功能梯度材料（ＦＧＭ）是近十几年发展起来的一种新型材料，它的概念可以表示为“在空间中由一种功能向其它功能连续变化的整体材料”，即：它不是指特定的物性和材料构成，而是表示功能的构成．功能梯度材料由最初的耐热材料到半导体材料、光学材料和生物材料，范围相当广泛 Functional Gradient Materials (FGM) is a new type of material developed in recent ten years. Its concept can be expressed as “a monolithic material continuously changing from one function to another in space”, that is, it does not refer to a specific Physical properties and material composition, but that the composition of the function. Functionally graded materials from the initial heat-resistant materials to semiconductor materials, optical materials and biological materials, a very wide range