Abstract Ni-coated mixed powders were synthesized via chemical co-precipitation and hydrogen thermal reduction. Ti(C,N)-based cermets were further fabricated using as-prepared Ni-coated mixed powders successfully. Phase analysis, microstructure characterization, and properties of synthesized powders as well as the as-sintered cermets were investigated using a variety of techniques, including XRD, SEM, EDS. The results exhibited that XRD patterns of present experimental cermets only showed two diffraction peaks that correspond to Ti(C,N) hard phase and nickel binder phase. Also, microstructures of as-sintered cermets were more uniform and finer than those of traditional cermets with the same nominal composition. Meanwhile, present cermets prepared using chemical-coated method had excellent mechanical properties.

中文翻译：

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Ni包覆混合粉末制备Ti(C,N)基金属陶瓷的显微组织和力学性能

摘要 采用化学共沉淀法和氢热还原法合成了Ni包覆混合粉体。使用制备的 Ni 涂层混合粉末进一步制备了 Ti(C,N) 基金属陶瓷。使用各种技术（包括 XRD、SEM、EDS）研究了合成粉末以及烧结态金属陶瓷的相分析、微观结构表征和性能。结果表明，本实验金属陶瓷的 XRD 谱仅显示两个衍射峰，分别对应于 Ti(C,N) 硬质相和镍粘结相。此外，烧结态金属陶瓷的微观结构比具有相同标称成分的传统金属陶瓷更均匀、更精细。同时，采用化学包覆法制备的现有金属陶瓷具有优异的力学性能。