TY - GEN
T1 - Effect of water vapor on the oxidation behavior of CVD-BCx
AU - Zhang, Weihua
AU - Cheng, Laifei
AU - Liu, Yongsheng
AU - Luan, Xi N.Gang
PY - 2014
Y1 - 2014
N2 - Boron carbide is the basic constituent of multi-layered self-healing ceramic matrix composites. In this paper, BCx was prepared by Chemical Vapor Deposition (CVD). Oxidation behavior of CVD-BCx was investigated under wet oxygen atmospheres at the temperature ranged from 700 to 1200°C, combined with the thermodynamic calculation of B2O 3 volatilization with water vapor. The oxidation mechanism of CVD-BCx and the effect of water vapor on the oxidation behavior of CVD-BCx were analyzed. It is found that, at intermediate temperature (700°C), with the increment of water vapor content, oxidation of CVD-BC x turns from passive mode to active mode. While at high temperature (1000-1200°C), the influence of water vapor on the oxidation behavior of CVD-BCx becomes less, the temperature is the main factor influencing the oxidation of CVD-BCx.
AB - Boron carbide is the basic constituent of multi-layered self-healing ceramic matrix composites. In this paper, BCx was prepared by Chemical Vapor Deposition (CVD). Oxidation behavior of CVD-BCx was investigated under wet oxygen atmospheres at the temperature ranged from 700 to 1200°C, combined with the thermodynamic calculation of B2O 3 volatilization with water vapor. The oxidation mechanism of CVD-BCx and the effect of water vapor on the oxidation behavior of CVD-BCx were analyzed. It is found that, at intermediate temperature (700°C), with the increment of water vapor content, oxidation of CVD-BC x turns from passive mode to active mode. While at high temperature (1000-1200°C), the influence of water vapor on the oxidation behavior of CVD-BCx becomes less, the temperature is the main factor influencing the oxidation of CVD-BCx.
UR - http://www.scopus.com/inward/record.url?scp=84903983553&partnerID=8YFLogxK
U2 - 10.1002/9781118932995.ch28
DO - 10.1002/9781118932995.ch28
M3 - 会议稿件
AN - SCOPUS:84903983553
SN - 9781118932988
T3 - Ceramic Transactions
SP - 261
EP - 270
BT - High Temperature Ceramic Matrix Composites 8 - A Collection of Papers Presented at the HTCMC 2013 Conference
PB - American Ceramic Society
T2 - 8th High Temperature Ceramic Matrix Composites Conference, HTCMC 2013
Y2 - 22 September 2013 through 26 September 2013
ER -