Effect of sintering temperature on structural, magnetic, dielectric and optical properties of Ni–Mn–Zn ferrites
Abstract
Spinel ferrite Fe2O4 was prepared by a conventional ceramic process followed by sintering at three different temperatures (1050 C, 1100 C and 1150 C). X-ray diffraction (XRD) investigations stated the single-phase cubic spinel structure and the FTIR spectra revealed two prominent bands within the wavenumber region from 600 cm to 400 cm. Surface morphology showed highly crystalline grain development with sizes ranging from 0.27 m to 0.88 m. The magnetic hysteresis curve at ambient temperature revealed a significant effect of sintering temperature on both coercivity ( and saturation magnetization (. Temperature caused a decrease in DC electrical resistivity, while the electron transport increased, suggesting the semiconducting nature of all samples and that they well followed the Arrhenius law from which their activation energies were determined. The values of Curie temperature ( and activation energy were influenced by the sintering temperature. Frequency-dependent dielectric behavior (100 Hz–1 MHz) was also analyzed, which may be interpreted by the Maxwell–Wagner-type polarization. The UV–vis–NIR reflectance curve was analyzed to calculate the bandgap of ferrites, which showed a decreasing trend with increasing sintering temperature.
References
- 1. , Electric and dielectric properties of nanostructured stoichiometric and excess-iron Ni–Zn ferrites, Phys. Scr. 87, 025601 (2013). Crossref, Google Scholar
- 2. , Nanodimensional spinel NiFe2O4 and ZnFe2O4 ferrites prepared by soft mechanochemical synthesis, J. Appl. Phys. 113, 187221 (2013). Crossref, Google Scholar
- 3. , Structural and electrical characterization of Li-Zn ferrites, Int. J. Innov. Technol. Explor. Eng. 3, 48 (2014). Google Scholar
- 4. , Synthesis, structural investigation, dielectric and magnetic properties of Zn doped cobalt ferrite by the sol–gel technique, J. Adv. Dieletr. 08, 1850030 (2018). Link, Google Scholar
- 5. , Effect of sintering temperature on the structural, dielectric and magnetic properties of Fe2O4 potential for radar absorbing, J. Magn. Magn. Mater. 423, 343 (2017). Crossref, Google Scholar
- 6. , A review on MnZn ferrites: Synthesis, characterization and applications, Ceram. Int. 46, 15740 (2020). Crossref, Google Scholar
- 7. , Synthesis, structure and electromagnetic properties of Mn-Zn ferrite by sol-gel combustion technique, J. Magn. Magn. Mater. 349, 116 (2014). Crossref, Google Scholar
- 8. , Critical enhancements of MRI contrast and hyperthermic effects by dopant-controlled magnetic nanoparticles, Angew. Chem., Int. Ed. 48, 1234 (2009). Crossref, Google Scholar
- 9. , Nanostructured Mg substituted Mn-Zn ferrites: A magnetic recyclable catalyst for outstanding photocatalytic and antimicrobial potentials, J. Hazard. Mater. 399, 12300 (2020). Google Scholar
- 10. , Effects of additives and sintering time on the microstructure of Ni-Zn ferrite and its electrical and magnetic properties, Adv. Mater. Sci. Eng. 2014, 138789 (2014). Crossref, Google Scholar
- 11. , Recent developments of Mn–Zn ferrites for high permeability applications, J. Magn. Magn. Mater. 254–255, 535 (2003). Crossref, Google Scholar
- 12. , Structural analysis of the Mn–Zn ferrites using XRD technique, J. Mater. Sci. Eng. B 118, 84 (2005). Crossref, Google Scholar
- 13. , Dielectric properties of Mn-substituted Ni-Zn ferrites, J. Appl. Phys. 91, 6626 (2002). Crossref, Google Scholar
- 14. , Influence of microstructure on the complex permeability of spinel type Ni–Zn ferrite, J. Magn. Magn. Mater. 305, 269 (2006). Crossref, Google Scholar
- 15. , Synthesis and characterization of structural, and electrical properties of Mg(0.25x)Cu(0.25x)Zn(1–0.5x)Fe2O4 ferrites by sol-gel method, Ukr. J. Phys. 64, 861 (2019). Crossref, Google Scholar
- 16. , Structural and magnetic properties of Cr-substituted NiCuZn ferrite, High Temp. Mater. Process. 35, 531 (2016). Crossref, Google Scholar
- 17. , Influence of rare-earth ions on structural and magnetic properties of CdFe2O4 ferrites, J. Rare Met. 29, 168 (2010). Crossref, Google Scholar
- 18. , Synthesis of nanocrystalline Cd–Zn ferrite by ball milling and its stability at elevated temperatures, J. Alloys Compd. 489, 91 (2010). Crossref, Google Scholar
- 19. , Influence of Ni substitution on structural, morphological, dielectric, magnetic and optical properties of Cu-Zn ferrite by double sintering sol-gel technique, J. Adv. Dieletr. 09, 1950020 (2019). Link, Google Scholar
- 20. , Electrical and magnetic properties of Mn–Ni–Zn ferrites processed by citrate precursor method, Mater. Lett. 57, 1040 (2003). Crossref, Google Scholar
- 21. , Structure and magnetic properties of Co and Ni nano-ferrites prepared by a two step direct microemulsions synthesis, J. Magn. Magn. Mater. 341, 93 (2013). Crossref, Google Scholar
- 22. , Synthesis and characterization of structural, magnetic and electrical properties of Ni–Mn–Zn ferrites, Int. J. Nanoelectron. Mater. 11, 15 (2018). Google Scholar
- 23. , Finite size effects on the electrical properties of sol–gel synthesized CoFe2O4 powders: Deviation from Maxwell–Wagner theory and evidence of surface polarization effects, J. Phys. D, Appl. Phys. 40, 1593 (2006). Crossref, Google Scholar
- 24. , The synthesis and magnetic properties of nanosized hematite (-Fe2 particles, J. Colloid Interface Sci. 249, 346 (2002). Crossref, Google Scholar
- 25. , Effect of Sr-substitution on the structural and magnetoelectric properties of Ni-Zn ferrites, Bang. J. Phys. 26, 1 (2019). Google Scholar
- 26. , Thermodynamics of densification: II, Grain growth in porous compacts and relation to densification, J. Am. Ceram. Soc. 72, 735 (1989). Crossref, Google Scholar
- 27. , Modified co-precipitation process effects on the structural and magnetic properties of Mn-doped nickel ferrite nanoparticles, Solid State Sci. 99, 106052 (2020). Crossref, Google Scholar
- 28. , Effect of nickel substitutions on some properties of Cu-Zn ferrites, J. Alloys. Compd. 468, 15 (2009). Crossref, Google Scholar
- 29. , Infrared spectra of ferrites, Phys. Rev. 99, 1727 (1955). Crossref, Google Scholar
- 30. , Effect of cobalt substitution on structural, magnetic and electric properties of nickel ferrite, J. Alloys Compd. 478, 599 (2009). Crossref, Google Scholar
- 31. , Direct imaging of zero-field dipolar structures in colloidal dispersions of synthetic magnetite, J. Am. Chem. Soc. 126, 51 (2004). Crossref, Google Scholar
- 32. , Correlation between particle size/domain structure and magnetic properties of highly crystalline Fe3O4 nanoparticles, Sci. Rep. 7, 9894 (2017). Crossref, Google Scholar
- 33. , Static and dynamic magnetic properties of spherical magnetite nanoparticles, J. Appl. Phys. 94, 3520 (2003). Crossref, Google Scholar
- 34. , Nanocrystalline soft magnetic materials, J. Magn. Magn. Mater. 112, 258 (1992). Crossref, Google Scholar
- 35. , Sintering effect on structural, magnetic and optical properties of Fe2O4 ferrite nano particles, J. Magn. Magn. Mater. 423, 217 (2017). Crossref, Google Scholar
- 36. , Improved structural and magnetic properties of cobalt nanoferrites: Influence of sintering temperature, Ceram. Int. 41, 4492 (2014). Crossref, Google Scholar
- 37. , Effect of Pr-doping on the structural, elastic and magnetic properties of Mn–Zn ferrite nanoparticles prepared by solution combustion synthesis method, Chem. Data Collect. 24, 100273 (2019). Crossref, Google Scholar
- 38. , Low-temperature sintering of Ni–Zn–Cu ferrite and its permeability spectra, J. Magn. Magn. Mater. 168, 285 (1997). Crossref, Google Scholar
- 39. , Characterization and preparation of nanocrystalline MgCuZn ferrite powders synthesized by sol–gel auto-combustion method, J. Sol-Gel Sci. Technol. 52, 171 (2009). Crossref, Google Scholar
- 40. , High permeability–high frequency stable MnZn ferrites, J. Magn. Magn. Mater. 324, 2788 (2012). Crossref, Google Scholar
- 41. , Domain wall dispersions: Relaxation and resonance in Ni–Zn ferrite doped with V2O5, J. Appl. Phys. 108, 103901 (2010). Crossref, Google Scholar
- 42. , The effect of sintering time and temperature on the electrical properties of MnZn ferrites, Appl. Phys. A 89, 203 (2007). Crossref, Google Scholar
- 43. , High-permeability and high-Curie temperature NiCuZn ferrite, J. Magn. Magn. Mater. 283, 157 (2004). Crossref, Google Scholar
- 44. , Microstructure, dielectric, and piezoelectric properties of Nb2wt% TiO2 ceramics: Effect of sintering temperature, J. Am. Ceram. Soc. 94, 3364 (2011). Crossref, Google Scholar
- 45. , Studies on anomalous behavior at curie point of some classes of mixed ferrites, Bang. J. Sci. Ind. Res. 41, 171 (2006). Crossref, Google Scholar
- 46. , On the dispersion of resistivity and dielectric constant of some semiconductors at audio frequencies, Phys. Rev. B 83, 121 (1951). Crossref, Google Scholar
- 47. , The distribution of relaxation times in typical dielectrics, Ann. Phys. 40, 817 (1973). Google Scholar
- 48. , Frequency and composition dependence of dielectric behavior of mixed Li-Cd ferrite, Indian J. Pure Appl. Phys. 33, 74 (1995). Google Scholar
- 49. , Heat treatment effects on microstructure and magnetic properties of Mn-Zn ferrite powders, J. Magn. Magn. Mater. 322, 173 (2010). Crossref, Google Scholar
- 50. , Structural and dielectric properties of rare earth doped lithium nanoferrites for sensing applications, J. Supercond. Nov. Magn. 30, 3573 (2017). Crossref, Google Scholar
- 51. , Grain size effects on the dielectric properties of ferroelectric Bi2 ceramics, J. Mater. Sci. 29, 2691 (1994). Crossref, Google Scholar
- 52. , Influence of CuO and sintering temperature on the microstructure and magnetic properties of Mg–Cu–Zn ferrites, J. Magn. Magn. Mater. 320, 2792 (2008). Crossref, Google Scholar
- 53. , Optical and magnetic characterizations of zinc substituted copper ferrite synthesized by a co-precipitation chemical method, J. Alloys Compd. 741, 123 (2018). Crossref, Google Scholar