【摘要】 在大气中对复相Al2O3基陶瓷与钢进行了直接钎焊连接。采用扫描电镜、能谱分析和X射线衍射等测试手段,对接头的微观组织形貌、特征点的成分和界面反应产物等进行了分析研究。结果表明,在一定的工艺条件下,可以实现复相Al2O3基陶瓷/钢在大气中的直接钎焊连接。复相Al2O3基陶瓷/钢的接合为元素的扩散和界面反应的综合结果,界面反应产生的新相主要为复合化合物FeWO4。更多还原

【Abstract】 The Al₂O₃-based ceramic composite/steel joint by brazing in air was investigated. The interfacial microstructure, chemical composition and interfacial reaction were studied by scanning electron micrograph （SEM）, energy spectrum analysis （EDS） and X-ray diffraction （XRD）. The results indicate that Al₂O₃-based ceramic composite/steel could be directly brazed in air. The joint of Al₂O₃-based ceramic composite/steel resulted from element diffusion and interfacial reaction. The new reactive phase in interface was FeWO₄.更多还原