Polycarbosilane was used as the preceramic for matrix formation and 2D layered 0°/90° fabrics as the reinforcement to fabricate C/SiC composites. The effect of pyrolysis temperature and slurry concentration on the properties of the composites was systematically studied. The results show that the flexural stress increase with the increase of both pyrolysis Temperature and slurry concentration. The matrix distribution in fiber bundle is quite homogeneous, but some small pores still exist after eight pyrolysis cycles. When the composite is pyrolyzed at 1100℃, β-SiC begins to form in the matrix. The flexural stress and toughness reach 232MPa and 10.50MPa·m1/2, respectively. Observation of long pull-out fibers in the fracture surface demonstrates a toughened fracture behavior of the composite.
ZHU Yun-Zhou
,
HUANG Zheng-Ren
,
DONG Shao-Ming
,
YUAN Ming
,
JIANG Dong-Liang
. Pressureless Preparation and Properties of C/SiC Composites[J]. Journal of Inorganic Materials, 2007
, 22(4)
: 685
-689
.
DOI: 10.3724/SP.J.1077.2007.00685
[1] 董绍明, 陈忠明, 谭寿洪, 等(DONG Shao-Ming, et al). 无机材料学报(Journal of Inorganic Materials), 1997, 12 (6): 791--796.
[2] 徐永东, 张立同, 成来飞, 等(XU Yong-Dong, et al). 硅酸盐学报(Journal of the Chinese Ceramic Society), 1996, 24 (5): 485--489.
[3] 尹洪峰, 徐永东, 成来飞, 等(YIN Hong-Feng, et al).硅酸盐学报(Journal of the Chinese Ceramic Society), 2000, 28 (5): 437--440.
[4] 张新明, 何新波, 张长瑞, 等(ZHANG Xin-Ming, et al). 硅酸盐学报(Journal of the Chinese Ceramic Society), 1999, 27 (5): 611--617.
[5] Tani E, Shobu K, Kishi K, et al. J. Am. Ceram. Soc., 1999, 82 (5): 1355--1357.
[6] Xu Y D, Cheng L F, Zhang L T. Ceram. Int., 2001, 27: 565--570.
[7] 吴守军, 成来飞, 张立同, 等(WU Shou-Jun, et al). 无机材料学报(Journal of Inorganic Materials), 2005, 20 (1): 251--256.
[8] 方 晖, 郑文伟, 陈朝辉. 陶瓷学报, 2002, 23 (3): 174--177.
[9] Kotani M, Kohyama A, Katoh Y. J. Nucl. Mater., 2001, 289: 37--41.
[10] 所 俊, 郑文伟, 肖加余, 等. 宇航材料工艺, 2000, (2): 29--32.
[11] Dong S M, Katoh Y, Kohyama A. J. Am. Ceram. Soc., 2003, 86 (1): 27--32.
[12] Yang W, Araki H, Kohyama A, et al. Ceram. Int., 2005, 31: 47--52.
[13] Suo J, Chen Z H, Xiao J Y, et al. Ceram. Int., 2005, 31: 447--452.
