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Mechanical Properties and Oxidation Behaviors of Self-Healing SiCf/SiC-SiBCN Composites Exposed to H2O/O-2/Na2SO4 Environments

文献类型：期刊论文

作者Ji, Suya1,2; Liang, Bin1; Hu, Chenglong1; Pang, Shengyang1; Zhao, Rida1; Li, Jian1; Tang, Sufang1
刊名ACTA METALLURGICA SINICA-ENGLISH LETTERS
出版日期2023-08-23
页码15
关键词SiCf/SiC-SiBCN composite Mechanical property Oxidation Chemical vapor infiltration and polymer infiltration and pyrolysis (CVI-PIP) Self-healing
ISSN号1006-7191
DOI10.1007/s40195-023-01596-7
通讯作者Liang, Bin(bliang@imr.ac.cn) ; Tang, Sufang(sftang@imr.ac.cn)
英文摘要The oxidation behaviors and their influence on the mechanical properties of self-healing SiCf/SiC-SiBCN composites were investigated in H2O/O-2 and H2O/O-2/Na2SO(4) environments at 1200-1350 ? for 100 h. As the temperatures increase from 1200 to 1350 ?, the oxidation rate constants increase from 0.45 x 10(-7) to 1.58 x 10(-7) mg(2)/(mm(4) h) in H2O/O-2, and from 1.02 x 10(-7) to 3.42 x 10(-7) mg(2)/(mm(4) h) in H2O/O-2/Na2SO4. The involvement of Na2SO4 leads to the formation of a loose lamellar oxide layer, the breakage of the SiBCN/CVI-SiC interface and the decrease in the oxide viscosity, thus accelerating the oxidation of the composites. The composites show the maximum retention rate of strength (102%, 535.71 MPa) after oxidation in H2O/O-2 at 1200 ? due to the good self-healing capacity of the produced glass, while the minimum (82%, 430.56 MPa) in H2O/O-2/Na2SO4 at 1350 ? caused by the severe microstructural corrosion derived from Na2SO4.
资助项目National Natural Science Foundation of China[2021YFA1500804] ; Research Fund of Youth Innovation Promotion Association of Chinese Academy of Sciences, China ; National Key Ramp;amp;D Program of China ; [52188101]
WOS研究方向Metallurgy & Metallurgical Engineering
语种英语
WOS记录号WOS:001063394200002
出版者CHINESE ACAD SCIENCES, INST METAL RESEARCH
资助机构National Natural Science Foundation of China ; Research Fund of Youth Innovation Promotion Association of Chinese Academy of Sciences, China ; National Key Ramp;amp;D Program of China
源URL[http://ir.imr.ac.cn/handle/321006/179158]  
专题金属研究所_中国科学院金属研究所
通讯作者Liang, Bin; Tang, Sufang
作者单位1.Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, 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		 Ji, Suya,Liang, Bin,Hu, Chenglong,et al. Mechanical Properties and Oxidation Behaviors of Self-Healing SiCf/SiC-SiBCN Composites Exposed to H2O/O-2/Na2SO4 Environments[J]. ACTA METALLURGICA SINICA-ENGLISH LETTERS,2023:15.
APA Ji, Suya.,Liang, Bin.,Hu, Chenglong.,Pang, Shengyang.,Zhao, Rida.,...&Tang, Sufang.(2023).Mechanical Properties and Oxidation Behaviors of Self-Healing SiCf/SiC-SiBCN Composites Exposed to H2O/O-2/Na2SO4 Environments.ACTA METALLURGICA SINICA-ENGLISH LETTERS,15.
MLA Ji, Suya,et al."Mechanical Properties and Oxidation Behaviors of Self-Healing SiCf/SiC-SiBCN Composites Exposed to H2O/O-2/Na2SO4 Environments".ACTA METALLURGICA SINICA-ENGLISH LETTERS (2023):15.

入库方式： OAI收割

来源：金属研究所

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