The mixture of Ti4AlN3 and Cu was used to produce a new type of high-performance ceramic.The manufacturing process of this mixture involved uniformly mixing Cu powder and other raw material powders(including Ti powder,Al powder,and Tin powder)using three-dimensional ball milling technology,and then converting it into Cu/Ti4AlN3 composite ceramics using vacuum hot pressing sintering process.Finally,the orthogonal design method was used to optimize the synthesis of high-purity Ti4AlN3 bulk materials.The experimental results showed that the optimal process was as follows:n(Ti)∶n(Al)∶n(TiN)∶n(Cu)=1∶1.6∶3.1∶0.5,sintering temperature 1 400℃,applied pressure 25 MPa,and holding time 2 h.
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