High-pressure study of hcp-argon

被引：27
|
作者：
Wittlinger, J
Fischer, R
Werner, S
Schneider, J
Schulz, H
机构：
[1] Inst. Kristal. und Angew. Mineral., Universität München, 80333 München
来源：
ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE | 1997年 / 53卷
关键词：
D O I：
10.1107/S0108768197005739
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Argon, used as pressure medium in high-pressure experiments, crystallizes in a hexagonal close-packed structure when the argon is loaded cryogenically in the diamond anvil cell. The behaviour under pressure reveals elastic properties comparable to that of f.c.c. argon (f.c.c. = face-centred cubic). The bulk modulus is 6.5 (1.3) GPa. The initially good quality of the individual crystals suffers strongly under pressure increase. Heating the cell to 393 K at 8.5 GPa recreates the crystal structure, accompanied by a pressure decrease of more than 1 GPa.
引用
收藏
页码：745 / 749
页数：5
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