等离子喷涂制备氧化锆陶瓷涂层的显微组织
Microstructure of ZrO2 Ceramics Coating Prepared by Plasma Spraying
摘 要
采用等离子喷涂方法制备了纳米氧化锆热障涂层,并对涂层的显微组织进行了分析。结果表明：涂层由熔化区和部分熔化区组成,涂层中含有较多的孔隙,其形貌主要为长条形和近球形,未发现有贯穿性孔洞，但有细小且无明显方向性的微裂纹;涂层中的纳米氧化锆颗粒熔化长大程度不同,部分颗粒长大成为微米级。
纳米氧化锆
陶瓷涂层
显微组织
plasma spraying
nanostructure ZrO2
ceramics coating
microstructure
Abstract
ZrO2 thermal barrier ceramics coating was prepared by plasma spraying with nano ZrO2 powder as raw material and microstructure of the coating was observed. The results show that the coating was composed of fusing area and half fusing area. Many pores were observed in the coating with the shape of stripe and subsphere,but no perfoliate pores were found. There were some tiny cracks which had no obvious direction. In the coating,the particles grow up to different degree and some of them were separated from a nano level to a micro level.
中图分类号 TB303
所属栏目 试验与研究
基金项目
收稿日期 2008/12/9
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备注朱海云(1982-),女,硕士研究生。
引用该论文: ZHU Hai-yun,SUN Hong-fei,LI Ye-chao. Microstructure of ZrO2 Ceramics Coating Prepared by Plasma Spraying[J]. Physical Testing and Chemical Analysis part A:Physical Testing, 2009, 45(8): 471～473
朱海云,孙宏飞,李业超. 等离子喷涂制备氧化锆陶瓷涂层的显微组织[J]. 理化检验－物理分册, 2009, 45(8): 471～473
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参考文献
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【7】孙玉娟,孙晓峰,金涛,等.大气等离子喷涂的YSZ纳米热障涂层的微观结构[J]. 金属学报,2003,39(4): 395-398.
【8】张红松,王富耻,马壮,等. 等离子涂层孔隙研究进展[J]. 材料导报,2006,20(7):16-18．
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