Effects of needle-punched felt structure on the mechanical properties of carbon/carbon composites

被引：74

作者：

Chen, TF ^{[1
]}

Liao, JQ ^{[1
]}

Liu, GS ^{[1
]}

Zhang, FQ ^{[1
]}

Gong, QM ^{[1
]}

机构：

[1] Cent S Univ, Natl Key Lab Powder Met, Changsha 410083, Peoples R China

来源：

CARBON | 2003年 / 41卷 / 05期

关键词：

carbon/carbon composites; pyrolytic carbon; chemical vapor infiltration; mechanical properties;

D O I：

10.1016/S0008-6223(02)00445-1

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The effects of needle-punched felt structure, including mass ratio of non-woven cloth to short-cut fiber web, PAN-based carbon fiber types of non-woven cloth and thickness of unit (one layer of non-woven cloth and short-cut web was named as a unit), on the flexural properties of C/C composites from pressure gradient CVI are discussed. Results show that flexural strength and modulus increase when mass ratio of non-woven cloth to short-cut fiber web changes from 7:3 to 6:4 and that PAN-based carbon fiber types of non-woven cloth strongly influence the flexural properties. The strength of C/C composites is not linear with the strength of non-woven cloth carbon fiber because of the important interface between carbon fiber and matrix carbon. It is suitable to choose T300 or T700 as reinforcing carbon fiber for C/C composites in the present study. An optimum unit number per cm of the needle-punched felts for higher flexural properties exists. (C) 2003 Elsevier Science Ltd. All rights reserved.

引用

页码：993 / 999

页数：7

共 20 条

[1]

Buckley J.D., 1993, CARBON CARBON MAT CO, P1

[2]

[陈腾飞 Chen Tengfei], 2002, [矿冶工程, Mining and Metallurgical Engineering], V22, P69

[3] MECHANICAL-PROPERTIES OF CARBON-CARBON COMPOSITES [J].

CHLOPEK, J ;

BLAZEWICZ, S ;

POWROZNIK, A .

CERAMICS INTERNATIONAL, 1993, 19 (04) :251-257

[4] MECHANICAL-PROPERTIES IN FLEXURE AND TENSION OF LOW-DENSITY CARBON-CARBON COMPOSITES [J].

DAVIES, IJ ;

RAWLINGS, RD .

CARBON, 1994, 32 (08) :1449-1456

[5]

FIGUEREDO JL, 1990, CARBON FIBER FILAMEN, P275

[6] STRUCTURE AND STRENGTH OF CARBON-CARBON COMPOSITES [J].

FITZER, E ;

HUTTNER, W .

JOURNAL OF PHYSICS D-APPLIED PHYSICS, 1981, 14 (03) :347-&

[7] THE INFLUENCE OF CARBON-FIBER SURFACE-TREATMENT ON THE MECHANICAL-PROPERTIES OF CARBON-CARBON COMPOSITES [J].

FITZER, E ;

GEIGL, KH ;

HUTTNER, W .

CARBON, 1980, 18 (04) :265-270

[8]

Hearle J., 1971, FIBRE SCI TECHNOL, V4, P81, DOI [DOI 10.1016/0015-0568(71)90014-5, https://doi.org/10.1016/0015-0568(71)90014-5]

[9] Interface-like fracture mechanism in pyrolytic carbon matrix-based carbon-carbon composites [J].

Hou, XH ;

Li, HJ ;

Zhang, SY ;

Shen, J .

MATERIALS LETTERS, 2001, 48 (02) :117-120

[10]

JAIN PK, 1992, SAMPE QUART, V23, P43

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