中文摘要：

用热压的方法合成了若干MAX相化合物，包括211相（Ti2AlC和Ti2A1N）和312相（Ti2SiC2和Ti2AlC2）；研究了它们在1mol／LHCl、1mol／LNaOH和1mol／LH2SO4中的电化学性质及其结构与其稳定性的关系．结果表明：在所有溶液中，312型MAX相比211相更稳定；Ti3SiC2和Ti3A1C2几乎在所有溶液里都发生钝化，而Ti2A1C和Ti2A1N在1mol／LHCl中活跃地溶解，还伴有大量气泡产生；Ti3SiC2比Ti2A1C、Ti2A1N和Ti3A1C2更稳定．

英文摘要：

Electrochemical performance was characterized in solutions of 1 mol/L HCl, 1 mol/L NaOH and 1 mol/L HzSO4 of several compounds of MAX phase i. e. 211phase （Ti2AlC and Ti2AlN） and 312 phase （Ti3SiC2 and Ti3AlC2 ）synthesized by hot pressing. The relation between the structure of MAX phase compounds and their stability was studied in regarding to their electrochemical behavior. It is shown that MAX compounds of 312 phase was more stable than that of 211 phase in all solutions;Ti3SiC2 and Ti3AlC2 could be passivated in all solutions,while Ti2AlC and Ti2AlN underwent active dissolution in 1 mol/L HCl with evolution of gas;Yi3SiC2 was more stable than those of Ti2AlC,Ti2AlN and Ti3AlC2.