THE EFFECTS OF GAMMA-RADIATION AND DIFFERENT SUBSTITUTION ON THE SPECTRO-MECHANICAL PROPERTIES OF LA-FERRITE POLYCRYSTALS

Authors
ABOUSEKKINA MM GOMMA GEK ELHEFNAY GB NASSAR AMA
Citation
Mm. Abousekkina et al., THE EFFECTS OF GAMMA-RADIATION AND DIFFERENT SUBSTITUTION ON THE SPECTRO-MECHANICAL PROPERTIES OF LA-FERRITE POLYCRYSTALS, Journal of radioanalytical and nuclear chemistry, 213(6), 1996, pp. 385-401
Citations number
22
Categorie Soggetti
Chemistry Inorganic & Nuclear","Chemistry Analytical","Nuclear Sciences & Tecnology
Journal title
Journal of radioanalytical and nuclear chemistry → ACNP
ISSN journal
02365731
Volume
213
Issue
6
Year of publication
1996
Pages
385 - 401
Database
ISI
SICI code
0236-5731(1996)213:6<385:TEOGAD>2.0.ZU;2-V
Abstract
Various samples of different substituted La-ferrites (La(1-x1)A(x)1(Fe 1-x2Bx2)O-3) have been prepared by the usual ceramic and high temperat ure sintering technique. On these specimens several measurements were carried out, namely, Cu-K-alpha X-ray analysis, true density, bulk den sity, thermogravimetric analysis (TGA), differential scanning calorime try (DSC), IR absorption spectra, electronic absorption spectra and cr ushing strength before and after gamma-radiation dose (4.5x10(7) rad). Results reported were promising, interpreted and discussed in detail on the basis of the interaction of gamma-radiation and different dopan t cations with La-ferrite lattices. Finally, a suggested lattice struc ture symbol was put forward.