| 摘要 |
Ceramics comprising a crystal phase composed of a lithium-containing beta-quartz solid solution are treated with a strong acid to selectively remove lithium therefrom by a hydrogen-for-lithium ion exchange process. Heating of the resulting hydrogen-containing crystal phase drives off H2O and provides a ceramic product containing a previously unreported hexagonal aluminosilicate crystal phase, denominated aluminous quartz. Stuffed derivatives of aluminous quartz may also be provided.
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