TITLE:
Elaboration and Structural Investigation of Iron (III) Phosphate Glasses
AUTHORS:
Said Aqdim, Malika Ouchetto
KEYWORDS:
Phosphate Glasses; Glass Formation; Chemical Resistance; IR Spectroscopy; XRD; SEM
JOURNAL NAME:
Advances in Materials Physics and Chemistry,
Vol.3 No.8,
December
31,
2013
ABSTRACT: The regular melting-quenching method allowed isolating
very large vitreous domains within the ternary system Li2O-P2O5-Fe2O3 at 1100. The vitrification and crystallization effects are discussed in terms
of phosphorus pentaoxide concentration (mol%). In the course of the present
study, we analyzed chemical durability along the glass domain and many sample
glasses were isolated. We noticed that our compounds demonstrated very high
chemical resistance to attack, even with very highly concentrated mineral acid
solutions. This behavior can be assigned to the presence of poorly crystalline
phases in these glasses, which tended to increase as the Fe2O3 content
increased. This property is a prerequisite for many interesting industrial
applications. XRD, IR spectroscopy and SEM micrographs allowed an efficient investigation
of the structural changes versus composition within ternary diagrams. The
results were found to be consistent with the regular structural changes of
phosphate glasses.