Mechanical and Electric Properties of NixCo1 – xFe2O4 Ferrites

Authors V.S. Bushkova , I.P. Yaremiy , R.V. Ilnitsky , B.S. Dzundza , O.M. Matkivsky

Vasyl Stefanyk Precarpathian National University, 57, Shevchenko Str., 76025 Ivano-Frankivsk, Ukraine

Е-mail [email protected]
Issue Volume 10, Year 2018, Number 2
Dates Received 13 November 2017; revised manuscript received 27 April 2018; published online 29 April 2018
Citation V.S. Bushkova, I.P. Yaremiy, R.V. Ilnitsky, et al., J. Nano- Electron. Phys. 10 No 2, 02007 (2018)
PACS Number(s) 75.50.Tt, 62.25. – g, 73.63.Bd
Keywords Ferrite (18) , Microstructure (21) , Micro-hardness, Hall effect (4) , Electrical сonductivity.

The Ni-Co ferrites were prepared by the technology sol-gel with participation of auto-combustion and sintered at temperature 1573 K in air. The effects of Ni2+ ions addition on the microstructure and electric properties of NixCo1 – xFe2O4 ferrites were systematically studied. The added of Ni2+ ions significantly affects the formation of pores and grain size of ferrites. By doping with nickel ions the pores decreased and a dense material are obtained. The micro-hardness values increases from 5,16 GPa to 8,59 GPa with increasing nickel contents. The Hall coefficient, conductivity type, concentration of charge carriers and specific conductivity were found. In Ni-Co ferrites Hall mobility is within the limits from 7.04·10 – 1 cm2/V·s to 4.38 cm2/V·s.

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