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High Temperature in-situ Antioxidation Coating Fabricated by AAC Method

机译:AAC法制备高温原位抗氧化涂层

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摘要

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 B_4C powder. The coating consists of SiC and B_(13)C_2 ceramic particles. The results show that: the reaction generates B_2O_3 and SiO_2 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%.
机译:在石墨电极表面,根据氩弧熔覆层以及Si和B_4C粉末的原料,制备原位合成的高温抗氧化复合涂层。该涂层由SiC和B_(13)C_2陶瓷颗粒组成。结果表明:反应生成高温的B_2O_3和SiO_2对裂纹的修复和防止氧的扩散起到了作用。包覆层与石墨基体之间存在一种连续的界面,无明显缺陷。在1573 K下燃烧10 h,氧化失重率为0.912%。

著录项

  • 来源
  • 会议地点 Guilin(CN)
  • 作者单位

    College of Materials Science Engineering, Heilongjiang Institute of Science Technology, Harbin 150027, P. R.China;

    College of Materials Science Engineering, Heilongjiang Institute of Science Technology, Harbin 150027, P. R.China;

    College of Materials Science Engineering, Heilongjiang Institute of Science Technology, Harbin 150027, P. R.China;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    AAC(argon arc cladding); Antioxidation; Ceramic Particle;

    机译:AAC(氩弧熔覆);抗氧化;陶瓷颗粒;

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