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Development of Superior Thermal Protective Coating on Carbon Composites

Soo Bin Bae Ji Eun Lee Jong Gyu Paik Nam Choon Cho Hyung Ik Lee

Archives of Metallurgy and Materials | 2020 | vol. 65 | No 4 | 1371-1375 | DOI: 10.24425/amm.2020.133702

Słowa kluczowe Composite silicon carbide CVR CVD

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Abstrakt

A superior SiC based thermal protection coating process for carbon composite, which can be especially effective in a hot oxidizing atmosphere, was established in this study. A multi-coating process based on a combination of Chemical Vapor Reaction (CVR) and Chemical Vapor Deposition (CVD) was developed. Various protective coating layers on carbon composite were tested in hot oxidizing surroundings and the test results verified that the thermal ablation rate could be dramatically reduced down to 3.8% when the protective multi-coating was applied. The thermal protection mechanism of the coating layers was also investigated.

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Autorzy i Afiliacje

Soo Bin Bae

e-mail:

ORCID:

Ji Eun Lee

e-mail:

ORCID:

Jong Gyu Paik

Nam Choon Cho

e-mail:

ORCID:

Hyung Ik Lee

e-mail:

ORCID:

Evaluating the Durability of SiC-Coated Carbon Composites Under Thermal Shock Conditions

Ji Eun Lee Soo Bin Bae Nam Choon Cho Hyung Ik Lee Zicheng Meng Kee Sung Lee

Archives of Metallurgy and Materials | 2021 | vol. 66 | No 3 | 777-782 | DOI: 10.24425/amm.2021.136379

Słowa kluczowe durability carbon composites silicon carbide coating chemical vapor deposition chemical vapor reaction

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Abstrakt

Oxidation and indentation properties of silicon carbide-coated carbon composites were investigated to analyze its durability under atmospheric thermal shock conditions. The silicon carbide-coated samples were prepared either with chemical vapor deposition or chemical vapor reaction/chemical vapor deposition hybrid coating. The remnant weight of uncoated and coated samples was investigated after each thermal shock cycle. The surface and cross-section of coated samples were then analyzed to confirm morphological changes of the coating layers. The spherical indentation test for uncoated and coated samples were also performed. As a result, silicon carbide coating improved the oxidation resistance, elastic modulus, and hardness of carbon composites. Hybrid coating drastically enhanced the durability of samples at high temperature in atmospheric conditions.

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Bibliografia

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[13] http://www.tanxw.com/news/xgzx/1654.html, accessed: 26.08.2020.
[14] http://www.360doc.com/content/19/1014/10/9122134_866684074.shtml, accessed: 26.08.2020.
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Autorzy i Afiliacje

Ji Eun Lee

e-mail:

ORCID:

Soo Bin Bae

e-mail:

ORCID:

Nam Choon Cho

e-mail:

ORCID:

Hyung Ik Lee

e-mail:

ORCID:

Zicheng Meng

e-mail:

ORCID:

Kee Sung Lee

e-mail:

ORCID:

Agency for Defense Development, Yuseong P.O. Box 35, Daejeon, 34186, Korea
Kookmin University, School of Mechanical Engineering, JEONGNEUNG-RO 77, SEONGBUK-GU, SEOUL, 02707, KOREA