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Thermoplastic 0–3 Ceramic–Polymer Composites With Adjustable Magnetic and Dielectric Characteristics for Radio Frequency Applications
Author(s) -
Juuti Jari,
Teirikangas Merja,
Sonoda Kensaku,
Jantunen Heli
Publication year - 2010
Publication title -
international journal of applied ceramic technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.4
H-Index - 57
eISSN - 1744-7402
pISSN - 1546-542X
DOI - 10.1111/j.1744-7402.2010.02493.x
Subject(s) - materials science , composite material , ceramic , dielectric , ferrite (magnet) , thermoplastic , permittivity , optoelectronics
Magnetic and electrical properties of thermoplastic ceramic‐polymer 0–3 composites with Z ‐type hexaferrite, and MnZn ferrite inclusions were investigated. The complex permeability and permittivity were measured up to 1 GHz where maximum values of ɛ′ r =30.47 and μ′ r =4.32 and ɛ′ r =10.95 and μ′ r =1.80 were obtained for MnZn‐ER182 and Co 2 Z‐ER182 composites with ∼44.7 vol% and 43.0 vol% filler loadings, respectively. MnZn and Co 2 Z composites exhibit miniaturization factors as low as 0.09 and 0.23, together with reduced magnetic losses and frequency dispersion. The results indicate that the composites offer novel possibilities for wider feasible frequency bandwidth and adjustable impedance matching and magnetic and dielectric properties.