人工晶体学报2012，Vol.41Issue(5)：1430-1435,6.
空心复相陶瓷微珠的自反应淬熄法制备及其吸波性能
Preparation by Self-reactive Quenching Technology and Microwave Absorption Property of Hollow Multiphase Ceramic Micro-spheres
摘要
Abstract
Take Al-TiO2-Fe-Fe2O3-MnO2-sucrose as reactive system, in O2 atmosphere, a new type microwave absorbing material of hollow multiphase ceramic micro-spheres was prepared by self-reactive quenching technology. The morphology, hollow structure and phase compositions were characterized by SEM, XRD and EDS. The results show that the system possesses high sphere formation rate, the quenching products are hollow structure and particle size is uniform between 30 |jun and 60 μm. The phase compositions are nano-multiphase structure including Fe3O4, Mn2AlO4, Mn3O4, (Fe2.5Ti0.5)O4 and Al2O3. The lowest reflectivity of hollow multiphase ceramic micro-spheres is -17.6 dB. The frequency bands of less than - 10 dB are - 11— 13.9 Hz. The essential reasons of hollow multiphase ceramic micro-spheres with better mi-crowave absorbing potential are nano-multiphase structure with magnetism and electricity and special hol-low structure.关键词
空心复相陶瓷/自反应淬熄法/吸波性能/尖晶石Key words
hollow multiphase ceramic/ self-reactive quenching/ microwave absorption property/ spinel分类
通用工业技术引用本文复制引用
娄鸿飞,王建江,许宝才,赵志宁,蔡旭东..空心复相陶瓷微珠的自反应淬熄法制备及其吸波性能[J].人工晶体学报,2012,41(5):1430-1435,6.基金项目
国家自然科学基金(51172282) （51172282）
