Preparation and thermophysical properties of Ti4+ doped zirconia matrix thermal barrier coatings
文献类型：期刊论文
| 作者 | Yang, Ming1,2; Zhu, Yongping1; Wang, Xueying1; Wang, Qin3; Ai, Li3; Zhao, Lili1; Chu, Ying1; Guo, Shengnan1,2; Hu, Jing1,2; Zhang, Qing1,2 |
| 刊名 | JOURNAL OF ALLOYS AND COMPOUNDS
 |
| 出版日期 | 2019-03-10 |
| 卷号 | 777页码:646-654 |
| 关键词 | Thermal barrier coatings Thermal conductivity Point defects |
| ISSN号 | 0925-8388 |
| DOI | 10.1016/j.jallcom.2018.11.034 |
| 英文摘要 | There is an upper limited temperature of about 1200 degrees C for yttrium oxide partially stabilized zirconia coatings. With the increasing temperature of inlet gas (>1200 degrees C), new thermal barrier coatings are urgently needed to replace traditional yttrium oxide partially stabilized zirconia. Ti4+ ion doping has been recognized as an effective method to achieve this. In this work, a novel ceramic coating with low thermal conductivity at 1600 degrees C is synthesized, and the microstructure, chemical components, phase structures are analyzed. The thermal diffusivity and thermal conductivity of the as-sprayed coatings initially exhibited low values up to 1600 degrees C. The mechanism of low thermal conductivity is analyzed. The oxygen vacancies effectively reduce thermal conductivity, which can be proved by the ablation experiment (at 1600 degrees C). The effect of lattice defects caused by differences in the masses and radii of Ti4+ and Zr4+ ions on the phonon scattering coefficient is analyzed quantitatively. These results indicate that this coating is a promising candidate for thermal barrier coatings at high temperatures. (C) 2018 Elsevier B.V. All rights reserved. |
| WOS关键词 | CONDUCTIVITY ; MICROSTRUCTURE ; LAMGAL11O19 ; BEHAVIOR ; GAS |
| 资助项目 | National Natural Science Foundation of China[51202247] ; open fund of State Key Laboratory of Multi-phase Complex Systems[MPCS-2014-D-13] |
| WOS研究方向 | Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000454856800078 |
| 出版者 | ELSEVIER SCIENCE SA |
| 资助机构 | National Natural Science Foundation of China ; open fund of State Key Laboratory of Multi-phase Complex Systems |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/27692]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Zhu, Yongping; Wang, Xueying |
| 作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Sci & Technol Scramjet Lab, Beijing 100074, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Ming,Zhu, Yongping,Wang, Xueying,et al. Preparation and thermophysical properties of Ti4+ doped zirconia matrix thermal barrier coatings[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2019,777:646-654. |
| APA | Yang, Ming.,Zhu, Yongping.,Wang, Xueying.,Wang, Qin.,Ai, Li.,...&Zhang, Qing.(2019).Preparation and thermophysical properties of Ti4+ doped zirconia matrix thermal barrier coatings.JOURNAL OF ALLOYS AND COMPOUNDS,777,646-654. |
| MLA | Yang, Ming,et al."Preparation and thermophysical properties of Ti4+ doped zirconia matrix thermal barrier coatings".JOURNAL OF ALLOYS AND COMPOUNDS 777(2019):646-654. |
入库方式： OAI收割
来源：过程工程研究所
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