The method comprises: (1) sintering aluminumnitrideceramic at a low temperature by plasma-discharging sintering;
该方法主要包括三个部分：（1）利用放电等离子 烧结技术实现氮化铝陶瓷的较低温度烧结；
2
The method solves the problem of poor bonding between Cu and aluminumnitrideceramic, and can realize preparation of gradient composite with high temperature difference and poor compatibility.
The invention relates to a nitridation sintered aluminum titanate-silicon nitride composite material and preparation method thereof, belonging to the ceramic material field.