High Temperature In Situ Antioxidation Coating Fabricated by AAC Method

Abstract:

In the surface of graphite electrode, the in-situ synthesized high temperature antioxidation composite coating is prepared, depending on argon arc cladding and the raw materials of Si and B₄C powder. The coating consists of SiC and B₁₃C₂ ceramic particles. The results show that: the reaction generates B₂O₃ and SiO₂ with high temperature play a role in healing crack and preventing oxygen diffusion; a kind of continuous interface is present between the cladding layer and the graphite substrate, no obvious flaws; burning at 1573 K and 10 h, oxidation weightlessness rate is 0.912%.

• Periodical: Key Engineering Materials (Volume 537)
• Pages: 42-45
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.537.42
• Online since: January 2013
• Authors: Zhen Ting Wang, Gang Liang, Guo Gang Zhao
• Keywords: AAC (Argon Arc Cladding), Antioxidation, Ceramic Particle

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