Crystallization of BiZnFeBO glasses

Glassy or polycrystalline samples containing Bi 2O 3ZnOFe 2O 3B 2O 3 have been prepared. The main crystalline phases separated during the cooling were BiFeO 3, ZnFe 2O 4, α-Bi 2O 3 and β-Bi 2O 3. Neutron diffraction studies detected also the presence of iron oxide clusters. Thermal analysis perfo...

Full description

Saved in:
Bibliographic Details
Published in:Journal of non-crystalline solids 1989-10, Vol.112 (1), p.191-197
Main Authors: Dimesso, L., Gnappi, G., Montenero, A., Fiorani, D., Pye, L.D.
Format: Article
Language:English
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Glassy or polycrystalline samples containing Bi 2O 3ZnOFe 2O 3B 2O 3 have been prepared. The main crystalline phases separated during the cooling were BiFeO 3, ZnFe 2O 4, α-Bi 2O 3 and β-Bi 2O 3. Neutron diffraction studies detected also the presence of iron oxide clusters. Thermal analysis performed on the vitreous samples gave the glass transition temperature and the crystallization temperature. The activation energy of the crystallization process for one sample was measured by isothermal and dynamic methods. The values obtained are 191 and 182 kcal/mol respectively. The reaction order was equal to 1.35.
ISSN:0022-3093
1873-4812
DOI:10.1016/0022-3093(89)90520-6