Oxidation Resistance of ZrB2 Based Ultra-High Temperature...
Peng, Fei![Oxidation Resistance of ZrB2 Based Ultra-High Temperature Ceramics](https://support.digitalhusky.com/media/annotations/sorted/106/10626010/CHSBZCOP0310626010.jpg)
Specimens of ZrB2 containing various concentrations of SiC, TaB2, and TaSi2 were pressureless-sintered and post-HIPed to theoretical densities. Oxidation resistances were studied by scanning thermogravimetry over the range 1150 - 1550 C, and isothermal thermogravimetry at 1200 - 1900 C. Most silicon-containing compositions formed a glassy surface layer, covering an interior oxide layer. This interior layer was less porous in tantalum-containin...