Academic literature on the topic 'Zirconium oxide'

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Journal articles on the topic "Zirconium oxide"

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Fedorov, Pavel P., and Evgeniya G. Yarotskaya. "Zirconium dioxide. Review." Kondensirovannye sredy i mezhfaznye granitsy = Condensed Matter and Interphases 23, no. 2 (June 4, 2021): 169–87. http://dx.doi.org/10.17308/kcmf.2021.23/3427.

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A review of zirconium dioxide or zirconia ZrO2 is presented. The finding of zirconium compounds in nature, the physical and chemical properties of ZrO2 are given, the polymorphism of zirconium oxide, and the phase diagrams of systems with its participation are considered. The areas of application of zirconia compounds are highlighted: automotive industry, electronics industry, energy and industrial ecology, equipment manufacturing and mechanical engineering the production of zirconium-based refractories, ceramics, enamels, glass, superhard materials, applications in medicine, nuclear energetics, and many others areas of human activity. Cubic modification of zirconium dioxide, stabilized by oxides of rare earth elements,is a jewelry stone (fianite). Partially stabilized zirconium dioxide is a versatile structural material with very high resistance to crack propagation. Solid solutions of REE oxides, especially scandium, have a high oxygen conductivity, which is used in sensors for measuring the partial pressure of oxygen and in fuel cells. Attention is paid to heat-resistant oxide ceramic materials with low thermal conductivity used in the quality of heat-resistant coatings. Considerable attention was paid to the second most important mineral of zirconia - baddeleyite (ZrO2). Baddeleyite is widely used in the production of refractory materials. It is mined for the production of metallic zirconium. The achievements of Soviet and Russian scientists in thedevelopment of technologies for the production of fianite and artificial baddeleyite are presented.
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Arora, Avnish Kumar, and Pankaj Kumar. "Prebiotic studies on the interaction of zirconia nanoparticles and ribose nucleotides and their role in chemical evolution." International Journal of Astrobiology 20, no. 2 (February 26, 2021): 142–49. http://dx.doi.org/10.1017/s1473550421000033.

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AbstractStudies on the interaction of biomolecules with inorganic compounds, mainly mineral surfaces, are of great concern in identifying their role in chemical evolution and origins of life. Metal oxides are the major constituents of earth and earth-like planets. Hence, studies on the interaction of biomolecules with these minerals are the point of concern for the study of the emergence of life on different planets. Zirconium oxide is one of the metal oxides present in earth's crust as it is a part of several types of rocks found in sandy areas such as beaches and riverbeds, e.g. pebbles of baddeleyite. Different metal oxides have been studied for their role in chemical evolution but no studies have been reported about the role of zirconium oxide in chemical evolution and origins of life. Therefore, studies were carried out on the interaction of ribonucleic acid constituents, 5′-CMP (cytidine monophosphate), 5′-UMP (uridine monophosphate), 5′-GMP (guanosine monophosphate) and 5′-AMP (adenosine monophosphate), with zirconium oxide. Synthesized zirconium oxide particles were characterized by using vibrating sample magnetometer, X-Ray Diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscopy. Zirconia particles were in the nanometre range, from 14 to 27 nm. The interaction of zirconium oxide with ribonucleic acid constituents was performed in the concentration range of 5 × 10−5–300 × 10−5 M. Interaction studies were carried out in three mediums; acidic (pH 4.0), neutral (pH 7.0) and basic (pH 9.0). At neutral pH, maximum interaction was observed. The interaction of zirconium oxide with 5′-UMP was 49.45% and with 5′-CMP 67.98%, while with others it was in between. Interaction studies were Langmurian in nature. Xm and KL values were calculated. Infrared spectral studies of ribonucleotides, metal oxide and ribonucleotide–metal oxide adducts were carried out to find out the interactive sites. It was observed that the nitrogen base and phosphate moiety of ribonucleotides interact with the positive charge surface of metal oxide. SEM was also carried out to study the adsorption. The results of the present study favour the important role of zirconium oxide in concentrating the organic molecules from their dilute aqueous solutions in primeval seas.
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Szawioła-Kirejczyk, Magdalena, Karolina Chmura, Krzysztof Gronkiewicz, Andrzej Gala, Jolanta E. Loster, and Wojciech Ryniewicz. "Adhesive Cementation of Zirconia Based Ceramics-Surface Modification Methods Literature Review." Coatings 12, no. 8 (July 28, 2022): 1067. http://dx.doi.org/10.3390/coatings12081067.

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Introduction: The conditioning procedures for glass-based ceramic restorations before adhesive cementation are generally recognized. In the case of polycrystalline ceramics, which include zirconium oxide, there is still no standardized protocol. The aim of this work was to present conditioning methods of the cementation surface of zirconium oxide fixed dentures. The new generation high translucency zirconia has been also considered. Material and method: The following keywords for the PUBMED and EMBASE databases were used: zirconium oxide, zirconium oxide with increased translucency, bond strength, bending strength, surface treatment. The inclusion criteria were original papers in English published between 2015–2021. Results: Out of 1537 publications, 53 articles were selected for the study, covering methods of conditioning zirconium ceramics, including new materials with increased translucency. These procedures were divided into 5 main groups. Summary: Due to the widespread use of zirconia ceramics and the introduction of new zirconia-based materials, the use of a predictable and standardized cementation protocol is one of the most important factors contributing to the long-term clinical success of prosthetic restorations. Therefore, the research showed differences in the properties of the covered materials after conditioning. It suggests the need to create separate conditioning protocols for highly translucent and traditional zirconia.
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WENDEL, H., H. HOLZSCHUH, H. SUHR, G. ERKER, S. DEHNICKE, and M. MENA. "THIN ZIRCONIUM DIOXIDE AND YTTRIUM OXIDE-STABILIZED ZIRCONIUM DIOXIDE FILMS PREPARED BY PLASMA-CVD." Modern Physics Letters B 04, no. 19 (October 20, 1990): 1215–25. http://dx.doi.org/10.1142/s0217984990001537.

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Thin zirconia (zirconium dioxide) films are deposited by PECVD using as precursors organometallic compounds, metal alkoxides, and metal β-diketonates. The properties of the films depend on the substrate temperature, power density and the nature and partial pressure of the precursor. Thin films of zirconia stabilized with yttria (yttrium oxide) are formed at relatively low deposition temperatures (500°C) using the β-diketones of zirconium and yttrium.
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Al-Hazmi, Mohammed H., YongMan Choi, and Allen W. Apblett. "Preparation of Zirconium Oxide Powder Using Zirconium Carboxylate Precursors." Advances in Physical Chemistry 2014 (December 31, 2014): 1–8. http://dx.doi.org/10.1155/2014/429751.

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Zirconia was prepared at low temperatures (<450°C) using single several source precursors based on zirconium carboxylates where the R groups were systematically varied. The combination of density functional theory (DFT) calculations and extensive characterization of the precursors (i.e., X-ray diffraction, thermal gravimetric analysis, infrared spectroscopy, and scanning electron microscopy) indicated that the carboxylic acid complexes may link the zirconium metal with a cis bidentate configuration. Periodic DFT calculations were performed to examine the interaction between monoclinic ZrO2 and propanoic acid. Dissociative adsorption takes place through the cis bidentate structure with an adsorption energy of −1.43 eV. Calculated vibrational frequencies using the optimized structure are in good agreement with experimental findings.
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Stankovic, Jovan, Slobodan Milonjic, and Slavica Zec. "The influence of chemical and thermal treatment on the point of zero charge of hydrous zirconium oxide." Journal of the Serbian Chemical Society 78, no. 7 (2013): 987–95. http://dx.doi.org/10.2298/jsc121010149s.

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Two zirconia samples were prepared by precipitation from aqueous zirconium oxychloride and zirconil sulphate solutions with potassium hydroxide. The prepared zirconia samples were amorphous. The pHpzc values of zirconia samples, determined from NaCl and NaNO3 solutions, were 6.6 ? 0.1 and 6.9 ? 0.1, respectively. After prolonged hydration of zirconia in doubly distilled water, pHpzc decreased to 4.7 ? 0.3. Crystallization into tetragonal (metastable) + monoclinic zirconia appeared at 691 K. Above 873 K, tetragonal metastable phase changes to monoclinic one. It was shown that crystallite sizes of zirconia treated at 673 - 1273 K increased from 9.5 nm to 40.5 nm, respectively. The increase in temperature from 385 K to 1070 K increased the pHpzc of zirconia samples from 6.6 to 9.0, respectively.
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Hösel, T., Claas Müller, and Holger Reinecke. "Analysis of Surface Reaction Mechanisms on Electrically Non-Conductive Zirconia, Occurring within the Spark Erosion Process Chain." Key Engineering Materials 504-506 (February 2012): 1171–76. http://dx.doi.org/10.4028/www.scientific.net/kem.504-506.1171.

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Electrically insulating high performance ceramics like zirconia are increasingly used for high technological applications due to their extraordinary properties. Meanwhile even the spark erosion process can be used to structure non-conductive ceramics by using an assisting electrode (AE). This conductive AE is placed on top of the work piece to enable the process. The electrical contact is sustained during the process by carbonic residua of cracked oil used as a dielectric. For an enhanced understanding of the removal mechanisms during the spark erosion process of such non-conductive ceramics, we analysed the surface of ceramic samples during the entire spark erosion process chain. In our investigation a zirconium oxide with yttrium oxide stabilisation was chosen. For this purpose X-ray diffraction (XRD) and scanning electron microscopy (SEM) analysis was performed. The XRD results showed that the zirconium oxide reacts under the presence of carbonic residua during processing into zirconium carbide. This material supports sustaining the conductivity additionally, as it is conductive itself. In a subsequent thermal cleaning step with oxide atmosphere (T = 750°C), remaining carbonic residua are oxidised and thus removed. The XRD measurements after cleaning showed that the zirconium carbide was no longer detectable. Instead a monoclinic zirconium phase was found. This shows that a reverse reaction of zirconium carbide into zirconium oxide took place. To prevent the formation of a non-stabilised monoclinic phase, the oven process was adapted to higher temperatures of 900°C with higher heating and active cooling rates of up to 10 K/s. This adjustment shows that the monoclinic phase can be supressed and the reverse reaction leads to a tetragonal zirconium oxide like the bulk material.
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Nikishina, E. E., E. N. Lebedeva, and D. V. Drobot. "ZIRCONIUM AND HAFNIUM DIOXIDES DOPED BY OXIDES OF YTTRIUM, SCANDIUM AND ERBIUM: NEW METHODS OF SYNTHESIS AND PROPERTIES." Fine Chemical Technologies 13, no. 5 (October 28, 2018): 30–37. http://dx.doi.org/10.32362/2410-6593-2018-13-5-30-37.

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The results of elaborating a method for the synthesis of zirconia and hafnia doped by rare earths (yttrium, erbium and scandium) by using low-hydrated hydroxides of zirconium and hafnium as precursors are reported. The low-hydrated zirconium and hafnium hydroxides were prepared using the heterophase reaction. The physicochemical properties (including sorption properties) of low-hydrated zirconium and hafnium hydroxides ZrxHf1-x(OH)3÷1O0.5÷1.5·0.9÷2.9H2Owere studied. The scheme of thermal decomposition of low-hydrated hydroxides in air was determined. The sorption properties of the low-hydrated hafnium hydroxide are less pronounced owing to the lower amount of sorption centers, in this case, hydroxo and aqua groups. The sequence of stages of thermal decomposition of rare earth acetates was elucidated. Single-phase zirconia and hafnia doped by rare earths (yttrium, erbium and scandium) were obtained. The parameters of the elementary lattice were calculated for each phase. It was established that the stabilization of zirconium dioxide with yttria leads to the formation of interstitial solid solutions based on tetragonal zirconia (in the case of the composition Y2O3×4ZrO2 - cubic modification), with erbium oxide - interstitial solid solutions based on cubic zirconia; with scandium oxide - solid solutions based on tetragonal zirconia. The article presents the results of measuring electrical conductivity.
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Mityushova, Yulia A., Sergey A. Krasikov, Alexey A. Markov, Elmira I. Denisova, and Vadim V. Kartashov. "Effect of a stabilizing additive on the electroconductivity of ZrO2-based ceramics." Butlerov Communications 58, no. 5 (May 31, 2019): 105–9. http://dx.doi.org/10.37952/roi-jbc-01/19-58-5-105.

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The creation of solid oxide fuel cells (SOFC) is one of the promising solutions to the problem of electricity supply. It is advantageous to use stabilized zirconium dioxide (ZrO2) as solid electrolytes in SOFC. In this paper, zirconium dioxide powders with additives of yttrium and scandium oxides (ZrO2–Y2O3, ZrO2–Sc2O3 and ZrO2–Y2O3–Sc2O3) were synthesized. Ceramic samples were obtained from the powders to study the effect of stabilizing additives on the conductive properties of zirconium dioxide. The addition of yttrium oxide Y2O3 in an amount of 8 mol. % contributed to the formation of a solid cubic solution of zirconium dioxide, and scandium oxide Sc2O3 increased the strength and conductive characteristics of the material. The definition of the conductive characteristics was carried out by impedance spectroscopy. Platinum paste was preliminarily applied by printing, which, when measured, ensured contact with the entire surface of the sample under study. It is shown that the addition of yttrium oxide contributes to the formation of a solid cubic solution of zirconium dioxide, and scandium oxide increases the strength (microhardness) and conductive characteristics of the material. Of interest is the simultaneous alloying of zirconium dioxide with scandium and yttrium oxides. The results of determining the properties of ceramic samples showed that the increase in electrical conductivity is more influenced by the addition of Sc2O3 compared with the addition of Y2O3. Stabilization without yttrium oxide leads to unstable conductivity values over time. A sample of ZrO2 – 1 mol%. – Y2O3 – 8 % mol. Sc2O3 has the potential to be used as an electrolyte in solid oxide fuel cells.
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Lin, Cui Hua, Xiong Fei Zhang, Yang Hou, Ya Li Wang, and Gui Wang. "Synthesis of Calcium Oxide Stabilized Cubic Zirconia Powders by Electrochemical Method." Advanced Materials Research 233-235 (May 2011): 2403–8. http://dx.doi.org/10.4028/www.scientific.net/amr.233-235.2403.

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Calcium oxide stabilized cubic zirconia powders were synthesized with electrochemical method using analytical reagent zirconium oxychloride and calcium oxide as the raw materials. From XRD analysis, zirconia powders doped calcium oxide are mainly being as cubic phase under the temperature lower than 1100°C. While the zirconia powders which did not doped calcium oxide were transformed from cubic phase to monoclinic phase when the powders were sintered at 750°C. The calcium oxide used as dopant in zirconia has two advantages, the first is that it can stabilize the cubic zircnnia, the second is that it can restrain the zirconia powders’ growing up.
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Dissertations / Theses on the topic "Zirconium oxide"

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Zhe, Xiaoli. "Novel zirconium oxide-based ceramic composites." Thesis, University of Strathclyde, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.366774.

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Meidell, J. "Control of microstructure in sintered zirconium oxide." Thesis, Staffordshire University, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.237830.

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Mangin, Stephan P. 1973. "Microstructural study of zirconium oxide grown on a zirconium alloy substrate for orthopaedic applications." Thesis, Massachusetts Institute of Technology, 1998. http://hdl.handle.net/1721.1/50372.

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Vemuri, Venkata Rama Sesha Ravi Kumar. "Fabrication and characterization of zirconium oxide thin films." To access this resource online via ProQuest Dissertations and Theses @ UTEP, 2009. http://0-proquest.umi.com.lib.utep.edu/login?COPT=REJTPTU0YmImSU5UPTAmVkVSPTI=&clientId=2515.

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McClellan, Kenneth James. "Structure/property relations in yttrium oxide-stabilized cubic zirconium oxide single crystals." Case Western Reserve University School of Graduate Studies / OhioLINK, 1994. http://rave.ohiolink.edu/etdc/view?acc_num=case1061395556.

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Cruz, César Roberto [UNESP]. "Desempenho de sondas Lambda no monitoramento de motores do ciclo Otto alimentados por etanol e GNV." Universidade Estadual Paulista (UNESP), 2015. http://hdl.handle.net/11449/132500.

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Made available in DSpace on 2016-01-13T13:26:53Z (GMT). No. of bitstreams: 0 Previous issue date: 2015-07-07. Added 1 bitstream(s) on 2016-01-13T13:32:12Z : No. of bitstreams: 1 000854863.pdf: 5368324 bytes, checksum: f60f5de47f46c51ce3e51ec3e6e81da4 (MD5)
Com aumento do número de veículos automotores em circulação, a quantidade de poluentes lançados no nosso planeta é muito significativa, sendo um risco real ao nosso meio ambiente. Vários avanços tecnológicos têm sido apreentados nos últimos anos, objetivando a redução destas emissões. As cerâmicas têm desempenhado um papel primordial neste cenário. Dentre estas, encontra-se o sensor de oxigênio que utiliza a zircônia (ZrO2) como eletrólito sólido, componente do sistema de gerencialmento eletrônico do motor do ciclo Otto, e elemento primordial na estratégia de reduzir as emissões e o consumo de combustível. Neste trabalho analisou-se o desempenho de quatro sensores de marcas líderes no mercado, com países de origem diferentes, originalmente desenvolvidos para operar com gasolina pura se comportam com combustível de uso alternativo, com composição química e fases distintas, Etanol (líquida) e GNV (gasosa). Instalados em um motor do ciclo Otto de 4 tempos, dotado de sistema de gerencialmento eletrônico multicombustível (Tetrafuel) original de fábrica, funcionando de forma autônoma ao veículo, operando em duas rotações predefinidas. Foram coletados e registrados os seguintes dados operacionais: sinal elétrico, tempo de resposta, temperatura de operação, e emissões de gases. Os valores obtidos nas etapas estipuladas foram tabulados e posteriormente analisados. Quando utilizado o Etanol como combustível, as tensões médias nas duas rotações foram menores que as observadas utilizando-se o GNV, a temperatura na região do sensor também se apresentou superior para o Etanol. O tempo médio de resposta para o Etanol foi superior ao GNV. Analisando as emissões geradas, concluímos que as mesmas estão de acordo com o preconizado na legislação vigente, indicando que o sistema de gerenciamento eletrônico do motor e consequentemente os sensores de oxigênio avaliados, cumprem plenamente e de forma adequada...
With the increasing number of motor vehicles in circulation, the amount of pollutantos released in the atmospheric air is very significant, being a real disk to our planet. People concerned about the consequences resulting from his problem have charged effective actions in order to minimize the impact of polluent generated and the preservaton of the life quality on our planet. Significant technological advances have been made in recent years, both in the forms of propulsion, when on reducing emissions by engines. The development and adoption of new materials, both in construction, or in the control of the several systems, is one of the bases of this major development. Among these materials, the ceramics have played a very important role in this scene, whose applications are enabling the achievement of the proposed objectives. This work focuses primarilly about the oxygen sensor using zirconia (ZrO2) as basic element. Also known as lambda sensor, it is used in automobiles to control along with the electronic management system of the engine, of air-fuel ratio, in orderto reduce the emissions and the fuel comsumption in internal combustion engines of Otto and Diesel cycles. It is installed in the exhaust gas system and aims to measure the residual oxygen content in gases produced by the engine. In this work we analyzed the performance of these sensors in measuring the concentration of residual oxygen content in the exhaust gases when installed on an Otto cycle engine, 4 stroke, endowed with electronic multi fuel management system (Tetrafuel), installed independently to the vehicle on a test bench, operating distinctly with liquid fuel (ethanol) and gas (CNG), in two predefined speeds. In this work, we will present is composition, construction, operating principles and performance in a real operating situation, of four sensors of different manufacturers allowing the understanding of its interaction with the electronic management system and the...
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Abdoulmoumine, Nourredine. "Sulfate and Hydroxide Supported on Zirconium Oxide Catalysts for Biodiesel Production." Thesis, Virginia Tech, 2010. http://hdl.handle.net/10919/33873.

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Biodiesel is currently produced by homogeneous catalysis. More recently however, heterogeneous catalysis is being considered as a cheaper alternative to the homogeneous process. In this research project, heterogeneous catalysts of zirconium oxide were produced by impregnation. Zirconium oxide impregnation with sulfuric acid produced acidic solid catalysts. It was determined that impregnation and calcination at 550oC (SO4/ZrO2-550oC) produced the best catalyst for palmitic acid esterification with 10 wt % as the optimum concentration in esterification of palmitic acid. SO4/ZrO2-550oC was successfully recycled for eight consecutive runs before permanent deactivation. Its sulfur content was 1.04 wt % using SEM-EDS and 2.05 wt % using XPS for characterization. BET surface area was 90.89 m2/g. The reaction mechanism over Brønsted acid (SO4/ZrO2-550oC) and Lewis acid (Al2O3) catalysts obeyed Eley-Rideal kinetics with palmitic acid and methanol adsorbed on the active site respectively. Zirconium oxide was also impregnated with sodium hydroxide to produce basic catalysts. The best catalyst was produced when zirconium oxide was impregnated with 1.5 M NaOH and calcined at 600oC. Soybean oil was completely converted to biodiesel with 10 wt % catalyst and 1:6 oil to methanol. A mixture of the base catalyst with 30 wt % SO4/ZrO2-550oC effectively converted soybean oil containing 5% oleic acid indicating that this mixture could be used for waste oils. The reaction was first order with respect to triglyceride and second order with respect to methanol. The activation energy was 49.35 kJ/mol and the reaction mechanism obeyed Langmuir-Hinshelwood kinetics.
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Bowen, Andrew. "Anodisation and study of oxide films formed on zirconium." Thesis, University of Nottingham, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.328407.

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Tewg, Jun-Yen. "Zirconium-doped tantalum oxide high-k gate dielectric films." Diss., Texas A&M University, 2004. http://hdl.handle.net/1969.1/1346.

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A new high-k dielectric material, i.e., zirconium-doped tantalum oxide (Zr-doped TaOx), in the form of a sputter-deposited thin film with a thickness range of 5-100 nm, has been studied. Important applications of this new dielectric material include the gate dielectric layer for the next generation metal-oxide-semiconductor field effect transistor (MOSFET). Due to the aggressive device scaling in ultra-large-scale integrated circuitry (ULSI), the ultra-thin conventional gate oxide (SiO2) is unacceptable for many practical reasons. By replacing the SiO2 layer with a high dielectric constant material (high-k), many of the problems can be solved. In this study, a novel high-k dielectric thin film, i.e., TaOx doped with Zr, was deposited and studied. The film’s electrical, chemical, and structural properties were investigated experimentally. The Zr dopant concentration and the thermal treatment condition were studied with respect to gas composition, pressure, temperature, and annealing time. Interface layer formation and properties were studied with or without an inserted thin tantalum nitride (TaNx) layer. The gate electrode material influence on the dielectric properties was also investigated. Four types of gate materials, i.e., aluminum (Al), molybdenum (Mo), molybdenum nitride (MoN), and tungsten nitride (WN), were used in this study. The films were analyzed with ESCA, XRD, SIMS, and TEM. Films were made into MOS capacitors and characterized using I-V and C-V curves. Many promising results were obtained using this kind of high-k film. It is potentially applicable to future MOS devices.
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Muratore, Francesca. "Growth of porous anodic films on zirconium and zirconium alloys in glycerol/fluoride electrolytes." Thesis, University of Manchester, 2011. https://www.research.manchester.ac.uk/portal/en/theses/growth-of-porous-anodic-films-on-zirconium-and-zirconium-alloys-in-glycerolfluoride-electrolytes(ce98e6f6-e743-47b2-b1c4-7b0fd6797003).html.

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Anodic films have been produced on zirconium and zirconium alloys potentiostatically (at either 20 or 40 V) in 0.35 M ammonium fluoride in glycerol, with interest in the addition of small amounts of water (up to 5 vol.%) to the electrolyte on their growth, morphologies and compositions. Scanning and transmission electron microscopies have been employed to analyse morphologies of the films, which appeared to be porous under all the investigated conditions.Rutherford backscattering spectroscopy and nuclear reaction analysis, used as techniques to investigate film compositions, disclosed the presence of zirconium, oxygen, fluorine, carbon and nitrogen in the films. The contents of fluorine and oxygen in the films were found to increase and decrease respectively by decreasing the amount of water added to the electrolyte from 5 to 0 vol.%. Moreover, the content of fluorine increased by decreasing the applied formation voltage, from 40 to 20 V, for films formed in electrolytes containing similar amounts of added water.In order to get information on the distribution of the species in the films, cross-sections of selected specimens were produced by focused ion beam and analysed by analytical transmission electron microscopy. Oxide-rich nanotubes were revealed embedded in a fluoride-rich matrix, suggesting that the mechanism of growth of the anodic films is governed by different migration rates of the anionic species in the film base, with F- ions, being the fastest anions. The relative amounts of the oxide-rich and fluoride-rich materials were related to the composition of the electrolyte, with the fluoride regions being less extensive and the oxide-rich nanotubes being thicker-walled by adding small amounts of water. Moreover, nanotubes are constituted of two shells (an outer one surrounding the pores and an inner one located between the outer shell and the matrix), suggesting differences in the composition in these two regions, presumed to be due to the incorporation of carbon species, being the slowest migrating species, in the outer shell. The fluoride-rich matrix chemically dissolved following 1 h immersion of the specimens in the formation electrolytes, promoting the transition from porous to nanotubular morphologies. Ageing of the specimens in deionized water for similar times did not significantly influence the morphologies and compositions of the anodic films.
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Books on the topic "Zirconium oxide"

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R, Stevens. Zirconia and zirconia ceramics. 2nd ed. Manchester, U.K: Magnesium Elektron Ltd, 1986.

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Zirconia '88--Advances in Zirconia Science and Technology (1988 Bologna, Italy). Zirconia '88: Advances in zirconia science and technology : [proceedings]. London: Elsevier, 1989.

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International Conference on the Science and Technology of Zirconia (3rd 1986 Tokyo, Japan). Science and technology of zirconia III. Westerville, Ohio: American Ceramic Society, 1988.

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International Conference on the Science and Technology of Zirconia (3rd 1986 Tokyo, Japan). Science and technology of zirconia III. Westerville, Ohio: American Ceramic Society, 1988.

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Zirconia, '88-Advances in Zirconia Science and Technology (1988 Bologna Italy). Zirconia '88--Advances in Zirconia Science and Technology: Proceedings of the international conference Zirconia '88--Advances in Zirconia Science and Technology held in Bologna, Italy, 16-17 December 1988, organized by by the Italian Ceramics Center of Bologna with the sponsorship of ENEA and Agip. London: Elsevier Applied Science, 1989.

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International, Ceramic Conference (1992 Melbourne Vic ). Ceramics, adding the value: AUSTCERAM 92 : proceedings of the International Ceramic Conference, Australia 1992. East Melbourne: CSIRO Australia, 1992.

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Electrochemistry of zirconia gas sensors. Boca Raton, FL: CRC Press, 2008.

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Smith, Michael Richard. Studies of skeletal hydrocarbon reactions on platinum/zirconia based superacid catalysts. Dublin: University College Dublin, 1996.

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Nakhate, S. G. Supersonic pulsed free-jet of atoms and molecules of refractory metals: Laser induced fluorescence spectroscopic studies on zirconium atoms and zirconium oxide molecules. Mumbai: Bhabha Atomic Research Centre, 2004.

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Iwaszko, Józef. Kształtowanie struktury i składu fazowego przetapianych powłok tlenkowych ZrO2 i Al2O3. Częstochowa: Wydawn. Politechniki Częstochowskiej, 2008.

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Book chapters on the topic "Zirconium oxide"

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Gooch, Jan W. "Zirconium Oxide." In Encyclopedic Dictionary of Polymers, 825. New York, NY: Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_13016.

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Arnold, Bożena. "Zirconium Oxide Versus Aluminium Oxide." In Zircon, Zirconium, Zirconia - Similar Names, Different Materials, 67–71. Berlin, Heidelberg: Springer Berlin Heidelberg, 2022. http://dx.doi.org/10.1007/978-3-662-64269-6_15.

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Arnold, Bożena. "Natural Zirconium Oxide." In Zircon, Zirconium, Zirconia - Similar Names, Different Materials, 45–46. Berlin, Heidelberg: Springer Berlin Heidelberg, 2022. http://dx.doi.org/10.1007/978-3-662-64269-6_11.

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Arnold, Bożena. "Zirconium Oxide Materials." In Zircon, Zirconium, Zirconia - Similar Names, Different Materials, 59–66. Berlin, Heidelberg: Springer Berlin Heidelberg, 2022. http://dx.doi.org/10.1007/978-3-662-64269-6_14.

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Arnold, Bożena. "Artificial Zirconium Oxide." In Zircon, Zirconium, Zirconia - Similar Names, Different Materials, 47–51. Berlin, Heidelberg: Springer Berlin Heidelberg, 2022. http://dx.doi.org/10.1007/978-3-662-64269-6_12.

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Arnold, Bożena. "Zirconium Oxide in Technology." In Zircon, Zirconium, Zirconia - Similar Names, Different Materials, 75–82. Berlin, Heidelberg: Springer Berlin Heidelberg, 2022. http://dx.doi.org/10.1007/978-3-662-64269-6_17.

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Arnold, Bożena. "Zirconium Oxide in Dentistry." In Zircon, Zirconium, Zirconia - Similar Names, Different Materials, 89–93. Berlin, Heidelberg: Springer Berlin Heidelberg, 2022. http://dx.doi.org/10.1007/978-3-662-64269-6_20.

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Arnold, Bożena. "Zirconium Oxide Kitchen Utensils." In Zircon, Zirconium, Zirconia - Similar Names, Different Materials, 83–84. Berlin, Heidelberg: Springer Berlin Heidelberg, 2022. http://dx.doi.org/10.1007/978-3-662-64269-6_18.

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Arnold, Bożena. "Zirconium Oxide: A Versatile Material." In Zircon, Zirconium, Zirconia - Similar Names, Different Materials, 43–44. Berlin, Heidelberg: Springer Berlin Heidelberg, 2022. http://dx.doi.org/10.1007/978-3-662-64269-6_10.

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Arnold, Bożena. "The Crystal World of Zirconium Oxide." In Zircon, Zirconium, Zirconia - Similar Names, Different Materials, 53–57. Berlin, Heidelberg: Springer Berlin Heidelberg, 2022. http://dx.doi.org/10.1007/978-3-662-64269-6_13.

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Conference papers on the topic "Zirconium oxide"

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Murdzek, Jessica A., and Steven M. George. "Thermal Atomic Layer Etching of Amorphous and Crystalline Hafnium Oxide, Zirconium Oxide, and Hafnium Zirconium Oxide." In 2019 International Symposium on VLSI Technology, Systems and Application (VLSI-TSA). IEEE, 2019. http://dx.doi.org/10.1109/vlsi-tsa.2019.8804645.

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Norman, C. J. "Zirconium Oxide Products in Automotive Systems." In SAE International Congress and Exposition. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 1997. http://dx.doi.org/10.4271/970460.

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Horti, N. C., M. D. Kamatagi, S. K. Nataraj, M. S. Sannaikar, and S. R. Inamdar. "Photoluminescence properties of zirconium oxide (ZrO2) nanoparticles." In PROCEEDINGS OF INTERNATIONAL CONFERENCE ON ADVANCES IN MATERIALS RESEARCH (ICAMR - 2019). AIP Publishing, 2020. http://dx.doi.org/10.1063/5.0022460.

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Mikhailov, M. M., V. V. Neshchimenko, Chundong Li, and Jacob I. Kleiman. "Radiation Stability of Zinc Oxide Pigment Modified by Zirconium Oxide and Aluminum Oxide Nanopowders." In PROTECTION OF MATERIALS AND STRUCTURES FROM SPACE ENVIRONMENT: Proceedings of the 9th International Conference: Protection of Materials and Structures From Space Environment. AIP, 2009. http://dx.doi.org/10.1063/1.3076886.

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Nauman, Malik Muhammad, Mohammad Zulfikre Esa, Juliana Hj Zaini, Asif Iqbal, and Saifullah Abu Bakar. "Zirconium Oxide based memristors fabrication via Electrohydrodynamic Printing." In 2020 IEEE 11th International Conference on Mechanical and Intelligent Manufacturing Technologies (ICMIMT). IEEE, 2020. http://dx.doi.org/10.1109/icmimt49010.2020.9041208.

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Khajuria, Pooja, Rubby Mahajan, Sandeep Kumar, and Ram Prakash. "Synthesis and optical properties of magnesium zirconium oxide." In 3RD INTERNATIONAL CONFERENCE ON CONDENSED MATTER AND APPLIED PHYSICS (ICC-2019). AIP Publishing, 2020. http://dx.doi.org/10.1063/5.0001422.

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Lim, H. S., A. Ahmad, and H. Hamzah. "Synthesis of zirconium oxide nanoparticle by sol-gel technique." In THE 2013 UKM FST POSTGRADUATE COLLOQUIUM: Proceedings of the Universiti Kebangsaan Malaysia, Faculty of Science and Technology 2013 Postgraduate Colloquium. AIP Publishing LLC, 2013. http://dx.doi.org/10.1063/1.4858755.

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Buyakov, Ales, and Sergey Kulkov. "Deformation behavior of porous ceramics based on zirconium oxide." In PROCEEDINGS OF THE INTERNATIONAL CONFERENCE “PHYSICAL MESOMECHANICS. MATERIALS WITH MULTILEVEL HIERARCHICAL STRUCTURE AND INTELLIGENT MANUFACTURING TECHNOLOGY”. AIP Publishing, 2022. http://dx.doi.org/10.1063/5.0084260.

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Rautioaho, R., A. Uusimaki, J. Levoska, T. Kokkomaki, P. Karjalainen, and S. Leppavuori. "Studies To Prepare Superconducting Thick Films On Aluminium Oxide And Zirconium Oxide Substrates." In 1988 Semiconductor Symposium, edited by Cheng-Chung J. Chi and R. Bruce van Dover. SPIE, 1988. http://dx.doi.org/10.1117/12.947469.

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Kim, H. K., H. S. Choi, and C. H. Lee. "Failure Analysis of Plasma Sprayed ZrO2-CeO2-Y2O3 Thermal Barrier Coatings." In ITSC 1999, edited by E. Lugscheider and P. A. Kammer. Verlag für Schweißen und verwandte Verfahren DVS-Verlag GmbH, 1999. http://dx.doi.org/10.31399/asm.cp.itsc1999p0740.

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Abstract:
Abstract This paper aims to clarify the thermal and mechanical properties of zirconium dioxide-cerium(IV) oxide-yttrium oxide and zirconium dioxide-yttrium oxide plasma sprayed coatings. such as phase transformation, bond coat oxidation, and thermal expansion mismatch. Both coatings showed a 7 to 11% porosity fraction and typical lamellar structure, which formed due to continuous wetting by liquid droplets. It is observed that the zirconium dioxide-cerium(IV) oxide-yttrium oxide coating turned out to be better than the zirconium dioxide-yttrium oxide because there was no phase change from the tetragonal to the monoclinic phase (which leads to a spatial expansion), because there was a smaller thermal expansion offset and the effect of the oxide growth stress the better thermal insulation was relatively small. Paper includes a German-language abstract.
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Reports on the topic "Zirconium oxide"

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Silvernail, Nathan J., Jeffery L. Stalker, and Thor Lingenfelter. Environmentally Friendly Zirconium Oxide Pretreatment. Fort Belvoir, VA: Defense Technical Information Center, May 2013. http://dx.doi.org/10.21236/ada600415.

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Park, E. T., and J. H. Park. Pressure effect on ionic conductivity in yttrium-oxide-doped single-crystal zirconium oxide. Office of Scientific and Technical Information (OSTI), June 1998. http://dx.doi.org/10.2172/656718.

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Benavides, Pahola, and Kathryn Kingsbury. Life Cycle Inventories for Palladium on Niobium Phosphate (Pd/NbOPO4) and Zirconium Oxide (ZrO2) Catalysts. Office of Scientific and Technical Information (OSTI), April 2021. http://dx.doi.org/10.2172/1784707.

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Worrell, W. L. Zirconia-based electrodes for solid oxide fuel cells. Office of Scientific and Technical Information (OSTI), December 1989. http://dx.doi.org/10.2172/7022625.

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Swab, Jeffrey J. Role of Oxide Additives in Stabilizing Zirconia for Coating Applications. Fort Belvoir, VA: Defense Technical Information Center, September 2001. http://dx.doi.org/10.21236/ada396870.

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Liaw, B. Y., and S. Y. Song. Modifying zirconia solid electrolyte surface property to enhance oxide transport. Office of Scientific and Technical Information (OSTI), December 1996. http://dx.doi.org/10.2172/460197.

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Lee, You-Kee, Jung-Yeul Kim, Young-Ki Lee, Insoo Kim, Hee-Soo Moon, Jong-Wan Park, Craig P. Jacobson, and Steven J. Visco. Conditioning effects on La1-xSrxMnO3-Yttria stabilized Zirconia electrodes for thin-film solid oxide fuel cells. Office of Scientific and Technical Information (OSTI), December 2002. http://dx.doi.org/10.2172/810538.

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Steven A. Attanasio, David S. Morton, and Mark A. Ando. Measurement and Calculation of Electrochemical Potentials in Hydrogenated High Temperature Water, including an Evaluation of the Yttria-Stabilized Zirconia/Iron-Iron Oxide (Fe/Fe3O4) Probe as Reference Electrode. Office of Scientific and Technical Information (OSTI), October 2001. http://dx.doi.org/10.2172/821313.

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Yttria-stabilized zirconia solid oxide electrolyte fuel cells, monolithic solid oxide fuel cells. Office of Scientific and Technical Information (OSTI), January 1989. http://dx.doi.org/10.2172/7116623.

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Yttria-stabilized zirconia solid oxide electrolyte fuel cells, monolithic solid oxide fuel cells. Office of Scientific and Technical Information (OSTI), January 1989. http://dx.doi.org/10.2172/5012099.

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