【摘要】 功能梯度材料(FGM)是一种新型的复合材料,文章综述了其特征和性能及其热——机械理论分析的研究进展,其中包括一维稳态温度场的精确解、动态热载作用下的复合材料层合板模型、热载作用下的裂纹问题。并综述了功能梯度材料目前常采用的一些制备方法及使用情况,其中包括火花等离子烧结技术、粉末冶金法及离子结构工艺等,从而预见其具有很好的发展前途。更多还原

【Abstract】 The functionally graded material( FGM) is a new kind of compound materials . The character and capability of this material are summarized. The research status of its thermal-mechanical theory is described, including the exact solution of one dimensional steady temperature field,the laminate model of composite materials under unsteady heating and the crack problem under due to heating. Some preparation methods of the FGM are introduced,including the spark plasma sintering technology, the powder metallurgical method and the plasma structure process. The development future of the FGM is considered to be good.更多还原