铁氧体吸波材料的制备方法研究进展

Research Progress in Preparation of Ferrite Wave-Absorbing Materials

为了对铁氧体吸波材料的研究进行总结和概述,结合近几年的文献,详细地分析了铁氧体吸波材料的常用制备方法,如:溶胶凝胶法、化学共沉淀法、高温固相法、流变相法、水热合成法、自蔓延燃烧法、反向微乳液法等方法的优缺点.发现在众多的制备方法中,溶胶凝胶法具有操作工艺简单、重现性好、低成本等优点,被广泛用于铁氧体粉体的制备,所制备的产品具有分散性好、纯度高、吸波性强的特点.并提出研究朝着系统化、复合化、纳米化、多层化等方向发展是实现铁氧体吸波材料"薄、轻、宽、强"的有效途径.

To summarize and review the research of ferrite wave-absorbing materials,the common preparation methods of ferrite,such as sol- gel method,co- precipitation method,solid state method,rheological phase method,hydrothermal synthesis method,self-propagating combustion method and microemulsion method were investigated in detail,referring to the recent literatures. It was found that the ferrite powder prepared by sol-gel method possesses properties of high purity,good dispersion and strong wave absorption,and the sol-gel method as a novel preparation method,has been widely applied for its simple operation process,good repeatability and low cost. The systematic,composite,nanocrystallized and multilayered study is expected to obtain ferrite wave-absorbing materials with thin coating,light quality,broad wave band and high absorption frequency.