表面技术2012，Vol.41Issue(1)：109-112,4.
热处理对锶铁氧体微结构及吸波性能的影响
Influence of Heat-treatment on the Microstructure and Microwave Absorbing Properties of SrFe12O19
张泽洋 1刘祥萱 1吴有朋 1王煊军1
作者信息
- 1. 第二炮兵工程大学503室,西安710025
- 折叠
摘要
Abstract
M-type strontium ferrite powders were prepared by sol-gel-autocombustion and the micro-structures· Morphology and the electromagnetic properties of powders were characterized. Impedance matching solution maps was designed to obtain the matching frequency and the matching thickness. Based on the match-ing frequency and the matching thickness, microwave absorption of the material was studied. The results show that with increasing of temperature the shape of particles change from rice-like to hexagon. It is found that an-nealing temperatures could affect the microwave absorbing properties of SrFe12O19. When annealing tempera-ture is 1 000 °C with a 5. 2 mm thickness, the maximum reflection loss becomes -38 Db at 6 GHz, and the -5 Db bandwidth reaches 4. 5 GHz.关键词
锶铁氧体/热处理/匹配厚度/吸波性能Key words
strontium ferrite/ heat-treatment/ matching thickness/ microwave absorbing property分类
化学化工引用本文复制引用
张泽洋,刘祥萱,吴有朋,王煊军..热处理对锶铁氧体微结构及吸波性能的影响[J].表面技术,2012,41(1):109-112,4.
