Crystallization Behavior of Al2O3 in the Presence or SiO2 |
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| Authors: | Akshoy Kumar Chakravorty Dilip Kumar Ghosh |
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| Affiliation: | Central Glass and Ceramic Research Institute, Calcutta 700 032, India |
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| Abstract: | The independent crystallization sequence of an Al2O3 component is modified in the presence of SiO2 and vice versa. Mixed SiO2-Al2O3, gel (28 wt% SiO2 and 72 wt% Al2O3) forms neither cristobalite nor γ-Al2O3 and corundum at 1000°C but forms Si-Al spinel; an amorphous aluminosilicate phase invariably also forms after the gel is heated. However, the composition of this amorphous aluminosilicate phase is not as yet known. |
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