Oxidation behavior of melt-infiltrated SiC–TiB2 ceramic composites at 500–1300 °C in air

The oxidation behavior of melt-infiltrated SiC–TiB2 ceramic composites at 500–1300 °C in air for 32 h was investigated by the isothermal oxidation test. The phase composition and microstructure evolution were studied through examining the surficial and cross-sectional oxide layer by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and scanning electron microscopy (SEM). The oxidized surfaces were covered by scattered TiO2...