MOSSBAUER SPECTROSCOPIC INVESTIGATION OF IRON IN SODIUM-PHOSPHATE GLASSES

Authors
CONCAS G CONGIU F MUNTONI C PINNA G
Citation
G. Concas et al., MOSSBAUER SPECTROSCOPIC INVESTIGATION OF IRON IN SODIUM-PHOSPHATE GLASSES, Journal of physics and chemistry of solids, 56(6), 1995, pp. 877-881
Citations number
21
Categorie Soggetti
Physics, Condensed Matter",Chemistry
Journal title
Journal of physics and chemistry of solids → ACNP
ISSN journal
00223697
Volume
56
Issue
6
Year of publication
1995
Pages
877 - 881
Database
ISI
SICI code
0022-3697(1995)56:6<877:MSIOII>2.0.ZU;2-W
Abstract
We studied three sodium phosphate glasses (1 - x)NaPO3 + Fe2O3 (x = 0. 05, 0.1, 0.15) prepared n air in the same conditions using Fe-57 Mossb auer spectroscopy in order to investigate the effect of a growing Fe2O 3 addition on the features of iron sites. High spin ferric and ferrous iron in octahedral coordination is present in all the samples. We fou nd that the distortion, compared to a regular octahedron, of the ferri c and ferrous iron sites increases from the low to the high iron conte nt samples.