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Structural Characterization and Analysis of Glasses in the Al2O3-B2O3-Fe2O3-Na2O-SiO2 System

  • S.V. Stefanovsky (a1) (a2), B.S. Nikonov (a3), B.I. Omelyanenko (a3), K.M. Fox (a4) and J.C. Marra (a4)...

Abstract

Glasses in the Al2O3-B2O3-Fe2O3-Na2O-SiO2 system were produced at a temperature of 1150 °C, annealed, and examined using XRD and SEM/EDX. Surfaces of same samples were additionally heat-treated and etched with HCl. The pristine samples were X-ray amorphous and rather homogeneous except the B1 sample that contained trace crystalline phases of carnegieite/nepheline and spinel. Corrosion of these glasses via an etching treatment proceeds by a conventional mechanism with damage of their surface layers, however, the B2 glass exhibits a “drop-type” microstructure after etching that suggests occurrence of liquid-liquid phase separation.

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Keywords

Structural Characterization and Analysis of Glasses in the Al2O3-B2O3-Fe2O3-Na2O-SiO2 System

  • S.V. Stefanovsky (a1) (a2), B.S. Nikonov (a3), B.I. Omelyanenko (a3), K.M. Fox (a4) and J.C. Marra (a4)...

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