Examining alloying effect on K X ray intensity ratios and chemical shifts of the Zn, Mn and mixed spinel ferrites

Perişanoğlu U., Kavaz E., Urtekin E., Demir L.

Applied Radiation and Isotopes, cilt.156, 2020 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 156
  • Basım Tarihi: 2020
  • Doi Numarası: 10.1016/j.apradiso.2019.108980
  • Dergi Adı: Applied Radiation and Isotopes
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aquatic Science & Fisheries Abstracts (ASFA), Chemical Abstracts Core, Chimica, Compendex, EMBASE, Food Science & Technology Abstracts, INSPEC, MEDLINE, Pollution Abstracts
  • Anahtar Kelimeler: Spinel ferrite, Alloying effect, K beta/Ka X-ray intensity ratios, Chemical shifts, ELECTRONIC-STRUCTURE, ALPHA, CU, NI, PARAMETERS, CO
  • Atatürk Üniversitesi Adresli: Evet

Özet

K X-ray emission spectra of Zn, Mn and mixed (Zn-Mn, Zn- Co, Zn-Ni) spinel ferrites have been acquired by inducing 59.54 keV and 22.1 keV gamma-rays emitted from 3 Ci Am-241 annular source and 40 mCi Cd-109 point source with a HPGe detector. Some vital parameters for XRF, K beta/K alpha X-ray intensity ratios, the full width at half maximum (FWHM) values, asymmetry index (A(s)), peak energies and chemical shifts (Delta E), were defined depending on the alloying effect by working on the spectra. The obtained results exhibited that, compared to the pure states of the metals, chemical shifts aroused due to different crystal structure, valence electron structure, bond type and length in the spectrum of the alloy form. The difference of the electronegativity of the metals forming the ferrite obviously explained the change in the K beta/K alpha X-ray intensity ratios. It has been concluded that the charge transfer mechanism predominates mainly and altered the intensity ratios of the metal by affecting the rearrangement of the 3d electrons in the valence band.