Results 181 to 190 of about 17,348 (202)

Zirconate pyrochlores under high pressure

Physical Chemistry Chemical Physics, 2010
Ab initio total-energy calculations and X-ray diffraction measurements have been combined to study the phase stability of zirconate pyrochlores (A(2)Zr(2)O(7); A = La, Nd and Sm) under pressures up to 50 GPa. Phase transformations to the defect-cotunnite structure are theoretically predicted at pressures of 22, 20 and 18 GPa, in excellent agreement ...
H Y, Xiao, F X, Zhang, Fei, Gao, M, Lang, Rodney C, Ewing, W J, Weber   +5 more
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Murataite–Pyrochlore Series: A Family of Complex Oxides with Nanoscale Pyrochlore Clusters

Angewandte Chemie International Edition, 2010
identified murataite in a Synroc matrixwith imitators of HLRWs from PO Mayak, a radiochemicalfacility for production and reprocessing of nuclear fuel in theRussian Federation. Five volume percent of this phaseaccumulated about 40% of the total uranium present in thesample,andthisledtodetailedinvestigationsofthechemistryand properties of murataite, in ...
Sergey V, Krivovichev, Sergey V, Yudintsev, Sergey V, Stefanovsky, Natalia I, Organova, Oksana V, Karimova, Vadim S, Urusov   +5 more
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The new pyrochlore Gd2GaSbO7

Journal of Physics and Chemistry of Solids, 1984
Preparation du compose a partir d'un melange Ga 2 O 3 , Sb 2 O 3 et Gd 2 O 3 dans les rapports molaires 1:1:2, par chauffage a l'air a differentes temperatures.
P. Garcia Casado, I. Rasines
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Disorder in Pyrochlore Oxides

Journal of the American Ceramic Society, 2000
Contour plots of disorder reaction energies across a wide variety of A 2 B 2 O 7 pyrochlore oxides have been produced, using atomistic simulation calculations based on energy‐minimization techniques.
Licia Minervini, Robin W. Grimes, Kurt E. Sickafus   +2 more
openaire   +1 more source

Crystal Chemistry of Pyrochlore

Journal of the American Ceramic Society, 1962
Analyses of natural minerals suggest the wide variety of both cationic and anionic substitutions possible in the pyrochlore structure. Limits on the possibilities of ionic substitution in pyrochlore have been determined by the preparation of a large number of compounds.
EUGENE ALESHIN, RUSTUM ROY
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Nanoscale Manipulation of Pyrochlore

2001
Physical Review ...
Boatner, L. A., Chen, J., Lian, J., Wang, L. M., Wang, S. X.   +4 more
openaire   +1 more source

EXPERIMENTAL STUDIES OF FRUSTRATED PYROCHLORE ANTIFERROMAGNETS

ChemInform, 2005
AbstractFor Abstract see ChemInform Abstract in Full Text.
Bruce D. Gaulin, Jason S. Gardner
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ChemInform Abstract: Pyrochlore‐Type Tin Niobate.

ChemInform, 2001
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Cruz, Luisa Paula, Savariault, Jean-Michel, Rocha, Joao   +2 more
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Disordered pyrochlore CsMgInF6 at high pressures

Journal of Solid State Chemistry, 2009
Abstract High pressure behaviour of disordered pyrochlore CsMgInF6 (Pnma, Z=4) has been studied with powder and single-crystal X-ray diffraction to 8.0 and 6.94 GPa, respectively, in diamond anvil cells at room temperature. The material is structurally stable to at least 8.0 GPa with no ordering of the In3+ and Mg2+ cations.
Grzechnik, A., Morgenroth, W., Friese, K.   +2 more
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pyrochlore, n.

2023
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