An Effect of Calcination Temperatures on the Characteristics of the Mgfe₂o₄ Nano Ferrite Prepared Using Auto Combustion Method

Ahmed Yaseen , Tahseen. H. Mubarak , Sabah M. Ali Ridha

Abstract

Nanosized magnesium ferrite MgFe2O4 was synthesized using sol-gel auto combustion method as a burnt powder calcined at different temperatures (350, 500, 650, 800 and 950 C˚). These powders were pressed into a disk shape compact, and sintered at 1100 C˚ for 3 hours. The X-ray diffraction patterns of the ferrite powders showed the formation of spinal cubic structure, whereas the crystallite size increased with increasing calcined temperatures from 29 to 42 nm. The absorption bands of the FTIR spectra of all the ferrite powders showed that the magnesium ferrite had two absorption bands within the range of (408.9 – 563.2 cm-1) for high and low frequencies. The dielectric constant, dielectric loss and ac conductivity for the sample sintered at (1100 C˚) were studied as a function of frequency at room temperature by using LCR meter. The variation of dielectric properties at frequencies from 50Hz to 1MHz has been explained on the basis of Koop’s theory. Maxwell-Wagner polarization process at hopping of electrons for all the dielectric properties indicated normal behavior with increasing the frequency. The particle size represented by AFM was found to be within the range of (67.49 nm), and the square root of the average roughness was directly of proportional particle size and granular boundary limitations.

References

A. M., Mohammad, S. M. A. Ridha, , & T. H. Mubarak, (2018). Dielectric Properties of Cr-Substituted Cobalt Ferrite Nanoparticles Synthesis by Citrate-Gel Auto Combustion Method. International Journal of Applied Engineering Research, 13(8), 6026-6035.

A. Pradeep,  P. Priyadharsini,  & G. Chandrasekaran, (2008). Sol–gel route of synthesis of nanoparticles of MgFe2O4 and XRD, FTIR and VSM study. Journal of Magnetism and Magnetic Materials, 320(21), 2774-2779.‏

B.k.Nath,P.K.Chakrabarti,S.das,U.kumr,P.K.MukhopadhyayandD.das., surface sci. techno. vol.21, No. 3-4, pp. 169-182 (2005).

Gh. Khalaf. Salman, “preparation and study the characteristics of magnesium ferrite materials” M.Sc. thesis, school of applied sciences, university of technology, 2012.

 Haripriya S, Ajitha P. Antimicrobial efficacy of silver nanoparticles of Aloe vera. J Adv Pharm Edu Res 2017;7(2):163-167.

I. K. Jassim, R. A. mohammad & H. MK. Farage  “The Effect of Heat Treatment on The Magnetic properties of The (Fe-Ni) Alloys Prepared by powder Metallurgy Method” Vol. 18, No. 2, pp.,244-248, (2013)

L. S. Mahmood,” Preparation of Co1-xZnxFe2O4 nano ferrite and study of its electrical and structural properties” Scientific Research University of Diyala College of Science Department of Physics, P(63,64),(2012) .

 Mahmoud,Z. Hassan, K.H. Abdul Sattar, O.D. & Kefah Ali,F. Low Temperature Novel Photosynthesis Method and Characterization of ZnO/CuO Nano composite. J Biochem Tech (2018) 9(3): 1-4.

M.N. Ashiq," Effect on Physical, Electrical and Magnetic Properties of  Strontium Hex ferrite Nanomaterial Doped with Binary Mixtures of Various Metal Ions", Ph.D thesis, University Islamabad ,4-14,(2009).

N.H.Alwash," The effect of sintering time on the magnetic properties Ni 1-x ZnxFe2O4 for the syntheses”, The Iraqi Journal For Mechanical And Material Engineering,(c), 499-511 , (2009).

P.K. Roy," Enhancement of the magnetic properties of Ni–Cu–Zn ferrites with the substitution of a small fraction of lanthanum for iron", National Institute of Technology Journal, 42(1), 77-83,(2006).

Rawnaq B. J., Zaid H. M., Farah K. A., Evaluation the efficiency of CuFe2O4 prepared photolysis by OSD and photo degradation, Entomol Appl Sci Lett, 2018, 5 (2): 91-100.

S. M. Rathod," Synthesis and characterization of Nano crystalline NiCuZn Ferrite prepared by Sol-gel auto combustion method". International Journal of Advancements in Research and Technology, 6(1), 2278-7763, (2012).

S. Thankachan, S. Xavier, B. Jacob, & E. M. Mohammed, (2013). A comparative study of structural, electrical and magnetic properties of magnesium ferrite nanoparticles synthesized by sol-gel and co-precipitation techniques. Journal of experimental Nanoscience, 8(3), 347-357.‏

Z. Lazarevi," Preparation and Characterization of Nano Ferrites”, Acto Physical polonica Journal, 3(121), 682-687, (2011).



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