采用溶胶-凝胶法制备出了钛酸钡陶瓷粒子,观察和分析了粒子的成分、形貌和微观结构及其对电磁波的吸收性能,并测定了粉体的复介电常数和磁导率.XRD和TEM分析表明制备的粒子为四方相,粒径在30～40nm左右.制备的钛酸钡/环氧树脂复合吸收材料在8～18GHz范围内对电磁波有良好的吸收效果,当含量为20%时效果最佳.最后针对其吸收特性探讨了钛酸钡粒子的吸收机理.
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