Study on Preparation of Homogenized Highly Dispersible AlON Powder

Abstract The quality of Aluminum oxynitride (AlON) powder is the main factor affecting properties ceramics. To accurately control nitrogen AlON content and improve dispersion degree powder, was prepared from γ-Al 2 O 3 activated carbon by carbothermic reduction nitridation. uniformity distribution raw materials dimension microstructure controlled changing time rotation rate ball milling process. influences process parameters on Al /C mixed microstructure, particle size were studied. results show that agglomeration effectively reduced, material increased controlling has good uniform with roller for 24 h. After holding at 1700 °C 60 min, homogenized obtained, residual about 0.04 wt%. When planetary 250 rpm 16 h, highly dispersible obtained.