难熔金属碳化物ZrC对树脂基炭微观结构的影响

张中伟; 梅敏; 李亮; 南策文; 王俊山; 许正辉

doi:10.1016/S1872-5805(16)60024-0

难熔金属碳化物ZrC对树脂基炭微观结构的影响

doi: 10.1016/S1872-5805(16)60024-0

1.
清华大学材料科学与工程系新型陶瓷与精细加工国家重点实验室, 北京 100084;
2.
航天材料及工艺研究所先进功能复合材料技术重点实验室, 北京 100076;
3.
中国运载火箭技术研究院, 北京 100076

详细信息

通讯作者:
张中伟,博士.E-mail:zhangzhongw@163.com

中图分类号: TB332
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- 被引次数: 0
出版历程
- 收稿日期: 2016-05-10
- 录用日期: 2016-08-29
- 修回日期: 2016-07-20
- 刊出日期: 2016-08-28

Influence of ZrC on the microstructure of its surrounding resin-based carbon at high temperature

1.
State Key Laboratory of New Ceramics & Fine Processing, Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, China;
2.
Science and Technology on Advanced Functional Composites Laboratory, Aerospace Research Institute of Materials and Processing Technology, Beijing 100076, China;
3.
China Academy of Launch Vehicle Technology, Beijing 100076, China

摘要

摘要: 在微纳观尺度，利用SEM、TEM和HR-TEM观察了难熔碳化物（ZrC）和树脂基炭经2 500℃以上高温处理后的显微组织结构。结果表明：ZrC颗粒表面包裹了一层取向和生长良好的石墨微晶炭过渡层。其中炭过渡层中晶体的层间距d₀₀₂为0.337 5 nm，而没有包裹ZrC颗粒的树脂基炭仍然是各向同性结构。结合选区电子衍射结果可知，ZrC颗粒在高温下对树脂基炭有催化石墨化和诱导石墨化效应。
- 难熔碳化物 /
- 碳 /
- 微观结构 /
- 石墨化
Abstract: The microstructures of a refractory ZrC particle and its surrounding resin-based carbon treated above 2500℃ were investigated by SEM, TEM, HR-TEM and selected area electron diffraction. Results show that the ZrC particle is enclosed by a transition carbon layer that has a d₀₀₂ of 0.3375 nm, close to that of ideal graphite, indicating the formation of a well graphitized structure. The carbon far away from the ZrC particle remains isotropic and amorphous. These results are verified by selected area electron diffraction, and can be attributed to catalytic graphitization and stress-induced graphitization.
- Refractory carbide /
- Carbon /
- Microstructure /
- Graphitization

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参考文献(18)

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