TY - JOUR
T1 - Lattice anisotropy in uranium ternary compounds
T2 - UTX
AU - Maskova, S.
AU - Adamska, A.M.
AU - Havela, L.
AU - Kim-Ngan, NTH
AU - Przewoznik, J.
AU - Danis, S.
AU - Kothapalli, K.
AU - Kolomiets, A.V.
AU - Heathman, S.
AU - Nakotte, H.
AU - Bordallo, Heloisa N.
PY - 2012/5/5
Y1 - 2012/5/5
N2 - 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.
AB - 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.
U2 - 10.1016/j.jallcom.2012.01.122
DO - 10.1016/j.jallcom.2012.01.122
M3 - Journal article
SN - 0925-8388
VL - 522
SP - 130
EP - 135
JO - Journal of Alloys and Compounds
JF - Journal of Alloys and Compounds
ER -