文档介绍：ARTICLE IN PRESS
Journal of ism and ic Materials 302 (2006) 429–435
ate/jmmm
ic properties and microwave absorbing characteristics
of doped barium hexaferrite
A. Ghasemia,b,Ã, A. Hossienpourb,c, A. Morisakod, A. Saatchia, M. Salehia
aMaterials Engineering Department, Isfahan University of Technology, Isfahan, Iran
bElectroceramics Research Center, Malek Ashtar University of Technology, Shahin Shahr, Iran
cMaterials Engineering Department, Shiraz University, Shiraz, Iran
dDepartment of Information Engineering, Shinshu University, Nagano, Japan
Received 16 August 2005; received in revised form 14 September 2005
Available online 28 October 2005
Abstract
M-type barium hexaferrite BaFe12Àx()x/2O19 (x varying from 0 to 3 in steps of 1) have been synthesized by the usual
ceramic sintering method. The ferrite powders possess hexagonal shape and are well separated from one another. The powder of these
ferrites were mixed with polyvinylchloride plasticizer to be converted in to a microwave posite. X-ray diffraction (XRD),
scanning electron microscope (SEM), ac susceptometer, vibrating sample ometer, and work analyzer were used to
analyze its structure, ic and microwave absorption properties. The results showed that, the oplumbite structures for
all the samples have been formed. The sample having higher ic susceptibility and coercivity exhibits a