(Ni,Zn,Co)_2-W型复合钡铁氧体的制备及其微波吸收特性

Preparation of (Ni,Zn,Co)_2-W Composite Ba-Ferrite and Its Microwave-absorbing Properties

用化学共沉法制备了 (NiZnCo) 2 W型平面六角晶系复合钡铁氧体 ,对其吸收特性进行了分析研究 ,发现在 8～ 12GHz频率范围内有两个吸收峰 ,最大吸收量达 31dB ,10dB带宽 1 9GHz,匹配厚度 3 82mm。同时比较了在相同工艺条件下 。

Chemical comprecipitation method is used to prepare(Ni,Zn,Co) 2 W type hexagonal planar crystal composite Ba Ferrites,and their absorption properties are studied.It is found that two absorption peaks appear in the frequence range of 8—12GHz,the maximum absorption quantitiy can reach 31 dB,10dB bandwidth is 1 9GHz,and the matching thickness is 3 82 mm.Moreover,the influence of carbon fiber additives into the Ba ferrites on absortion properties is compared.