The polymer‐derived‐ceramic (PDC) route has been widely used to fabricate the transition‐metal carbides (TMCs). Previously reported works focused mainly on the synthesis of the single or binary TMCs, while the synthesis of the ternary or more component TMCs was rarely reported. Herein, a class of the ternary TMCs, namely (Nb_1/3Zr_1/3Ta_1/3)C solid‐solution ceramics, was successfully synthesized via PDC route for the first time. The as‐synthesized ceramics exhibited the particle‐like morphology with an average particle size of ~250 nm and showed a single rock‐salt crystal structure of metal carbides. At the same time, they had high compositional uniformity from nanoscale to microscale. In addition, they possessed low‐oxygen impurity content of 0.79 wt% and moderate‐carbon impurity content of 8.98 wt%. Such work provides a novel route to fabricate the ternary or more component TMCs.

中文翻译：

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聚合物衍生陶瓷路线合成三元碳化金属固溶陶瓷

聚合物衍生的陶瓷（PDC）路线已被广泛用于制造过渡金属碳化物（TMC）。先前报道的工作主要集中在单一或二元TMC的合成上，而三元或更多组成的TMC的合成则鲜有报道。这里，一类三元TMC，即（Nb _1/3 Zr _1/3 Ta _1/3C固溶陶瓷首次通过PDC路线成功合成。合成后的陶瓷表现出颗粒状的形态，平均粒径约为250 nm，并显示出金属碳化物的单一盐岩晶体结构。同时，它们具有从纳米级到微米级的高组成均匀性。此外，它们的低氧杂质含量为0.79 wt％，中碳杂质含量为8.98 wt％。此类工作为制造三元或更多成分的TMC提供了新颖的途径。