Abstract:In this paper, the oxidation behaviors of ZrB2 and its composites were reviewed. The results shown
that the ZrB2 ceramic is one of the promising high-temperature structure materials. The failure of ZrB2 ceramic was
due to the volatile and failure of B2O3 protective layer. For the ZrB2 -SiC composite ceramic, its antioxidant property
was improved at high temperatures by the addition of SiC. Also, the oxide structures of ZrB2 -SiC ceramic at different
temperatures were described in detail. Based on these discussions, a new way for further improving oxidation resistance
and service temperature of ZrB2 -SiC ceramic was described and illustrated by addition of TaC and LaB6 to form
ternary composite ceramics.
