Thermal behaviour of β-anhydrite CaSO4 to 1,263 K

被引：42

作者：

Ballirano, Paolo ^{[1
]}

Melis, Elisa ^{[1
]}

机构：

[1] Univ Roma La Sapienza, Dipartimento Sci Terra, I-00185 Rome, Italy

来源：

PHYSICS AND CHEMISTRY OF MINERALS | 2007年 / 34卷 / 10期

关键词：

anhydrite; CaSO4; thermal behaviour; X-ray powder diffraction; rietveld method;

D O I：

10.1007/s00269-007-0186-2

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

d The thermal behaviour of beta-anhydrite CaSO4 has been investigated to 1,263 K in-situ real-time using laboratory parallel-beam X-ray powder diffraction data. The cell parameters expanded anisotropically, the c axis being the "softest". This behaviour is due to the deformation of the CaO8 polyhedron. In fact the two longest, independent, Ca-O bond distances show a significant component along the z direction.

引用

页码：699 / 704

页数：6

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