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

78 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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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 - http://www.scopus.com/inward/record.url?scp=32644437179&partnerID=8YFLogxK

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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