Bimodal powder mixtures for the powder injection molding of SiC and A1N

摘要

In this paper, we studied the effect of nanoparticles addition on the green density and sintering of injection molded SiC and AlN. Using a bimodal powder mixture increased the solids loading for SiC and AlN systems, respectively. The nanoparticles addition also improved the sinterability of SiC and AlN by reducing the liquid phase formation to 1800 and 1500 °C, respectively. Around 99.3% density is obtained for bimodal μ-n AlN system when pressureless sintered at 1650 °C.