Effect of heat-treatment on the oxidation resistance of Mo-Si-N coating for C/C composites

Zhong Hong Lai; Jing Chuan Zhu; Jae Ho Jeon; Zhong Da Yin

Effect of heat-treatment on the oxidation resistance of Mo-Si-N coating for C/C composites

Zhong Hong Lai^*
, Jing Chuan Zhu
, Jae Ho Jeon
, Zhong Da Yin

^*Corresponding author for this work

Harbin Institute of Technology
Korea Institute of Machinery and Materials

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

Abstract

To improve the oxidation resistance of Mo-Si fused slurry coating synthesized in vacuum, the Mo-Si-N coating on C/C composites was in situ fabricated in nitrogen atmospheres using Mo and Si element powder by means of fused slurry. The effect of 1400°C pre-oxidation heat-treatment on the microstructure and oxidation resistance of the Mo-Si-N coating was studied by X-ray diffractometry, optical microscopy, scanning electron microscopy with energy dispersion spectroscopy, X-ray photoelectron spectroscopy and weighing method after oxidation. The results indicate that the Mo-Si-N coating contain three layers: Si₃N₄/SiC/Si outer-layer, MoSi₂/Si main layer and SiC inner-layer. The Mo-Si-N coating has excellent oxidation resistance at 1400°C and good anti-oxidation ability at 1450°C. The pre-oxidation heat-treatment at 1400°C significantly improves the oxidation resistance of the Mo-Si-N coating, and the anti-oxidizing temperature can be raised to 1500°C and the weight loss is less than lwt% after 12-hour oxidizing test.

Original language	English
Pages (from-to)	150-153
Number of pages	4
Journal	Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment
Volume	28
Issue number	SUPPL.
State	Published - Aug 2007
Externally published	Yes

Keywords

C/C composites
Coating
Fused-slurry
Heat treatment
Oxidation resistance

Cite this

@article{1a335efb2b994b6e924155a6dc8cfe18,

title = "Effect of heat-treatment on the oxidation resistance of Mo-Si-N coating for C/C composites",

abstract = "To improve the oxidation resistance of Mo-Si fused slurry coating synthesized in vacuum, the Mo-Si-N coating on C/C composites was in situ fabricated in nitrogen atmospheres using Mo and Si element powder by means of fused slurry. The effect of 1400°C pre-oxidation heat-treatment on the microstructure and oxidation resistance of the Mo-Si-N coating was studied by X-ray diffractometry, optical microscopy, scanning electron microscopy with energy dispersion spectroscopy, X-ray photoelectron spectroscopy and weighing method after oxidation. The results indicate that the Mo-Si-N coating contain three layers: Si3N4 /SiC/Si outer-layer, MoSi2 /Si main layer and SiC inner-layer. The Mo-Si-N coating has excellent oxidation resistance at 1400°C and good anti-oxidation ability at 1450°C. The pre-oxidation heat-treatment at 1400°C significantly improves the oxidation resistance of the Mo-Si-N coating, and the anti-oxidizing temperature can be raised to 1500°C and the weight loss is less than lwt\% after 12-hour oxidizing test.",

keywords = "C/C composites, Coating, Fused-slurry, Heat treatment, Oxidation resistance",

author = "Lai, \{Zhong Hong\} and Zhu, \{Jing Chuan\} and Jeon, \{Jae Ho\} and Yin, \{Zhong Da\}",

year = "2007",

month = aug,

language = "英语",

volume = "28",

pages = "150--153",

journal = "Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment",

issn = "1009-6264",

publisher = "Chinese Mechanical Engineering Society",

number = "SUPPL.",

}

TY - JOUR

T1 - Effect of heat-treatment on the oxidation resistance of Mo-Si-N coating for C/C composites

AU - Lai, Zhong Hong

AU - Zhu, Jing Chuan

AU - Jeon, Jae Ho

AU - Yin, Zhong Da

PY - 2007/8

Y1 - 2007/8

N2 - To improve the oxidation resistance of Mo-Si fused slurry coating synthesized in vacuum, the Mo-Si-N coating on C/C composites was in situ fabricated in nitrogen atmospheres using Mo and Si element powder by means of fused slurry. The effect of 1400°C pre-oxidation heat-treatment on the microstructure and oxidation resistance of the Mo-Si-N coating was studied by X-ray diffractometry, optical microscopy, scanning electron microscopy with energy dispersion spectroscopy, X-ray photoelectron spectroscopy and weighing method after oxidation. The results indicate that the Mo-Si-N coating contain three layers: Si3N4 /SiC/Si outer-layer, MoSi2 /Si main layer and SiC inner-layer. The Mo-Si-N coating has excellent oxidation resistance at 1400°C and good anti-oxidation ability at 1450°C. The pre-oxidation heat-treatment at 1400°C significantly improves the oxidation resistance of the Mo-Si-N coating, and the anti-oxidizing temperature can be raised to 1500°C and the weight loss is less than lwt% after 12-hour oxidizing test.

AB - To improve the oxidation resistance of Mo-Si fused slurry coating synthesized in vacuum, the Mo-Si-N coating on C/C composites was in situ fabricated in nitrogen atmospheres using Mo and Si element powder by means of fused slurry. The effect of 1400°C pre-oxidation heat-treatment on the microstructure and oxidation resistance of the Mo-Si-N coating was studied by X-ray diffractometry, optical microscopy, scanning electron microscopy with energy dispersion spectroscopy, X-ray photoelectron spectroscopy and weighing method after oxidation. The results indicate that the Mo-Si-N coating contain three layers: Si3N4 /SiC/Si outer-layer, MoSi2 /Si main layer and SiC inner-layer. The Mo-Si-N coating has excellent oxidation resistance at 1400°C and good anti-oxidation ability at 1450°C. The pre-oxidation heat-treatment at 1400°C significantly improves the oxidation resistance of the Mo-Si-N coating, and the anti-oxidizing temperature can be raised to 1500°C and the weight loss is less than lwt% after 12-hour oxidizing test.

KW - C/C composites

KW - Coating

KW - Fused-slurry

KW - Heat treatment

KW - Oxidation resistance

UR - https://www.scopus.com/pages/publications/35349024308

M3 - 文章

AN - SCOPUS:35349024308

SN - 1009-6264

VL - 28

SP - 150

EP - 153

JO - Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment

JF - Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment

IS - SUPPL.

ER -

Effect of heat-treatment on the oxidation resistance of Mo-Si-N coating for C/C composites

Abstract

Keywords

Other files and links

Fingerprint

Cite this