| 摘要: |
| 用等离子喷涂方法在45号钢基体表面制备了锆钛酸铅(PZT)陶瓷涂层，并用扫描电镜(SEM)、X射线衍射仪(XRD)、透射电镜（TEM）、纳米压痕测量仪和d33准静态测量仪等检测手段对涂层的微观形貌、成分、纳米硬度、弹性模量和压电常数等各项性能进行分析，并测量涂层的介电温谱。结果表明：等离子喷涂制备的PZT陶瓷涂层具有典型的层状结构，结构致密，孔隙率为1.96%；纳米硬度和弹性模量平均值分别为5.881 GPa和113.413 GPa；压电常数达到了74 pC/N，并且由介电常数与温度关系图可推知PZT的居里温度约为370 ℃。制备的PZT涂层性能良好，使其在实际工况中的使用成为可能。 |
| 关键词: 锆钛酸铅 等离子 涂层 |
| DOI：10.3969/j.issn.1007-9289.2014.04.003 |
| 分类号: |
| 基金项目: |
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| Preparation and Performance of PZT Coatings Sprayed by Plasma Spraying |
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SHI Weili, XING Zhiguo, WANG Haidou, LI Guolu, GU Linsong1,2,3
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1. School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130;2. Science and Technology on Remanufaturing Laboratory, Academy of Armored Forces Engineering, Beijing 100072;3. State Key Laboratory of Tribology, Tsinghua University, Beijing 100084
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| Abstract: |
| PZT piezoelectric ceramic coatings were prepared by plasma spraying on 45 steel substrate, then the microstructure morphology, phase composition and mechanical properties of the coatings were analyzed by scanning electron microscope (SEM), Xray diffraction (XRD), transmission electron microscope (TEM), nanoindentation tester and Belincourttype quasistatic d33 meter. The results show that PZT ceramic coatings by plasma spraying preparation have a typical lamellar structure, dense structure and low porosity; the surface of the PZT coatings were smooth, and characteristics of porosity is 1.96%. The average nanahardness and modulus of elasticity were 5.881 GPa and 113.413 GPa, respectively. The piezoelectric constant reaches 74 pC/N. Through dielectric constant and temperature diagram, the Curie temperature of PZT can be inferred to be about 370 ℃. The performance of the PZT coatings is good, so that the good effect can be acquired in actually working condition. |
| Key words: PZT plasma spraying coating |
