High-Frequency Absorption Properties of Three Kinds of Hollow Multiphase Ceramic Microspheres
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JTTEE5 23:492–501 DOI: 10.1007/s11666-013-9995-7 1059-9630/$19.00 ASM International
High-Frequency Absorption Properties of Three Kinds of Hollow Multiphase Ceramic Microspheres Hongfei Lou, Jianjiang Wang, Yongshen Hou, Ming He, and Zhining Zhao (Submitted June 5, 2013; in revised form August 21, 2013) Al-TiO2-Fe2O3-MnO2-Fe-Sucrose-Epoxy Resin as reaction system and self-reactive quenching technology which combines flame thermal spraying, self-propagating high-temperature synthesis and rapid solidification, were used to prepare three kinds of hollow multiphase ceramic microspheres (HMCMs) in different feeding gas (N2, O2) and dimension (coarse, fine). The characteristic results of three kinds of HMCMs indicated that various process parameters containing feeding gas and initial agglomerate size in this study can result in the change of surface organization, composition, morphology, and dimension. Investigation of microwave electromagnetic (EM) characteristics of three kinds of HMCMs showed that intrinsic characteristics play an important role in the determining the resulting properties. At 10-14.5 GHz, No. 3 HMCMs possess weak absorption intensity and narrow effective bandwidth (
