抄録
Oxidation behavior of ZrB2-SiC ceramics in air up to 2000°C was investigated. A thick oxidized layer forms and protects the inside of material even at 2000°C. The oxide consists of mainly ZrO2 with surface layer of SiO2 and B2O3. The bending strength of ZrB2-SiC ceramic decreased with increasing oxidizing temperature and duration.
The strength can be evaluated with the remaining un-oxidized portion of the material.
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