采用分步快速脱脂曲线，PW-EVA-HDPE粘结剂有序地分为三步脱除，首先是熔点最低的Pw在350℃脱除，然后升温至420℃脱除EVA，最后在500℃脱除HDPE。PW-EVA-HDPE多组元粘结剂热脱脂主要分为初期孔隙通道形成期、孔隙通道形成后剩余PW脱除期及后期剩余EVA和HDPE脱除期。其中孔隙通道形成期和连通孔隙通道形成后剩余PW脱除期的动力学控制因素为液相扩散，即Pw的热分解气体Vpw在聚合物熔体中的扩散。

Ti'/AI203 Functionally Gradient Material (FGM) was prepared by an explosive compaction/SHS process. Ten sheets of the compounding powder were laminated and pressed to get a green body of FGM. It was then compacted explosively. By burying the explosive compaction body into a stoichiometric AI/TiO2 mixture and igniting the combustion of the stoichiometric AI/TiO2 mixture, the SHS reaction of the explosive compaction body was initiated by the heat released from the combustion of the stoichiometric AI/TiO2 mixture. In this way, Ti/AI203 FGM was synthesized. The adiabatic temperatures of each gradient layer were calculated when the pre-heating temperatures were 298 K and 1173 K, respectively. The microstructure, composition and properties of Ti/AI203 FGM and the reaction mechanism of each gradient layer were studied. It was found that Ti/AI203 FGM prepared by the explosive cornpaction/SHS process had a high density and a high microhardness. Its structure, composition and properties showed apparent gradient distribution. The structure of the standard stoichiometric ratio gradient layer of FGM was a network structure. Its reaction mode could be described as follows: AI powder melted first, then the molten AI penetrated into the TiO2 zone and reacted with TiO2, and big pores were left in the original positions of AI powder. The reaction of gradient layers with the addition of AI203 as diluents was similar to that of the standard stoichiometric ratio gradient layer, so were their structure and composition. However, the reaction of gradient layers with the addition of Ti as diluents was more complex and the composition deviated slightly from the designed one.