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Fabrication and oxidation resistant behavior of plasma sprayed Si/Yb2Si2O7/LaMgAl11O19coating for Cf/SiC composites at 1673 K
Fan, Wenjuan1,2; Zou, Binglin2; Fan, Cunyan1,2; Wang, Ying2; Cai, Xiaolong2; Tao, Shunyan3; Xu, Jiaying2; Wang, Chunjie2; Cao, Xueqiang4; Zhu, Ling1
2017
发表期刊Ceramics International
ISSN02728842
卷号43期号:1页码:392-398
摘要Cf/SiC composites were plasma sprayed with Yb2Si2O7/LaMgAl11O19coatings with and without Si bond layer. Microstructure and oxidation protection of the coatings at 1673 K were investigated. The results showed that the coatings have the same phase constituent as that of the powders and uniformly distributed on the substrate. The bonding interface between the coating and substrate with Si bond layer is better than that of without Si bond layer. After 15 cycles of heating at 1673 K for 90 min, the weight losses of the coated samples with and without Si bond layer were 2.54% and 21.89%, respectively, however, for the uncoated sample, its weight loss was up to 36.47%. To certain extent, the Si bond layer efficiently healed the porosity on the surface of substrate and relieved the mismatch of coefficient of thermal expansion (CTE) between the coating and substrate, and therefore significantly improved the oxidation protection of the coating. The difference of CTEs between the coating and substrate, the chemical reactions between the LaMgAl11O19and Yb2Si2O7layers and the holes and cracks inside Cf/SiC composites were disadvantageous to the oxidation resistance of the coatings. © 2016 Elsevier Ltd and Techna Group S.r.l.
DOI10.1016/j.ceramint.2016.09.171
EI入藏号20164402958825
EI主题词Plasma spraying
EI分类号539.1 Metals Corrosion - 549.3 Nonferrous Metals and Alloys excluding Alkali and Alkaline Earth Metals - 801.4 Physical Chemistry - 813.2 Coating Materials - 932.3 Plasma Physics - 951 Materials Science
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文献类型期刊论文
条目标识符http://ir.sic.ac.cn/handle/331005/25872
专题中国科学院上海硅酸盐研究所
作者单位1.Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation, School of Chemistry and Biological Engineering, Changsha University of Science and Technology, Changsha; Hunan; 410114, China;
2.State Key Laboratory of Rare Earth Resources Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun; Jilin; 130022, China;
3.Key Laboratory of Inorganic Coating Materials, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai; 200050, China;
4.State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan; Hubei; 430070, China
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Fan, Wenjuan,Zou, Binglin,Fan, Cunyan,et al. Fabrication and oxidation resistant behavior of plasma sprayed Si/Yb2Si2O7/LaMgAl11O19coating for Cf/SiC composites at 1673 K[J]. Ceramics International,2017,43(1):392-398.
APA Fan, Wenjuan.,Zou, Binglin.,Fan, Cunyan.,Wang, Ying.,Cai, Xiaolong.,...&Zhu, Ling.(2017).Fabrication and oxidation resistant behavior of plasma sprayed Si/Yb2Si2O7/LaMgAl11O19coating for Cf/SiC composites at 1673 K.Ceramics International,43(1),392-398.
MLA Fan, Wenjuan,et al."Fabrication and oxidation resistant behavior of plasma sprayed Si/Yb2Si2O7/LaMgAl11O19coating for Cf/SiC composites at 1673 K".Ceramics International 43.1(2017):392-398.
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