Influence of lanthanum doping on the strucutral, morphological and thermal characteristics of nickel ferrite
Keywords:
nickel ferrite, lanthanum doping, spinel ferrite, magnetic material, lanthanum orthoferriteAbstract
Lanthanum doped nickel ferrite – NiFe1-?La?O4 has been synthesised by solid state reaction using nickel and iron oxides (NiO and Fe2O3) and lanthanum hydroxide (La(OH)3). The samples have been investigated by X-ray diffraction, in situ-high temperature X-ray diffraction, scanning electron microscopy, energy dispersive X-ray microanalysis, and differential scanning calorimetry. The amount of the lanthanum cations which enter in the cubic spinel structure is less than 1 % – related to 100 % of the one atom of Ni from the chemical formula of nickel ferrite – NiFe2O4. In the case of all doped samples that have been prepared a secondary phase with orthorhombic structure is resulting after the heat treatment: LaFeO3 – orthoferrite. Upon increasing the lanthanum amount in the starting samples, the amount of the orthoferrite increases also. The secondary phase follows the contour of the lanthanum doped ferrite grains.
References
MENG, Y.Y., LIU, Z.W., DAI, H.C., YU, H.Y., ZENG, D.C., SHUKLA, S., RAMANUJAN, R.V., Structure and magnetic properties of Mn(Zn)Fe2-xRExO4 ferrite nano-powders synthesized by co-precipitation and refluxing method, Powder Technology, 229, pp. 270–275, 2012.
ZHOU, X., JIANG, J., LI, L., XU, F., Preparation and magnetic properties of La-substituted ZnCu-Cr ferrites via a rheological phase reaction method, J. Magn. Magn. Mater., 314, 1, pp. 7–10, 2007.
CHAUDHARI, V., SHIRSATH, S.E., MANE, M.L., KADAM, R.H., SHELKE, S.B., MANE, D.R., Crystallographic, magnetic and electrical properties of Ni0.5Cu0.25Zn0.25LaxFe2xO4 nanoparticles fabricated by sol-gel method, J. Alloys Compd., 549, pp. 213–220, 2013.
REN, X., XU, G., Electromagnetic and microwave absorbing properties of NiCoZn-ferrites doped with La3+, Journal of Magnetism and Magnetic Materials, 354, pp. 44–48, 2014.
YADAV, N., KUMAR, A., RANA, P.S., RANA, D.S., ARORA, M., PANT, R.P., Finite size effect on Sm3+ doped Mn0.5Zn0.5SmxFe2-xO4 (0? x ?0.5) ferrite nanoparticles, Ceramics International, 41, 7, pp. 8623–8629, 2015.
LIU, Z., PENG, Z., LV, C., FU, X., Doping effect of Sm3+ on magnetic and dielectric properties of Ni-Zn ferrites, Ceramics International, 43, 1 (part B), pp. 1449–1454, 2017.
JACOBO, S.E., BERCOFF, P.G., Structural and electromagnetic properties of yttrium-substituted Ni-Zn ferrites, Ceramics International, 42, 6, pp. 7664–7668, 2016.
SNELLING, E.C., Soft Ferrites (Properties and Applications), Iliffe Books Ltd, London, UK, 1969.
GOLDMAN, A., Modern Ferrite Technology, 2nd Ed., Springer Science-Business Media, USA, 2006.
CULLITY, B.D., GRAHAM, C.D., Introduction to Magnetic Materials, John Wiley&Sons, Inc., Hoboken, New Jersey, USA, 2009.
AZIZI, A., SADRNEZHAAD, S.K., Effects of annealing on phase evolution, microstructure and magnetic properties of mechanically synthesized nickel-ferrite, Ceramics International, 36, 7, pp. 2241–2245, 2010.
ŠEPELÁK, V., BAABE, D., MIENERT, D., SCHULTZE, D., KRUMEICH, F., LITTERST, F.J., BECKER, K.D., Evolution of structure and magnetic properties with annealing temperature in nanoscale high-energy-milled nickel ferrite, J. Magn. Magn. Mater., 257, pp. 377–386, 2003.
MARINCA, T.F., CHICINA?, I., ISNARD, O., NEAM?U, B.V., Nanocrystalline/nanosized manganese substituted nickel ferrites – Ni1?xMnxFe2O4 obtained by ceramic-mechanical milling route, Ceramics International, 42, 4, pp. 4754–4763, 2016.
YANG, H., ZHANG, X., AO, W., QIU, G., Formation of NiFe2O4 nanoparticles by mechanochemical reaction, Mater. Res. Bull., 39, 6, pp. 833–837, 2004.
MARINCA, T.F., CHICINA?, I., ISNARD, O., POP, V., POPA, F., Synthesis, structural and magnetic characterisation of nanocrystalline nickel ferrite – NiFe2O4 obtained by reactive milling, J. Alloys Compd., 509, pp. 7931–7936, 2011.
CHINNASAMY, C.N., NARAYANASAMY, A., PONPANDIAN, N., CHATTOPADHYAY, K., SHINODA, K., JEYADEVAN, B., TOHJI, K., NAKATSUKA, K., FURUBAYASHI, T., NAKATANI, I., Mixed spinel structure in nanocrystalline NiFe2O4, Physical Review B, 63,
, no. 184108, 2001.
WANG, Y., WU, X., ZHANG, W., CHEN, W., Synthesis and electromagnetic properties of Ladoped Ni-Zn ferrites, J. Magn. Magn. Mater., 398, pp. 90–95, 2016.
STERGIOU, C., Magnetic, dielectric and microwave absorption properties of rare earth doped Ni-Co and Ni-Co-Zn spinel ferrites, J. Magn. Magn. Mater., 426, pp. 629–635, 2017.
INBANATHAN, S.S.R., VAITHYANATHAN, V., CHELVANE, J.A., MARKANDEYULU, G., BHARATHI, K.K., Mössbauer studies and enhanced electrical properties of R (R=Sm, Gd and Dy) doped Ni ferrite, J. Magn. Magn. Mater., 353, pp. 41–46, 2014.
FÜGLEIN, E., WALTER, D., Thermal behavior of lanthanum hydroxide in the dependency of pressure, Z. Anorg. Allg. Chem., 632, pp. 2154–2157, 2006.
Published
Issue
Section
Copyright (c) 2020 The Romanian Journal of Technical Sciences. Applied Mechanics.
This work is licensed under a Creative Commons Attribution 4.0 International License.