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Pressure-induced preferential grain growth, texture development and anisotropic properties of hot pressed hexagonal boron nitride ceramics
- Source :
-
Scripta Materialia . Dec2011, Vol. 65 Issue 11, p966-969. 4p. - Publication Year :
- 2011
-
Abstract
- Textured hexagonal boron nitride ceramics were prepared by hot pressing, using boron nitride powders as starting materials. The results showed that a high sintering temperature and moderate external pressure helped to form a textured microstructure when using boron nitride powder with a low degree of order and a broad particle size distribution. The flake-like boron nitride grains tended to orient along the hot pressing direction via pressure-induced preferential grain growth. The obtained textured boron nitride ceramics demonstrated strong anisotropic mechanical and thermal properties. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 13596462
- Volume :
- 65
- Issue :
- 11
- Database :
- Academic Search Index
- Journal :
- Scripta Materialia
- Publication Type :
- Academic Journal
- Accession number :
- 66664271
- Full Text :
- https://doi.org/10.1016/j.scriptamat.2011.08.025