| 等离子喷涂纳米氧化锆涂层组织结构研究 |
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| 引用本文： | 柳彦博,王全胜,王富耻,马壮,李东荣.等离子喷涂纳米氧化锆涂层组织结构研究[J].表面技术,2005,34(2):24-26. |
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| 作者姓名： | 柳彦博 王全胜 王富耻 马壮 李东荣 |
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| 作者单位： | 北京理工大学材料科学与工程学院,北京,100081;北京理工大学材料科学与工程学院,北京,100081;北京理工大学材料科学与工程学院,北京,100081;北京理工大学材料科学与工程学院,北京,100081;北京理工大学材料科学与工程学院,北京,100081 |
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| 摘 要： | 采用三因素三水平正交实验设计法针对喷涂电流、主气(Ar)流量和次气(He)流量三个重要工艺参数安排实验方案,采用大气等离子喷涂方法制备纳米氧化锆涂层试样,通过扫描电镜观察并分析了喷涂工艺对涂层组织结构的影响,结果表明,涂层组织结构主要由两部分组成,即常规柱状组织和纳米状等轴组织,且等轴组织处于柱状组织的包围之中;随喷涂工艺不同,两部分组织含量存在明显差别.对于热障涂层而言,等轴组织对提高涂层隔热能力有利.
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| 关 键 词： | 热障涂层 纳米氧化锆 涂层组织 工艺优化 |
| 文章编号： | 1001-3660(2005)02-0024-03 |
Research on the Structure of Nanostructured Zirconia Coatings Deposited by Plasma Spraying |
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| LIU Yan-bo,WANG Quan-sheng,WANG Fu-chi,MA Zhuang,LI Dong-rong.Research on the Structure of Nanostructured Zirconia Coatings Deposited by Plasma Spraying[J].Surface Technology,2005,34(2):24-26. |
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| Authors: | LIU Yan-bo WANG Quan-sheng WANG Fu-chi MA Zhuang LI Dong-rong |
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| Abstract: | Three parameters of plasma spraying are optimized by orthogonal experiment design. The coatings of specimens are deposited with nanostructured zirconia by plasma spraying. The coatings are observed by scanning electron microscope. There are two kinds of structures in the coatings: column structure and equal-axis structure. The equal-axis structure is surrounded by column structure. The proportions of two structures are different for different spray parameters. The equal-axis structure is profitable to thermal insulate ability of zirconia coatings. |
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| Keywords: | Thermal barrier coatings Nanostructured zirconia Structure of coatings Process optimization |
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