Thermal shock resistance of tri-layer Yb2SiO5/Yb2Si2O7/Si coating for SiC and SiC-matrix composites
文献类型：期刊论文
| 作者 | Zhong, Xin1; Niu, Yaran; Li, Hong1; Zhou, Haijun2; Dong, Shaoming2; Zheng, Xuebin; Ding, Chuanxian; Sun, Jinliang1 |
| 刊名 | JOURNAL OF THE AMERICAN CERAMIC SOCIETY
 |
| 出版日期 | 2018 |
| 卷号 | 101期号:10页码:4743 |
| 关键词 | environmental barrier coating microstructure rare earth silicates thermal shock resistance Yb2Si2O7 |
| ISSN号 | 0002-7820 |
| DOI | 10.1111/jace.15713 |
| 英文摘要 | A new tri-layer Yb2SiO5/Yb2Si2O7/Si coating was fabricated on SiC, C/SiC, and SiC/SiC substrates, respectively, using atmospheric plasma spray (APS) technique. All coated samples were subjected to thermal shock test at 1350 degrees C. The evolution of phase composition and microstructure and thermo-mechanical properties of those samples before and after thermal shock test were characterized. Results showed that adhesion between all the 3 layers and substrates appeared good. After thermal shock tests, through microcracks which penetrated the Yb2SiO5 top layer were mostly halted at the Yb2SiO5-Yb2Si2O7 interface and no thermal growth oxide (TGO) was formed after 40-50 quenching cycles, implying the excellent crack propagation resistance of the environmental barrier coating (EBC) system. Transmission electron microscopy analysis confirmed that twinnings and dislocations were the main mechanisms of plastic deformation of the Yb2Si2O7 coating, which might have positive effects on crack propagation resistance. The thermal shock behaviors were clarified based on thermal stresses combined with thermal expansion behaviors and elastic modulus analysis. This study provides a strategy for designing EBC systems with excellent crack propagation resistance. |
| 学科主题 | Materials Science, Ceramics |
| WOS记录号 | WOS:000440554000040 |
| 出版者 | WILEY |
| 资助机构 | Youth Innovation Promotion Association CAS, Grant/Award Number: 2014223 ; Engineering case study in extreme conditions using system mechanics approach, Grant/Award Number: XDB22010202 ; Youth Innovation Promotion Association CAS, Grant/Award Number: 2014223 ; Engineering case study in extreme conditions using system mechanics approach, Grant/Award Number: XDB22010202 |
| 源URL | [http://ir.sic.ac.cn/handle/331005/24659]  |
| 专题 | 中国科学院上海硅酸盐研究所 |
| 作者单位 | 1.Chinese Acad Sci, Shanghai Inst Ceram, Key Lab Inorgan Coating Mat CAS, Shanghai, Peoples R China 2.Shanghai Univ, Res Ctr Composite Mat, Shanghai, Peoples R China 3.Chinese Acad Sci, Shanghai Inst Ceram, Struct Ceram & Composites Engn Res Ctr, Shanghai, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhong, Xin,Niu, Yaran,Li, Hong,et al. Thermal shock resistance of tri-layer Yb2SiO5/Yb2Si2O7/Si coating for SiC and SiC-matrix composites[J]. JOURNAL OF THE AMERICAN CERAMIC SOCIETY,2018,101(10):4743, 4752. |
| APA | Zhong, Xin.,Niu, Yaran.,Li, Hong.,Zhou, Haijun.,Dong, Shaoming.,...&Sun, Jinliang.(2018).Thermal shock resistance of tri-layer Yb2SiO5/Yb2Si2O7/Si coating for SiC and SiC-matrix composites.JOURNAL OF THE AMERICAN CERAMIC SOCIETY,101(10),4743. |
| MLA | Zhong, Xin,et al."Thermal shock resistance of tri-layer Yb2SiO5/Yb2Si2O7/Si coating for SiC and SiC-matrix composites".JOURNAL OF THE AMERICAN CERAMIC SOCIETY 101.10(2018):4743. |
入库方式： OAI收割
来源：上海硅酸盐研究所
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