| | 1 | Author
| Rolf-Rüdiger Krüger, W. Alter, Abriel | Requires cookie* | | | Title
| Über das Hochdruckverhalten von Gips On the Behaviour of Gypsum under High Pressure  | | | | Abstract
| The decom position o f gypsum (dehydration) was studied in the pressure range 7 .5 -6 0 kbar and the temperature range 7 5 -4 0 0 °C using a belt type apparatus. Surprisingly, gypsum is rather stable even at pressures greater than 20 kbar contradicting the results o f a calculation o f the space requirement o f the competing phases (A I I -C a S 0 4 + H-,0; Hemihydrate + H20). Only when rising the temperature, as the most important thermodynamic variable for this reaction, the kinetically controlled decomposition starts. N o acceleration o f the dehydration process under shear stress (simple squeezer device) could be detected due to the limited (not geological) time. | | | |
Reference
| Z. Naturforsch. 45b, 1221—1226 (1990); eingegangen am 27. Februar 1990 | | | |
Published
| 1990 | | | |
Keywords
| Gypsum, Hydrates, High-Pressure, D ecom position | | | |
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| default:Reihe_B/45/ZNB-1990-45b-1221.pdf | | | | Identifier
| ZNB-1990-45b-1221 | | | | Volume
| 45 | |
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