Transformations of the stuffed cristobalites, K2MSiO4, M=Mg, Zn, Co, Cd, with temperature and composition

Transformations of the stuffed cristobalites, K2MSiO4, M=Mg, Zn, Co, Cd, with temperature and composition

Abstract The effects of composition and of temperature on the orthorhombic, Pca21 to cubic, F4¯3m transition of the stuffed cristobalite structure are reported. A distorton index which measures the departure of the orthorhombic unit cell from a metrically cubic cell shows that at room temperature, d...

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Veröffentlicht in:Physics and chemistry of minerals 1998-05, Vol.25 (5), p.389-392
1. Verfasser: Dollase, W A
Format: Artikel
Sprache:eng
Schlagworte:
Cadmium
Calorimetry
Composition effects
Cristobalite
Distortion
Enthalpy
High temperature
Magnesium
Transformations
Unit cell
Zinc
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Zusammenfassung:Abstract The effects of composition and of temperature on the orthorhombic, Pca21 to cubic, F4¯3m transition of the stuffed cristobalite structure are reported. A distorton index which measures the departure of the orthorhombic unit cell from a metrically cubic cell shows that at room temperature, distortion increases in the progression K2CdSiO4
ISSN:0342-1791
1432-2021
DOI:10.1007/s002690050128