热压ZTM/SiCp陶瓷复合材料活性氧化的初步研究

THE PRIMARY STUDY ON THE ACTIVE-OXIDATION OF HOT-PRESSED ZTM/SiCp CERAMIC COMPOSITE

研究了在氧含量较低的条件下，热压ZTM／SiCP陶瓷复合材料活性氧化的问题，结果显示：在活性氧化的过程中，材料表面的形貌随氧化温度的升高而变化，最终形成非保护性的氧化膜：活性氧化程度随氧化温度的升高而加剧，造成材料内部结构的损伤，使材料的力学性能大幅度下降。

The active-oxidation of hot-pressed ZTM/SiCp ceramic composito under condition of lower oxygen contentwas studied. The esults showed: The surface morphologies changed with the oxidative temperature increasing duringthe active-oxidation, the unprotective oxidative-film was formed at last. The degree of active- oxidation increasedwith the active - oxidation temperature, which damaged the inner structure of material and reduced the mechanicalproperties greatly.