摘要
使用不同的化学共沉淀法制备零维纳米γ-Fe_2O_3和α-Fe_2O_3粉体,通过比表面测试、透射电镜(TEM)和X-射线衍射(XRD)分析其结构,并在10GHz的频率下测试了它们的微波吸收性能。结果表明:实验制备得到了零维纳米γ-Fe_2O_3和α-Fe_2O_3粉体,在10GHz的频率下γ-Fe_2O_3的微波吸收性能比α-Fe_2O_3要好。
Zero dimension nanometric α-Fe_2O_3 and γ-Fe_2O_3 were prepared by chemical coprecipitation with different processes. Their structures were analyzed by using specific surface testing, transmission electron microscope (TEM) and X-ray diffraction (XRD). Finally, their abilities of microwave absorption were tested at 10GHz frequency. The results show that zero dimension nanometric γ-Fe_2O_3 particles have much better microwave absorption ability than α-Fe_2O_3.
出处
《功能材料与器件学报》
CAS
CSCD
2004年第2期251-254,共4页
Journal of Functional Materials and Devices
基金
西安电子科技大学青年科研工作站资助项目
关键词
铁磁材料
零维纳米Fe2O3
化学共沉淀
吸波性能
magnetic materials
zero dimension nano -ferric oxide
chemical co-precipitation
ability of microwave absorption
