Microstructure, mechanical properties and oxidation resistance of SiCf/SiC composites incorporated with boron nitride nanotubes
文献类型：期刊论文
| 作者 | Zhu, Guangxiang1,2,3; Dong, Shaoming1,2; Ni, Dewei1,2; Xu, Chengying4; Wang, Dengke1,2 |
| 刊名 | RSC ADVANCES
 |
| 出版日期 | 2016 |
| 卷号 | 6期号:86页码:83482-83492 |
| 英文摘要 | SiCf/BNNTs-SiC hierarchical composites were fabricated via firstly in situ growth of boron nitride nanotubes (BNNTs) on the surface of silicon carbide (SiC) fibers using boron powder as a raw material and subsequently matrix densification by chemical vapor infiltration (CVI) and polymer impregnation/pyrolysis (PIP) methods. With the incorporation of BNNTs, energy dissipation mechanisms at the nanoscale triggered by BNNTs such as pullout, debonding, crack deflection and crack bridging are observed. But the positive effect of BNNTs on mechanical properties have not been raised due to the offset from the negative effect of pores in composites. Additionally, the residual boron powder results in an improved oxidation resistance and parabolic oxidation kinetics of SiCf/SiC composites at 900 degrees C, thanks to the protective effect of the B2O3 glassy phase formed by the oxidation of boron. Consequently, a better strength retention after oxidation is obtained. Moreover, it is believed that the remaining strengthening and toughening mechanisms aroused by BNNTs surviving after oxidation probably also make a contribution to the better strength retention. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Chemistry, Multidisciplinary |
| 研究领域[WOS] | Chemistry |
| 关键词[WOS] | CARBON NANOTUBE ; SILICON-CARBIDE ; IN-SITU ; REINFORCEMENT ; KINETICS ; MATRIX ; CERAMICS ; BEHAVIOR |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000384155100123 |
| 源URL | [http://ir.sic.ac.cn/handle/331005/22017]  |
| 专题 | 上海硅酸盐研究所_结构陶瓷与复合材料工程研究中心_期刊论文 |
| 作者单位 | 1.Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China 2.Chinese Acad Sci, Shanghai Inst Ceram, Struct Ceram & Composites Engn Res Ctr, Shanghai 200050, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Florida State Univ, Dept Mech Engn, Tallahassee, FL 32310 USA |
| 推荐引用方式 GB/T 7714 | Zhu, Guangxiang,Dong, Shaoming,Ni, Dewei,et al. Microstructure, mechanical properties and oxidation resistance of SiCf/SiC composites incorporated with boron nitride nanotubes[J]. RSC ADVANCES,2016,6(86):83482-83492. |
| APA | Zhu, Guangxiang,Dong, Shaoming,Ni, Dewei,Xu, Chengying,&Wang, Dengke.(2016).Microstructure, mechanical properties and oxidation resistance of SiCf/SiC composites incorporated with boron nitride nanotubes.RSC ADVANCES,6(86),83482-83492. |
| MLA | Zhu, Guangxiang,et al."Microstructure, mechanical properties and oxidation resistance of SiCf/SiC composites incorporated with boron nitride nanotubes".RSC ADVANCES 6.86(2016):83482-83492. |
入库方式： OAI收割
来源：上海硅酸盐研究所
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