Hollow Glass Microspheres Coated with La0.6Sr0.4MnO3 and its Microwave Absorption Property

La0.6Sr0.4MnO3 and hollow glass microspheres with different weight ratio have been prepared by sol-gel method. The structure, morphology and microwave absorption properties have been investigated. The results shown that the ratio of La0.6Sr0.4MnO3 to hollow glass microspheres has great influence on reflection loss. The optimal absorption property can be obtained when the ratio is 6:1, which is attributed to the proper magnetic loss of La0.6Sr0.4MnO3 coating layers.