Application of Electron Beam Modification Technique on Silicide Coatings

Abstract

Abstract: The silicide coating was prepared by fused slurry method with Nb521 alloy and re-melted by using high frequency electron beam. The morphology of specimen was analyzed by SEM and surface profiles equipment. It shows that, after electron beam re-melt process, the surface ceramic grain granularity and surface roughness decrease, the sintering effects between ceramic grains increase, and the obvious boundary appears between primary region and re-melted region. It proves that the energy distributing is well-proportioned, the high temperature oxidation resistance and shock testing validate capability are improved after electron beam remelting process.

Key words: Electron beam re-melting, Surface roughness, Oxidation resistance capability, Morphology, Silicide coating, Satellite

YU Bin, JIN Qing-Chen, LIU Zhi-Dong, HE Jun. Application of Electron Beam Modification Technique on Silicide Coatings[J]. Chinese Space Science and Technology, 2010, 30(5): 54-55.

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https://journal26.magtechjournal.com/kjkxjs/EN/Y2010/V30/I5/54

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Application of Electron Beam Modification Technique on Silicide Coatings

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