| Autor: |
Schröpfer, Lothar, Bartl, Hans |
| Zdroj: |
European Journal of Mineralogy; November 1993, Vol. 5 Issue: 6 p1133-1144, 12p |
| Abstrakt: |
Abstract Dehydration and rehydration experiments were carried out using synthetic single crystals of tricalcium- aluminate-hexahydrate and dodecacalcium-heptaaluminate; the structure and orientation of the run products were investigated by X-ray diffraction and thermoanalytical methods (TG, DTG and DSC). A new Al-rich intermediate hydrogarnetoid phase with Al in both six-fold and four-fold coordination was discovered and then prepared by topotactic hydroxylation of the Ca-aluminate 12CaO-7Al2O3·5H2O, space group no. 230, Ia3d, a0 = 12.374(6)Å, Z = 2. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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