在热电转换发电系统中使用铜 (传热板 ) /氧化铝 (绝缘板 )构件往往由于热应力而引起破裂。因此 ,根据烧结的Ａｌ2 Ｏ3/Ｃｕ复合材料残余应力场的有限元分析数据并对照其静态断裂强度的测试结果 ,研制了具有适宜组成梯度分布的梯度功能材料。研究用的Ａｌ2 Ｏ3 粉平均粒径为 0 The use of copper (heat transfer plate) / alumina (insulating plate) members in thermoelectric conversion power generation systems tends to cause cracking due to thermal stress. Therefore, based on the finite element analysis data of the residual stress field of the sintered Al 2 O 3 / Cu composite material and the comparison of the static rupture strength of the sintered Al 2 O 3 / Cu composite materials, a gradient functional material with a suitable compositional gradient distribution was developed. The average particle size of Al 2 O 3 powder used in the study was 0