Microstructure and anti-oxidation property of CrSi                         2                         -SiC coating for carbon/carbon composites

Qian Gang Fu; He Jun Li; Xiao Hong Shi; Xiao Ling Liao; Ke Zhi Li; Min Huang

doi:10.1016/j.apsusc.2005.05.018

Microstructure and anti-oxidation property of CrSi ₂ -SiC coating for carbon/carbon composites

Qian Gang Fu
, He Jun Li
, Xiao Hong Shi
, Xiao Ling Liao
, Ke Zhi Li
, Min Huang

School of Materials Sience and Engineering

Northwestern Polytechnical University Xian

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

79 Scopus citations

Abstract

To protect carbon/carbon (C/C) composites from oxidation, a new type of oxidation protective coating has been produced by a two-step pack cementation technique. XRD and SEM analysis show, the coating obtained by the first step pack cementation was a porous β-SiC structure, and a new phase of CrSi ₂ was generated in the porous SiC coating after heat-treatment according to the second step pack cementation process. Oxidation test shows that, the weight loss of the SiC coated C/C is up to 11.26% after 5 h oxidation in air at 1773 K, and the weight loss of the CrSi ₂ -SiC coated C/C composites is only 4.15% after oxidation in air at 1773 K for 34 h. The oxidation of C/C composites was primarily due to the reaction of C/C matrix and oxygen diffusing through the penetrable cracks in the coating.

Original language	English
Pages (from-to)	3475-3480
Number of pages	6
Journal	Applied Surface Science
Volume	252
Issue number	10
DOIs	https://doi.org/10.1016/j.apsusc.2005.05.018
State	Published - 15 Mar 2006

Keywords

Carbon/carbon composites
Coating
Oxidation

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10.1016/j.apsusc.2005.05.018

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@article{211842348eff42df8e3a092af4452131,

title = " Microstructure and anti-oxidation property of CrSi 2 -SiC coating for carbon/carbon composites ",

abstract = " To protect carbon/carbon (C/C) composites from oxidation, a new type of oxidation protective coating has been produced by a two-step pack cementation technique. XRD and SEM analysis show, the coating obtained by the first step pack cementation was a porous β-SiC structure, and a new phase of CrSi 2 was generated in the porous SiC coating after heat-treatment according to the second step pack cementation process. Oxidation test shows that, the weight loss of the SiC coated C/C is up to 11.26\% after 5 h oxidation in air at 1773 K, and the weight loss of the CrSi 2 -SiC coated C/C composites is only 4.15\% after oxidation in air at 1773 K for 34 h. The oxidation of C/C composites was primarily due to the reaction of C/C matrix and oxygen diffusing through the penetrable cracks in the coating.",

keywords = "Carbon/carbon composites, Coating, Oxidation",

author = "Fu, \{Qian Gang\} and Li, \{He Jun\} and Shi, \{Xiao Hong\} and Liao, \{Xiao Ling\} and Li, \{Ke Zhi\} and Min Huang",

year = "2006",

month = mar,

day = "15",

doi = "10.1016/j.apsusc.2005.05.018",

language = "英语",

volume = "252",

pages = "3475--3480",

journal = "Applied Surface Science",

issn = "0169-4332",

publisher = "Elsevier B.V.",

number = "10",

}

Microstructure and anti-oxidation property of CrSi ₂ -SiC coating for carbon/carbon composites . / Fu, Qian Gang ; Li, He Jun; Shi, Xiao Hong et al.
In: Applied Surface Science, Vol. 252, No. 10, 15.03.2006, p. 3475-3480.

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

TY - JOUR

T1 - Microstructure and anti-oxidation property of CrSi 2 -SiC coating for carbon/carbon composites

AU - Fu, Qian Gang

AU - Li, He Jun

AU - Shi, Xiao Hong

AU - Liao, Xiao Ling

AU - Li, Ke Zhi

AU - Huang, Min

PY - 2006/3/15

Y1 - 2006/3/15

N2 - To protect carbon/carbon (C/C) composites from oxidation, a new type of oxidation protective coating has been produced by a two-step pack cementation technique. XRD and SEM analysis show, the coating obtained by the first step pack cementation was a porous β-SiC structure, and a new phase of CrSi 2 was generated in the porous SiC coating after heat-treatment according to the second step pack cementation process. Oxidation test shows that, the weight loss of the SiC coated C/C is up to 11.26% after 5 h oxidation in air at 1773 K, and the weight loss of the CrSi 2 -SiC coated C/C composites is only 4.15% after oxidation in air at 1773 K for 34 h. The oxidation of C/C composites was primarily due to the reaction of C/C matrix and oxygen diffusing through the penetrable cracks in the coating.

AB - To protect carbon/carbon (C/C) composites from oxidation, a new type of oxidation protective coating has been produced by a two-step pack cementation technique. XRD and SEM analysis show, the coating obtained by the first step pack cementation was a porous β-SiC structure, and a new phase of CrSi 2 was generated in the porous SiC coating after heat-treatment according to the second step pack cementation process. Oxidation test shows that, the weight loss of the SiC coated C/C is up to 11.26% after 5 h oxidation in air at 1773 K, and the weight loss of the CrSi 2 -SiC coated C/C composites is only 4.15% after oxidation in air at 1773 K for 34 h. The oxidation of C/C composites was primarily due to the reaction of C/C matrix and oxygen diffusing through the penetrable cracks in the coating.

KW - Carbon/carbon composites

KW - Coating

KW - Oxidation

UR - https://www.scopus.com/pages/publications/32644437179

U2 - 10.1016/j.apsusc.2005.05.018

DO - 10.1016/j.apsusc.2005.05.018

M3 - 文章

AN - SCOPUS:32644437179

SN - 0169-4332

VL - 252

SP - 3475

EP - 3480

JO - Applied Surface Science

JF - Applied Surface Science

IS - 10

ER -

Microstructure and anti-oxidation property of CrSi ₂ -SiC coating for carbon/carbon composites

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Keywords

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