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A platform for research: civil engineering, architecture and urbanism
Silicon carbide coating graphite base and preparation method thereof
The invention relates to a silicon carbide coating graphite base which comprises a disc-shaped graphite base body, a silicon carbide film is deposited on the surface of the graphite base body, and a graphene film or a refractory metal carbide layer is deposited outside the silicon carbide film. Or a refractory metal carbide layer is deposited on the surface of the graphite base; the silicon carbide coating is deposited on the surface of the refractory metal carbide layer or the surface of the graphene film; a graphene film or a refractory metal carbide layer is deposited on the surface of a graphite base, so that the specific surface area of the surface of a matrix is greatly increased, more nucleation sites are formed on the surface of the matrix, and when a silicon carbide coating is deposited, the aggregation degree of silicon carbide crystal grains is reduced, so that the crystal grains of the silicon carbide coating are distributed more uniformly and compactly; the thermal shock resistance and the corrosion resistance of the silicon carbide coating graphite base are improved; the invention further relates to a preparation method of the silicon carbide coating graphite base.
本发明涉及一种碳化硅涂层石墨基座，包括呈圆盘片状的石墨基座，石墨基座表面沉积碳化硅薄膜，在碳化硅薄膜外沉积石墨烯薄膜或难熔金属碳化物层；或者石墨基座表面沉积难熔金属碳化物层；还包括沉积在难熔金属碳化物层表面或者沉积在石墨烯薄膜表面碳化硅涂层；通过在石墨基座表面沉积石墨烯薄膜或者难熔金属碳化物层，从而大大提高基体表面的比表面积，从而在基体表面形成了更多的形核位点，在沉积碳化硅涂层时，减轻了碳化硅晶粒聚集程度，使碳化硅涂层的晶粒分布更加均匀致密，提高了碳化硅涂层石墨基座的抗热震性能及耐腐蚀性能；本发明还涉及一种碳化硅涂层石墨基座制备方法。
Silicon carbide coating graphite base and preparation method thereof
The invention relates to a silicon carbide coating graphite base which comprises a disc-shaped graphite base body, a silicon carbide film is deposited on the surface of the graphite base body, and a graphene film or a refractory metal carbide layer is deposited outside the silicon carbide film. Or a refractory metal carbide layer is deposited on the surface of the graphite base; the silicon carbide coating is deposited on the surface of the refractory metal carbide layer or the surface of the graphene film; a graphene film or a refractory metal carbide layer is deposited on the surface of a graphite base, so that the specific surface area of the surface of a matrix is greatly increased, more nucleation sites are formed on the surface of the matrix, and when a silicon carbide coating is deposited, the aggregation degree of silicon carbide crystal grains is reduced, so that the crystal grains of the silicon carbide coating are distributed more uniformly and compactly; the thermal shock resistance and the corrosion resistance of the silicon carbide coating graphite base are improved; the invention further relates to a preparation method of the silicon carbide coating graphite base.
本发明涉及一种碳化硅涂层石墨基座，包括呈圆盘片状的石墨基座，石墨基座表面沉积碳化硅薄膜，在碳化硅薄膜外沉积石墨烯薄膜或难熔金属碳化物层；或者石墨基座表面沉积难熔金属碳化物层；还包括沉积在难熔金属碳化物层表面或者沉积在石墨烯薄膜表面碳化硅涂层；通过在石墨基座表面沉积石墨烯薄膜或者难熔金属碳化物层，从而大大提高基体表面的比表面积，从而在基体表面形成了更多的形核位点，在沉积碳化硅涂层时，减轻了碳化硅晶粒聚集程度，使碳化硅涂层的晶粒分布更加均匀致密，提高了碳化硅涂层石墨基座的抗热震性能及耐腐蚀性能；本发明还涉及一种碳化硅涂层石墨基座制备方法。
Silicon carbide coating graphite base and preparation method thereof
一种碳化硅涂层石墨基座及其制备方法
ZHANG DONGSHENG (author) / YAO DONGJIA (author) / LI JIANGTAO (author) / WANG ZHENG (author) / WEI QINGBO (author) / WU HENG (author)
2022-04-19
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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