ISSN:
1089-7550
Source:
AIP Digital Archive
Topics:
Physics
Notes:
The results of magnetic measurements performed on xFe2O3(1−x)[yB2O3 PbO] glasses having y=0.5, 1, 2, and 3 and x≤25 mol % Fe2O3 are reported. For identical Fe2O3 content the Curie constants are greater as the PbO content of the glass matrix is higher. This is due to the increase of the fraction of Fe3+ ions as evidenced by Mössbauer effect measurements. As B2O3 content increases, a more random distribution of the ferric ions in the glass matrix takes place. Under the action of fast neutrons some iron ions situated in clusters are displaced and occupy sites more randomly distributed in the B2O3-PbO matrix. In addition, a fraction of ferrous ions is converted to ferric.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.335740