Relevant bibliographies by topics / Nonstoichiometric oxides

Contents

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

Academic literature on the topic 'Nonstoichiometric oxides'

Author: Grafiati
Published: 2 June 2025
Last updated: 31 July 2025

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Journal articles on the topic "Nonstoichiometric oxides"

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Chen, Pengqi, Mingli Qin, Zheng Chen, Baorui Jia, and Xuanhui Qu. "Solution combustion synthesis of nanosized WOx: characterization, mechanism and excellent photocatalytic properties." RSC Advances 6, no. 86 (2016): 83101–9. http://dx.doi.org/10.1039/c6ra12375a.

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We present a method called solution combustion synthesis by using metal acid radical ions to design nanostructured tungsten oxide with both stoichiometric and oxygen-vacancy-rich nonstoichiometric oxides with excellent photocatalytic activity.
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Dieckmann, Rüdiger. "Point Defects and Diffusion in Nonstoichiometric Metal Oxides." MRS Bulletin 16, no. 12 (1991): 27–32. http://dx.doi.org/10.1557/s0883769400055317.

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This article briefly reviews the relationships between point defects and ion diffusion in nonstoichiometric ionic crystals, with special emphasis on cubic oxides. It focuses on crystalline materials with negligibly small concentrations of nonequilibrium defects such as dislocations and grain boundaries. First, the concepts used to analyze the point defect structure and the diffusion of ions in nonstoichiometric crystals will be discussed. Then, specific oxides will be considered as examples. These oxides are manganosite, Mn1−ΔO, and spinels of the type Me3−δO4 with Fe and Mn cations, respectiv
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Lv, Min, Xiaoli Guo, Zhongpeng Wang, Liguo Wang, Qian Li, and Zhaoliang Zhang. "Synthesis and characterization of Co–Al–Fe nonstoichiometric spinel-type catalysts for catalytic CO oxidation." RSC Advances 6, no. 32 (2016): 27052–59. http://dx.doi.org/10.1039/c6ra02204a.

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Ezbiri, M., M. Takacs, D. Theiler, R. Michalsky та A. Steinfeld. "Tunable thermodynamic activity of LaxSr1−xMnyAl1−yO3−δ (0 ≤ x ≤ 1, 0 ≤ y ≤ 1) perovskites for solar thermochemical fuel synthesis". Journal of Materials Chemistry A 5, № 8 (2017): 4172–82. http://dx.doi.org/10.1039/c6ta06644e.

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Zhi-Chang, Wang. "Thermodynamics of nonstoichiometric multicomponent uranium oxides." Journal of Physics and Chemistry of Solids 48, no. 6 (1987): 527–33. http://dx.doi.org/10.1016/0022-3697(87)90047-3.

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Chaudhry, M. Iqbal. "A study of native oxides of β–SiC using Auger electron spectroscopy". Journal of Materials Research 4, № 2 (1989): 404–7. http://dx.doi.org/10.1557/jmr.1989.0404.

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Thermal and anodic oxide films of beta silicon carbide are analyzed using Auger electron spectroscopy. Auger depth-composition profiles are obtained in order to determine the chemical composition of the oxide films. The position and shape of silicon spectral peaks are used to estimate the chemical bonding of the oxide constituents. It is found that the wet thermal oxide is almost stoichiometric but contains about 14% carbon. Dry oxide, on the other hand, has less than 3% carbon but is highly nonstoichiometric. The carbon content in the anodic oxide is 12%. Anodic oxide films, like dry-oxide fi
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Bolotov, V. V., E. V. Knyazev, S. N. Nesov, K. E. Ivlev, I. V. Ponomareva, and E. A. Roslikova. "SELECTIVE SENSORY MULTILAYER STRUCTURES BASED ON TIN AND MANGANESE OXIDES." DYNAMICS OF SYSTEMS, MECHANISMS AND MACHINES 12, no. 3 (2024): 12–17. https://doi.org/10.25206/2310-9793-2024-12-3-12-17.

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The paper shows the possibility of creating a multilayer sensor structure based on nonstoichiometric tin oxide as a sensitive layer and manganese oxide as a filter layer. The structure and morphology of layers of tin and manganese oxides were characterized by scanning electron microscopy. The processes occurring on the surface of the sensor structure in interaction with molecules of analytic gases (nitrogen dioxide and hydrogen sulfide) have been studied by X-ray photoelectron spectroscopy. The conducted experiments of gas sensitivity showed a sectional sensitivity to hydrogen sulfide structur
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Prieto, O., and V. Rives. "Preparación y caracterización de óxidos de manganeso no estequiométricos." Boletín de la Sociedad Española de Cerámica y Vidrio 39, no. 3 (2000): 233–38. http://dx.doi.org/10.3989/cyv.2000.v39.i3.832.

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Islamov, Damir R., Vladimir N. Kruchinin, Vladimir Sh Aliev, et al. "Potential Fluctuation in RRAM Based on Non-Stoichiometric Hafnium Sub-Oxides." Advances in Science and Technology 99 (October 2016): 69–74. http://dx.doi.org/10.4028/www.scientific.net/ast.99.69.

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We study the structure of nonstoichiometric HfOx films with variable composition using methods of XPS, spectroscopic ellipsometry, and ab initio calculations. According to XPS and optical absorption experiment data HfOx consists of metal Hf and ~10-15% of nonstoichiometric hafnium sub-oxide HfOy (y<2). HfOy can be placed between HfO2 and Hf, inside HfO2, inside Hf. According to this model space fluctuations of chemical composition cause space fluctuations of bandgap in HfOx. We found that transport in such electronic systems is described by percolation theory. This approach can be applied t
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Mazunov, D. O. "Field Emission Properties of Nonstoichiometric Silicon Oxides." Telecommunications and Radio Engineering 63, no. 10 (2005): 891–901. http://dx.doi.org/10.1615/telecomradeng.v63.i10.50.

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Dissertations / Theses on the topic "Nonstoichiometric oxides"

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Neagu, Dragos. "Materials and microstructures for high temperature electrochemical devices through control of perovskite defect chemistry." Thesis, University of St Andrews, 2013. http://hdl.handle.net/10023/3606.

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The development of technologies that enable efficient and reliable energy inter-conversion and storage is of key importance for tempering the intermittent availability of renewable energy sources, and thus for developing an energy economy based on sustainable, clean energy production. Solid oxide electrolysis cells (SOECs) may be used to store excess electrical energy as hydrogen, while solid oxide fuel cells (SOFCs) could convert back hydrogen into electricity, thus balancing energy availability and demand. However, the current state-of-the-art hydrogen electrode used in both SOECs and SOFCs,
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Grevin, Benjamin. "Étude par RMN de la dynamique de charge et de la localisation des porteurs dans les cuprates TRBa2Cu3O7 (TR=Pr, Y) : influence des milieux intercalaires." Université Joseph Fourier (Grenoble ; 1971-2015), 1998. http://www.theses.fr/1998GRE10095.

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Ce memoire est consacre a l'etude par rmn et rqn des couches <single high-reversed-9 quotation mark>intercalaires<right single quotation mark> dans les supraconducteurs de la famille trba#2cu#3o#6# #+# # (tr pour terre-rare). Les resultats presentes portent sur la rqn/rmn du site cu(1) des chaines, dans l'isolant prba#2cu#3o#y##7, et le supraconducteur surdope yba#2cu#3o#y##7, et demontrent l'importance des fluctuations de charge dans les plans intercalaires. Dans prba#2cu#3o#7 l'analyse des parametres rmn/rqn statiques et dynamiques entre 300k et 4. 2k revele une transition dans les excitatio
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Gillet, Jean-Alain. "Etude par résonance magnétique nucléaire des oxydes supraconducteurs à haute température critique YBa2Cu3O(6+x)." Université Joseph Fourier (Grenoble), 1994. http://www.theses.fr/1994GRE10113.

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Nous présentons un ensemble de résultats obtenus par résonance magnétique nucléaire (rmn) sur six monocristaux d'yba#2cu#3o#6#+#x, représentatifs des différents types de supraconducteurs à haute température critique de cette famille. Ces résultats comprennent des mesures du déplacement hyperfin magnétique, du taux de relaxation spin-réseau (trsr) (t#1) et du taux de relaxation spin-spin (t#2#g). Une comparaison quantitative des résultats obtenus par diffusion inélastique de neutrons (din) et par rmn, sur des échantillons similaires voire identiques, est présentée concernant les propriétés magn
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Martins, Loureiro Sergio. "Sur la synthèse et la structure des supraconducteurs au mercure." Université Joseph Fourier (Grenoble ; 1971-2015), 1997. http://www.theses.fr/1997GRE10125.

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La decouverte recente de nouvelles familles a base de mercure de cuprates supraconducteurs a haute temperature critique a relance l'interet de la communaute scientifique pour ces composes. On presente ici une etude exhaustive de l'elaboration et des proprietes structurales des deux series, hgba#2ca#n#-#1cu#no#2#+#2#n#+#, hg-12(n-1)n et h#g#2ba#2(r,ca)cu#2o#8#-#, (hg-2212). Hg-12(n-1)n les methodes de preparations a tres haute pression et temperature ont ete optimisees, en particulier grace au controle de la valence du cuivre dans les precurseurs. Les termes superieurs de la serie ont ete prepa
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Pisch, Alexander. "Étude thermodynamique et dépot chimique en phase vapeur de la phase supraconductrice : YBa2Cu3O(6+x)." Grenoble INPG, 1994. http://www.theses.fr/1994INPG0147.

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L'etude des composes supraconducteurs a haute temperature critique et de yba#2cu#3o#6#+#x en particulier presente un tres grand interet de part ses applications potentielles dans les domaines de l'electronique et de l'electrotechnique. L'analyse thermodynamique du systeme quaternaire y-ba-cu-o est un outil indispensable pour pouvoir comprendre et definir les chemins reactionnels qui permettent la synthese d'un compose de proprietes supraconductrices optimales. Dans le premier chapitre de ce memoire, apres un bref rappel sur les caracteristiques du compose yba#2cu#3o#6#+#x, les differentes meth
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Schmidt, Marek Wojciech, and Marek Schmidt@rl ac uk. "Phase formation and structural transformation of strontium ferrite SrFeOx." The Australian National University. Research School of Physical Sciences and Engineering, 2001. http://thesis.anu.edu.au./public/adt-ANU20020708.190055.

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Non-stoichiometric strontium iron oxide is described by an abbreviated formula SrFeOx (2.5 ≤ x ≤ 3.0) exhibits a variety of interesting physical and chemical properties over a broad range of temperatures and in different gaseous environments. The oxide contains a mixture of iron in the trivalent and the rare tetravalent state. The material at elevated temperature is a mixed oxygen conductor and it, or its derivatives,can have practical applications in oxygen conducting devices such as pressure driven oxygen generators, partial oxidation reactors in electrodes for solid oxide fuel cells (SOFC).
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Gautier, Eric. "Etude des propriétés structurales et physiques de la famille d'oxycarbonates supraconducteurs (Cu,C)Ba2Ca(n-1)CunOy." Université Joseph Fourier (Grenoble), 1997. http://www.theses.fr/1997GRE10281.

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Parmi les nouveaux materiaux supraconducteurs a hautes temperatures critiques (tc) decouverts ces dernieres annees, les cuprocarbonates de formule generale (cu,c)ba#2ca#n#-#1cu#no#y presentent l'avantage d'avoir des tc tres elevees (jusqu'a 120 k) sans contenir de cations toxiques tels que bi, ti, ou hg. L'une de leurs caracteristiques est d'etre synthetises sous haute pression (8 gpa) et a haute temperature (1200c). La synthese des composes a ete optimisee, d'une part grace a un meilleur controle de la quantite de carbone, d'autre part a la prise en compte du taux d'oxydation du precurseur. L
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Moshopoulou, Evangélia. "Les systèmes Li(1-x)Ti2O4 et Li(1-x)NbO2 : relations entre stoechiométrie, structure et supraconductivité." Université Joseph Fourier (Grenoble), 1995. http://www.theses.fr/1995GRE10020.

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Ce travail est consacre a l'etude des variations structurales et des proprietes physiques en fonction de x dans les systemes supraconducteurs li#1#-#xti#2o#4 et li#1#-#xnbo#2 (0x<1). Nous avons travaille entierement sur des monocristaux afin de pouvoir controler l'extraction chimique des quantites precises de li#+ et de favoriser une bonne homogeneite des echantillons. Nos resultats montrent que le depart de li#+ dans li#1#-#xti#2o#4, a temperature ambiante, produit, a partir de x. 15, un deplacement des cations de titane sur les sites octaedriques vides 16c de la structure spinelle. Nous avon
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Ji, Ho-Il. "Redox Kinetics of Nonstoichiometric Oxides." Thesis, 2017. https://thesis.library.caltech.edu/10184/1/Thesis_Ho-Il_Ji_2017_v4_final.pdf.

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<p>Cerium oxide (CeO<sub>2-<i>δ</i></sub>) and its derivatives are the most attractive materials under consideration for solar-driven thermochemical production of chemical fuels. Understanding the rate-limiting factors in fuel production is essential for maximizing the efficacy of the thermochemical process.</p> <p>The rate of response of the porous ceria structured with architectural features typical of those employed in solar reactors was measured via electrical conductance relaxation methods. A transition from behavior controlled by material surface reaction kinetics to that controlled b
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Ignatowich, Michael Joseph. "An Investigation of Nonstoichiometric Oxides for Solar-Driven Thermochemical Fuel Production." Thesis, 2017. https://thesis.library.caltech.edu/10288/7/2017-06-05%20Ignatowich%20Thesis%20-%20Final.pdf.

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<p>In order to realize energy independence and substantially combat global climate change, renewable and sustainable energy technologies must be developed. Solar energy is the most readily abundant, and if converted into a chemical fuel, could be stored and transported easily. Solar-driven thermochemical cycling is a method of chemical fuel production that shows great promise, but current state-of-the-art systems have very low efficiencies. This work discusses new reactor designs and cycling techniques using nonstoichiometric oxides that will enable more efficient solar to fuel energy conversi
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Books on the topic "Nonstoichiometric oxides"

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Lobo, Rupert Cecil. Structural studies of nonstoichiometric mixed metal copper oxides. University of Birmingham, 1990.

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Gusev, Alexandr I. Disorder and Order in Strongly Nonstoichiometric Compounds: Transition Metal Carbides, Nitrides and Oxides. Springer Berlin Heidelberg, 2001.

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Soerensen, O. T. Nonstoichiometric Oxides. Elsevier Science & Technology Books, 2012.

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Tanasescu, Speranta, ed. Structure Processing Properties Relationships in Stoichiometric and Nonstoichiometric Oxides. IntechOpen, 2020. http://dx.doi.org/10.5772/intechopen.77573.

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Tanasescu, Speranta. Structure Processing Properties Relationships in Stoichiometric and Nonstoichiometric Oxides. IntechOpen, 2020.

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Disorder and Order in Strongly Nonstoichiometric Compounds: Transition Metal Carbides, Nitrides and Oxides (Springer Series in Materials Science). Springer, 2001.

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Book chapters on the topic "Nonstoichiometric oxides"

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Cheetham, A. K., and R. J. D. Tilley. "Classification of Nonstoichiometric Oxides." In Inorganic Reactions and Methods. John Wiley & Sons, Inc., 2007. http://dx.doi.org/10.1002/9780470145203.ch105.

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Greenblatt, M., and B. Raveau. "Nonstoichiometric Layer Structure Oxides." In Inorganic Reactions and Methods. John Wiley & Sons, Inc., 2007. http://dx.doi.org/10.1002/9780470145203.ch123.

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Conroy, L. E. "Stable Bivariant Oxide Phases: Nonstoichiometric Oxides Proper." In Inorganic Reactions and Methods. John Wiley & Sons, Inc., 2007. http://dx.doi.org/10.1002/9780470145203.ch111.

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Cormack, A. N., P. Saul, and C. R. A. Catlow. "The Behaviour of Protons in Oxides." In Transport in Nonstoichiometric Compounds. Springer US, 1985. http://dx.doi.org/10.1007/978-1-4613-2519-2_37.

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Cormack, A. N., and C. R. A. Catlow. "Transport in Anion Deficient Fluorite Oxides." In Transport in Nonstoichiometric Compounds. Springer US, 1985. http://dx.doi.org/10.1007/978-1-4613-2519-2_9.

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Cava, R. J. "Structure and Stoichiometry in Lithium Inserted Metal Oxides." In Transport in Nonstoichiometric Compounds. Springer US, 1985. http://dx.doi.org/10.1007/978-1-4613-2519-2_39.

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Tomlinson, S. M., C. R. A. Catlow, and J. H. Harding. "Defect Clustering In Rock-Salt Structured Transition Metal Oxides." In Transport in Nonstoichiometric Compounds. Springer US, 1985. http://dx.doi.org/10.1007/978-1-4613-2519-2_41.

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Petot-Ervas, G., F. Gesmundo, and C. Petot. "Influence of Heterovalent Impurities on the Mass Transport in p-Type Semiconducting Oxides." In Transport in Nonstoichiometric Compounds. Springer US, 1985. http://dx.doi.org/10.1007/978-1-4613-2519-2_13.

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Anderson, Alfred B., Robin W. Grimes, and Arthur H. Heuer. "A Predictive Molecular Orbital Theory Applied to Defects and Structures of Transition Metal Oxides." In Transport in Nonstoichiometric Compounds. Springer US, 1985. http://dx.doi.org/10.1007/978-1-4613-2519-2_40.

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Dieckmann, Rüdiger, and Michael Keller. "Defect Structure and Transport Properties of the Manganese Oxides Manganosite (Mn1−ΔO) and Hausmannite (Mn3−δO4)." In Transport in Nonstoichiometric Compounds. Springer US, 1985. http://dx.doi.org/10.1007/978-1-4613-2519-2_23.

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Conference papers on the topic "Nonstoichiometric oxides"

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Herro, H. M., and A. Banweg. "Phosphate Corrosion in High Pressure Boilers." In CORROSION 1995. NACE International, 1995. https://doi.org/10.5006/c1995-95498.

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Abstract Phosphate treatments have been used in boilers for more than 70 years. As operating pressures increased, the frequency of corrosion-related failures in phosphate-treated boilers also increased. Many failures were attributed to "free" caustic generated by the nonstoichiometric precipitation of various phosphate compounds on boiler surfaces. Congruent control was devised to prevent the formation of free caustic by feeding orthophosphates so as to maintain a boiler water sodium to phosphate ratio in a range where theory surmised free caustic could not form. Unfortunately, conventional co
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Klochko, Natalia, Volodymyr Kopach, Dmytro Zhadan, Sergey Petrushenko, Kinga Adach, and Sergei Dukarov. "Nonstoichiometric Nickel Oxide Films Deposited by SILAR Method on Flexible Polyimide Substrates." In 2024 IEEE 5th KhPI Week on Advanced Technology (KhPIWeek). IEEE, 2024. https://doi.org/10.1109/khpiweek61434.2024.10878006.

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Ge, J. J., M. Yang, X. B. Xue, J. Du, X. S. Wu та W. S. Tan. "Structural and magnetic properties in the nonstoichiometric perovskite-type oxides La0.67Sr0.15□0.18MnO3−δ". У 8th International Vacuum Electron Sources Conference and Nanocarbon (2010 IVESC). IEEE, 2010. http://dx.doi.org/10.1109/ivesc.2010.5644174.

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Voleník, K., P. Chráska, J. Dubský, J. Had, J. Leitner, and O. Schneeweiss. "Oxidation of Ni-Based Alloys Sprayed by a Water-Stabilized Plasma Gun (WSP)." In ITSC2003, edited by Basil R. Marple and Christian Moreau. ASM International, 2003. http://dx.doi.org/10.31399/asm.cp.itsc2003p1033.

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Abstract During air plasma spraying, molten metal particles flying in the plasma jet are oxidized. As a result, a part of the metal melt is converted into oxide melt. After the particle impact and solidification, oxidation continues as a gas – solid reaction. The present paper deals with oxidation of two binary Ni-based alloys. One of them, Ni-20%Cr, is frequently used in thermal spray applications. Another one was a Ni-Fe alloy with an approximate proportion of both components 1:1. The feedstock powders were plasma sprayed by a water-stabilized gun WSP. PAL 160. To analyze the reaction produc
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Keene, Daniel J., Jane H. Davidson, and Wojciech Lipiński. "A Model of Transient Heat and Mass Transfer in a Heterogeneous Medium of Cerium Dioxide Undergoing Nonstoichiometric Reduction." In ASME 2012 6th International Conference on Energy Sustainability collocated with the ASME 2012 10th International Conference on Fuel Cell Science, Engineering and Technology. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/es2012-91380.

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The redox chemistry of nonstoichiometric metal oxides can be used to produce chemical fuels by harnessing concentrated solar energy to split water and/or carbon dioxide. In such a process, it is desirable to use a porous reactive substrate for increased surface area and improved gas transport. The present study develops a macroscopic-scale model of porous ceria undergoing thermal reduction. The model captures the coupled interactions between the heat and mass transfer and the heterogeneous chemistry using a local thermal non-equilibrium (LTNE) formulation of the volume averaged conservation of
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Koinuma, H., J. Shimoyama, J. Mizusaki, M. Kawasaki, and K. Fueki. "Nonstoichiometry and Defect Equilibrium in Stannic Oxide." In 1986 International Conference on Solid State Devices and Materials. The Japan Society of Applied Physics, 1986. http://dx.doi.org/10.7567/ssdm.1986.d-8-5.

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Vashook, V., J. Rebello, J. Y. Chen, et al. "Crystal structure, oxygen nonstoichiometry and diffusion mobility in some ferrites-nickelites." In 2012 IEEE International Conference on Oxide Materials for Electronic Engineering (OMEE). IEEE, 2012. http://dx.doi.org/10.1109/omee.2012.6464780.

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Garrett, Mark H., Stephen W. Mccahon, and Armand R. Tanguay. "Crystal growth and characterization of nonstoichiometric bismuth silicon oxide, BixSiO1.5x+2." In OSA Annual Meeting. Optica Publishing Group, 1988. http://dx.doi.org/10.1364/oam.1988.wg3.

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Bismuth silicon oxide (Bi12SiO20; BSO) is a wide band gap relaxation semiconductor with unique photorefractive and electrorefractive properties. Single-crystal BSO has been utilized in numerous optical processing and computing devices, including the Pockels readout optical modulator (PROM), the photorefractive incoherent-to-coherent optical converter (PICOC), and volume holographic optical elements (VHOEs). We report the characterization of device-relevant materials parameters induced by the Czochralski growth of nonstoichiometric bismuth silicon oxide (Bi x SiO1.5 x +2). Several series of thr
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Erne, M., Fr W. Bach, K. Möhwald, and D. Kolar. "Basic Principles to Obtain Oxide Ceramic Coating Systems with Reduced Sliding Wear by Suspension Plasma Spraying." In ITSC2009, edited by B. R. Marple, M. M. Hyland, Y. C. Lau, C. J. Li, R. S. Lima, and G. Montavon. ASM International, 2009. http://dx.doi.org/10.31399/asm.cp.itsc2009p0200.

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Abstract In this study, suspension plasma spraying is used to produce self-lubricating titanium oxide coatings. Certain nonstoichiometric titanium oxide phases, called Magneli phases, exhibit a reduction in friction under dry sliding conditions at elevated temperatures. These phases, however, tend to undergo crystal changes during thermal spraying, resulting in the loss of their good friction behavior. In this work, the goal is to stabilize these phases with suitable lattice substitutions for Ti4+. The resulting phases are shown to be homologous to TinO2n-1, but have the advantages of a three-
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Krenzke, Peter, and Jane Davidson. "Thermodynamic Analysis of the Ceria Redox Cycle With Methane-Driven Reduction for Solar Fuel Production." In ASME 2014 8th International Conference on Energy Sustainability collocated with the ASME 2014 12th International Conference on Fuel Cell Science, Engineering and Technology. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/es2014-6332.

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The nonstoichiometric cerium oxide (ceria) redox cycle is an attractive pathway for storing energy from concentrated sunlight in chemical bonds by splitting water and carbon dioxide. The endothermic reduction reaction (R1)CeO2-δox→CeO2-δed+Δδ2O2 is favored thermodynamically at high temperatures and low oxygen partial pressures, while the CO2 and H2O splitting reactions (R2, R3) are exothermic and favored at lower temperatures and higher oxygen partial pressures. The produced hydrogen and carbon monoxide, referred to collectively as syngas, are important feedstocks used in the synthesis of ammo
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