Cobalt oxide addition effects on the microstructure and electronic properties of CuZn ferrites

Hsing I. Hsiang, Jui Huan Tu, Wen Chin Kuo, Chi Yao Tsai, Li Then Mei

Research output: Contribution to conferencePaperpeer-review

Abstract

The effects of cobalt oxide addition on the microstructure and electrical properties of CuZn ferrites were investigated. CuZn ferrites with compositions of (CuO)0.2(ZnO)0.8(Co3O4)x/3 (Fe2O3)0.986-2x; x = 0, 0.02, 0.04, 0.08, 0.1 were synthesized using a solid state reaction. It was observed that the addition of cobalt will change the amounts and distribution of Cu2+, Cu+, Fe2+, and Fe3+ in the grain and grain boundary. The segregation of copper ions at the grain boundary was observed as the substitution of cobalt was increased. Moreover, as the x value was increased above 0.04, second phases of CuO and ZnO were found. The different amounts and distribution of Cu2+, Cu+, Fe2+, and Fe3+ in the bulk and grain boundary for samples added with different amounts of cobalt changed the conductivity activation energies of the bulk and grain boundary, and hence affected the space polarization and dielectric properties.

Original languageEnglish
Pages131-138
Number of pages8
Publication statusPublished - 2015
EventIMAPS/ACerS 11th International Conference and Exhibition on Ceramic Interconnect and Ceramic Microsystems Technologies, CICMT 2015 - Dresden, Germany
Duration: 2015 Apr 202015 Apr 23

Other

OtherIMAPS/ACerS 11th International Conference and Exhibition on Ceramic Interconnect and Ceramic Microsystems Technologies, CICMT 2015
CountryGermany
CityDresden
Period15-04-2015-04-23

All Science Journal Classification (ASJC) codes

  • Hardware and Architecture
  • Ceramics and Composites

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