la dépollution." Thesis, Montpellier 2, 2014. http://www.theses.fr/2014MON20015.

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En 1920, le moteur Diesel marque l'histoire en se faisant une place dans le milieu de l'automobile. Toutefois, malgré la révolution que représente le moteur Diesel notamment en terme de technologie (moteur à combustion interne dont l'allumage n'est pas commandé mais spontané par phénomène d'auto-inflammation (absence de bougie d'allumage)), des inconvénients majeurs subsistent, tout particulièrement au niveau environnemental et sanitaire (émission de gaz à effet de serre, prélèvement accru d'énergie fossile, impact direct sur la santé). Afin de lutter contre ces émissions, l'Union Européen à m
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Lee, Sang Kwon. "Processing and characterization of silicon carbide (6H-SiC and 4H-SiC) contacts for high power and high temperature device applications." Doctoral thesis, KTH, Microelectronics and Information Technology, IMIT, 2002. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3335.

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<p>Silicon carbide is a promising wide bandgap semiconductormaterial for high-temperature, high-power, and high-frequencydevice applications. However, there are still a number offactors that are limiting the device performance. Among them,one of the most important and critical factors is the formationof low resistivity Ohmic contacts and high-temperature stableSchottky diodes on silicon carbide.</p><p>In this thesis, different metals (TiW, Ti, TiC, Al, and Ni)and different deposition techniques (sputtering andevaporation) were suggested and investigated for this purpose.Both electrical and mat
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Zheng, Jing-Xuan, and 鄭景軒. "Study on Silica Coated Nano-Magnetite Particles." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/49744646507348769823.

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碩士<br>國立成功大學<br>機械工程學系碩博士班<br>91<br>The research is focused on the preparation and characterization of physically or chemically surface-modified magnetite (Fe3O4) nanoparticleswhich are expected with the benefit of a easy fabrication of functionalities, and in turn with multi-applications in many areas. Fulfilling the above goal, a strategy has developed on coating a layer of silica onto the magnetite nanopatricles, which are stabilize by the surface charge repulsion from the coated silica, and functionalities are introduced by the wildly available silane coupling agents. There are three port
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Book chapters on the topic "Silica nano-particles"

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Sharma, Rakesh K., Manavi Yadav, and Manoj B. Gawande. "Silica-Coated Magnetic Nano-Particles: Application in Catalysis." In ACS Symposium Series. American Chemical Society, 2016. http://dx.doi.org/10.1021/bk-2016-1238.ch001.

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Singh, L. P., S. K. Bhattacharyya, S. P. Shah, and U. Sharma. "Studies on Hydration of Tricalcium Silicate Incorporating Silica Nano-particles." In Nanotechnology in Construction. Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-17088-6_18.

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Adachi, Tadaharu, Markus Karamoy Umboh, Tadamasa Nemoto, Masahiro Higuchi, and Zoltan Major. "Mechanical Properties of Epoxy Resins Filled with Nano-Silica Particles." In Dynamics and Control of Advanced Structures and Machines. Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-43080-5_25.

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Kwon, Soon Chul, Tadaharu Adachi, Wakako Araki, and Akihiko Yamaji. "Mechanical Properties of Nano/Micro-Silica Particles Bidispersed Epoxy Composites." In The Mechanical Behavior of Materials X. Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/0-87849-440-5.1507.

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Na, Young Joo, Sang Joon Park, Ji Hyeon Kim, and Jong Sung Kim. "The Preparation of Fluorescent Nano Dye-Silica Particles by Sol-Gel Process." In Solid State Phenomena. Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/3-908451-31-0.651.

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Huang, Jingjing, Xiaohong Li, and Zhijun Zhang. "The Tribological Properties of Oil-Soluble Nano-Copper and Nano-Silica Particles as Additives of Lubricating Oils." In Advanced Tribology. Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-03653-8_303.

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Kitamura, Naoyuki, Kohei Fukumi, and Junji Nishii. "Organic Dye Doped Silica Glasses Produced from Silica Nano-Particles by Using High Pressure at Room Temperature." In Advances in Glass and Optical Materials II. John Wiley & Sons, Inc., 2011. http://dx.doi.org/10.1002/9781118144138.ch14.

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Cunha, Thyala A., Lívia B. Agostinho, and Eugênia F. Silva. "Application of Nano-silica Particles to Improve the Mechanical Properties of High Performance Concrete Containing Superabsorbent Polymers." In 3rd International Conference on the Application of Superabsorbent Polymers (SAP) and Other New Admixtures Towards Smart Concrete. Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-33342-3_23.

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Pattnaik, Amruta, Monika Tomar, Som Mondal, Vinay Gupta, and B. Prasad. "Enhancement in Power Conversion Efficiency of Multi-crystalline Silicon Solar Cell by ZnS Nano Particles with PMMA." In Springer Proceedings in Physics. Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-319-97604-4_61.

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Ansari, Mohammad Irshad, and Piyush Das. "IMPACT OF NANO SILICA POWDER AND SILICA FUME IN CHEMICAL AND PHYSICAL PROPERTY OF CONCRETE." In Futuristic Trends in Construction Materials & Civil Engineering Volume 3 Book 2. Iterative International Publishers, Selfypage Developers Pvt Ltd, 2024. http://dx.doi.org/10.58532/v3bice2p6ch1.

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The property of fresh and hardened concrete is different but after the adding some admixture the property of these material is enhance according to the property of admixture. Agricultural waste are also used in the building material. To reduced the cost of construction we are using industial waste in this experiment. Nano silica particles (NSP) and silica fumes is a waste material which occure from industries. One of the main property of cement is that when the cement particles is finner than the normal cement then the strength of material is more. In this experimental work we are using Nano s
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Conference papers on the topic "Silica nano-particles"

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Pessina, Daniele, Jorge Calderon de Anda, Claire Heffernan, et al. "Model-based approach to template-induced macromolecule crystallisation." In The 35th European Symposium on Computer Aided Process Engineering. PSE Press, 2025. https://doi.org/10.69997/sct.131246.

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Biomacromolecules have intricate crystallisation behaviour due to their size and many interactions in solution and can often only crystallise in narrow ranges of experimental conditions. High solute concentrations are needed for crystal nucleation and growth, exceeding those eluted upstream and therefore preventing the adoption of crystallisation in downstream separation steps. By promoting molecular aggregation and nucleation via a lowered energy barrier, heterogeneous surfaces or templates can relax the supersaturation requirements and widen the crystallisation operating space. Though templa
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Kumar, Deepak, Sadaf Shoukatali Chishti, Abhishek Rai, and Samarth Dilip Patwardhan. "Scale Inhibition Using nano-silica Particles." In SPE Middle East Health, Safety, Security, and Environment Conference and Exhibition. Society of Petroleum Engineers, 2012. http://dx.doi.org/10.2118/149321-ms.

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AL-Ibraheemi, Sattar, Fuqdan A. Al-Ibraheemi, and Maher Abdulfadhil Gatea. "Nonlinear Optical Properties of Gold-silica Nano-particles." In 2019 2nd International Conference on Engineering Technology and its Applications (IICETA). IEEE, 2019. http://dx.doi.org/10.1109/iiceta47481.2019.9012989.

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Fuji, Prof Masayoshi. "Synthesis and Applications of Nano-sized Hollow Silica Particles." In 5th Asian Particle Technology Symposium. Research Publishing Services, 2012. http://dx.doi.org/10.3850/978-981-07-2518-1_236.

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Suciu, Claudiu Valentin. "Experimental Investigations on the Nano-Damping Durability." In 2008 Second International Conference on Integration and Commercialization of Micro and Nanosystems. ASMEDC, 2008. http://dx.doi.org/10.1115/micronano2008-70018.

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Connected to the nano-technological development, solid-liquid interfaces have been used to dissipate surface energies, in systems where the solid is liquid-repellent. Such interfaces are able to store, release or transform the mechanical energy. For instance, some modified silicas and zeolites in association with water have been used to build efficient ecological dampers and springs. Regarding this attractive kind of storage and loss of energy, some practical aspects, such as the endurance limits need to be clarified, and measures to augment the nano-damping durability to values required by us
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Moon, Songbae, Pramod R. Watekar, Bok Hyeon Kim, and Won Taek Han. "Visible Wavelength Emission in the Silica Glass Fiber Doped with Silicon Nano-particles." In OFC/NFOEC 2007 - 2007 Conference on Optical Fiber Communication and the National Fiber Optic Engineers Conference. IEEE, 2007. http://dx.doi.org/10.1109/ofc.2007.4348884.

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Okoro, Franklin, Mary Frank-Okoro, and Emmauel Alor. "Investigation of the Effectiveness of SiO2 Nanoparticle Additive in Enhancing Water-Based Mud Properties and Performance to the Extent of HPHT Conditions." In SPE Nigeria Annual International Conference and Exhibition. SPE, 2022. http://dx.doi.org/10.2118/211940-ms.

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Abstract This study investigated the effectiveness of nano-particles, mainly silica, as an additive to water-based muds to the extent of HPHT conditions. Specifically, the study ascertained the impact of silica nano-particles in improving performance of water-based mud, the study also investigated the effect of nano-silica on mud density and also investigated the quality of silica nano-particles as a fluid loss agent and rheology modifier. The laboratory study was divided into four parts: viscosity determination, fluid loss test, sand content determination, and density determination. The exper
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Jimmy, Dorcas, and Michael Ifeanyi Ogba. "The Effect of Nano-Silica on the Properties of Water Based Mud Used in Drilling High Pressure High Temperature Wells." In SPE Nigeria Annual International Conference and Exhibition. SPE, 2022. http://dx.doi.org/10.2118/212007-ms.

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Abstract This study investigated the effectiveness of nano-particles, mainly silica, as an additive to water based muds to the extent of High Pressure, High Temperature (HPHT) conditions. Specifically, the study ascertained the impact of silica nano-particles in improving performance of water based mud, the study also investigated the effect of nano-silica on mud density and also investigated the quality of silica nano-particles as a fluid loss agent and rheology modifier. The laboratory study was divided into four parts: viscosity determination, fluid loss test, sand content determination, an
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Ragab, Adel M. Salem, and Ahmed E. Hannora. "An Experimental Investigation of Silica Nano Particles for Enhanced Oil Recovery Applications." In SPE North Africa Technical Conference and Exhibition. Society of Petroleum Engineers, 2015. http://dx.doi.org/10.2118/175829-ms.

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Imai, T., F. Sawa, T. Ozaki, et al. "Evaluation of insulation properties of epoxy resin with nano-scale silica particles." In Proceedings of 2005 International Symposium on Electrical Insulating Materials, 2005. (ISEIM 2005). IEEE, 2005. http://dx.doi.org/10.1109/iseim.2005.193387.

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