Elaboration and Structural Investigation of Iron (III) Phosphate Glasses

Said Aqdim, Malika Ouchetto

Laboratoire de Chimie du Solide Appliquée, Faculty of Science Rabat, University Mohammed V, Rabat, Morocco.
Laboratoire de Physique de Haute Energie et de l’Etat Condensé University Hassan II Ain Chock, Casablanca, Morocco 2Laboratoire de Chimie Minérale, Département de Chimie, Faculty of Sciences, Université Hassan II Ain Chock, Casablanca, Marocco.

DOI: 10.4236/ampc.2013.38046                

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.

Keywords

Phosphate Glasses; Glass Formation; Chemical Resistance; IR Spectroscopy; XRD; SEM

Conflicts of Interest

The authors declare no conflicts of interest.

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