Effect of LaB                         6                          on the thermal shock property of MoSi                          2                         -SiC coating for carbon/carbon composites

Ting Li; Hejun Li; Xiaohong Shi

doi:10.1016/j.apsusc.2012.09.124

Effect of LaB ₆ on the thermal shock property of MoSi ₂ -SiC coating for carbon/carbon composites

Ting Li
, Hejun Li
, Xiaohong Shi

School of Materials Sience and Engineering

Northwestern Polytechnical University Xian

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

34 Scopus citations

Abstract

LaB ₆ -MoSi ₂ -SiC and MoSi ₂ -SiC coatings were prepared on the surface of carbon/carbon composites by pack cementation method. The crystal structures of the coatings were measured by X-ray diffraction. The morphologies and element distributions were also analyzed by scanning electron microscopy and energy dispersive spectroscopy, respectively. The effect of LaB ₆ on the microstructure and thermal shock resistance of MoSi ₂ -SiC coating was investigated. The results indicated that the LaB ₆ -MoSi ₂ -SiC coating possessed a denser structure and superior thermal shock resistance. After 25 times of thermal cycling oxidation between 1773 K and room temperature, the weight losses of the LaB ₆ -MoSi ₂ -SiC and MoSi ₂ -SiC coated samples were 0.627% and 2.019%, respectively.

Original language	English
Pages (from-to)	88-93
Number of pages	6
Journal	Applied Surface Science
Volume	264
DOIs	https://doi.org/10.1016/j.apsusc.2012.09.124
State	Published - 1 Jan 2013

Keywords

Carbon/carbon composites
Thermal cycling oxidation

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10.1016/j.apsusc.2012.09.124

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@article{50bddcc0cf154ec8bf4e6ca1966dbc51,

title = " Effect of LaB 6 on the thermal shock property of MoSi 2 -SiC coating for carbon/carbon composites ",

abstract = " LaB 6 -MoSi 2 -SiC and MoSi 2 -SiC coatings were prepared on the surface of carbon/carbon composites by pack cementation method. The crystal structures of the coatings were measured by X-ray diffraction. The morphologies and element distributions were also analyzed by scanning electron microscopy and energy dispersive spectroscopy, respectively. The effect of LaB 6 on the microstructure and thermal shock resistance of MoSi 2 -SiC coating was investigated. The results indicated that the LaB 6 -MoSi 2 -SiC coating possessed a denser structure and superior thermal shock resistance. After 25 times of thermal cycling oxidation between 1773 K and room temperature, the weight losses of the LaB 6 -MoSi 2 -SiC and MoSi 2 -SiC coated samples were 0.627\% and 2.019\%, respectively.",

keywords = "Carbon/carbon composites, Thermal cycling oxidation",

author = "Ting Li and Hejun Li and Xiaohong Shi",

year = "2013",

month = jan,

day = "1",

doi = "10.1016/j.apsusc.2012.09.124",

language = "英语",

volume = "264",

pages = "88--93",

journal = "Applied Surface Science",

issn = "0169-4332",

publisher = "Elsevier B.V.",

}

Effect of LaB ₆ on the thermal shock property of MoSi ₂ -SiC coating for carbon/carbon composites . / Li, Ting; Li, Hejun; Shi, Xiaohong.
In: Applied Surface Science, Vol. 264, 01.01.2013, p. 88-93.

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

TY - JOUR

T1 - Effect of LaB 6 on the thermal shock property of MoSi 2 -SiC coating for carbon/carbon composites

AU - Li, Ting

AU - Li, Hejun

AU - Shi, Xiaohong

PY - 2013/1/1

Y1 - 2013/1/1

N2 - LaB 6 -MoSi 2 -SiC and MoSi 2 -SiC coatings were prepared on the surface of carbon/carbon composites by pack cementation method. The crystal structures of the coatings were measured by X-ray diffraction. The morphologies and element distributions were also analyzed by scanning electron microscopy and energy dispersive spectroscopy, respectively. The effect of LaB 6 on the microstructure and thermal shock resistance of MoSi 2 -SiC coating was investigated. The results indicated that the LaB 6 -MoSi 2 -SiC coating possessed a denser structure and superior thermal shock resistance. After 25 times of thermal cycling oxidation between 1773 K and room temperature, the weight losses of the LaB 6 -MoSi 2 -SiC and MoSi 2 -SiC coated samples were 0.627% and 2.019%, respectively.

AB - LaB 6 -MoSi 2 -SiC and MoSi 2 -SiC coatings were prepared on the surface of carbon/carbon composites by pack cementation method. The crystal structures of the coatings were measured by X-ray diffraction. The morphologies and element distributions were also analyzed by scanning electron microscopy and energy dispersive spectroscopy, respectively. The effect of LaB 6 on the microstructure and thermal shock resistance of MoSi 2 -SiC coating was investigated. The results indicated that the LaB 6 -MoSi 2 -SiC coating possessed a denser structure and superior thermal shock resistance. After 25 times of thermal cycling oxidation between 1773 K and room temperature, the weight losses of the LaB 6 -MoSi 2 -SiC and MoSi 2 -SiC coated samples were 0.627% and 2.019%, respectively.

KW - Carbon/carbon composites

KW - Thermal cycling oxidation

UR - https://www.scopus.com/pages/publications/84870530776

U2 - 10.1016/j.apsusc.2012.09.124

DO - 10.1016/j.apsusc.2012.09.124

M3 - 文章

AN - SCOPUS:84870530776

SN - 0169-4332

VL - 264

SP - 88

EP - 93

JO - Applied Surface Science

JF - Applied Surface Science

ER -

Effect of LaB ₆ on the thermal shock property of MoSi ₂ -SiC coating for carbon/carbon composites

Abstract

Keywords

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