LIU Xiaoyan, WEI Chuncheng, WU Binghui
(Materials Science and Engineering Institute, Shandong University of Technology, Zibo 255049, Shandong, China)

Abstract: ZrB₂ based ultra high temperature ceramics are widely used, because they have many excellent properties, such as high hardness,high melting point, good thermal conductivity and good thermal shock resistance. ZrB₂-based ultra high temperature ceramics can be used for hot-section components in aircraft, hypersonic missiles or rockets. There are some higher requirements for their antioxidant activity. This paper has reviewed the oxidation mechanism of ZrB₂-based ultra high temperature ceramics, the test method and the research progress of the oxidation resistance and so on.

Key words: ZrB₂-based ultra high temperature ceramics; antioxidant; toughness