用传统粉末冶金法制备了添加碳化钛(TiC)的Ti(C,N)基金属陶瓷。为了得到超细晶粒的显微结构,主要硬质相[Ti(C,N),TiC和TiN]的初始粉末粒度为纳米、亚微米级。通过扫描电子显微镜观察,发现了一种新的白芯/灰壳结构,揭示了其形成机制。此外,通过能谱仪分析,获得了各相的化学成分。用X射线衍射仪并通过计算得出了各相的点阵参数。对室温下该材料的力学性能进行了测试,并尝试把它们与金属陶瓷的原始成分和显微结构的特点联系起来。 Ti (C, N) -based cermets with addition of TiC were prepared by conventional powder metallurgy. In order to obtain ultrafine grained microstructures, the primary hard particle phases [Ti (C, N), TiC and TiN] have an initial powder particle size of nanometers, submicron. By scanning electron microscopy, a new white core / gray shell structure was discovered, revealing its formation mechanism. In addition, the chemical composition of each phase was obtained by energy spectrum analysis. The lattice parameters of each phase were calculated by X-ray diffraction. The mechanical properties of the material were tested at room temperature and tried to relate them to the original composition of the cermet and to the microstructural features.