The Influence of NiZnFe2O4 Content on Magnetic Properties of Supermalloy Type Material

0481450 - ÚFM 2018 RIV PL eng J - Článek v odborném periodiku
Dákova, L. - Füzer, J. - Dobák, S. - Kollár, J. - Fáberová, M. - Strečková, M. - Bureš, R. - Hadraba, Hynek
The Influence of NiZnFe2O4 Content on Magnetic Properties of Supermalloy Type Material.
Acta Physica Polonica A. Roč. 131, č. 4 (2017), s. 813-815. ISSN 0587-4246. E-ISSN 1898-794X
Institucionální podpora: RVO:68081723
Klíčová slova: SOL-GEL METHOD * COMPOSITES * PARTICLES
Obor OECD: Materials engineering
Impakt faktor: 0.857, rok: 2017

Soft magnetic composites represent a remarkable kind of materials with wide variety of use, Magnetic properties are dependent on the materials composition and also on the method of preparation. Ni-Fe-Mo alloys (supermalloy) have high complex permeability and low eddy current losses. Soft magnetic NiZnFe2O4 ferrites have low coercivity and intermediate saturation magnetization. The Ni80Fe14.7Mo4.5Mn0.5Si0.3 (wt%) powder sample was prepared by mechanical alloying of the chemical elements for 24 h. Ni0.3Zn0.7Fe2O4 ferrite is commercially available by Sigma Aldrich. Both powders were mixed at selected ratio and uniaxially compacted at 800 MPa. In this paper. we report the experimental observations of the effects of Ni0.3Zn0.7Fe2O4 content on the electromagnetic properties of NiFeMoSi/Ni0.3Zn0.7Fe2O4. The samples contained 5, 10. and 15% of Ni0.3Zn0.7Fe2O4 ferrite and were sintered for 30 min at 800 degrees C. An addition of Ni0.3Zn0.7Fe2O4 ferrite caused decrease of complex permeability and increase coercivity of the samples. The 5% of Ni0.3Zn0.7Fe2O4 sample exhibits the highest value of the real part of complex pernaiability (48 at 1 kHz). The 10% of Ni0.3Zn0.7Fe2O4 sample showed the lowest total magnetic losses.
Trvalý link: http://hdl.handle.net/11104/0277116