The Influence of Various Dopants on Magnetic Properties of Gehlenite Glasses

The Bi and Ni-doped gehlenite glasses were prepared by flame synthesis. The concentration of Bi and Ni was 0.0, 0.5 and 3.0 mol. %. Scanning electron microscopy (SEM) confirmed that spherical particles which did not contain any formations indicating the presence of crystalline phases were prepared by the flame synthesis. The amorphous nature of the prepared systems was also confirmed by the results of X-ray diffraction analysis. Both the Ni and Bi-doped gehlenite glass microspheres exhibited complex magnetic properties.