Thermal behaviour of β-anhydrite CaSO4 to 1,263 K
Autor: | Elisa Melis, Paolo Ballirano |
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Rok vydání: | 2007 |
Předmět: | |
Zdroj: | Physics and Chemistry of Minerals. 34:699-704 |
ISSN: | 1432-2021 0342-1791 |
DOI: | 10.1007/s00269-007-0186-2 |
Popis: | The thermal behaviour of β-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. |
Databáze: | OpenAIRE |
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