Oxidation resistant graded multiphase coating for carbon/carbon composites

Xuanru Ren; Hejun Li; Qiangang Fu; Yanhui Chu; Kezhi Li

doi:10.1016/j.surfcoat.2013.06.105

Oxidation resistant graded multiphase coating for carbon/carbon composites

Xuanru Ren, Hejun Li, Qiangang Fu, Yanhui Chu, Kezhi Li

School of Materials Sience and Engineering

Northwestern Polytechnical University Xian

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

35 Scopus citations

Abstract

A double layer TaB₂-TaSi₂-SiC-Si/TaC-SiC coating was prepared on the surface of C/C composites to improve the oxidation resistance of the composites, which was prepared by in situ reaction method through pack cementation technique. The phase composition and microstructures of the multiphase coating were characterized by XRD and SEM-EDS. The inner coating is composed of TaC and SiC, while the outer multiphase coating is composed of TaB₂, TaSi₂, SiC and Si. The multilayer coating is about 200μm in thickness and does not display penetrating crack or big cavities. The coating could protect C/C from oxidation at 1773K in air for 330h with only 0.9% weight loss, thanks to the formed silicate glass layer containing SiO₂ and tantalum oxides.

Original language	English
Pages (from-to)	821-826
Number of pages	6
Journal	Surface and Coatings Technology
Volume	232
DOIs	https://doi.org/10.1016/j.surfcoat.2013.06.105
State	Published - 15 Oct 2013

Keywords

Carbon/carbon composites
Coating
Oxidation resistance
TaB
TaC

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10.1016/j.surfcoat.2013.06.105

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title = "Oxidation resistant graded multiphase coating for carbon/carbon composites",

abstract = "A double layer TaB2-TaSi2-SiC-Si/TaC-SiC coating was prepared on the surface of C/C composites to improve the oxidation resistance of the composites, which was prepared by in situ reaction method through pack cementation technique. The phase composition and microstructures of the multiphase coating were characterized by XRD and SEM-EDS. The inner coating is composed of TaC and SiC, while the outer multiphase coating is composed of TaB2, TaSi2, SiC and Si. The multilayer coating is about 200μm in thickness and does not display penetrating crack or big cavities. The coating could protect C/C from oxidation at 1773K in air for 330h with only 0.9% weight loss, thanks to the formed silicate glass layer containing SiO2 and tantalum oxides.",

keywords = "Carbon/carbon composites, Coating, Oxidation resistance, TaB, TaC",

author = "Xuanru Ren and Hejun Li and Qiangang Fu and Yanhui Chu and Kezhi Li",

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doi = "10.1016/j.surfcoat.2013.06.105",

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journal = "Surface and Coatings Technology",

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TY - JOUR

T1 - Oxidation resistant graded multiphase coating for carbon/carbon composites

AU - Ren, Xuanru

AU - Li, Hejun

AU - Fu, Qiangang

AU - Chu, Yanhui

AU - Li, Kezhi

PY - 2013/10/15

Y1 - 2013/10/15

N2 - A double layer TaB2-TaSi2-SiC-Si/TaC-SiC coating was prepared on the surface of C/C composites to improve the oxidation resistance of the composites, which was prepared by in situ reaction method through pack cementation technique. The phase composition and microstructures of the multiphase coating were characterized by XRD and SEM-EDS. The inner coating is composed of TaC and SiC, while the outer multiphase coating is composed of TaB2, TaSi2, SiC and Si. The multilayer coating is about 200μm in thickness and does not display penetrating crack or big cavities. The coating could protect C/C from oxidation at 1773K in air for 330h with only 0.9% weight loss, thanks to the formed silicate glass layer containing SiO2 and tantalum oxides.

AB - A double layer TaB2-TaSi2-SiC-Si/TaC-SiC coating was prepared on the surface of C/C composites to improve the oxidation resistance of the composites, which was prepared by in situ reaction method through pack cementation technique. The phase composition and microstructures of the multiphase coating were characterized by XRD and SEM-EDS. The inner coating is composed of TaC and SiC, while the outer multiphase coating is composed of TaB2, TaSi2, SiC and Si. The multilayer coating is about 200μm in thickness and does not display penetrating crack or big cavities. The coating could protect C/C from oxidation at 1773K in air for 330h with only 0.9% weight loss, thanks to the formed silicate glass layer containing SiO2 and tantalum oxides.

KW - Carbon/carbon composites

KW - Coating

KW - Oxidation resistance

KW - TaB

KW - TaC

UR - http://www.scopus.com/inward/record.url?scp=84883465418&partnerID=8YFLogxK

U2 - 10.1016/j.surfcoat.2013.06.105

DO - 10.1016/j.surfcoat.2013.06.105

M3 - 文章

AN - SCOPUS:84883465418

SN - 0257-8972

VL - 232

SP - 821

EP - 826

JO - Surface and Coatings Technology

JF - Surface and Coatings Technology

ER -

Oxidation resistant graded multiphase coating for carbon/carbon composites

Abstract

Keywords

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