Evaluating microhardness of plasma sprayed al2o3 coatings using vickers indentation technique
文献类型：期刊论文
| 作者 | Yin, Zhijian; Tao, Shunyan; Zhou, Xiaming; Ding, Chuanxian |
| 刊名 | Journal of physics d-applied physics
 |
| 出版日期 | 2007-11-21 |
| 卷号 | 40期号:22页码:7090-7096 |
| ISSN号 | 0022-3727 |
| DOI | 10.1088/0022-3727/40/22/034 |
| 通讯作者 | Tao, shunyan(shunyantao@mail.sic.ac.cn) |
| 英文摘要 | In this work, the microhardness of plasma sprayed al2o3 coatings was evaluated using the vickers indentation technique, and the effects of measurement direction, location and applied loads were investigated. the measured data sets were then statistically analysed employing the weibull distribution to evaluate their variability within the coatings. it was found that the vickers hardness (vhn) increases with decreasing applied indenter load, which can be explained in terms of kick's law and the meyer index k of 1.93, as well as relating to the microstructural characteristics of plasma sprayed coatings and the elastic recovery taking place during indentation. in addition, vhn, measured on the cross section of coatings, was obviously higher than that on its top surface. the obtained weibull modulus and variation coefficient indicate that the vhn was less variable when measured at a higher applied load and on the cross section of coating. the obvious dependence of the vhn on the specific indentation location within through-thickness direction was also realized. these phenomena described above in this work were related to the special microstructure and high anisotropic behaviour of plasma sprayed coatings. |
| WOS关键词 | THERMAL SPRAY ; ZIRCONIA COATINGS ; BEHAVIOR ; MODULUS |
| WOS研究方向 | Physics |
| WOS类目 | Physics, Applied |
| 语种 | 英语 |
| WOS记录号 | WOS:000250606200036 |
| 出版者 | IOP PUBLISHING LTD |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2382684 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Tao, Shunyan |
| 作者单位 | 1.Chinese Acad Sci, Shanghai Inst Ceram, Key Lab Inorgan Coating Mat, Shanghai 200050, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yin, Zhijian,Tao, Shunyan,Zhou, Xiaming,et al. Evaluating microhardness of plasma sprayed al2o3 coatings using vickers indentation technique[J]. Journal of physics d-applied physics,2007,40(22):7090-7096. |
| APA | Yin, Zhijian,Tao, Shunyan,Zhou, Xiaming,&Ding, Chuanxian.(2007).Evaluating microhardness of plasma sprayed al2o3 coatings using vickers indentation technique.Journal of physics d-applied physics,40(22),7090-7096. |
| MLA | Yin, Zhijian,et al."Evaluating microhardness of plasma sprayed al2o3 coatings using vickers indentation technique".Journal of physics d-applied physics 40.22(2007):7090-7096. |
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来源：中国科学院大学
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