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High temperature flow behaviour of SiC reinforced lithium aluminosilicate composites
Santanu Das V S R Murthy G S Murty
Composites Volume 24 Issue 2 April 2001 pp 215-218
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Fulltext
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Permanent link:
https://www.ias.ac.in/article/fulltext/boms/024/02/0215-0218 -
Keywords
Lithium aluminosilicate (LAS) ;SiC particulates ;flow behaviour ;compression. -
Abstract
The compressive flow behaviour of lithium aluminosilicate (LAS) glass, with and without SiC particulate reinforcements, was studied. The LAS glass crystallized to 𝛽 spodumene during high-temperature testing. The flow behaviour of LAS glass changed from Newtonian to non-Newtonian due to the presence of crystalline phase. Further, with the addition of 40 vol.% SiC additions, the strain rate sensitivity of flow stress decreased. While the activation energy for flow in LAS was 300 kJ/mole, it increased to 995 kJ/mole with the addition of 40 vol.% SiC reinforcements.
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Author Affiliations
Santanu Das1 V S R Murthy1 G S Murty1
- Department of Materials and Metallurgical Engineering, Indian Institute of Technology, Kanpur 208 016, India
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Dates
- Published
- April 2001
- Manuscript received
- 7 September 2000
- Manuscript revised
- 22 December 2000
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