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Influences of ZrO 2 additive on the microstructure and high temperature oxidation behavior of h-BN/ZrO 2 composites have been investigated. In addition to the enhanced strength, the oxidation reaction between boron and oxygen can be effectively hindered even at 1200°C when adding 20wt% ZrO 2 into the h-BN matrix. Besides the doped ZrO 2 particles, ZrB 2 and...
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