Oxidation and erosion resistant property of SiC/Si-Mo-Cr/MoSi2 multi-layer coated C/C composites

Qiangang Fu; Yucai Shan; Cuiwei Cao; Hejun Li; Kezhi Li

doi:10.1016/j.ceramint.2014.11.105

Oxidation and erosion resistant property of SiC/Si-Mo-Cr/MoSi₂ multi-layer coated C/C composites

Qiangang Fu, Yucai Shan, Cuiwei Cao, Hejun Li, Kezhi Li

School of Materials Sience and Engineering

Northwestern Polytechnical University Xian

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

27 Scopus citations

Abstract

To improve the oxidation and erosion resistance of C/C composites, a multi-layer SiC/Si-Mo-Cr/MoSi₂ coating was prepared on them by a combination technique of pack cementation and a super supersonic plasma spraying technique. X-ray diffraction and scanning electron microscopy were used to analyze the phase and microstructure of the coatings. After a static oxidation test at 1773 K in air for 200 h, compared with the SiC/Si-Mo-Cr coated samples, the mass loss of the SiC/Si-Mo-Cr/MoSi₂ coated samples decreased by 56.1%. After adding a MoSi₂ layer on the SiC/Si-Mo-Cr coating by the super supersonic plasma spraying, the corrosion protection time in a wind tunnel at 1873 K could be prolonged from 93 h to 124 h. The deposited outer MoSi₂ layer could act as oxygen barrier layer and seal the initial penetrating cracks in the SiC/Si-Mo-Cr coating, resulting in the improvement of the oxidation and erosion resistance of the coated samples.

Original language	English
Pages (from-to)	4101-4107
Number of pages	7
Journal	Ceramics International
Volume	41
Issue number	3
DOIs	https://doi.org/10.1016/j.ceramint.2014.11.105
State	Published - 1 Apr 2015

Keywords

C/C composites
Coating
Oxidation resistance

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10.1016/j.ceramint.2014.11.105

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title = "Oxidation and erosion resistant property of SiC/Si-Mo-Cr/MoSi2 multi-layer coated C/C composites",

abstract = "To improve the oxidation and erosion resistance of C/C composites, a multi-layer SiC/Si-Mo-Cr/MoSi2 coating was prepared on them by a combination technique of pack cementation and a super supersonic plasma spraying technique. X-ray diffraction and scanning electron microscopy were used to analyze the phase and microstructure of the coatings. After a static oxidation test at 1773 K in air for 200 h, compared with the SiC/Si-Mo-Cr coated samples, the mass loss of the SiC/Si-Mo-Cr/MoSi2 coated samples decreased by 56.1%. After adding a MoSi2 layer on the SiC/Si-Mo-Cr coating by the super supersonic plasma spraying, the corrosion protection time in a wind tunnel at 1873 K could be prolonged from 93 h to 124 h. The deposited outer MoSi2 layer could act as oxygen barrier layer and seal the initial penetrating cracks in the SiC/Si-Mo-Cr coating, resulting in the improvement of the oxidation and erosion resistance of the coated samples.",

keywords = "C/C composites, Coating, Oxidation resistance",

author = "Qiangang Fu and Yucai Shan and Cuiwei Cao and Hejun Li and Kezhi Li",

note = "Publisher Copyright: {\textcopyright} 2014 Elsevier Ltd and Techna Group S.r.l.",

year = "2015",

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doi = "10.1016/j.ceramint.2014.11.105",

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T1 - Oxidation and erosion resistant property of SiC/Si-Mo-Cr/MoSi2 multi-layer coated C/C composites

AU - Fu, Qiangang

AU - Shan, Yucai

AU - Cao, Cuiwei

AU - Li, Hejun

AU - Li, Kezhi

PY - 2015/4/1

Y1 - 2015/4/1

N2 - To improve the oxidation and erosion resistance of C/C composites, a multi-layer SiC/Si-Mo-Cr/MoSi2 coating was prepared on them by a combination technique of pack cementation and a super supersonic plasma spraying technique. X-ray diffraction and scanning electron microscopy were used to analyze the phase and microstructure of the coatings. After a static oxidation test at 1773 K in air for 200 h, compared with the SiC/Si-Mo-Cr coated samples, the mass loss of the SiC/Si-Mo-Cr/MoSi2 coated samples decreased by 56.1%. After adding a MoSi2 layer on the SiC/Si-Mo-Cr coating by the super supersonic plasma spraying, the corrosion protection time in a wind tunnel at 1873 K could be prolonged from 93 h to 124 h. The deposited outer MoSi2 layer could act as oxygen barrier layer and seal the initial penetrating cracks in the SiC/Si-Mo-Cr coating, resulting in the improvement of the oxidation and erosion resistance of the coated samples.

AB - To improve the oxidation and erosion resistance of C/C composites, a multi-layer SiC/Si-Mo-Cr/MoSi2 coating was prepared on them by a combination technique of pack cementation and a super supersonic plasma spraying technique. X-ray diffraction and scanning electron microscopy were used to analyze the phase and microstructure of the coatings. After a static oxidation test at 1773 K in air for 200 h, compared with the SiC/Si-Mo-Cr coated samples, the mass loss of the SiC/Si-Mo-Cr/MoSi2 coated samples decreased by 56.1%. After adding a MoSi2 layer on the SiC/Si-Mo-Cr coating by the super supersonic plasma spraying, the corrosion protection time in a wind tunnel at 1873 K could be prolonged from 93 h to 124 h. The deposited outer MoSi2 layer could act as oxygen barrier layer and seal the initial penetrating cracks in the SiC/Si-Mo-Cr coating, resulting in the improvement of the oxidation and erosion resistance of the coated samples.

KW - C/C composites

KW - Coating

KW - Oxidation resistance

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DO - 10.1016/j.ceramint.2014.11.105

M3 - 文章

AN - SCOPUS:84921864114

SN - 0272-8842

VL - 41

SP - 4101

EP - 4107

JO - Ceramics International

JF - Ceramics International

IS - 3

ER -

Oxidation and erosion resistant property of SiC/Si-Mo-Cr/MoSi₂ multi-layer coated C/C composites

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Keywords

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