Zirconium carbide (ZrC) whiskers were successfully synthesized by a combination of microwave hydrothermal (MH) and carbothermal reduction. The precursors of ZrC whiskers were produced by MH, subsequently carbothermally reduced to ZrC whiskers at 1100–1600 °C in an Ar atmosphere. Effects of the reduction temperature and precursors with various carbon/zirconium (C/Zr) molar ratios on the synthesis of ZrC whiskers were investigated. The results showed that the carbothermal reduction occurred at 1100 °C, and terminated at a relatively low temperature (1400 °C). When the reduction temperature was 1500 °C and the C/Zr molar ratio was 5:1, the ZrC whiskers with the largest aspect ratio and the most uniform distribution were produced. The whiskers exhibited the diameters of 0.1–2 µm and the lengths of 5–30 µm. The synthesized ZrC whiskers with a single crystalline phase displayed cylindrical and pagoda-like morphologies. The growth of ZrC whiskers was considered to be governed by the Ostwald ripening and S-L-S mechanism.

微波水热法和碳热还原法成功地合成了碳化锆晶须。ZrC晶须的前体是由MH生产的，随后 在Ar气氛中于1100–1600 °C碳热还原为ZrC晶须。研究了还原温度和具有不同碳/锆（C / Zr）摩尔比的前驱物对ZrC晶须合成的影响。结果表明，碳热还原发生在1100  °C，并在相对较低的温度（1400  °C）处终止。当还原温度为1500  ℃且C / Zr摩尔比为5∶1时，产生具有最大长径比和最均匀分布的ZrC晶须。晶须的直径为0.1–2 µm，长度为5–30  µm。合成的具有单晶相的ZrC晶须显示出圆柱状和宝塔状形态。ZrC晶须的生长被认为是由奥斯特瓦尔德（Ostwald）成熟和SLS机制控制的。