CAJ | 학술논문

根据机载、星载相控阵雷达T／R组件对壳体封装材料综合性能的要求，提出了一种具有梯度结构的硅铝封装材料设计思想，设计了具有不同梯度分布的材料研制方案，并对其进行仿真分析，以验证和优化这些研制方案。在此基础上，采用粉末冶金方法研制了一种具有三层结构的SiAl梯度材料。加工测试结果表明，由三层复合材料加工而成的壳体在满足与陶瓷基板热应力匹配的同时，具有良好的加工工艺性能。因此，采用梯度结构设计是解决复合材料在T／R组件封装壳体内应用难题的一种有效途径。
근거궤재、성재상공진뢰체T／R조건대각체봉장재료종합성능적요구，제출료일충구유제도결구적규려봉장재료설계사상，설계료구유불동제도분포적재료연제방안，병대기진행방진분석，이험증화우화저사연제방안。재차기출상，채용분말야금방법연제료일충구유삼층결구적SiAl제도재료。가공측시결과표명，유삼층복합재료가공이성적각체재만족여도자기판열응력필배적동시，구유량호적가공공예성능。인차，채용제도결구설계시해결복합재료재T／R조건봉장각체내응용난제적일충유효도경。
T/R modules of the satellite-borne and airborne phased array radars have strict requirement for per-formance of the packaging housing material. According to the requirement, a gradient design concept for SiAl matrix composites for electronic packaging housing is proposed in this paper and development programs for gra-dient material are designed. Meanwhile, FEM simulations are carried out to optimize and verify the programs. On this basis a three-layer gradient SiAl matrix composite is developed by the powder metallurgy method. The test results show that the housing made of the three-layer gradient material has good manufacture performancewhile matching well with the thermal stress of the ceramics substrate. Therefore, the gradient design is an ef- fective approach to resolving the difficult problem of SiAl matrix composites application to T/R module hous- ing.