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 language | English |
---|---|
Pages | 131-138 |
Number of pages | 8 |
Publication status | Published - 2015 |
Event | IMAPS/ACerS 11th International Conference and Exhibition on Ceramic Interconnect and Ceramic Microsystems Technologies, CICMT 2015 - Dresden, Germany Duration: 2015 Apr 20 → 2015 Apr 23 |
Other
Other | IMAPS/ACerS 11th International Conference and Exhibition on Ceramic Interconnect and Ceramic Microsystems Technologies, CICMT 2015 |
---|---|
Country/Territory | Germany |
City | Dresden |
Period | 15-04-20 → 15-04-23 |
All Science Journal Classification (ASJC) codes
- Hardware and Architecture
- Ceramics and Composites