2006 Volume 114 Issue 1326 Pages 220-223
Consolidation of SiC powder with stacking disordered structure was accelerated by milling with the AlN as the additive. SiC powders without the additive were sintered at 1900°C to a density of 99%. The grain size of the sintered material was approximately 500 nm. On the other hand, with AlN as additive, the sintering temperature to reach a density of 98% was reduced to 1700°C by the addition of 1.0 mol% AlN. The grain size of this material was approximately 50 nm. The effect of AlN addition on SiC sintering with disorder-order transformation was evaluated by shrinkage profile, XRD analysis, and TEM observation.
