张红松,刘振启,关绍康.等离子喷涂纳米与微米YSZ热障涂层的孔隙结构比较[J].表面技术,2010,39(5):4-7
等离子喷涂纳米与微米YSZ热障涂层的孔隙结构比较
Comparison of Pore Structure between Plasma-sprayed Nano-YSZ and Micron-YSZ Thermal Barrier Coatings
投稿时间:2010-01-27  修订日期:2010-10-10
DOI:
中文关键词:  等离子喷涂  热障涂层  孔隙结构  定量分析
英文关键词:plasma spray  thermal barrier coatings  pore structure  quantitative analysis
基金项目:河南省教育厅自然科学基金项目(2008B430003);河南工程学院博士基金项目(D2007012)资助
作者单位
张红松 1.郑州大学材料科学与工程学院,郑州450001;2.河南工程学院机械工程系,郑州450007 
刘振启 郑州铁路局机车车辆厂,郑州450000 
关绍康 郑州大学材料科学与工程学院,郑州450001 
AuthorInstitution
ZHANG Hong-song 1.School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China;2.Department of Mechanical Engineering, Henan Institute of Engineering, Zhengzhou 450007, China 
LIU Zhen-qi Factory of Locomotive Grolling Stock of Zhengzhou Railway Bureau, Zhengzhou 450000, China 
GUAN Shao-kang School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China 
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中文摘要:
      采用定量分析技术,分析了相同等离子喷涂工艺制备的微米及纳米YSZ热障涂层的孔隙结构,结果表明:纳米涂层的孔隙率低于微米涂层;两涂层的孔隙大小和形状分布规律相似,纳米涂层以直径在1~ 10μm之间的孔隙含量最多,而微米涂层则以直径大于10μm的孔隙比例最大;纳米YSZ涂层中等轴孔隙含量明显大于微米YSZ涂层。这些结果说明,粉末尺寸对等离子喷涂热障涂层的孔隙结构有着明显的影响。
英文摘要:
      Pore structure of plasma-sprayed nano-YSZ and micron-YSZ thermal barrier coatings prepared at the same technological parameters were analyzed by quantitative analysis technology. Results show that the porosity of nanoYSZ coating is lower than that of micron-YSZ coating. The size and shape of pores in these two coatings have resemble probability distribution. Pores whose diameter is between 1μm and 10μm micrometer have the greatest percentage in nano-YSZ coating. However, pores whose diameter is greater than 10μm have the greatest percentage in micron-YSZ coating. Percentage of pores with same axes in nano-YSZ coating is greater than that of micron-YSZ coating apparently. These results imply that size of powders have prominent effect on pore structure of plasma-sprayed thermal barrier coatings.
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