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介绍了用等离子喷涂技术制备压电陶瓷涂层的工艺过程；用扫描电镜和Ｘ射线衍射仪分析了涂层的显微结构和相结构，测试了该涂层的压电应变常数；探讨了电弧电流对涂层成分、结构和电性能的影响。
The process of preparing piezoelectric ceramic coating by plasma spraying is introduced. The microstructure and phase structure of the coating are analyzed by scanning electron microscopy and X-ray diffraction. The piezoelectric strain constant of the coating is tested. Effect of current on coating composition, structure and electrical properties.