Paper Title:
Preparation of C/C-SiC Composite with Hydrogen-Containing Polysiloxane as Ceramic Precursor
  Abstract

This study focuses on the conditions of preparation of C/C-SiC composites through polymer infiltration and pyrolysis method using hydrogen-containing polysiloxane as the precursor and divinylbenzene as cross-linking agent. The densities of different C/C composites (ρ=1.02, 1.21, 1.60, 1.78g·cm-3) increased to 1.24, 1.36, 1.69, 1.84g·cm-3 respectively after infiltration and pyrolysis four times. The appropriate ratio of hydrogen-containing polysiloxane and divinylbenzene was 1/0.5. The appropriate cross-linking temperature was 250°C. In pyrolysis process, the appropriate increasing rate of pyrolysis temperature should be 50°C/h in the range of 300-800°C. SiC was formed when pyrolysis temperature reached 1550°C.The linear ablation rate and mass ablation rate of C/C-SiC composites were much lower than those of C/C composites.

  Info
Periodical
Advanced Materials Research (Volumes 239-242)
Edited by
Zhong Cao, Xueqiang Cao, Lixian Sun, Yinghe He
Pages
2932-2936
DOI
10.4028/www.scientific.net/AMR.239-242.2932
Citation
M. J. Gao, L. Chen, Y. S. Hua, J. B. Zhang, J. F. Pan, C. J. Zhou, M. S. Ren, J. L. Sun, "Preparation of C/C-SiC Composite with Hydrogen-Containing Polysiloxane as Ceramic Precursor", Advanced Materials Research, Vols. 239-242, pp. 2932-2936, 2011
Online since
May 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: Yu Di Zhang, Chang Rui Zhang, Hai Feng Hu, Yong Lian Zhou
Abstract:Ultra high temperature ceramic matrix composites (UHTCC) are being considered as the most promising materials for leading edge and nose cap...
1771
Authors: Cong Zhang, Liu Qin, Hua Chun Yu
Chapter 1: Properties and Technological Characteristics of Polymeric and Composite Materials
Abstract:Super light micro foam particles of isotactic polypropylene (IPP) is prepared by the process of rapid evaporation method. The experiment uses...
22