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Relevant bibliographies by topics / Yttrium oxide based coating / Dissertations / Theses

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Dissertations / Theses on the topic 'Yttrium oxide based coating'

Author: Grafiati

Published: 28 June 2021

Last updated: 29 July 2025

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1

Tirala, David. "Testování a hodnocení vlastností keramických jader pro technologii vytavitelného modelu." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2021. http://www.nusl.cz/ntk/nusl-445169.

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Production of top quality castings for applications in energy, aerospace and medical industries by the addition of ceramic cores to investment casting presents many metallurgical and technological problems. Ceramic cores applied in investment casting are subjects to many requirements in terms of their inertness to the casted alloy and at the same time to their final removal from the casting cavity in such a way that does not damage the casting. Both of these assumptions can be achieved by applying a thin layer of inert oxide ceramic coating to the surface of a ceramic core, made out of a chemi

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2

Lin, Xin. "Yttrium disilicate as environmental barrier coating for silicon nitride-based glow plug." University of British Columbia, 2017. http://hdl.handle.net/2429/64165.

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Silicon-based ceramics undergo severe degradation at temperatures above ~1000 ℃ in the presence of water vapor, which is inevitable in combustion environments. Therefore, Environmental Barrier Coatings (EBCs) are necessary for the protection of Si₃N₄-based ceramic components in the harsh combustion environments. Rare earth silicates, which have relatively low thermal expansion coefficients, good chemical stability at high temperatures and low recession rates in the presence of water vapor, are promising candidate materials for such EBC application. This study was related to the application of

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3

DE, MIRANDA AURISTELA CARLA. "Design, production and characterization of glass-ceramic based sealants for solid oxide fuel cells applications." Doctoral thesis, Politecnico di Torino, 2015. http://hdl.handle.net/11583/2591557.

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Planar solid oxide fuel cells (SOFCs) are capable of achieving higher power density than tubular SOFC, but hermetic seals are required to prevent mixing of the fuel and oxidant, It is still a challenge to develop sealing materials that retain desirable physical properties, are chemically compatible with other fuel cell components at high temperature (e.g. 800 °C) in a wide range of oxygen partial pressure, and remain operational over thousands of hours. In most planar SOFCs stacks designs, the interconnect is sealed to the cell components. The seal between the metal interconnect and the cerami

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4

Dostál, Vladimír. "Využití oxidu yttria pro vytváření antireflexních vrstev solárních článků." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2010. http://www.nusl.cz/ntk/nusl-218813.

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This work deals with deposition of yttrium oxide layers on silicon substrate (P – type) by using magnetron and reactive magnetron sputtering. Experiments which were made are further described. After that, work is focused on evaluation of deposited layers by using FTIR measurement technique and spectrophotometry. At the end of the work results of experiments are discussed also with the future progress.

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5

JAVED, HASSAN. "Design, synthesis and characterization of glass-ceramic and ceramic based materials for solid oxide electrolysis cell (SOEC) applications." Doctoral thesis, Politecnico di Torino, 2019. http://hdl.handle.net/11583/2743336.

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6

Mao, Fang. "Synthesis, Characterization, and Evaluation of Ag-based Electrical Contact Materials." Doctoral thesis, Uppsala universitet, Oorganisk kemi, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-320235.

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Ag is a widely used electrical contact material due to its excellent electrical properties. The problems with Ag are that it is soft and has poor tribological properties (high friction and wear in Ag/Ag sliding contacts). For smart grid applications, friction and wear became increasingly important issues to be improved, due to much higher sliding frequency in the harsh operation environment. The aim of this thesis is to explore several different concepts to improve the properties of Ag electrical contacts for smart grid applications. Bulk Ag-X (X=Al, Sn In) alloys were synthesized by melting o

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7

Blandenet, Olivier. "Elaboration de revetements, dont WC-Co, par canon à détonation." Grenoble INPG, 1997. http://www.theses.fr/1997INPG0124.

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Lors de cette etude, nous avons mis au point et optimise les conditions d'elaboration de revetements ceramique oxyde et cermet a l'aide d'un procede de projection par canon a detonation : le korund. Les mesures experimentales de pression et de celerite de l'onde de detonation nous permettent de conclure a la validite de la representation de la detonation se propageant a l'interieur du fut du korund et de l'ecoulement des produits de detonation en aval de cette onde, respectivement a l'aide des modeles chapman-jouguet (c. J. ) et taylor zeldovich (t. Z. ). L'optimisation de la composition, de l

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8

Fang, Lei. "Exploring spin in novel materials and systems." The Ohio State University, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=osu1299611695.

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9

Pousaneh, Elaheh. "Synthesis and Characterization of Metal Complexes for Thin Film Formation via Spin-Coating or Chemical Vapor Deposition." 2019. https://monarch.qucosa.de/id/qucosa%3A72463.

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The present thesis describes the synthesis and characterization of magnesium, copper, and iron complexes and their application in the MOCVD (Metal-Organic Chemical Vapor Deposition) process, as well as the synthesis and characterization of yttrium and gadolinium complexes and their use as spin-coating precursors for metal oxide thin layer formation. The objective of this scientific work is the development of the family of bis(β-ketoiminato) magnesium(II) complexes and a series of heteroleptic β-ketoiminato copper(II) precursors for the formation of magnesium oxide and copper/copper oxide layer

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10

Salehizadeh, Seyed Ali. "Encapsulation of iron oxide-based nanoparticles in silica for biomedical applications." Doctoral thesis, 2019. http://hdl.handle.net/10773/27748.

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Over last decades, a great attention has been devoted to iron oxide-based nanoparticles coated by dielectric organic or inorganic materials for the potential contributions in biomedical applications and microwave absorbers industry. The present Ph.D. study focuses on the fabrication of iron-based oxide nanoparticles and coating the particles within the silica matrix in the form of a core-shell structure exhibiting interesting magnetic and electrical properties for application in the biomedical and microwave technology areas. The combined study of electrical and magnetic properties of the sili

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11

Zhang, Yi. "Atomistic and finite element modeling of zirconia for thermal barrier coating applications." Thesis, 2014. http://hdl.handle.net/1805/6191.

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Indiana University-Purdue University Indianapolis (IUPUI)<br>Zirconia (ZrO2) is an important ceramic material with a broad range of applications. Due to its high melting temperature, low thermal conductivity, and high-temperature stability, zirconia based ceramics have been widely used for thermal barrier coatings (TBCs). When TBC is exposed to thermal cycling during real applications, the TBC may fail due to several mechanisms: (1) phase transformation into yttrium-rich and yttrium-depleted regions, When the yttrium-rich region produces pure zirconia domains that transform between monoclinic

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12

Lepule, Masego Liberty. "Tribo-corrosion characteristics of laser deposited titanium-based smart coatings." 2013. http://encore.tut.ac.za/iii/cpro/DigitalItemViewPage.external?sp=1001018.

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M. Tech. Department of Chemical and Metallurgical Engineering.<br>Aims to understand and study the tribology and tribocorrosion behaviour of the adaptive titanium-nickel-zirconia composite coatings deposited on AISI 316 stainless steel using laser surface deposition technique under various laser processing speeds. The research aim is meant to be achieved through the following objectives: 1. Determine appropriate procedure for laser feedstock deposition ; 2. Investigate tribological performance of laser composites under various loads ; 3. Evaluate the corrosion of the laser composites coatings.

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13

Rajachidambaram, Meena Suhanya. "Investigation of oxide semiconductor based thin films : deposition, characterization, functionalization, and electronic applications." Thesis, 2011. http://hdl.handle.net/1957/26524.

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Nanostructured ZnO films were obtained via thermal oxidation of thin films formed with metallic Zn-nanoparticle dispersions. Commercial zinc nanoparticles used for this work were characterized by microscopic and thermal analysis methods to analyze the Zn-ZnO core shell structure, surface morphology and oxidation characteristics. These dispersions were spin-coated on SiO₂/Si substrates and then annealed in air between 100 and 600 °C. Significant nanostructural changes were observed for the resulting films, particularly those from larger Zn nanoparticles. These nanostructures, including nanoneed

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14

Mukherjee, Bratindranath. "Synthesis And Structural Characterization Of TiO2-Based Hybrid Nanostructures For Photovoltaic Applications." Thesis, 2009. https://etd.iisc.ac.in/handle/2005/2018.

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Increased demand of power, limited fuel resources and environmental concerns have recently prompted a huge thrust on research areas of alternative energy and photovoltaics have been hailed as energy source for future. Particularly, third generation solar cell configurations like dye-sensitized solar cells and quantum dot Schottky barrier solar cells have drawn more attention because of their ease of processability, cheap cost with decent performance, low payback time and portability. Quantum dots are very attractive materials as sensitizers because of their size dependent bandgap tunability, i

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15

Mukherjee, Bratindranath. "Synthesis And Structural Characterization Of TiO2-Based Hybrid Nanostructures For Photovoltaic Applications." Thesis, 2009. http://hdl.handle.net/2005/2018.

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Increased demand of power, limited fuel resources and environmental concerns have recently prompted a huge thrust on research areas of alternative energy and photovoltaics have been hailed as energy source for future. Particularly, third generation solar cell configurations like dye-sensitized solar cells and quantum dot Schottky barrier solar cells have drawn more attention because of their ease of processability, cheap cost with decent performance, low payback time and portability. Quantum dots are very attractive materials as sensitizers because of their size dependent bandgap tunability, i

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