The thermal behaviour of -anhydrite CaSO4 has been investigated to 1,263 K in-situ real-time using laboratory parallel-beam X-ray powder diVraction 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 signiWcant component along the z direction.

Thermal behaviour of β-anhydrite CaSO4 to 1,263 K / Ballirano, Paolo; Melis, Elisa. - In: PHYSICS AND CHEMISTRY OF MINERALS. - ISSN 0342-1791. - STAMPA. - 34:10(2007), pp. 699-704. [10.1007/s00269-007-0186-2]

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

BALLIRANO, Paolo;MELIS, ELISA
2007

Abstract

The thermal behaviour of -anhydrite CaSO4 has been investigated to 1,263 K in-situ real-time using laboratory parallel-beam X-ray powder diVraction 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 signiWcant component along the z direction.
2007
Anhydrite; CaSO4; Thermal behaviour; X-ray powder diffraction; Rietveld method
01 Pubblicazione su rivista::01a Articolo in rivista
Thermal behaviour of β-anhydrite CaSO4 to 1,263 K / Ballirano, Paolo; Melis, Elisa. - In: PHYSICS AND CHEMISTRY OF MINERALS. - ISSN 0342-1791. - STAMPA. - 34:10(2007), pp. 699-704. [10.1007/s00269-007-0186-2]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/39490
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