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

材料学院

Northwestern Polytechnical University Xian

科研成果: 期刊稿件 › 文章 › 同行评审

34 引用（Scopus）

摘要

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.

源语言	英语
页（从-至）	88-93
页数	6
期刊	Applied Surface Science
卷	264
DOI	https://doi.org/10.1016/j.apsusc.2012.09.124
出版状态	已出版 - 1 1月 2013

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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.
在: Applied Surface Science, 卷 264, 01.01.2013, 页码 88-93.

科研成果: 期刊稿件 › 文章 › 同行评审

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

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