Paper Title:
Ablation Properties of C/C-ZrC-SiC Composites by the Precursor Infiltration Pyrolysis
  Abstract

The ablation properties of C/C-ZrC-SiC composites prepared by precursor infiltration and pyrolysis processes were studied by the H2-O2 ablation method. The results indicate that the ablation rate of C/C-ZrC-SiC composites decreases with increasing density of the composites. The linear ablation rate and mass ablation rate of the C/C-ZrC-SiC composites (ρ=1.69g·cm-3) were 0.00211mm·s-1 and 0.5179mg·s-1, only 20.6% and 31.6% of those of C/C composites (ρ=1.78g·cm-3) respectively. The introduction of ZrC-SiC into the matrix greatly enhanced the anti-oxidative and ablation property of the C/C composite. The ablation mechanisms of the C/C-ZrC-SiC composites were supposed to be the synergistic effects of thermo-chemistry ablation (oxidation and sublimation) and mechanical erosion.

  Info
Periodical
Advanced Materials Research (Volumes 239-242)
Edited by
Zhong Cao, Xueqiang Cao, Lixian Sun, Yinghe He
Pages
1076-1081
DOI
10.4028/www.scientific.net/AMR.239-242.1076
Citation
M. J. Gao, L. Chen, Y. S. Hua, J. B. Zhang, J. F. Pan, C. J. Zhou, M. S. Ren, J. L. Sun, "Ablation Properties of C/C-ZrC-SiC Composites by the Precursor Infiltration Pyrolysis", Advanced Materials Research, Vols. 239-242, pp. 1076-1081, 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: Yong Gang Jiang, Chang Rui Zhang, Feng Cao, Si Qing Wang, Bin Li
Abstract:Braided silica fibers reinforced nitride composite (SFRN), which was prepared by the polymeric precursor infiltration and pyrolysis (PIP)...
980
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: Hai Tang Wu, Wei Gang Zhang
Abstract:ZrB2-SiC-BN ultrahigh-temperature ceramic (UHTC) was fabricated by hot-pressing at 1800°C under 23MPa pressure of argon. Compared to...
2011
Authors: Chang Ling Zhou, Yan Yan Wang, Zhi Qiang Cheng, Chong Hai Wang, Jie Fan, Cheng Gong Sun, Bao Lin Feng
Abstract:ZrB2-SiC and ZrB2-SiC-C ultra-high temperature ceramics (UHTCs) were fabricated by pressureless sintering under an argon atmosphere. The mass...
199
Authors: Meng Jiao Gao, Lai Chen, Yong Sheng Hua, Jia Bao Zhang, Jian Feng Pan, Chun Jie Zhou, Mu Su Ren, Jin Liang Sun
Abstract:This study focuses on the conditions of preparation of C/C-SiC composites through polymer infiltration and pyrolysis method using...
2932