Crystalline structure in SiC fibers driven by pyrolysis temperature and time
文献类型：期刊论文
| 作者 | Li, C; Xie, RB; Wang, MH; Sun, BX; Lei, GH; Huang, Q; Li, JJ; Zhu, YQ; Liu, RD; Lei, Q |
| 刊名 | JOURNAL OF THE CERAMIC SOCIETY OF JAPAN
 |
| 出版日期 | 2019 |
| 卷号 | 127期号:2页码:117—122 |
| 关键词 | TENSILE-STRENGTH HEAT-TREATMENT |
| ISSN号 | 1882-0743 |
| DOI | 10.2109/jcersj2.18151 |
| 文献子类 | 期刊论文 |
| 英文摘要 | In this work, we study the impact of pyrolysis temperature and time on the crystalline structure of lab made silicon carbide (SiC) fibers and their mechanical properties. The polycrystalline structure and the characteristic length scales of beta-SiC in fibers were characterized with X-ray diffraction, transmission electron microscope and synchrotron small angle X-ray scattering. The sizes of crystallites, particles and interparticle distance all increase as pyrolysis temperature or time increases while the crystallinity nearly remains constant, indicating SiC crystals in the fiber grow by absorbing the surrounding small crystals. The crystal growth follows the Ostwald ripening when pyrolysis temperature reaches 1500 degrees C. At this temperature, longer pyrolysis time seems to reduce the tensile strength, but still keep increasing the modulus. The stiffness is possibly associated with the growth of particle size, interparticle distance and the size of voids in fibers. (C) 2019 The Ceramic Society of Japan. All rights reserved. |
| 语种 | 英语 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/31538]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
| 作者单位 | Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, C,Xie, RB,Wang, MH,et al. Crystalline structure in SiC fibers driven by pyrolysis temperature and time[J]. JOURNAL OF THE CERAMIC SOCIETY OF JAPAN,2019,127(2):117—122. |
| APA | Li, C.,Xie, RB.,Wang, MH.,Sun, BX.,Lei, GH.,...&Lei, Q.(2019).Crystalline structure in SiC fibers driven by pyrolysis temperature and time.JOURNAL OF THE CERAMIC SOCIETY OF JAPAN,127(2),117—122. |
| MLA | Li, C,et al."Crystalline structure in SiC fibers driven by pyrolysis temperature and time".JOURNAL OF THE CERAMIC SOCIETY OF JAPAN 127.2(2019):117—122. |
入库方式： OAI收割
来源：上海应用物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。