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Effect of the synthesis parameters on the structural and magnetic properties of strontium hexaferrite synthesized via the Pechini method

  • Alfonso Enrique Ramírez Sanabria , Norleth Jairo Solarte Ordoñez , Valeria Nastar Córdova , José Antonio Huamani Coaquira and Sonia Gaona Jurado
Published/Copyright: September 7, 2020
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International Journal of Materials Research
From the journal International Journal of Materials Research Volume 111 Issue 9

Abstract

Strontium hexaferrite (SrFe12O19–SF6) is a magnetic material of great interest in various research fields due to its high coercive field (Hc) and its high saturation magnetization. In this research, the effect of synthesis parameters on the structure and magnetic response was studied. It was evidenced that the parameters such as pH value and iron precursor type have a strong influence on the crystalline structure of the samples, since the pure phase of strontium hexaferrite was obtained by two different pathways (ferrous and ferric) and only at pH = 5. It was determined that there are differences in the magnetic response of both samples; the ferrous pathway generates the largest values of both saturation magnetization (74.3 emu g−1) and coercive field (5.2 kOe).

Keywords: Strontium hexaferrite; Pechini method; Magnetic properties
∗ Correspondence address, Docteur de l′Université de Poitiers, Alfonso Enrique Ramírez Sanabria, Catalysis Group, Department of Chemistry, University of Cauca, Calle 5 No. 4-70, Popayán, 190001, Colombia, Tel.: +57 313-7387469, Fax: +57 (2)-8209900, E-mail: , Web: http://facultades.unicauca.edu.co/educacion/grupos/ver_info_general/4

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Received: 2020-01-18
Accepted: 2020-04-23
Published Online: 2020-09-07
Published in Print: 2020-09-16

© 2020, Carl Hanser Verlag, München

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https://doi.org/10.3139/146.111932
Keywords for this article
Strontium hexaferrite; Pechini method; Magnetic properties

Articles in the same Issue

  1. Contents
  2. Contents
  3. Editorial
  4. Welcome to Prof. Joachim Bill as a new editor for IJMR
  5. Original Contributions
  6. Fabrication of highly porous merwinite scaffold using the space holder method
  7. Improvement of AISI 4340 steel properties by intermediate quenching – microstructure, mechanical properties, and fractography
  8. Hardness and corrosion properties of functionally graded AA5083/Al2O3 composites produced by powder metallurgy method
  9. Production and properties of functionally graded hybrid composites containing Al3Ti and TiB2
  10. Experimental measurement and thermodynamic model predictions of the distributions of Cu, As, Sb and Sn between liquid lead and PbO–FeO–Fe2O3–SiO2 slag
  11. Effect of Co substitution on the magnetic properties and magnetocaloric effects of Ni–Co–Mn–Sn alloys
  12. Effect of the synthesis parameters on the structural and magnetic properties of strontium hexaferrite synthesized via the Pechini method
  13. Investigation on microstructural and mechanical properties of sub-zero processed AISI 440C steel
  14. Effects of rail flash-butt welding and post-weld heat treatment processes meeting different national standards on residual stresses of welded joints
  15. DGM News
  16. DGM News
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