摘要
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.
作者
马志军
郑云生
赵海涛
莽昌烨
MA Zhijun;ZHENG Yunsheng;ZHAO Haitao;MANG Changye(College of Mining, Liaoning Technical University, Fuxin 123000, China)
出处
《人工晶体学报》
EI
CAS
北大核心
2020年第5期876-880,887,共6页
Journal of Synthetic Crystals
基金
国家自然科学基金(51372108)。
关键词
钴锌铁氧体
水热法
晶化温度
晶化时间
吸波性能
cobalt-zinc ferrite
hydrothermal method
crystallization temperature
crystallization time
absorption performance
