Effect of water vapor on the oxidation behavior of CVD-BCX

Weihua Zhang; Laifei Cheng; Yongsheng Liu; Xin’gang Luan

doi:10.1002/9781118932995.ch28

Effect of water vapor on the oxidation behavior of CVD-BC_X

Weihua Zhang, Laifei Cheng, Yongsheng Liu, Xin’gang Luan

School of Materials Sience and Engineering

Northwestern Polytechnical University Xian

Research output: Chapter in Book/Report/Conference proceeding › Chapter › peer-review

Abstract

Boron carbide is the basic constituent of multi-layered self-healing ceramic matrix composites. In this paper, BC_X was prepared by Chemical Vapor Deposition (CVD). Oxidation behavior of CVD-BC_X was investigated under wet oxygen atmospheres at the temperature ranged from 700 to 1200 °C, combined with the thermodynamic calculation of B₂O₃ volatilization with water vapor. The oxidation mechanism of CVD-BC_X and the effect of water vapor on the oxidation behavior of CVD-BC_X 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-BC_X becomes less, the temperature is the main factor influencing the oxidation of CVD-BC_X.

Original language	English
Title of host publication	High Temperature Ceramic Matrix Composites 8
Publisher	wiley
Pages	261-270
Number of pages	10
ISBN (Electronic)	9781118932995
ISBN (Print)	9781118932988
DOIs	https://doi.org/10.1002/9781118932995.ch28
State	Published - 1 Jan 2014

Keywords

Ceramic matrix composites
Chemical vapor deposition
Oxidation
Thermodynamics
Water vapor

Access to Document

10.1002/9781118932995.ch28

Cite this

@inbook{f5e2d61a312a4336a3afc70016e58cd1,

title = "Effect of water vapor on the oxidation behavior of CVD-BCX",

abstract = "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 B2O3 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-BCX 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.",

keywords = "Ceramic matrix composites, Chemical vapor deposition, Oxidation, Thermodynamics, Water vapor",

author = "Weihua Zhang and Laifei Cheng and Yongsheng Liu and Xin{\textquoteright}gang Luan",

year = "2014",

month = jan,

day = "1",

doi = "10.1002/9781118932995.ch28",

language = "英语",

isbn = "9781118932988",

pages = "261--270",

booktitle = "High Temperature Ceramic Matrix Composites 8",

publisher = "wiley",

}

TY - CHAP

T1 - Effect of water vapor on the oxidation behavior of CVD-BCX

AU - Zhang, Weihua

AU - Cheng, Laifei

AU - Liu, Yongsheng

AU - Luan, Xin’gang

PY - 2014/1/1

Y1 - 2014/1/1

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 B2O3 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-BCX 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 B2O3 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-BCX 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.

KW - Ceramic matrix composites

KW - Chemical vapor deposition

KW - Oxidation

KW - Thermodynamics

KW - Water vapor

UR - http://www.scopus.com/inward/record.url?scp=85101890997&partnerID=8YFLogxK

U2 - 10.1002/9781118932995.ch28

DO - 10.1002/9781118932995.ch28

M3 - 章节

AN - SCOPUS:85101890997

SN - 9781118932988

SP - 261

EP - 270

BT - High Temperature Ceramic Matrix Composites 8

PB - wiley

ER -

Effect of water vapor on the oxidation behavior of CVD-BC_X

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this