Synthesis of Composite AIN Powder Mixed with Sintering Additives by the Lanxide Method
Lanxide技术合成含烧结助剂的复合AIN粉体

Composite AlN powder, mixed with the sintering additive Y_2O_3, was synthesized by the direct nitridation of molten Al-Mg-Y alloys. The character of products was determined by means of electron microscopy, X-ray diffraction, granularmetric analysis and chemical composition analysis etc. The results show that the nitridation rate of the raw alloys is higher, and the nitridation products are porous enough to be easily crushed. Composite AlN powder, obtained by the Lanxide method, has excellent characters such as high purity, especially low oxygen content, and narrow well-distributed grain size and so on.