Considering the importance and application of ultrahigh temperature ceramics in oxidizing environments, this research, effect ZrC content spark plasma sintering parameters (temperature, time pressure) on oxidation response ZrB2–SiC composites has been investigated. After fabricating ternary composite samples different SPS conditions with amounts ZrC, post-sintering process was carried out a box...

Refractory diboride with silicon carbide additive has a unique oxide scale microstructure with two condensed oxide phases (solid+liquid), and demonstrates oxidation resistance superior to either monolithic diboride or silicon carbide. We rationalize that this is because the silica-rich liquid phase can retreat outward to remove the high SiO gas volatility region, while still holding onto the zi...