4.5 Article

Hybrid processing and properties of Ni0.8Zn0.2Fe2O4/Ba0.6Sr0.4TiO3 magnetodielectric composites

Journal

JOURNAL OF MATERIALS RESEARCH
Volume 25, Issue 9, Pages 1803-1811

Publisher

CAMBRIDGE UNIV PRESS
DOI: 10.1557/JMR.2010.0224

Keywords

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Funding

  1. National Natural Science Foundation of China [60871044, 10979035, 50902090, 50835007]
  2. National 973-project of China [2009CB623302]
  3. International Science and Technology Collaboration Project of China [2009DFA51820]

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Ni0.8Zn0.2Fe2O4/Ba0.6Sr0.4TiO3 (NZO/BST) composites with high permittivity and low loss were synthesized via the hybrid processing route. The composites possess very dense and homogenous microstructure. The NZO/BST composites show good dielectric properties and magnetic properties with low loss in high frequency range. This indicates that this kind of magnetodielectric composites can be used in high-frequency communications for the capacitor-inductor integrating devices such as electromagnetic interference filters and antennas. The permittivities of the composites were also fitted using the combination of Maxwell-Wagner polarization and modified Curie Weiss law.

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