Low-temperature phase transformation in NaBH4 under pressure

被引：29

作者：

Sundqvist, B ^{[1
]}

Andersson, O ^{[1
]}

机构：

[1] Umea Univ, Dept Phys, S-90187 Umea, Sweden

来源：

PHYSICAL REVIEW B | 2006年 / 73卷 / 09期

关键词：

D O I：

10.1103/PhysRevB.73.092102

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The pressure-temperature structural phase diagram of NaBH4 has been mapped by thermal conductivity measurements below room temperature and up to 2 GPa. The critical transition temperature for the transformation from the low-temperature tetragonal structure to the room temperature cubic one increases from near 190 K at zero pressure to about 235 K at 2 GPa. The thermal conductivity data are consistent with the order-disorder character of the transition.

引用

页数：3

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