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Microstructure and properties of spodumene based Li-Si-Al-O-N glass ceramics
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UNSPECIFIED (1997) Microstructure and properties of spodumene based Li-Si-Al-O-N glass ceramics. BRITISH CERAMIC TRANSACTIONS, 96 (4). pp. 141-148. ISSN 0967-9782.
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Abstract
Glasses and glass ceramics in the Li-Si-Al-O-N system were prepared using a natural mineral resource, and the microstructures and mechanical and thermal properties examined. The dominant phases that formed in the Li oxynitride glass ceramics were beta-quartz(ss) and beta-spodumene(ss), and these were believed to develop with equiaxed and acicular grain morphologies respectively. Silicon oxynitride Si2N2O and X-phase Si3Al6O12N2 formed as minor phases. Nanoindentation was used to assess the hardness and elastic moduli of the Li-Si-Al-O-N materials and both parameters were observed to increase with increasing nitrogen content. Thermal expansion measurements revealed that the low expansion characteristics of mineral derived beta-quartz(ss) and beta-spodumene(ss) were generally retained when nitrogen was introduced into the Li2O-Al2O3-SiO2 system. (C) 1997 The Institute of Materials.
Item Type: | Journal Article | ||||
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Subjects: | T Technology > TP Chemical technology | ||||
Journal or Publication Title: | BRITISH CERAMIC TRANSACTIONS | ||||
Publisher: | INST MATERIALS | ||||
ISSN: | 0967-9782 | ||||
Official Date: | 1997 | ||||
Dates: |
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Volume: | 96 | ||||
Number: | 4 | ||||
Number of Pages: | 8 | ||||
Page Range: | pp. 141-148 | ||||
Publication Status: | Published |
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