Oxidation behaviour and mechansim of MoSi2-CrSi2-SiC-Si coating for carbon/carbon composites from room temperature to 1873 K

Tao Feng; He Jun Li; Man Hong Hu; Lu Li

doi:10.1051/matecconf/20153003002

Oxidation behaviour and mechansim of MoSi₂-CrSi₂-SiC-Si coating for carbon/carbon composites from room temperature to 1873 K

Tao Feng, He Jun Li, Man Hong Hu, Lu Li

School of Materials Sience and Engineering

Northwestern Polytechnical University Xian

Research output: Contribution to journal › Conference article › peer-review

1 Scopus citations

Abstract

A MoSi₂-CrSi₂-SiC-Si coating was prepared on the surface of carbon/carbon (C/C) composites by a two-step pack cementation method. The microstructure and oxidation behaviour of the coating were studied. These results illustrated that the coating could effectively protect C/C composites from oxidation from oxidation in air above 1600 K, due to the protection of the compound glass. The weight loss of the coated C/C specimens was only 0.4% after oxidation at 1873 K for more than 150 h. The coating lacked effective oxidation resistance for C/C composites from 800 to 1600 K, as no obvious glass layer covered the coating surface and the cracks cannot be sealed because of the high viscosity of the compound glass.

Original language	English
Article number	03002
Journal	MATEC Web of Conferences
Volume	30
DOIs	https://doi.org/10.1051/matecconf/20153003002
State	Published - 4 Nov 2015
Event	4th International Conference on Material Science and Engineering Technology, ICMSET 2015 - Singapore, Singapore Duration: 26 Oct 2015 → 28 Oct 2015

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title = "Oxidation behaviour and mechansim of MoSi2-CrSi2-SiC-Si coating for carbon/carbon composites from room temperature to 1873 K",

abstract = "A MoSi2-CrSi2-SiC-Si coating was prepared on the surface of carbon/carbon (C/C) composites by a two-step pack cementation method. The microstructure and oxidation behaviour of the coating were studied. These results illustrated that the coating could effectively protect C/C composites from oxidation from oxidation in air above 1600 K, due to the protection of the compound glass. The weight loss of the coated C/C specimens was only 0.4% after oxidation at 1873 K for more than 150 h. The coating lacked effective oxidation resistance for C/C composites from 800 to 1600 K, as no obvious glass layer covered the coating surface and the cracks cannot be sealed because of the high viscosity of the compound glass.",

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TY - JOUR

T1 - Oxidation behaviour and mechansim of MoSi2-CrSi2-SiC-Si coating for carbon/carbon composites from room temperature to 1873 K

AU - Feng, Tao

AU - Li, He Jun

AU - Hu, Man Hong

AU - Li, Lu

N1 - Publisher Copyright: © Owned by the authors, published by EDP Sciences, 2015.

PY - 2015/11/4

Y1 - 2015/11/4

N2 - A MoSi2-CrSi2-SiC-Si coating was prepared on the surface of carbon/carbon (C/C) composites by a two-step pack cementation method. The microstructure and oxidation behaviour of the coating were studied. These results illustrated that the coating could effectively protect C/C composites from oxidation from oxidation in air above 1600 K, due to the protection of the compound glass. The weight loss of the coated C/C specimens was only 0.4% after oxidation at 1873 K for more than 150 h. The coating lacked effective oxidation resistance for C/C composites from 800 to 1600 K, as no obvious glass layer covered the coating surface and the cracks cannot be sealed because of the high viscosity of the compound glass.

AB - A MoSi2-CrSi2-SiC-Si coating was prepared on the surface of carbon/carbon (C/C) composites by a two-step pack cementation method. The microstructure and oxidation behaviour of the coating were studied. These results illustrated that the coating could effectively protect C/C composites from oxidation from oxidation in air above 1600 K, due to the protection of the compound glass. The weight loss of the coated C/C specimens was only 0.4% after oxidation at 1873 K for more than 150 h. The coating lacked effective oxidation resistance for C/C composites from 800 to 1600 K, as no obvious glass layer covered the coating surface and the cracks cannot be sealed because of the high viscosity of the compound glass.

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U2 - 10.1051/matecconf/20153003002

DO - 10.1051/matecconf/20153003002

M3 - 会议文章

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SN - 2261-236X

VL - 30

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T2 - 4th International Conference on Material Science and Engineering Technology, ICMSET 2015

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ER -

Oxidation behaviour and mechansim of MoSi₂-CrSi₂-SiC-Si coating for carbon/carbon composites from room temperature to 1873 K

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