Oxidation Protective C/SiC/Si-SiC Multilayer Coating for Carbon/Carbon Composites Applying at 1873 K

Yulei Zhang; Hejun Li; Xinfa Qiang; Kezhi Li

doi:10.1016/S1005-0302(11)60014-5

Oxidation Protective C/SiC/Si-SiC Multilayer Coating for Carbon/Carbon Composites Applying at 1873 K

Yulei Zhang, Hejun Li, Xinfa Qiang, Kezhi Li

School of Materials Sience and Engineering

Northwestern Polytechnical University Xian

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

28 Scopus citations

Abstract

A C/SiC/Si-SiC multilayer coating for protecting carbon/carbon (C/C) composites against oxidation was prepared by slurry and pack cementation. X-ray diffraction (XRD) and energy dispersive spectroscopy (EDS) analysis showed that the inner coating obtained from the slurry and pack cementation was a C/SiC gradient layer acting as bonding layer, and the exterior coating formed in the second pack cementation was a Si-SiC double phase coating. Oxidation tests at 1873 K in air showed that the coating exhibited excellent oxidation protective ability and thermal shock resistance. The coating could effectively protect C/C composites from oxidation at 1873 K in air for 170 h and undergo the thermal cycling between 1873 K and room temperature for 8 cycles. The weight loss of the coated C/C composites is due to the formation of cracks and holes in the coating and the volatilization of SiO₂ glass at high temperature.

Original language	English
Pages (from-to)	1139-1142
Number of pages	4
Journal	Journal of Materials Science and Technology
Volume	26
Issue number	12
DOIs	https://doi.org/10.1016/S1005-0302(11)60014-5
State	Published - Dec 2010

Keywords

Carbon/carbon composites
Coating
Oxidation

Access to Document

10.1016/S1005-0302(11)60014-5

Cite this

@article{01fb1802c8ab4124bd98594318c6a730,

title = "Oxidation Protective C/SiC/Si-SiC Multilayer Coating for Carbon/Carbon Composites Applying at 1873 K",

abstract = "A C/SiC/Si-SiC multilayer coating for protecting carbon/carbon (C/C) composites against oxidation was prepared by slurry and pack cementation. X-ray diffraction (XRD) and energy dispersive spectroscopy (EDS) analysis showed that the inner coating obtained from the slurry and pack cementation was a C/SiC gradient layer acting as bonding layer, and the exterior coating formed in the second pack cementation was a Si-SiC double phase coating. Oxidation tests at 1873 K in air showed that the coating exhibited excellent oxidation protective ability and thermal shock resistance. The coating could effectively protect C/C composites from oxidation at 1873 K in air for 170 h and undergo the thermal cycling between 1873 K and room temperature for 8 cycles. The weight loss of the coated C/C composites is due to the formation of cracks and holes in the coating and the volatilization of SiO2 glass at high temperature.",

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

author = "Yulei Zhang and Hejun Li and Xinfa Qiang and Kezhi Li",

year = "2010",

month = dec,

doi = "10.1016/S1005-0302(11)60014-5",

language = "英语",

volume = "26",

pages = "1139--1142",

journal = "Journal of Materials Science and Technology",

issn = "1005-0302",

publisher = "Chinese Society of Metals",

number = "12",

}

TY - JOUR

T1 - Oxidation Protective C/SiC/Si-SiC Multilayer Coating for Carbon/Carbon Composites Applying at 1873 K

AU - Zhang, Yulei

AU - Li, Hejun

AU - Qiang, Xinfa

AU - Li, Kezhi

PY - 2010/12

Y1 - 2010/12

N2 - A C/SiC/Si-SiC multilayer coating for protecting carbon/carbon (C/C) composites against oxidation was prepared by slurry and pack cementation. X-ray diffraction (XRD) and energy dispersive spectroscopy (EDS) analysis showed that the inner coating obtained from the slurry and pack cementation was a C/SiC gradient layer acting as bonding layer, and the exterior coating formed in the second pack cementation was a Si-SiC double phase coating. Oxidation tests at 1873 K in air showed that the coating exhibited excellent oxidation protective ability and thermal shock resistance. The coating could effectively protect C/C composites from oxidation at 1873 K in air for 170 h and undergo the thermal cycling between 1873 K and room temperature for 8 cycles. The weight loss of the coated C/C composites is due to the formation of cracks and holes in the coating and the volatilization of SiO2 glass at high temperature.

AB - A C/SiC/Si-SiC multilayer coating for protecting carbon/carbon (C/C) composites against oxidation was prepared by slurry and pack cementation. X-ray diffraction (XRD) and energy dispersive spectroscopy (EDS) analysis showed that the inner coating obtained from the slurry and pack cementation was a C/SiC gradient layer acting as bonding layer, and the exterior coating formed in the second pack cementation was a Si-SiC double phase coating. Oxidation tests at 1873 K in air showed that the coating exhibited excellent oxidation protective ability and thermal shock resistance. The coating could effectively protect C/C composites from oxidation at 1873 K in air for 170 h and undergo the thermal cycling between 1873 K and room temperature for 8 cycles. The weight loss of the coated C/C composites is due to the formation of cracks and holes in the coating and the volatilization of SiO2 glass at high temperature.

KW - Carbon/carbon composites

KW - Coating

KW - Oxidation

UR - http://www.scopus.com/inward/record.url?scp=78751610832&partnerID=8YFLogxK

U2 - 10.1016/S1005-0302(11)60014-5

DO - 10.1016/S1005-0302(11)60014-5

M3 - 文章

AN - SCOPUS:78751610832

SN - 1005-0302

VL - 26

SP - 1139

EP - 1142

JO - Journal of Materials Science and Technology

JF - Journal of Materials Science and Technology

IS - 12

ER -

Oxidation Protective C/SiC/Si-SiC Multilayer Coating for Carbon/Carbon Composites Applying at 1873 K

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this