Paper Title:
Microstructure and Properties of Three Phase Carbon and Ceramic Matrix Composites
  Abstract

Sol-Gel technology was used to develop carbon, silicon and oxygen based ceramics as well as their composites with Carbon fiber and nano siliconcarbide as reinforcements. Gels with different composition were prepared from TEOS, HMDSO and DEDMS. Dried gels were post-cured in air and pyrolyzed at 1000oC in nitrogen atmosphere. Each step of sol-gel process was characterized for density, thermal behaviour and functionality. Composites were prepared using different sols (derived from TEOS, HDMSO and DEDMS) as matrix precursors and carbon fabric as reinforcement. To some composites another phase of solid, micro/nano powder precursor of SiC was added to decrease number of impregnation cycles. Latter composites resulted in higher density. Green composites were post-cured and pyrolyzed. These composites were characterized for density and microstructure. It revealed that the resulting matrix was solid glasses and addition of SiC powder facilitated the rapid densification. Composites prepared with SiC nanparticles as well as Carbon fabric as reinforcement exhibit higher flexural strength than those made without nanoparticles. The fracture behaviour is also seen to be of mixed mode failure type.

  Info
Periodical
Edited by
Takashi Goto, Yi-Bing Cheng and Takashi Akatsu
Pages
1-8
DOI
10.4028/www.scientific.net/KEM.484.1
Citation
L. M. Manocha, M. M. Vyas, S. Manocha, P.M. Ralole, "Microstructure and Properties of Three Phase Carbon and Ceramic Matrix Composites", Key Engineering Materials, Vol. 484, pp. 1-8, 2011
Online since
July 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Dong Mei Zhu, Hong Na Du, Fa Luo, Wan Cheng Zhou
Abstract:Porous C/C composite with certain porosity prepared by Chemical vapor infiltration (CVI) was chosen as the preforms to develop the C/C-SiC...
1501
Authors: Ming Liang Luo, Qing Zhi Wen, Hong Jian Liu, Jia Lin Liu
Abstract:Sulfonated-polyethersulfone/TiO2 (SPES/TiO2) nanoparticle composites with different TiO2 content were prepared by a sol-gel process. These...
663
Authors: Yan Yan Lu, Hua Li, Bo Kai Ng, Chen Xin Chen, Hong Mei Kang, Li Jiang, He Zhou Liu
New Functional Materials
Abstract:In this paper, electron beam radiation technology was applied to the preparation of MMT/MWNTs/epoxy nano-composites. The influences of the...
458
Authors: Xian Liang Zhou, Duo Sheng Li, Ai Hua Zou, Xiao Zhen Hua, Zhi Guo Ye, Qing Jun Chen
New Functional Materials
Abstract:SiCp/Al composites were fabricated by ceramic mold freedom infiltration and pressureless infiltration, respectively. The microstructure and...
658
Authors: Mi Dan Li, Yao Lu, Lu Lu Feng, Huan Niu, Ya Wen Kong
Chapter 2: Research on Materials,Mechanics and Technologies
Abstract:Composites made from phenolic resin are filled with conductive filler mixtures containing copper powders, natural graphite powders and carbon...
120