Low residual stress SiC coatings on C/CA composites by a strategy of matching their expansion behaviors to improve thermal shock resistance

doi:10.1016/j.coco.2024.101891

IMR OpenIR

	Low residual stress SiC coatings on C/CA composites by a strategy of matching their expansion behaviors to improve thermal shock resistance
	Yan, Meng 1,2; Hu, Chenglong 1; Li, Jian 1; Pang, Shengyang 1; Sun, Bohui 1; Zhao, Rida 1; Liang, Bin 1; Luo, Rui 1,2; Tang, Sufang 1
通讯作者	Hu, Chenglong(clhu10s@imr.ac.cn) ; Tang, Sufang(sftang@imr.ac.cn)
	2024-06-01
发表期刊	COMPOSITES COMMUNICATIONS
ISSN	2452-2139
卷号	48 页码:6
摘要	The poor thermal shock resistance of coated C/CA composites limits the applications with rapid temperature fluctuations due to the huge thermal mismatch between the coating and the substrate. A facile strategy of tailoring coefficient of thermal expansion (CTE) of C/CA is proposed to match their thermal deformation behaviors. The optimized C/CA by heat treatment has a positive correlation between CTE and temperature, and thus the as-prepared SiC coating has a decreased macroscopic residual strain of 80.7% due to their coordinated thermal response compared to the original C/CA. Meanwhile, benefited from the structural improvement of larger pore size and higher degree of graphitization of C/CA, a significantly decreased tensile stress of 60.3% in the coating is achieved due to the formation of small SiC spheres in the carbon network. Resultantly, the coated C/CA shows remarkably improved thermal shock resistance with narrower and fewer microcracks, and lower mass and linear cyclic ablation rates of 0.252 mg/s and 0.607 mu m/s, respectively.
关键词	C/CA composites Coating Residual stress Expansion behaviors
资助者	Defense Industrial Technology Development Program ; National Natural Science Foundations of China ; Research Fund of Youth Innovation Promotion Association of CAS, China ; Directional institutionalized scientific research platform relies on China Spallation Neutron Source of Chinese Academy of Sciences ; National Key R & D Program of China
DOI	10.1016/j.coco.2024.101891
收录类别	SCI
语种	英语
资助项目	Defense Industrial Technology Development Program[JCKY2021130B007] ; National Natural Science Foundations of China[52272075] ; National Natural Science Foundations of China[52188101] ; Research Fund of Youth Innovation Promotion Association of CAS, China[2021190] ; Directional institutionalized scientific research platform relies on China Spallation Neutron Source of Chinese Academy of Sciences ; National Key R & D Program of China[2021YFA1500804]
WOS研究方向	Materials Science
WOS类目	Materials Science, Composites
WOS记录号	WOS:001223778000001
出版者	ELSEVIER SCI LTD
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/186137
专题	中国科学院金属研究所
通讯作者	Hu, Chenglong; Tang, Sufang
作者单位	1.Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Yan, Meng,Hu, Chenglong,Li, Jian,et al. Low residual stress SiC coatings on C/CA composites by a strategy of matching their expansion behaviors to improve thermal shock resistance[J]. COMPOSITES COMMUNICATIONS,2024,48:6.
APA	Yan, Meng.,Hu, Chenglong.,Li, Jian.,Pang, Shengyang.,Sun, Bohui.,...&Tang, Sufang.(2024).Low residual stress SiC coatings on C/CA composites by a strategy of matching their expansion behaviors to improve thermal shock resistance.COMPOSITES COMMUNICATIONS,48,6.
MLA	Yan, Meng,et al."Low residual stress SiC coatings on C/CA composites by a strategy of matching their expansion behaviors to improve thermal shock resistance".COMPOSITES COMMUNICATIONS 48(2024):6.