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- Title
Self-reinforcement in li-α-sialon ceramics.
- Authors
Yu, Z. B.; Thompson, D. P.; Bhatti, A. R.
- Abstract
Self-reinforcement of Li-α-sialon ceramics by in situ growth of elongated α and β-sialon grains has been explored and analysed. Properties of Li-α-sialon ceramics are mainly determined by the overall starting composition and the crystalline modification of the starting Si3N4 powder which in turn determine the final microstructure of the materials. Both the morphology and crystalline phase of the elongated sialon grains have strong effects on the toughening mechanism. The results indicate that α-sialons reinforced by elongated β-sialon grains have advantages over similar materials reinforced by elongated α-sialon grains because of the type of crack deflection toughening mechanism involved.
- Subjects
CERAMICS; MORPHOLOGY; MICROSTRUCTURE; CRYSTALLIZATION; RESIDUAL stresses
- Publication
Journal of Materials Science, 2001, Vol 36, Issue 14, p3343
- ISSN
0022-2461
- Publication type
Article
- DOI
10.1023/A:1017931222150