采用水热法合成纳米Co0.5Zn0.5Fe2O4粉体，并借助X射线衍射仪(XRD)、透射电子显微镜(TEM)、矢量网络分析仪(VNA)研究工艺条件(晶化温度、晶化时间)对Co0.5Zn0.5Fe2O4物相、形貌及吸波性能的影响。结果表明，当晶化时间为8 h、晶化温度为180 ℃时制备出纯相的尖晶石结构的纳米Co0.5Zn0.5Fe2O4，样品形貌为类球形，平均粒径为10~15 nm。在1~18 GHz频段内，样品在16.47 GHz处的反射率达到-33.9 dB，吸波性能最好。

The nano Co0.5Zn0.5Fe2O4 powder was synthesized by hydrothermal method. The effects of the process conditions(crystallization time, crystallization temperature) on the phase, morphology and absorbing properties of Co0.5Zn0.5Fe2O4 were studied by X-ray diffraction(XRD), Transmission electron microscope (TEM) and Vector network analyzer(VNA). The results suggest that pure-phase nano Co0.5Zn0.5Fe2O4 with spinel structure is prepared when the crystallization time is 8 h and the crystallization temperature is 180 ℃. The morphology of the sample is spherical with an average particle size of 10-15 nm. In the 1-18 GHz, the reflectivity of the sample at 16.47 GHz reaches -33.9 dB, and the absorption performance is the best.