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Tolerance factor for pyrochlores and related structures
Acta Crystallographica Section B Structural Science Crystal Engineering and Materials, 2013In this work a new empirical tolerance factor for compounds with pyrochlore structure is proposed. This suggested tolerance factor is based on experimental structural data and on the tolerance factors proposed. However, since it does not depend on the structural data, this new tolerance factor permits the prediction of some properties of these ...
R, Mouta, R X, Silva, C W A, Paschoal
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Zirconate pyrochlores under high pressure
Physical Chemistry Chemical Physics, 2010Ab 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 +5 more
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EXPERIMENTAL STUDIES OF FRUSTRATED PYROCHLORE ANTIFERROMAGNETS
ChemInform, 2005AbstractFor Abstract see ChemInform Abstract in Full Text.
Bruce D. Gaulin, Jason S. Gardner
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A Fluoride with Pyrochlore Structure
Nature, 1939THE formula of the rare mineral ralstonite is usually written (Na2,Mg)F2.3Al(F,OH)3.2H2O. This implies a replacement of Na2 by Mg. X-ray investigation of this mineral shows that it belongs to the space-group Oh7 — Fd3m and that the edge of the unit cube has a length of 9.87 A. By recalculation from the best available analysis (Penfield and Harper, 1886)
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Synthesis and structures of high-entropy pyrochlore oxides
Journal of the European Ceramic Society, 2020Haibin Zhang, Sifan Zeng, Zhen Teng
exaly
2016
Contemporary investigations of swift heavy ion irradiated A2B2O7 pyrochlores are driven by the interest in their use for the immobilisation of nuclear waste [1, 2]. Employed techniques (X-ray diffraction, transmission electron microscopy, Raman spectroscopy) provide detailed insight into pyrochlore response to fission-fragment like radiation.
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Contemporary investigations of swift heavy ion irradiated A2B2O7 pyrochlores are driven by the interest in their use for the immobilisation of nuclear waste [1, 2]. Employed techniques (X-ray diffraction, transmission electron microscopy, Raman spectroscopy) provide detailed insight into pyrochlore response to fission-fragment like radiation.
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