Title: Lattice Anisotropy in Uranium Ternary Compounds - UTX
Authors: MASKOVA SilvieADAMSKA A. M.HAVELA LKIM-NGAN N.-T.hPRZEWOZNIK J.DANIS S.KOTHAPALLI K.KOLOMIETS A. V.HEATHMAN StephenNAKOTTE H.BORDALLO H.
Citation: JOURNAL OF ALLOYS AND COMPOUNDS vol. 522 p. 130-135
Publisher: ELSEVIER SCIENCE SA
Publication Year: 2012
JRC N°: JRC69645
ISSN: 0925-8388
URI: http://www.sciencedirect.com/science/article/pii/S0925838812001946
http://publications.jrc.ec.europa.eu/repository/handle/JRC69645
DOI: 10.1016/j.jallcom.2012.01.122
Type: Articles in Journals
Abstract: Several U-based intermetallic compounds (UCoGe, UNiGe with the TiNiSi structure type and UNiAl with the ZrNiAl structure type) and their hydrides were studied from the point of view of compressibility and thermal expansion. Confronted with existing data for the compounds with the ZrNiAl structure type a common pattern emerges. The direction of the U–U bonds with participation of the 5f states is distinctly the “soft” crystallographic direction, exhibiting also the highest coefficient of linear thermal expansion. The finding leads to an apparent paradox: the closer the U atoms are together in a particular direction the better they can be additionally compressed together by applied hydrostatic pressure.
JRC Institute:Institute for Transuranium Elements

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