Theoretical investigation on structure, mechanical performance and oxidation resistance of the boron-doped PyC interphase in SiCf/ SiC composites
文献类型：期刊论文
| 作者 | Liu, Mei1,2; Zhang, Siyan1,2; Luo, Yixiu1; Sun, Luchao1; Wang, Jiemin1; Wang, Jingyang1 |
| 刊名 | JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
 |
| 出版日期 | 2024-05-01 |
| 卷号 | 44期号:5页码:3074-3083 |
| 关键词 | Ceramic matrix composites (CMCs) Ab-initio molecular dynamics (AIMD) Pyrolytic carbon (PyC) Interphase |
| ISSN号 | 0955-2219 |
| DOI | 10.1016/j.jeurceramsoc.2023.11.077 |
| 通讯作者 | Wang, Jiemin(jieminwang@imr.ac.cn) ; Wang, Jingyang(jywang@imr.ac.cn) |
| 英文摘要 | Pyrolytic carbon (PyC) is widely used as the interphase in SiCf/SiC composites because of the crack deflection capability originating from its weakly bonded layered structure. However, the poor oxidation resistance limits its application in SiCf/SiC. Boron doping can improve oxidation resistance due to the crack -healing effects of boron oxide. To explore the optimal boron doping content in PyC interphase, structure characters and mechanical properties of C128_ xBx (x = 8, 20, 32, 44, 64) were simulated by ab-initio molecular dynamics. Modeling results suggest a transition of C128_xBx from layered to amorphous accompanied by a change of its elasticity tensor from strongly anisotropic to nearly isotropic. The predicted optimal boron content is near 34 at%, at which the Bdoped PyC maintains a layered structure with a high crack deflection potential according to the Cook & Gordon model while having a high crack -healing capability with a large volume expansion factor. |
| 资助项目 | National Key R&D Program of China[2022YFB3707700] ; National Natural Science Foundation of China[U21A2063] ; LiaoNing Revitalization Talents Program[XLYC2002018] ; International Partnership Program of the Chinese Academy of Sciences[172GJHZ2022094FN] |
| WOS研究方向 | Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:001168180900001 |
| 出版者 | ELSEVIER SCI LTD |
| 资助机构 | National Key R&D Program of China ; National Natural Science Foundation of China ; LiaoNing Revitalization Talents Program ; International Partnership Program of the Chinese Academy of Sciences |
| 源URL |  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Wang, Jiemin; Wang, Jingyang |
| 作者单位 | 1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 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 | Liu, Mei,Zhang, Siyan,Luo, Yixiu,et al. Theoretical investigation on structure, mechanical performance and oxidation resistance of the boron-doped PyC interphase in SiCf/ SiC composites[J]. JOURNAL OF THE EUROPEAN CERAMIC SOCIETY,2024,44(5):3074-3083. |
| APA | Liu, Mei,Zhang, Siyan,Luo, Yixiu,Sun, Luchao,Wang, Jiemin,&Wang, Jingyang.(2024).Theoretical investigation on structure, mechanical performance and oxidation resistance of the boron-doped PyC interphase in SiCf/ SiC composites.JOURNAL OF THE EUROPEAN CERAMIC SOCIETY,44(5),3074-3083. |
| MLA | Liu, Mei,et al."Theoretical investigation on structure, mechanical performance and oxidation resistance of the boron-doped PyC interphase in SiCf/ SiC composites".JOURNAL OF THE EUROPEAN CERAMIC SOCIETY 44.5(2024):3074-3083. |
入库方式： OAI收割
来源：金属研究所
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