Fabrication and oxidation resistant behavior of plasma sprayed Si/Yb2Si2O7/LaMgAl11O19coating for Cf/SiC composites at 1673 K

doi:10.1016/j.ceramint.2016.09.171

	Fabrication and oxidation resistant behavior of plasma sprayed Si/Yb2Si2O7/LaMgAl11O19coating for Cf/SiC composites at 1673 K
	Fan, Wenjuan 1,2; Zou, Binglin 2; Fan, Cunyan 1,2; Wang, Ying 2; Cai, Xiaolong 2; Tao, Shunyan 3; Xu, Jiaying 2; Wang, Chunjie 2; Cao, Xueqiang 4; Zhu, Ling 1
刊名	Ceramics International
	2017
卷号	43 期号:1 页码:392-398
ISSN号	02728842
DOI	10.1016/j.ceramint.2016.09.171
英文摘要	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.
内容类型	期刊论文
源URL	[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
推荐引用方式 GB/T 7714	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.