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无机材料学报

无机材料学报

• 研究论文 • 上一篇    下一篇

纳米ZrO2等离子涂层的结构,性能和工艺特点

陈煌; 周霞明; 黄民辉; 陶顺衍; 丁传贤   

  1. 中国科学院上海硅酸盐研究所 上海 200050
  • 收稿日期:2002-06-26 修回日期:2002-08-02 出版日期:2003-07-20 网络出版日期:2003-07-20

Structure, Property and Processing Characterization of Plasma Sprayed Nanostructured Zirconia Coating

CHEN Huang; ZHOU Xia-Ming; HUANG Min-Hui; TAG Shun-Yan; DING Chuan-Xian   

  1. Shanghai Institute of Ceramics; Chinese Academy of Sciences; Shanghai 200050; China）
  • Received:2002-06-26 Revised:2002-08-02 Published:2003-07-20 Online:2003-07-20

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摘要： 采用大气等离子喷涂技术(APS),制备了常规氧化锆和纳米结构氧化锆两种涂层。利用扫描电镜(SEM)对涂层的显微结构进行了观察。对两种涂层的沉积效率、表面粗糙度和显微硬度作了对比研究。结果表明,粉末原料的显微结构、粒度、形态、喷涂工艺参数(喷涂功率和距离)对涂层的显微结构有较大的影响。等离子喷涂造粒纳米氧化锆粉制备的涂层沉积效率高而稳定,其显微结构与喷涂功率和距离密切相关。与常规氧化锆涂层相比,纳米结构氧化锆涂层具有较高的显微硬度和较低的表面粗糙度。

关键词: 等离子喷涂, 氧化锆涂层, 喷涂工艺, 显微结构

Abstract: The nanostructured and conventional ZrO2 coatings were deposited by atmospheric plasma spraying
technique (APS). The influence of the grain size and shape of feedstock and spraying parameters on the ZrO2 coating was examined. The deposition
efficiency, roughness and Vikers microhardness of two kinds of ZrO2 coatings were measured. The obtained results reveal that the nanostructured ZrO2 coating possesses high and stable deposition
efficiency, more uniform microstructure, higher Vikers microhardness and lower roughness than that of conventional ZrO2 coating.

Key words: plasma spraying, zirconia coating, spraying parameters, microstructure

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