The oxidation behavior and kinetics of Ti₂AlC–20vol.%TiB₂ composite at 600–900 °C in air were investigated. The results showed that the oxidation kinetics of the composite followed a logarithmic law within the given temperature range, which indicated that the composites had excellent oxidation resistance. The selective oxidation of Al in Ti₂AlC was greatly enhanced, which facilitated the formation of a continuous and dense protective layer of Al₂O₃. Meanwhile, the existence of molten B₂O₃ inhibited the outward diffusion of Ti and inward diffusion of oxygen, which prevented the growth of anatase TiO₂ at 600 °C and rutile TiO₂ at 700–900 °C. Therefore, the incorporation of TiB₂ completely inhibited the abnormally rapid oxidation of bulk Ti₂AlC at 600 °C and improved its oxidation resistance at 700–900 °C.

研究了Ti ₂ AlC–20vol.%TiB ₂复合材料在600–900 °C空气中的氧化行为和动力学。结果表明，在给定温度范围内，复合材料的氧化动力学遵循对数规律，表明复合材料具有优异的抗氧化性能。_{Ti 2} AlC中Al的选择性氧化大大增强，有利于形成连续致密的Al ₂ O ₃保护层。_{同时，熔融B 2} O ₃的存在抑制了Ti的向外扩散和氧的向内扩散，从而阻碍了600℃锐钛矿型TiO ₂和700~900℃金红石型TiO _{2的生长。因此，TiB 2}的掺入完全抑制了块体Ti ₂ AlC在600℃下异常快速的氧化，并提高了其在700-900℃下的抗氧化性能。