A WSi2-HfB2-SiC coating for ultralong-time anti-oxidation at 1973 K

Peipei Wang; Hejun Li; Jing'an Kong; Ruimei Yuan; Yulei Zhang

doi:10.1016/j.corsci.2019.108119

A WSi₂-HfB₂-SiC coating for ultralong-time anti-oxidation at 1973 K

Peipei Wang, Hejun Li, Jing'an Kong, Ruimei Yuan, Yulei Zhang

School of Materials Sience and Engineering

Northwestern Polytechnical University Xian

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

36 Scopus citations

Abstract

In order to improve the oxidation resistance of C/C composites at 1973 K, WSi₂-HfB₂-SiC coating was prepared on the surface of SiC coated C/C composites. Experiment results show that pre-oxidized WSi₂-HfB₂-SiC/SiC coating can protect C/C substrates for 110 h in the air environment at 1973 K. The oxidation products of the coating formed a multiphase glass layer on the surface of the sample, which greatly improved the oxidation resistance of the C/C sample at 1973 K. In addition, the reasons of good oxidation resistance of the coating and its oxidation protection mechanism were also analyzed in this paper.

Original language	English
Article number	108119
Journal	Corrosion Science
Volume	159
DOIs	https://doi.org/10.1016/j.corsci.2019.108119
State	Published - Oct 2019

Keywords

1973 K
Carbon/carbon composites
Coating
Oxidation

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10.1016/j.corsci.2019.108119

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title = "A WSi2-HfB2-SiC coating for ultralong-time anti-oxidation at 1973 K",

abstract = "In order to improve the oxidation resistance of C/C composites at 1973 K, WSi2-HfB2-SiC coating was prepared on the surface of SiC coated C/C composites. Experiment results show that pre-oxidized WSi2-HfB2-SiC/SiC coating can protect C/C substrates for 110 h in the air environment at 1973 K. The oxidation products of the coating formed a multiphase glass layer on the surface of the sample, which greatly improved the oxidation resistance of the C/C sample at 1973 K. In addition, the reasons of good oxidation resistance of the coating and its oxidation protection mechanism were also analyzed in this paper.",

keywords = "1973 K, Carbon/carbon composites, Coating, Oxidation",

author = "Peipei Wang and Hejun Li and Jing'an Kong and Ruimei Yuan and Yulei Zhang",

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AU - Wang, Peipei

AU - Li, Hejun

AU - Kong, Jing'an

AU - Yuan, Ruimei

AU - Zhang, Yulei

PY - 2019/10

Y1 - 2019/10

N2 - In order to improve the oxidation resistance of C/C composites at 1973 K, WSi2-HfB2-SiC coating was prepared on the surface of SiC coated C/C composites. Experiment results show that pre-oxidized WSi2-HfB2-SiC/SiC coating can protect C/C substrates for 110 h in the air environment at 1973 K. The oxidation products of the coating formed a multiphase glass layer on the surface of the sample, which greatly improved the oxidation resistance of the C/C sample at 1973 K. In addition, the reasons of good oxidation resistance of the coating and its oxidation protection mechanism were also analyzed in this paper.

AB - In order to improve the oxidation resistance of C/C composites at 1973 K, WSi2-HfB2-SiC coating was prepared on the surface of SiC coated C/C composites. Experiment results show that pre-oxidized WSi2-HfB2-SiC/SiC coating can protect C/C substrates for 110 h in the air environment at 1973 K. The oxidation products of the coating formed a multiphase glass layer on the surface of the sample, which greatly improved the oxidation resistance of the C/C sample at 1973 K. In addition, the reasons of good oxidation resistance of the coating and its oxidation protection mechanism were also analyzed in this paper.

KW - 1973 K

KW - Carbon/carbon composites

KW - Coating

KW - Oxidation

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DO - 10.1016/j.corsci.2019.108119

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SN - 0010-938X

VL - 159

JO - Corrosion Science

JF - Corrosion Science

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ER -

A WSi₂-HfB₂-SiC coating for ultralong-time anti-oxidation at 1973 K

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