在开放体系下,采用碳热还原氮化的方法制备出了（Ti、W、Mo、V）CN固溶体粉末。结合XRD、SEM等分析测试手段对该过程中的物相以及显微形貌的演变进行了研究。结果表明（Ti、W、Mo、V）CN合成过程中物相演变遵循以下顺序：TiO2（anatase）→TiO2（rutile）→Ti4O7→Ti3O5→Ti（N、O）→（Ti、Mo…）N→（Ti、W、Mo、V）CN,1700℃可合成相组成单一、游离碳和氧分别为0.11%、0.28%的（Ti、W、Mo、V）CN固溶体粉。
（Ti,W,Mo,V）CN composite powders were synthesized from oxides by carbothermal reduction-nitridation in an open system.The phase transition and microstructure evolution in the process were analyzed by XRD,SEM and so on.The results demonstrated that the synthesis of（Ti,W,Mo,V）CN with the following evolution sequence： TiO2（anatase） → TiO2（rutile） →Ti4O7 →Ti3O5→Ti（N,O） →（Ti,Mo…）N →（Ti,W,Mo,V）CN.We can get the composite powders with 0.11% C and 0.28%O in weight fraction.
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