Review article

https://doi.org/10.5562/cca2759

Iron Phosphate Glass-ceramics

Andrea Moguš-Milanković ; Ruđer Bošković Institute, Division of Materials Chemistry, HR-10000 Zagreb, Croatia
Ana Šantić ; Ruđer Bošković Institute, Division of Materials Chemistry, HR-10000 Zagreb, Croatia
Luka Pavić ; Ruđer Bošković Institute, Division of Materials Chemistry, HR-10000 Zagreb, Croatia
Kristina Sklepić ; Ruđer Bošković Institute, Division of Materials Chemistry, HR-10000 Zagreb, Croatia

Abstract

The crystallization of 40Fe₂O₃-60P₂O₅, 10ZnO-30Fe₂O₃-60P₂O₅ and (43.3−x)PbO–(13.7+x)Fe₂O₃–43P₂O₅, (0 < x < 30), glasses and glass-ceramic have been investigated. The structural evolution of glasses during heat treatment at various temperatures and the tendency for crystallization for series of glasses with modified composition are characterized by a dendrite-like phase separation in the early stage of crystallization. Such a behavior leads to the formation of randomly dispersed agglomerates which contain the anhedrally shaped crystallites embedded in glass matrix. Therefore, regardless of the type of crystallization, controlled or spontaneous, the formation of crystalline phases in these phosphate glasses and glass-ceramics is attributed to the disordered interfaces between crystalline grains and glassy matrix.

Keywords

iron phosphate glass; iron phosphate glass-ceramics; Raman spectroscopy; X-ray diffraction; scanning electron microscopy

Hrčak ID:

151221

URI

https://hrcak.srce.hr/151221

Publication date:

31.12.2015.

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