Yttrium silicate oxidation protective coating for SiC coated carbon/carbon composites

Jian Feng Huang; He Jun Li; Xie Rong Zeng; Ke Zhi Li

doi:10.1016/j.ceramint.2005.03.018

Yttrium silicate oxidation protective coating for SiC coated carbon/carbon composites

Jian Feng Huang, He Jun Li, Xie Rong Zeng, Ke Zhi Li

School of Materials Sience and Engineering

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

90 Scopus citations

Abstract

Four kinds of yttrium silicate oxidation protective coatings SiO ₂·Y₂O₃, 1.5SiO₂·Y ₂O₃, 1.5SiO₂·Y₂O ₃/SiO₂·Y₂O₃ and 2SiO ₂·Y₂O₃/1.5SiO₂·Y ₂O₃/SiO₂·Y₂O₃ were prepared by plasma spray on the surface of SiC pre-coated carbon/carbon composites. The structures of the coatings were characterized by XRD, SEM and EDS analyses. It was shown that the gradied 2SiO₂·Y ₂O₃/1.5SiO₂·Y₂O ₃/SiO₂·Y₂O₃ multi-layer coating had better high-temperature oxidation resistance. It could protect carbon/carbon composites from oxidation at 1773 K in air for 73 h with a weight loss of less than 2%. The oxidation activation energy of the coated carbon/carbon composites is 87.3 kJ/mol, and the oxidation process in C/C substrates with a multi-layer coating was controlled by the rate of oxygen diffusion through the holes in the coating.

Original language	English
Pages (from-to)	417-421
Number of pages	5
Journal	Ceramics International
Volume	32
Issue number	4
DOIs	https://doi.org/10.1016/j.ceramint.2005.03.018
State	Published - 2006

Keywords

B. Composites
D. Carbon
Oxidation
Thermal spray coatings

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title = "Yttrium silicate oxidation protective coating for SiC coated carbon/carbon composites",

abstract = "Four kinds of yttrium silicate oxidation protective coatings SiO 2·Y2O3, 1.5SiO2·Y 2O3, 1.5SiO2·Y2O 3/SiO2·Y2O3 and 2SiO 2·Y2O3/1.5SiO2·Y 2O3/SiO2·Y2O3 were prepared by plasma spray on the surface of SiC pre-coated carbon/carbon composites. The structures of the coatings were characterized by XRD, SEM and EDS analyses. It was shown that the gradied 2SiO2·Y 2O3/1.5SiO2·Y2O 3/SiO2·Y2O3 multi-layer coating had better high-temperature oxidation resistance. It could protect carbon/carbon composites from oxidation at 1773 K in air for 73 h with a weight loss of less than 2%. The oxidation activation energy of the coated carbon/carbon composites is 87.3 kJ/mol, and the oxidation process in C/C substrates with a multi-layer coating was controlled by the rate of oxygen diffusion through the holes in the coating.",

keywords = "B. Composites, D. Carbon, Oxidation, Thermal spray coatings",

author = "Huang, {Jian Feng} and Li, {He Jun} and Zeng, {Xie Rong} and Li, {Ke Zhi}",

year = "2006",

doi = "10.1016/j.ceramint.2005.03.018",

language = "英语",

volume = "32",

pages = "417--421",

journal = "Ceramics International",

issn = "0272-8842",

publisher = "Elsevier Ltd",

number = "4",

}

TY - JOUR

T1 - Yttrium silicate oxidation protective coating for SiC coated carbon/carbon composites

AU - Huang, Jian Feng

AU - Li, He Jun

AU - Zeng, Xie Rong

AU - Li, Ke Zhi

PY - 2006

Y1 - 2006

N2 - Four kinds of yttrium silicate oxidation protective coatings SiO 2·Y2O3, 1.5SiO2·Y 2O3, 1.5SiO2·Y2O 3/SiO2·Y2O3 and 2SiO 2·Y2O3/1.5SiO2·Y 2O3/SiO2·Y2O3 were prepared by plasma spray on the surface of SiC pre-coated carbon/carbon composites. The structures of the coatings were characterized by XRD, SEM and EDS analyses. It was shown that the gradied 2SiO2·Y 2O3/1.5SiO2·Y2O 3/SiO2·Y2O3 multi-layer coating had better high-temperature oxidation resistance. It could protect carbon/carbon composites from oxidation at 1773 K in air for 73 h with a weight loss of less than 2%. The oxidation activation energy of the coated carbon/carbon composites is 87.3 kJ/mol, and the oxidation process in C/C substrates with a multi-layer coating was controlled by the rate of oxygen diffusion through the holes in the coating.

AB - Four kinds of yttrium silicate oxidation protective coatings SiO 2·Y2O3, 1.5SiO2·Y 2O3, 1.5SiO2·Y2O 3/SiO2·Y2O3 and 2SiO 2·Y2O3/1.5SiO2·Y 2O3/SiO2·Y2O3 were prepared by plasma spray on the surface of SiC pre-coated carbon/carbon composites. The structures of the coatings were characterized by XRD, SEM and EDS analyses. It was shown that the gradied 2SiO2·Y 2O3/1.5SiO2·Y2O 3/SiO2·Y2O3 multi-layer coating had better high-temperature oxidation resistance. It could protect carbon/carbon composites from oxidation at 1773 K in air for 73 h with a weight loss of less than 2%. The oxidation activation energy of the coated carbon/carbon composites is 87.3 kJ/mol, and the oxidation process in C/C substrates with a multi-layer coating was controlled by the rate of oxygen diffusion through the holes in the coating.

KW - B. Composites

KW - D. Carbon

KW - Oxidation

KW - Thermal spray coatings

UR - http://www.scopus.com/inward/record.url?scp=33344469198&partnerID=8YFLogxK

U2 - 10.1016/j.ceramint.2005.03.018

DO - 10.1016/j.ceramint.2005.03.018

M3 - 文章

AN - SCOPUS:33344469198

SN - 0272-8842

VL - 32

SP - 417

EP - 421

JO - Ceramics International

JF - Ceramics International

IS - 4

ER -

Yttrium silicate oxidation protective coating for SiC coated carbon/carbon composites

Abstract

Keywords

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