EPR spectroscopy of neutron irradiated nanocrystalline boron nitride (h-BN) particles

Huseynov E. M., Naghiyev T., Garibov A. A., Abbasov N. R., Samedov O. A., Gasimov R. C., ...More

CERAMICS INTERNATIONAL, vol.47, no.5, pp.7218-7223, 2021 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 47 Issue: 5
  • Publication Date: 2021
  • Doi Number: 10.1016/j.ceramint.2020.11.075
  • Journal Name: CERAMICS INTERNATIONAL
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Chemical Abstracts Core, Communication Abstracts, INSPEC, Metadex, Civil Engineering Abstracts
  • Page Numbers: pp.7218-7223
  • Azerbaijan State University of Economics (UNEC) Affiliated: No

Abstract

Paramagnetic centers in the nanocrystalline boron nitride (h-BN) particles were comparatively studied before and after neutron irradiation. Electron Paramagnetic Resonance (EPR) spectroscopic analyzes were performed in the broad range of magnetic field from 0.05 to 0.55 T (500-5500 Gauss). The range of 0.3270-0.3370 T was additionally sweeped, where more paramagnetic centers were observed. The nature of the new paramagnetic centers formed as a result of neutron transmutation in the BN nanoparticles were examined by EPR spectra. Formation mechanism of VB and VN vacancies has been studied in detail by neutron transmutations.