Electrical and catalytic properties of some oxides with the fluorite or pyrochlore structure: Part 2: Catalytic oxidation of carbon monoxide [PDF]
, 1984 The catalytic properties of mixed oxides with the fluorite or pyrochlore structure were investigated using CO oxidation. The presence of ions with a variable valence state, the size of the ions and especially the extent of pyrochlore ordering affect ...
Bosch, H. +6 more
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Stability of Hydroxo/Oxo/Fluoro Zirconates vs. Hafniates—A DFT Study
Inorganics, 2022 We performed density functional theory (DFT) calculations on binary and ternary oxo/fluoro crystals of the geochemical twin pair zirconium and hafnium to evaluate and compare their stabilities. This is the first DFT study on bulk ZrF4 or HfF4, as well as
Jennifer Anders +4 more
doaj +1 more source
Ultrafine-grained high-entropy zirconates with superior mechanical and thermal properties
Journal of Materiomics, 2023 Ultrafine-grained (Sm0.2Gd0.2Dy0.2Er0.2Yb0.2)2Zr2O7 high-entropy zirconates with single fluorite structure have been fabricated by high-pressure sintering of the self-synthesized nanopowders for the first time.
Mengdong Ma +4 more
doaj +1 more source
Effect of Ultrasonic-Assisted Preparation of Powders on Synthesis of Rare Earth Zirconates [PDF]
Archives of Metallurgy and Materials, 2020 The aim of the research was to determine the effect of sonochemical treatments on homogenization of powders as well as phase composition and thermal stability of sinters.
D. Niemiec, M. Mikuśkiewicz
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Nuclear Materials and Energy, 2020 Proton-conducting oxides have potential applications in hydrogen sensors, hydrogen pumps, and other electrochemical devices including the tritium purification and recovery systems of nuclear fusion reactors.
M. Khalid Hossain +2 more
doaj +1 more source
Electrical and catalytic properties of some oxides with the fluorite or pyrochlore structure: Part 1: Synthesis, characterization and conductivity [PDF]
, 1984 In view of their possible use as electrocatalysts, several oxides with the fluorite or pyrochlore structure were investigated. Part I of this paper deals with the synthesis, characterization and electrical conductivity of these materials.
Bosch, H. +6 more
core +2 more sources
Processing of yttrium-doped barium zirconate for high proton conductivity [PDF]
, 2007 The factors governing the transport properties of yttrium-doped barium zirconate (BYZ) have been explored, with the aim of attaining reproducible proton conductivity in well-densified samples.
Babilo, Peter +2 more
core +1 more source
Sol–gel processing and characterization of (RE-Y)-zirconia powders for thermal barrier coatings [PDF]
, 2011 The effect of doping on the structural, morphological and thermal properties of ZrO2–XO1.5 (X=Y, La, Sm, Er) solid solutions for thermal barrier (TBC) applications was investigated. Oxide powders of various compositions from 9.7 to 40 mol% XO1.5 (X=Y, La,
Ansart, Florence +4 more
core +2 more sources
Synthesis, Sintering, and Electrical Properties of BaCe0.9−xZrxY0.1O3−δ [PDF]
, 2008 BaCe0.9−xZrxY0.1O3−δ powders were synthesized by a solid-state reaction. Different contents of cerium and zirconium were studied. Pellets were sintered using either conventional sintering in air at 1700◦C or the Spark Plasma Sintering (SPS) technique ...
Bonanos, Nikolaos +3 more
core +4 more sources
Zirconate Pyrochlore Frustrated Magnets: Crystal Growth by the Floating Zone Technique
Crystals, 2016 This article reviews recent achievements on the crystal growth of a new series of pyrochlore oxides—lanthanide zirconates, which are frustrated magnets with exotic magnetic properties. Oxides of the type A 2 B 2 O 7 (where A =
Monica Ciomaga Hatnean +4 more
doaj +1 more source