新型炭材料（中英文）2026，Vol.41Issue(3)：597-611,15.DOI:10.1016/S1872-5805(26)61080-3
基于中间相沥青黏结剂与石墨片填料快速制备炭/炭复合材料及其电磁屏蔽与导热性能
Rapidly fabricated carbon/carbon composites with a mesophase pitch binder and graphite flake filler with excellent EMI shielding and thermal conductivity
罗鹏飞 1田山 1郭丰骏 1肖志超1
作者信息
- 1. 西安交通大学 金属材料强度全国重点实验室 材料科学与工程学院,陕西 西安,710049
- 折叠
摘要
Abstract
Carbon/carbon(C/C)composites are ideal materials for electromagnetic inter-ference(EMI)shielding and thermal manage-ment in the aerospace field because of their low density.However,traditional C/C com-posites primarily rely on repeated densifica-tion to increase their EMI shielding effective-ness(SE),which not only increases density but also involves lengthy preparation cycles.We have constructed a unidirectional(1D)C/C composite using a matrix of mesophase pitch-derived carbon and graphite flakes,re-inforced with mesophase pitch-based carbon fibers.Using a one-step consolidation pro-cess produced by spontaneous assembly dur-ing heating,the open pores and a continuous conductive network give the composite an EMI SE of up to 83.97 dB in the 8.2-12.4 GHz(X-band).The material also has a thermal conductivity of 191.84 W·m-1·K-1 and an electrical conductivity of 6.50×104 S·m-1 along the fiber direction,together with a flexural strength exceeding 100 MPa,while having a bulk density of only 1.01 g·cm-3.This work therefore presents a short-cycle fabrication strategy for low-density C/C composites that integrate high EMI SE,efficient thermal management,and good mechanical properties.关键词
炭/炭(C/C)复合材料/中间相沥青/电磁屏蔽/热导率/电导率Key words
Carbon/carbon(C/C)composites/Mesophase pitch/Electromagnetic interference(EMI)shielding/Thermal conductivity/Electrical conductivity分类
通用工业技术引用本文复制引用
罗鹏飞,田山,郭丰骏,肖志超..基于中间相沥青黏结剂与石墨片填料快速制备炭/炭复合材料及其电磁屏蔽与导热性能[J].新型炭材料（中英文）,2026,41(3):597-611,15.
