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Microwave sintering of AlN powder synthesized by a SHS method
- Source :
-
Journal of the European Ceramic Society . Jan2007, Vol. 27 Issue 1, p343-350. 8p. - Publication Year :
- 2007
-
Abstract
- Abstract: Sintering of the AlN powder synthesized by a combustion synthesis method, which was developed recently by the present authors, was studied by using a microwave sintering technique. A single mode microwave cavity was used and an insulation package with a simple configuration was developed. A high sintering temperature (1900°C or higher) and a stable and uniform heating were readily achieved. A temperature measurement technique using a thermocouple with extrapolation was established to obtain the sintering temperature. A percent theoretical density of 99.5% and a thermal conductivity of 186W/mK were obtained for a specimen which was sintered at 1900°C with a soaking time of 30min and 3wt.% of Y2O3 added. The effects of sintering aid (i.e., Y2O3) and sintering temperature on densification, microstructure and thermal conductivity of the sintered specimens were investigated. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 09552219
- Volume :
- 27
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- Journal of the European Ceramic Society
- Publication Type :
- Academic Journal
- Accession number :
- 22967672
- Full Text :
- https://doi.org/10.1016/j.jeurceramsoc.2006.03.003