Title: Synthesis and Rietveld Structure Refinement of Americium Pyrochlore Am2Zr2O7
Authors: BELIN R. C.VALENZA P. J.RAISON PHILIPPETILLARD M.
Citation: JOURNAL OF ALLOYS AND COMPOUNDS vol. 448 p. 321-324
Publisher: ELSEVIER SCIENCE SA
Publication Year: 2008
JRC N°: JRC44966
ISSN: 0925-8388
URI: http://dx.doi.org/10.1016/j.jallcom.2006.11.107
http://publications.jrc.ec.europa.eu/repository/handle/JRC44966
DOI: 10.1016/j.jallcom.2006.11.107
Type: Articles in Journals
Abstract: The polycrystalline americium pyrochloreAm2Zr2O7 was recently synthesized from 241AmO2 and ZrO2 powders and its structurewas investigated by X-ray powder pattern fitting. A Rietveld analysis was performed using the computer program JANA 2000. Am2Zr2O7 crystallizes in the space group Fd-3m with a = 10.66849(4) A° . For the less symmetrical of the two independent oxygen atoms, the unconstrained parameter x, which is characteristic of the pyrochlore structure, was found to be 0.339.
JRC Institute:Institute for Transuranium Elements

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