Magnetic Properties of Mechanochemically Synthesized Mixed Oxides

• Authors: N. Kostova , A. Zorkovská , J. Kováč , N. Velinov , P. Baláž
• Languages of publication: EN

Abstracts

EN

The mixed oxides Fe_{2}O_{3}-ZnO have been obtained in nanocrystalline state by reactive milling in a high-energy planetary mill, from a stoichiometric mixture of hematite and ZnO. The magnetic properties of samples were evaluated by magnetization measurements and Mössbauer spectrometry. A post milling annealing promotes the solid state reaction and improves the zinc ferrite formation, paramagnetic ZnFe_{2}O_{4} phase is formed. Further mechanical activation leads to structural transformation into Wüstite-type (FeZn)O mixed oxide, with ferromagnetic hysteresis and increased magnetization.

Keywords

EN

77.84.Bw   75.60.-d   76.80.+y   61.05.cp   81.07.Wx  

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2014
• Volume: 126
• Issue: 1
• Pages: 411-412

Dates

published

2014-07

References

• [1] A.K. Mishra, D. Das, Mater. Sci. Eng. B 171, 5 (2010), doi: 10.1016/j.mseb.2010.03.045
• [2] T. Tangcharoen, A. Ruangphanit, W. Pecharapa, Ceramics Inter. 39, S239 (2013), doi: 10.1016/j.ceramint.2012.10.069
• [3] Ch-Yao, Q. Zheng, G.F. Goya, T. Torres, J. Liu, H.Wu, M. Ge, Y. Zeng, Y. Wang, J.Z. Jiang, J. Phys. Chem. C 111, 12274 (2007), doi: 10.1021/jp0732763
• [4] P. Baláž, Mechanochemistry in Nanoscience and Mineral Engineering , ISBN: 3540748547, Springer-Verlag, Berlin Heidelberg, (2008)

Identifiers

DOI

10.12693/APhysPolA.126.411