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Effects of Bi_2O_3-doping on the electromagnetic properties of NiCuZn/PZT composite materials

Kuang Jia

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Abstract

Firstly, Pb0.95Sr0.05(Zr0.52Ti0.48)O3 (abbreviated as PZT ) nanopowder was prepared by a sol-gel method. Then NiCuZn/PZT ferrite/ceramic composites were prepared by a solid state reaction method. The effects of Bi2O3-doping as low temperature sintering aid on the microstructures and electromagnetic properties of composites were investigated. As the w(Bi2O3) is 2.5%, composites with mass ratio of NiCuZn to PZT of both 7:3 and 6:4 can realize low temperature sintering at 900 ℃, with the sintered bulk density of greater than 5 g/cm3. μ′ reaches 27 and e′ is more than 34 for the former, while μ′ reaches 16 and e′ is more than 50 for the latter. They are expected to be fabricated as inductor and capacitor double functions materials with different performance indexes.

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What this paper is about

Firstly, Pb0.95Sr0.05(Zr0.52Ti0.48)O3 (abbreviated as PZT ) nanopowder was prepared by a sol-gel method. Then NiCuZn/PZT ferrite/ceramic composites were prepared by a solid state reaction method. The effects of Bi2O3-doping as low temperature sintering aid on the microstructures and electromagnetic properties of composites were investigated. As the w(Bi2O3) is 2.5%, composites with mass ratio of NiCuZn to PZT of both 7:3 and 6:4 can realize low temperature sintering at 900 ℃, with the sintered bulk density of greater than 5 g/cm3. μ′ reaches 27 and e′ is more than 34 for the former, while μ′ reaches 16 and e′ is more than 50 for the latter. They are expected to be fabricated as inductor and capacitor double functions materials with different performance indexes.

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Available abstract

Firstly, Pb0.95Sr0.05(Zr0.52Ti0.48)O3 (abbreviated as PZT ) nanopowder was prepared by a sol-gel method. Then NiCuZn/PZT ferrite/ceramic composites were prepared by a solid state reaction method. The effects of Bi2O3-doping as low temperature sintering aid on the microstructures and electromagnetic properties of composites were investigated. As the w(Bi2O3) is 2.5%, composites with mass ratio of NiCuZn to PZT of both 7:3 and 6:4 can realize low temperature sintering at 900 ℃, with the sintered bulk density of greater than 5 g/cm3. μ′ reaches 27 and e′ is more than 34 for the former, while μ′ reaches 16 and e′ is more than 50 for the latter. They are expected to be fabricated as inductor and capacitor double functions materials with different performance indexes.

Key concepts: Materials science, Sintering, Ferrite (magnet), Composite material, Composite number, Microstructure, Ceramic, Doping

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Effects of Bi_2O_3-doping on the electromagnetic properties of NiCuZn/PZT composite materials — Research Paper | ScholarLens