[1]邹继兆,曾燮榕,黎晓华,等.炭源对制备炭/炭复合材料微波CVI工艺的影响[J].深圳大学学报理工版,2009,26(1):77-80.
 ZOU Ji-zhao,ZENG Xie-rong,LI Xiao-hua,et al.Influence carbon sources on the densification of carbon/carbon composites preparation in microwave pyrolysis CVI[J].Journal of Shenzhen University Science and Engineering,2009,26(1):77-80.
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炭源对制备炭/炭复合材料微波CVI工艺的影响()
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《深圳大学学报理工版》[ISSN:1000-2618/CN:44-1401/N]

卷:
第26卷
期数:
2009年1期
页码:
77-80
栏目:
材料科学
出版日期:
2009-01-30

文章信息/Info

Title:
Influence carbon sources on the densification of carbon/carbon composites preparation in microwave pyrolysis CVI
文章编号:
1000-2618(2009)01-0077-04
作者:
邹继兆曾燮榕黎晓华熊信柏谢盛辉钱海霞
深圳大学材料学院,深圳市特种功能材料重点实验室,深圳 518060
Author(s):
ZOU Ji-zhaoZENG Xie-rongLI Xiao-huaXIONG Xin-boXIE Sheng-huiand QIAN Hai-xia
College of Materials Science and Engineering,Shenzhen Key Laboratory of Special Functional Materials,Shenzhen University,Shenzhen 518060,P.R.China
关键词:
炭/炭复合材料微波热解CVI致密化
Keywords:
carbon/carbon compositesmicrowavepyrolysisCVIdensification
分类号:
TB 332
文献标志码:
A
摘要:
以炭毡为预制体,N2为稀释气体,在沉积温度为1 100℃和1 150℃时,研究不同气体前驱体(甲烷和丙烯)对微波热解CVI工艺(MCVI)制备炭/炭复合材料致密化速率和密度均匀性的影响,并观察材料的表面形貌和微观结构,分析MCVI工艺的可行性.结果表明,非极性甲烷更适用于MCVI工艺,预制体可实现从内到外逐步致密,避免了表面结壳现象,提高了致密化速率.采用该工艺,可在30 h内制备密度达1.70 g/cm3以上的炭/炭复合材料.
Abstract:
With felts of carbon fiber as preform and N2 as diluent gas,the densification rules of MCVI were studied by densification rate and radial-direction density distribution with different carbon source gas (methane and propylene) at deposition temperature of 1 100℃ and 1 150℃. The textures of sample were observed,the feasibility of MCVI was analyzed. Results show that CH4 is more suitable for the source gas of carbon/carbon composites prepared by MCVI than thesource gas C3H6. Pore choking at the surface of preform is avoided,and preforms can be densified from center to surface in the MCVI. Carbon/carbon composites with the bulk density 1.70 g/cm3 can be obtained, prepared by MCVI for 30 h.

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备注/Memo

备注/Memo:
收稿日期:2008-10-12
基金项目:国家自然科学基金资助项目(50672059);广东科技攻关计划资助项目(2004B10301006);深圳大学科研启动基金资助项目(200804)
作者简介:邹继兆(1977-),男(汉族),江西省吉安市人,深圳大学讲师、博士. E-mail: zoujizhao2004@163.com
通讯作者:曾燮榕(1963-),男(汉族),深圳大学教授、博士生导师.E-mail:zengxier@szu.edu.cn
更新日期/Last Update: 2009-02-17