Effects of BaTiO3 and FeAlSi as fillers on the magnetic, dielectric and microwave absorption characteristics of the epoxy-based composites
作者： Wenhu Yang , Shuhui Yu , Rong Sun , Ruxu Du
DOI: 10.1016/J.CERAMINT.2011.12.071
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摘要: Abstract A systematic study was carried out on the magnetic, dielectric and microwave absorption properties of two-phase FeAlSi/epoxy three-phase FeAlSi/BaTiO 3 /epoxy composites through experimental simulation method. percolation effect observed in dielectric, but not magnetic behavior when FeAlSi content high. The 2D modeling shows that high electric energy density is responsible for permittivity near threshold (49 vol%). On other hand, permeability matches well with effective medium theory model (EMT), indicating composite more associated filler size shape. Theoretical calculations show increment BaTiO loading, as thickness will cause peak position to shift low frequencies. these can be mainly attributed loss loss.
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F. Rasoanoavy, V. Laur, S. De Blasi, J. Lezaca, P. Quéffélec, K. Garello, B. Viala, Magnetodielectric effect in trilayered Co65Fe35B20/PVDF/Co65Fe35B20 composite materials. Prediction and measurement for tunable microwave applications Journal of Applied Physics. ,vol. 107, pp. 1- 3 ,(2010) , 10.1063/1.3359437
Leandro Ramajo, MarÃa M. Reboredo, Miriam S. Castro, BaTiO3–Epoxy Composites for Electronic Applications International Journal of Applied Ceramic Technology. ,vol. 7, pp. 444- 451 ,(2009) , 10.1111/J.1744-7402.2009.02473.X
H PANT, M PATRA, A VERMA, S VADERA, N KUMAR, Study of the dielectric properties of barium titanate–polymer composites Acta Materialia. ,vol. 54, pp. 3163- 3169 ,(2006) , 10.1016/J.ACTAMAT.2006.02.031
Y. Shen, Z. Yue, M. Li, C.-W. Nan, Enhanced Initial Permeability and Dielectric Constant in a Double‐ Percolating Ni0.3Zn0.7Fe1.95O4–Ni– Polymer Composite Advanced Functional Materials. ,vol. 15, pp. 1100- 1103 ,(2005) , 10.1002/ADFM.200500045
Kyung-Sub Lee, Yeo-Chun Yun, Sang-Woo Kim, Sung-Soo Kim, Microwave absorption of λ∕4 wave absorbers using high permeability magnetic composites in quasimicrowave frequency band Journal of Applied Physics. ,vol. 103, pp. 216- 216 ,(2008) , 10.1063/1.2830827
Haibo Yang, Hong Wang, Feng Xiang, Xi Yao, Multifunctional SrTiO3/NiZn ferrite/POE composites with eletromagnetic and flexible properties for RF applications Journal of Electroceramics. ,vol. 22, pp. 221- 226 ,(2009) , 10.1007/S10832-007-9368-Z
Mao-Sheng Cao, Wei-Li Song, Zhi-Ling Hou, Bo Wen, Jie Yuan, The effects of temperature and frequency on the dielectric properties, electromagnetic interference shielding and microwave-absorption of short carbon fiber/silica composites Carbon. ,vol. 48, pp. 788- 796 ,(2010) , 10.1016/J.CARBON.2009.10.028
Z. Guo, S.-E. Lee, H. Kim, S. Park, H.T. Hahn, A.B. Karki, D.P. Young, Fabrication, characterization and microwave properties of polyurethane nanocomposites reinforced with iron oxide and barium titanate nanoparticles Acta Materialia. ,vol. 57, pp. 267- 277 ,(2009) , 10.1016/J.ACTAMAT.2008.09.024
R. Moučka, J. Vilčáková, N. E. Kazantseva, A. V. Lopatin, P. Sáha, The influence of interfaces on the dielectric properties of MnZn-based hybrid polymer composites Journal of Applied Physics. ,vol. 104, pp. 103718- ,(2008) , 10.1063/1.3028272
Y. Pittini-Yamada, E.A. Périgo, Y. de Hazan, S. Nakahara, Permeability of hybrid soft magnetic composites Acta Materialia. ,vol. 59, pp. 4291- 4302 ,(2011) , 10.1016/J.ACTAMAT.2011.03.053