采用真空烧结工艺制备了Ti(C,N)基金属陶瓷,研究了烧结温度和保温时间对Ti(C,N)基金属陶瓷显微组织和力学性能的影响,并用SEM观察其断口形貌.结果表明:随着烧结温度的升高,金属陶瓷的组织逐渐变得均匀,硬质颗粒逐渐球化,且其环形相逐渐变得完整;温度过高,保温时间过长,晶粒都会明显长大,环形相变厚,导致材料性能下降.经1440℃烧结,保温60min,可获得较佳的性能,其抗弯强度达1914.2MPa,硬度HRA达90.1.
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