Pyrochlore Oxides
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Pyrochlore Oxides
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Author : Diana G. Fukina
language : en
Publisher: Springer Nature
Release Date : 2023-12-20
Pyrochlore Oxides written by Diana G. Fukina and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-12-20 with Technology & Engineering categories.
This book presents an in-depth exploration of complex metal oxides, focusing on their applications in photocatalysis and biomedical materials. It highlights the practical importance of complex metal oxides, which have gained significant attention in recent years due to their diverse range of properties. The book specifically delves into the most representative series of compounds based on stable structural types of minerals, such as perovskite, fluorite, pyrochlore, corundum, and rutile. It also emphasizes the scientific interest in the pyrochlore mineral structure, which has been shown to exhibit photocatalytic activity. Recent studies have revealed that some compounds with the pyrochlore structure can act as promising candidates for photocatalysis. Additionally, the book highlights the use of photocatalysis in producing biomedical materials based on natural polymers. These materials possess a unique combination of components assembled in a specific structure, which makes them highly attractive for regenerative medicine associated with cell/tissue regeneration stimulation. Overall, this book offers a comprehensive analysis of the potential of complex metal oxides, particularly those with the pyrochlore structure, and is particularly useful for those researchers working in the fields of green chemistry and biomedical materials science.
Pyrochlore Ceramics
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Author : Anirban Chowdhury
language : en
Publisher: Elsevier
Release Date : 2022-06-09
Pyrochlore Ceramics written by Anirban Chowdhury and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-06-09 with Technology & Engineering categories.
Present-day interest in pyrochlore materials is immense. Academic and industrial researchers working with pyrochlore materials need a fundamental understanding of what pyrochlores are and their potential applications. Pyrochlore Ceramics: Properties, Processing, and Applications provides key knowledge and information needed on pyrochlore materials. With an emphasis on recent research developments, the contents review a broad spectrum of pyrochlore systems, focusing on their structures, their successful synthesis, multifaceted properties, and applications. The book brings all aspects together and presents recent research findings on pyrochlore materials. It will be the definitive text for all researchers who aim to venture into the eclectic world of pyrochlores. In addition, the book will be of interest to researchers who are already working on pyrochlore materials, providing them with novel information on the uncommon virtues of pyrochlore systems. All chapters presented in the book are at the cutting edge of research and have never been assembled in book form before. Any researcher working in related fields will gain not only a historical perspective but also a comprehensive overview of recent developments. The book will be a valuable reference resource for academic and industrial researchers working in ceramics and materials science, mechanical, electronics, and chemical engineering, as well as physical and chemical science. Provides an extensive review of novel pyrochlore material systems Compares different types of pyrochlore materials, including their structure, properties, and performance Describes potential applications
Effects Of Doping On Thermal Conductivity Of Pyrochlore Oxides For Advanced Thermal Barrier Coatings
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Author : National Aeronautics and Space Administration (NASA)
language : en
Publisher: Createspace Independent Publishing Platform
Release Date : 2018-06-24
Effects Of Doping On Thermal Conductivity Of Pyrochlore Oxides For Advanced Thermal Barrier Coatings written by National Aeronautics and Space Administration (NASA) and has been published by Createspace Independent Publishing Platform this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-06-24 with categories.
Pyrochlore oxides of general composition, A2B2O7, where A is a 3(+) cation (La to Lu) and B is a 4(+) cation (Zr, Hf, Ti, etc.) have high melting point, relatively high coefficient of thermal expansion, and low thermal conductivity which make them suitable for applications as high-temperature thermal barrier coatings. The effect of doping at the A site on the thermal conductivity of a pyrochlore oxide La2Zr2O7, has been investigated. Oxide powders of various compositions La2Zr2O7, La(1.7)Gd(0.3)Zr2O7, La(1.7)Yb(0.3)Zr2O7 and La(1.7)Gd(0.15)Yb(0.15)Zr2O7 were synthesized by the citric acid sol-gel method. These powders were hot pressed into discs and used for thermal conductivity measurements using a steady-state laser heat flux test technique. The rare earth oxide doped pyrochlores La(1.7)Gd(0.3)Zr2O7, La(1.7)Yb(0.3)Zr2O7 and La(1.7)Gd(0.15)Yb(0.15)Zr2O7 had lower thermal conductivity than the un-doped La2Zr2O7. The Gd2O3 and Yb2O3 co-doped composition showed the lowest thermal conductivity. Bansal, Narottam P. and Zhu, Dongming and Eslamloo-Grami, Maryam Glenn Research Center NASA/TM-2006-214483, E-15775
Tuning The Ground State Of Pyrochlore Oxides Using Chemical Pressure
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Author : Prachi Telang
language : en
Publisher: Mohammed Abdul Sattar
Release Date : 2024-02-05
Tuning The Ground State Of Pyrochlore Oxides Using Chemical Pressure written by Prachi Telang and has been published by Mohammed Abdul Sattar this book supported file pdf, txt, epub, kindle and other format this book has been release on 2024-02-05 with Technology & Engineering categories.
Phase transitions and new phases of matter have continued to challenge our understanding of the quantum condensed matter systems. For decades, phase transitions were thought to be facilitated by the breaking of some symmetry. For example, magnetic ordering emerges due to breaking of the time-reversal symmetry; the crystallization of water into ice, on the other hand, involves broken translational symmetry. This paradigm, however, was challenged with the discovery of topological order in some condensed matter systems in the year 1982. Since then many electronic phases with novel topologies have been predicted theoretically and few have also been realized experimentally. Examples of these electronic phases, across the research frontier, span from graphene to the topological insulators and beyond. Still, several theoretical predictions of various novel topological phases are yet to be realized experimentally. Due to this reason, significant efforts are concentrated around materials with strong spin-orbit interaction, which provide a fertile ground for experimental realization of novel topological phases. Much of condensed matter is about how different kinds of order emerge from inter- actions between many simple constituents. An ideal example of this is the family of transition metal oxides (TMOs) where a plethora of novel phenomena such as high-TC superconductivity, colossal magnetoresistance, and metal-insulator transitions could be observed as a result of the complex interplay of various electronic interactions such as electron correlations, crystal field splitting and spin-orbit coupling. The magnitude of these interactions depends on a number of factors like the atomic number of the transition metal, underlying crystal geometry, ligand environment around the transition metal, etc. Understanding the interplay of these interactions which ultimately decides the ground state is one of the fundamental problems in condensed matter physics. Failure of band theory to explain the insulating ground state in TMOs highlighted the importance of electron-electron interactions. In TMOs, the conduction is driven by d- orbitals which are spatially compact when compared to the s- or p-orbitals in simple metals. This results in strong Coulomb repulsion between the d electrons of TMOs. The transition from metallic to insulating state due to strong electron correlations was successfully modelled theoretically via Hubbard model given by John Hubbard.
Research Technology 2004
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Author :
language : en
Publisher: DIANE Publishing
Release Date :
Research Technology 2004 written by and has been published by DIANE Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on with categories.
Foundations Of Quantum Mechanics In The Light Of New Technology
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Author :
language : en
Publisher:
Release Date :
Foundations Of Quantum Mechanics In The Light Of New Technology written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on with categories.
Introduction To Frustrated Magnetism
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Author : Claudine Lacroix
language : en
Publisher: Springer Science & Business Media
Release Date : 2011-01-12
Introduction To Frustrated Magnetism written by Claudine Lacroix and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-01-12 with Science categories.
The field of highly frustrated magnetism has developed considerably and expanded over the last 15 years. Issuing from canonical geometric frustration of interactions, it now extends over other aspects with many degrees of freedom such as magneto-elastic couplings, orbital degrees of freedom, dilution effects, and electron doping. Its is thus shown here that the concept of frustration impacts on many other fields in physics than magnetism. This book represents a state-of-the-art review aimed at a broad audience with tutorial chapters and more topical ones, encompassing solid-state chemistry, experimental and theoretical physics.
Ordered And Disordered Cubic Systems Pyrochlore To Fluorite Now And The Horizon
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Author : Gordon James Thorogood
language : en
Publisher: Frontiers Media SA
Release Date : 2022-02-18
Ordered And Disordered Cubic Systems Pyrochlore To Fluorite Now And The Horizon written by Gordon James Thorogood and has been published by Frontiers Media SA this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-02-18 with Science categories.
Advances In Ceramic Coatings And Ceramic Metal Systems
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Author : Dongming Zhu
language : en
Publisher: John Wiley & Sons
Release Date : 2009-09-28
Advances In Ceramic Coatings And Ceramic Metal Systems written by Dongming Zhu and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009-09-28 with Technology & Engineering categories.
This volume includes 46 contributed articles from the Advanced Ceramic Coatings for Structural, Environmental and Functional Applications and the International Symposium on Advances in Ceramic-Metal Systems symposia. Topics include processing and microstructure design, mechanical and thermal properties, advanced testing and non-destructive evaluation, wear, erosion and corrosion behavior, functional properties and modeling. A significant portion of the contributed articles focus on current state-of-the-art industrial applications of ceramic coatings and ceramic-metal composites.
Zinc Air Batteries
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Author : Zongping Shao
language : en
Publisher: John Wiley & Sons
Release Date : 2022-10-26
Zinc Air Batteries written by Zongping Shao and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-10-26 with Technology & Engineering categories.
Zinc–Air Batteries Authoritative and comprehensive resource covering foundational knowledge of zinc–air batteries as well as their practical applications Zinc–Air Batteries provides a comprehensive understanding of the history and development of Zn–air batteries, with a systematic overview of components, design, and device innovation, along with recent advances in the field, especially with regards to the cathode catalyst design made by cutting-edge materials, engineering processes, and technologies. In particular, design principles regarding the key components of Zn–air batteries, ranging from air cathode, to zinc anode, and to electrolyte, are emphasized. Furthermore, industrial developments of Zn–air batteries are discussed and emerging new designs of Zn–air batteries are also introduced. The authors argue that designing advanced Zn–air battery technologies is important to the realization of efficient energy storage and conversion—and, going further, eventually holds the key to a sustainable energy future and a carbon-neutral goal. Edited and contributed to by leading professionals and researchers in the field, Zinc–Air Batteries also contains information regarding: Design of oxygen reduction catalysts in primary zinc–air batteries, including precious metals, single-atoms, carbons, and transition metal oxides Design of bifunctional oxygen catalysts in rechargeable zinc–air batteries, covering specific oxygen redox reactions and catalyst candidates Design of three-dimensional air cathode in zinc–air batteries, covering loading of carbon-based and transition metal catalysts, plus design of the three-phase interface Design of electrolyte for zinc–air batteries, including liquid electrolytes (e.g., alkaline) and gel polymer electrolytes (e.g., PVA hydrogel) For students, researchers, and instructors working in battery technologies, materials science, and electrochemistry, and for industry and government representatives for decision making associated with energy and transportation, Zinc–Air Batteries summarizes the research results on Zn–air batteries and thereby helps researchers and developers to implement the technology in practice.