Phase transformation and bond coat oxidation behavior of EB-PVD thermal barrier coating
文献类型：期刊论文
| 作者 | M. H. Li ; X. F. Sun ; S. K. Gong ; Z. Y. Zhang ; H. R. Guan ; Z. Q. Hu |
| 刊名 | Surface & Coatings Technology
 |
| 出版日期 | 2004 |
| 卷号 | 176期号:2页码:209-214 |
| 关键词 | thermal barrier coating electron beam physical vapor deposition bond coat oxidation phase transformation partially-stabilized zirconia system |
| ISSN号 | 0257-8972 |
| 中文摘要 | Thermal barrier coating, consisting of an electron beam physical vapor deposited partially stabilized zirconia (PSZ, 7 wt.%Y2O3) and a sputtered NiCrAlY bond coat, was investigated by thermal cycling at 1050 degreesC in air. Experimental characterization was conducted using X-ray diffraction analysis and scanning electron microscopy equipped with energy dispersive analytical Xray spectroscopy The lattice parameters of the tetragonal phase were determined as a function of thermal cycles. It was found that the c/a ratio increases with thermal cycling, correspondingly to a decrease in the content of Y2O3 of the tetragonal phase. The nonequilibrium tetragonal phase (T') of the PSZ slowly decomposed to tetragonal phase with relatively low Y2O3 content and cubic phase. After 300 cycles small amount of monoclinic phase was observed, which resulted from the tetragonal to monoclinic phase transformation during cooling. AI,03 formed preferentially along the bond and top coat interface. After 200 cycles the thermally grown oxide (TGO) was very thin and consisted of only Al2O3. With Al-depletion in the bond coat, internal oxidation occurred and some other oxides such as NiO and Ni(Cr,Al)(2)O-4 spinels were observed in the TGO near the bond coat. (C) 2003 Elsevier Science B.V. All rights reserved. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/35411]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | M. H. Li,X. F. Sun,S. K. Gong,et al. Phase transformation and bond coat oxidation behavior of EB-PVD thermal barrier coating[J]. Surface & Coatings Technology,2004,176(2):209-214. |
| APA | M. H. Li,X. F. Sun,S. K. Gong,Z. Y. Zhang,H. R. Guan,&Z. Q. Hu.(2004).Phase transformation and bond coat oxidation behavior of EB-PVD thermal barrier coating.Surface & Coatings Technology,176(2),209-214. |
| MLA | M. H. Li,et al."Phase transformation and bond coat oxidation behavior of EB-PVD thermal barrier coating".Surface & Coatings Technology 176.2(2004):209-214. |
入库方式： OAI收割
来源：金属研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。