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Metastable phase formation in the early stage crystallisation of lithium disilicate glass
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UNSPECIFIED (1998) Metastable phase formation in the early stage crystallisation of lithium disilicate glass. JOURNAL OF NON-CRYSTALLINE SOLIDS, 224 (1). pp. 1-16. ISSN 0022-3093
Full text not available from this repository.Abstract
Early stage crystallisation behaviour of binary lithium disilicate [LS2] glass containing 33.91 mol% Li2O has been investigated. Two metastable crystalline phases, alpha'- and beta'-LS2 precipitated prior to crystallisation of stable lithium disilicate in samples heat treated at 454 +/- 1 degrees C for 120-480 h. Metastable alpha' and beta'-LS2 phases transformed to stable LS2 after extended holds (similar to 551 h) at 454 degrees C, The broader Si-29 MAS-NMR crystalline peaks in samples nucleated for > 228 h at 454 degrees C, than those of samples crystallised at 600 degrees C, indicate the presence of multiple polymorphs or a disordered structure in the former samples. The streaking of some of the spots observed in electron diffraction patterns from beta'-LS2 crystals is consistent with this observation. (C) 1998 Elsevier Science B.V.
| Item Type: | Journal Article |
|---|---|
| Subjects: | T Technology > TP Chemical technology T Technology > TA Engineering (General). Civil engineering (General) |
| Journal or Publication Title: | JOURNAL OF NON-CRYSTALLINE SOLIDS |
| Publisher: | ELSEVIER SCIENCE BV |
| ISSN: | 0022-3093 |
| Date: | February 1998 |
| Volume: | 224 |
| Number: | 1 |
| Number of Pages: | 16 |
| Page Range: | pp. 1-16 |
| Publication Status: | Published |
| URI: | http://wrap.warwick.ac.uk/id/eprint/15941 |
Data sourced from Thomson Reuters' Web of Knowledge
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