Morphology analysis of air plasma sprayed 7%Y2O3-ZrO2 splat

被引：0
|
作者：
School of Materials Science and Engineering, South China University of Technology, Guangzhou [1 ]
510640, China
不详 [2 ]
510650, China
机构：
[1] School of Materials Science and Engineering, South China University of Technology, Guangzhou
[2] Institute of New Materials, Guangzhou Research Institute of Non-Ferrous Metals, Guangzhou
来源：
Kuei Suan Jen Hsueh Pao | / 1卷 / 21-27期
关键词：
Flattening splat; Plasma spraying; Splat warping; Yttria; Zirconia;
D O I：
10.14062/j.issn.0454-5648.2015.01.04
中图分类号：
学科分类号：
摘要：
7%Y2O3-ZrO2 (7YSZ, i. e. 7%yttria stabilized zirconia) flattening splats were collected on the polished 316L stainless steel and the polished NiCoCrAlYTa coated by air plasma spraying as substrates, respectively. The influence of substrate temperature on the splat morphology was investigated. The interface between 7YSZ splat and the substrate was characterized via field emission-scanning electron microscopy assisted with focused ion beam (FIB). Besides, the interface between the splat and the substrate was also analyzed by an finite element software named ANSYS/LS-DYNA. The results indicate that the disk-shaped splats are obtained on different substrates at nearly 250 ℃. The warping appears at the edge of flattening splat on the 316L substrate. However, little warping occurs at the edge interface of coated 7YSZ/NiCoCrAlYTa. The center interface between 7YSZ and substrate can be well-bonded. In addition, the splat morphology simulated by ANSYS on both substrates is similar to the experimental result. ©, 2015, Chinese Ceramic Society. All right reserved.
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页码：21 / 27
页数：6
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