功能梯度材料的研究进展及应用前景

The research development and future application of functionally gradient materials

功能梯度材料(FGM)是一种新型的功能材料,构成梯度功能材料的化学构成、微观结构和原子排列由一侧向另一侧呈连续梯度变化,从而使材料的性质和功能连续地呈梯度变化。文章综述了功能梯度材料的概念,制备工艺和国内外的研究现状,并展望了未来的应用前景。

Functional gradient material（FGM）is a new kind of nonhomogeneous composite. According to the design concept of FGM, its chemical composition, microstructure and atomic order vary gradent- ly and continuously from one side to another,therefore its propery and funtion vary gradully along the line of thickness. The concept and preparation of functionally gradient material are introduced The re- search development on FGM is disscussed and the propspects of FGM are presented.