Effect of slurries on the microstructure and mechanical properties of Cf/SiC composites via precursor pyrolysis

被引：0
|
作者：
Key Laboratory of Novel Ceramic Fibers and Composites Materials, National University of Defense Technology, Changsha 410073, China [1 ]
机构：
来源：
Cailiao Gongcheng | 2008年 / 11卷 / 9-12期
关键词：
Density (specific gravity) - Fracture toughness - Fracture - Microstructure - Pyrolysis;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Cf/SiC composites were fabricated by Precursor Infiltration and Pyrolysis(PIP) with three different slurries. This paper studied the effects of the slurries on the microstructure and mechanical properties of their composites. It is pointed that the composites infiltrated with the slurry of PCS/cross-linking agent had a density of 1.78g·cm-3 and a open porosity of 4.95%, and its fabrication was only made of 9 times of infiltration and pyrolysis; The second composites infiltrated with PCS/Xylene/SiC had the highest density of 1.87g·cm-3 with smooth surface; And the last composites took on outstanding mechanical properties, the values of flexural strength, flexural modulus and fracture toughness were 455.9MPa, 90.6GPa and 18.9 MPa·m1/2 respectively. The results indicate that different slurries have different advantages, the composites could obtain the best characteristic if it was infiltrated with the most appropriate slurry in every fabrication circles.
引用
收藏
页码：9 / 12
相关论文
共 50 条
  • [21] Evaluation of microstructure of Cf/SiC composite fabricated by precursor infiltration and pyrolysis
    Li Wei
    Chen Zhaohui
    RARE METAL MATERIALS AND ENGINEERING, 2007, 36 : 611 - 614
  • [22] Effect of sintering additives on mechanical properties of Cf/SiC composites
    He, XB
    MATERIALS CHEMISTRY AND PHYSICS, 2002, 74 (03) : 300 - 305
  • [23] Mechanical behaviour and microstructure of Cf/ZrC, Cf/SiC and Cf/ZrC-SiC composites
    Yan, C.
    Liu, R.
    Zhang, C.
    Cao, Y.
    Long, X.
    ADVANCES IN APPLIED CERAMICS, 2016, 115 (07) : 391 - 395
  • [24] Effect of Braided Structure on Mechanical Properties of Cf/SiC Composites
    Zhang, Deke
    Cao, Yingbin
    Liu, Rongjun
    Jiao, Yanan
    MATERIALS PROCESSING TECHNOLOGY II, PTS 1-4, 2012, 538-541 : 423 - +
  • [25] Fabrication of Cf SiC ceramic matrix composites by polymer precursor pyrolysis
    Zhou, X
    Zhang, C
    Ma, J
    Zhou, A
    HIGH TEMPERATURE CERAMIC MATRIX COMPOSITES III, 1999, 164-1 : 43 - 47
  • [26] Fabrication of Cf/SiC Ceramic Matrix Composites by Polymer Precursor Pyrolysis
    Dept. of Mat. Eng. and Appl. Chem., Natl. Univ. of Defence Technology, 410073 Changsha, Hunan, China
    Key Eng Mat, (43-48):
  • [27] Microstructure and Mechanical Properties of Cf/SiC Composites Reinforced with Boron Nitride Nanowires
    Zhu, G.
    Dong, S.
    Hu, J.
    Kan, Y.
    Gao, L.
    Zhang, X.
    Wang, Z.
    Ding, Y.
    JOURNAL OF CERAMIC SCIENCE AND TECHNOLOGY, 2017, 8 (01): : 31 - 37
  • [28] Tensile properties of 2D Cf/SIC composites fabricated by precursor infiltration and pyrolysis
    Liu Jingyu
    Chen Zhaohui
    Jian Ke
    RARE METAL MATERIALS AND ENGINEERING, 2007, 36 : 339 - 342
  • [29] Mechanical and microwave absorption properties of Ti-filled SiCf/SiC composites via precursor infiltration and pyrolysis
    Shichang Duan
    Dongmei Zhu
    Wancheng Zhou
    Fa Luo
    Qiang Chen
    Journal of Materials Science: Materials in Electronics, 2020, 31 : 2634 - 2642
  • [30] Mechanical and microwave absorption properties of Ti-filled SiCf/SiC composites via precursor infiltration and pyrolysis
    Duan, Shichang
    Zhu, Dongmei
    Zhou, Wancheng
    Luo, Fa
    Chen, Qiang
    JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS, 2020, 31 (03) : 2634 - 2642
12345