Effect of heat flux on ablation behaviour and mechanism of C/C-ZrB2-SiC composite under oxyacetylene torch flame

He jun Li; Xi yuan Yao; Yu lei Zhang; Ke zhi Li; Ling jun Guo; Lei Liu

doi:10.1016/j.corsci.2013.04.052

Effect of heat flux on ablation behaviour and mechanism of C/C-ZrB₂-SiC composite under oxyacetylene torch flame

He jun Li, Xi yuan Yao, Yu lei Zhang, Ke zhi Li, Ling jun Guo, Lei Liu

School of Materials Sience and Engineering

Northwestern Polytechnical University Xian

Research output: Contribution to journal › Article › peer-review

100 Scopus citations

Abstract

The ablation property of C/C-ZrB₂-SiC composite under oxyacetylene torch flame with different heat flux was investigated. The ablation performance decreased with the increase of heat flux from 2400 to 4200kW/m² and the ablation mechanism changed from chemical erosion to mechanical denudation. The good ablation resistance under 2400kW/m² is attributed to the formation of SiO₂-ZrO₂ mixture. When heat flux is 3200kW/m², the formation of ZrO₂ can partly prevent the diffusion of oxygen and provide ablation protection. But with heat flux increasing, the increase of mechanical denudation results in the reduction of ablation performance.

Original language	English
Pages (from-to)	265-270
Number of pages	6
Journal	Corrosion Science
Volume	74
DOIs	https://doi.org/10.1016/j.corsci.2013.04.052
State	Published - Sep 2013

Keywords

A. Ceramic-matrix composites
B. Erosion
C. Oxidation

Access to Document

10.1016/j.corsci.2013.04.052

Cite this

@article{433b5dad490b40f19cf9a24548791ab7,

title = "Effect of heat flux on ablation behaviour and mechanism of C/C-ZrB2-SiC composite under oxyacetylene torch flame",

abstract = "The ablation property of C/C-ZrB2-SiC composite under oxyacetylene torch flame with different heat flux was investigated. The ablation performance decreased with the increase of heat flux from 2400 to 4200kW/m2 and the ablation mechanism changed from chemical erosion to mechanical denudation. The good ablation resistance under 2400kW/m2 is attributed to the formation of SiO2-ZrO2 mixture. When heat flux is 3200kW/m2, the formation of ZrO2 can partly prevent the diffusion of oxygen and provide ablation protection. But with heat flux increasing, the increase of mechanical denudation results in the reduction of ablation performance.",

keywords = "A. Ceramic-matrix composites, B. Erosion, C. Oxidation",

author = "Li, {He jun} and Yao, {Xi yuan} and Zhang, {Yu lei} and Li, {Ke zhi} and Guo, {Ling jun} and Lei Liu",

year = "2013",

month = sep,

doi = "10.1016/j.corsci.2013.04.052",

language = "英语",

volume = "74",

pages = "265--270",

journal = "Corrosion Science",

issn = "0010-938X",

publisher = "Elsevier Ltd",

}

TY - JOUR

T1 - Effect of heat flux on ablation behaviour and mechanism of C/C-ZrB2-SiC composite under oxyacetylene torch flame

AU - Li, He jun

AU - Yao, Xi yuan

AU - Zhang, Yu lei

AU - Li, Ke zhi

AU - Guo, Ling jun

AU - Liu, Lei

PY - 2013/9

Y1 - 2013/9

N2 - The ablation property of C/C-ZrB2-SiC composite under oxyacetylene torch flame with different heat flux was investigated. The ablation performance decreased with the increase of heat flux from 2400 to 4200kW/m2 and the ablation mechanism changed from chemical erosion to mechanical denudation. The good ablation resistance under 2400kW/m2 is attributed to the formation of SiO2-ZrO2 mixture. When heat flux is 3200kW/m2, the formation of ZrO2 can partly prevent the diffusion of oxygen and provide ablation protection. But with heat flux increasing, the increase of mechanical denudation results in the reduction of ablation performance.

AB - The ablation property of C/C-ZrB2-SiC composite under oxyacetylene torch flame with different heat flux was investigated. The ablation performance decreased with the increase of heat flux from 2400 to 4200kW/m2 and the ablation mechanism changed from chemical erosion to mechanical denudation. The good ablation resistance under 2400kW/m2 is attributed to the formation of SiO2-ZrO2 mixture. When heat flux is 3200kW/m2, the formation of ZrO2 can partly prevent the diffusion of oxygen and provide ablation protection. But with heat flux increasing, the increase of mechanical denudation results in the reduction of ablation performance.

KW - A. Ceramic-matrix composites

KW - B. Erosion

KW - C. Oxidation

UR - http://www.scopus.com/inward/record.url?scp=84879420275&partnerID=8YFLogxK

U2 - 10.1016/j.corsci.2013.04.052

DO - 10.1016/j.corsci.2013.04.052

M3 - 文章

AN - SCOPUS:84879420275

SN - 0010-938X

VL - 74

SP - 265

EP - 270

JO - Corrosion Science

JF - Corrosion Science

ER -

Effect of heat flux on ablation behaviour and mechanism of C/C-ZrB₂-SiC composite under oxyacetylene torch flame

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this