超音速等离子喷涂PZT涂层及其表征  

Preparation and characterization of PZT coatings sprayed by supersonic plasma spraying

作　　者：顾林松[1,2] 李国禄[1] 王海斗[2] 邢志国[2] 徐滨士[2] 

机构地区：[1]河北工业大学材料科学与工程学院,天津300130 [2]装甲兵工程学院装备再制造技术国防科技重点实验室,北京100072

出　　处：《粉末冶金材料科学与工程》2013年第4期560-565,共6页Materials Science and Engineering of Powder Metallurgy

基　　金：国家自然科学基金资助项目(51275526);国家重点基础研究发展规划(973计划)资助项目(2011CB013405);国家杰出青年科学基金资助项目(51125023);北京市自然科学基金重大项目(3120001)

摘　　要：采用超音速等离子喷涂法在45#钢片表面制备PZT(锆钛酸铅)陶瓷涂层,用扫描电镜(SEM)、共聚焦激光扫描显微镜(LEXT)、X射线衍射(XRD)、光电子能谱分析(XPS)和显微硬度仪对涂层的微观结构、成分和常规力学性能进行分析。结果表明:超音速等离子喷涂的PZT陶瓷涂层具有典型的层状结构,结构致密,涂层表面平整,气孔率低(1.6%),喷涂过程中PZT只有少量分解,涂层平均显微硬度为568.9 HV,涂层与基体结合良好,具备了制备智能压电陶瓷涂层以及在实际工况下应用的必要条件。PZT（Pb（Zrx Ti1 x）O3） coating was prepared by supersonic plasma spraying on 45#steel substrate.Microstructure morphology and phase composition of the coating were analyzed by SEM,XRD and XPS.Microhardness of the coating was also tested by microhardness test instruments.The results indicate that the coating has the typical laminate and densification structure with porosity of 1.6%,and the surface is smooth with average microhardness of 568.9 HV.A small amount of PZT is decomposed in the process of spraying,and the joint between coating and matrix is well.The coating fabricated by supersonic plasma spraying can obtain a good comprehensive performance,which meets the requirements for the making of intelligent piezoelectric coating.

关 键 词：超音速等离子 PZT（锆钛酸铅） 涂层 性能 

分 类 号：TB303[一般工业技术—材料科学与工程]