PRESSURE-INDUCED PHASE-TRANSITION IN ALPHA-PU
PRESSURE-INDUCED PHASE-TRANSITION IN ALPHA-PU
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DOI：
10.1016/0925-8388(93)90404-b
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发表时间：
1993-01-11
影响因子：
6.2
通讯作者：
BENEDICT, U
中科院分区：
文献类型：
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作者：
DABOSSEIGNON, S;DANCAUSSE, JP;BENEDICT, U
在62 GPa压力下用金刚石对顶砧装置对高纯α-钚进行了X射线衍射研究。在40 GPa附近发生结构相变。高压结构在空间群P6（3）/m的六方晶格中索引，在62 GPa，Z = 8时a = 537.77 pm，c = 445.51 pm。α-Pu的体积模量B 0被确定为43（2）GPa，压力导数B 0 ' = 15（2）。
High Purity alpha-Pu was studied by X-ray diffraction in a diamond anvil cell up to 62 GPa. A structural phase transition occurs around 40 GPa. The high pressure structure was indexed in a hexagonal lattice of space group P6(3)/m, a = 537.77 pm, c = 445.51 pm at 62 GPa, Z = 8. The bulk modulus B0 of alpha-Pu was determined as 43(2) GPa, with a pressure derivative B0' = 15(2).