Thermal Stability of YSZ Thick Thermal Barrier Coatings Deposited by Suspension and Atmospheric Plasma Spraying
文献类型：期刊论文
| 作者 | Tao, SQ; Yang, JS; Zhai, ML; Shao, F; Zhong, XH; Zhao, HY; Zhuang, Y; Ni, JX; Li, W; Tao, SY |
| 刊名 | CRYSTALS
 |
| 出版日期 | 2020-11-01 |
| 期号 | 11 |
| ISSN号 | 2073-4352 |
| DOI | 10.3390/cryst10110984 |
| 文献子类 | Article |
| 英文摘要 | Two types of segmentation-crack structured yttria-stabilized zirconia (YSZ) thick thermal barrier coatings (>500 mu m, TTBCs) were deposited onto the stainless steel substrates using atmospheric plasma spraying (APS) and suspension plasma spraying (SPS) process, respectively. In this work, thermal aging behaviors, such as the microstructures, phase compositions, grain growth, and mechanical properties of APS TTBCs and SPS TTBCs, were systematically investigated. Results showed that both as-sprayed TTBCs exhibited a typical segmentation-crack structure in the through-thickness direction. APS coatings mainly comprised of larger columnar crystals, while a large number of smaller equiaxed grains existed in SPS coatings. Both of the coatings underwent tetragonal-monoclinic phase transformation after 155 degrees C/40 h heat treatment. The poorer phase stability of SPS TTBCs may have a connection with smaller grain size. Thermal-aged APS and SPS coatings exhibited a significant increase in H and E values with the rising of thermal aging temperature, and for the samples that thermal aged at 1550 degrees C, the H and E values increased sharply during initial stage then decreased after 80 h due to the phase decomposition. The segmented APS coatings had weak bonding between the lamellaes during thermal exposure, which caused the mean Vickers hardness value of APS TTBCs to be much lower than that of SPS TTBCs. |
| WOS关键词 | HEAT-TREATMENT ; ZIRCONIA ; BEHAVIOR |
| WOS研究方向 | Crystallography ; Materials Science |
| 语种 | 英语 |
| 出版者 | MDPI |
| 源URL | [http://ir.sic.ac.cn/handle/331005/27644]  |
| 专题 | 中国科学院上海硅酸盐研究所 |
| 推荐引用方式 GB/T 7714 | Tao, SQ,Yang, JS,Zhai, ML,et al. Thermal Stability of YSZ Thick Thermal Barrier Coatings Deposited by Suspension and Atmospheric Plasma Spraying[J]. CRYSTALS,2020(11). |
| APA | Tao, SQ.,Yang, JS.,Zhai, ML.,Shao, F.,Zhong, XH.,...&Tao, SY.(2020).Thermal Stability of YSZ Thick Thermal Barrier Coatings Deposited by Suspension and Atmospheric Plasma Spraying.CRYSTALS(11). |
| MLA | Tao, SQ,et al."Thermal Stability of YSZ Thick Thermal Barrier Coatings Deposited by Suspension and Atmospheric Plasma Spraying".CRYSTALS .11(2020). |
入库方式： OAI收割
来源：上海硅酸盐研究所
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