对Ni-Zn铁氧体复合吸波涂料制备工艺进行了研究，采用沉降法对偶联剂和分散剂进行筛选；利用波导法对复合吸波剂电磁参数进行了测量；扫描电镜（ SEM)对吸波剂的形貌进行了分析。结果表明：经过偶联预处理后的Ni-Zn铁氧体粉分散效果良好，有利于吸波涂料的均匀性和稳定性。添加La2 O3后与单一的Ni-Zn铁氧体相比，磁导率和电导率得到了的改善，进一步提高了其吸波性能。%The Ni-Zn ferrite composite absorbing wave coating preparation process was studied. Screen disper-sant and coupling agent was used sedimentation method. The composite wave-absorbing electromagnetic parameters were tested according to waveguide method. Surface topography of absent were analysed through scanning electron microscopy ( SEM). The experimental results are as follows. Ni-Zn Ferrite powder good dispersion effect after cou-pling treatment is beneficial to Wave-absorbing paint uniformity and stability. Compared with the single Ni-Zn fer-rite, magnetic permeability and electrical conductivity have improvement after adding La2 O3,so as to further im-prove its absorbing properties.
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