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金属表面涂敷陶瓷而形成的复合材料,是一种兼有陶瓷的高耐热、耐蚀、耐磨性能和金属的高韧性的优良材料。因此它可用于极严酷的高温、腐蚀环境中,作为燃汽轮机和核溶炉炉壁材料。然而,表面复合材料由于其表面材料的热膨胀率等物理特性与基体材料不同,陶瓷与金属基体的粘合性很差,陶瓷膜极易破裂。故往往从材料粘合界面破坏。日本科技厅金属表面材料研究所对在高温真空条件下金属表面成份的变化进行了研究,在研究过程中发现,随着实验条件的
The composite material formed by coating ceramic on the metal surface is an excellent material that combines the high heat resistance, corrosion resistance, wear resistance and high toughness of the ceramic. Therefore, it can be used in very harsh high temperature, corrosive environment, as a gas turbine and furnace wall material. However, due to its physical properties such as thermal expansion coefficient of the surface material, the surface composite material is different from the matrix material, the adhesion between the ceramic and the metal matrix is poor, and the ceramic film is easily broken. It is often damaged from the material bonding interface. Japan’s Ministry of Science and Technology Institute of metal surface materials under high temperature and vacuum conditions, changes in the composition of the metal surface were studied in the course of the study found that with the experimental conditions