A study on the spectral, microstructural, and magnetic properties of Eu-Nd double-substituted Ba0.5Sr0.5Fe12O19 hexaferrites synthesized by an ultrasonic-assisted approach


Almessiere M. A. , Slimani Y., Korkmaz A. , Baykal A., Albetran H., Saleh T. A. , ...More

ULTRASONICS SONOCHEMISTRY, vol.62, 2020 (Journal Indexed in SCI) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 62
  • Publication Date: 2020
  • Doi Number: 10.1016/j.ultsonch.2019.104847
  • Title of Journal : ULTRASONICS SONOCHEMISTRY
  • Keywords: Ultrasonic sonochemistry, M-type hexaferrites, Rare earth doping, BET analysis, Magnetic belongings, ANTIBACTERIAL BIOMEDICAL ACTIVITY, AC SUSCEPTIBILITY, HYPERFINE INTERACTIONS, IONS, IMPACT

Abstract

In this study, an examination on the spectral, microstructural, and magnetic characteristics of Eu-Nd double-substituted Ba0.5Sr0.5Fe12O19 hexaferrites (Ba0.5Sr0.5NdxEuxFe12-2xO19 (x = 0.00-0.05) HFs) fabricated by an ultrasonic-assisted approach has been presented. An UZ SONOPULS HD 2070 ultrasonic homogenizer with frequency of 20 kHz and power of 70 W was used. The chemical bonding, structure and the morphology of the products were evaluated by Fourier-Transform Infrared (FT-IR) Spectroscopy, XRD (X-ray diffraction), scanning and transmission electron microscopy and techniques. The textural properties of the prepared nanomaterials were examined by using the Brunauer-Emmett-Teller (BET) method. The magnetic properties were studied using a vibrating sample magnetometer (VSM) at room temperature (RT) and low temperature 10 K. The magnitudes of various magnetic parameters including M-s (saturation magnetization), M-r (remanence) and H-c (coercivity) were estimated and evaluated. The M-H loops revealed the hard ferrimagnetic nature for all products at both temperatures. The M-s and M-r values showed a decreasing tendency with increasing degree of Eu3+ and Nd3+ substitutions whereas H-c values displayed an increasing trend. At RT, M-s, M-r and H-c values lie in the ranges of 63.0-68.8 emu.g(-1), 24.6-39.2 emu.g(-1) and 2252.4-2782.1 Oe, respectively. At 10K, the values of M-s, M-r and H-c lie between 87.5-97.1 emu.g(-1), 33.5-40.1 emu.g(-1) and 2060.6-2417.2 Oe, respectively. The observed magnetic properties make the prepared products promising candidates to be applied in the recording media.