Structural properties of sodium-iron phosphate glasses

Guomei Wang; Yuan Wang; Baohui Jin

doi:10.1117/12.190949

21 October 1994 Structural properties of sodium-iron phosphate glasses

Guomei Wang, Yuan Wang, Baohui Jin

Proceedings Volume 2287, Properties and Characteristics of Optical Glass III; (1994) https://doi.org/10.1117/12.190949
Event: SPIE's 1994 International Symposium on Optics, Imaging, and Instrumentation, 1994, San Diego, CA, United States

Abstract

The affects of iron on the structure, physical, and optical properties of several iron phosphate and sodium-iron phosphate glasses were investigated using x-ray photoelectron spectroscopy (XPS), Mossbauer spectroscopy, and infrared spectroscopy (IR). Archimedes method, differential scanning colorimeter and Able refractometer measurements were used to determine the glass density (d), transition temperature (T_g), and refractive index (n), respectively. XPS and Mossbauer spectra showed the presence of iron in both the Fe²⁺ and Fe³⁺(4- and 6-coordinated) states. With the increase of Fe₂O₃ content in the iron phosphate glasses and the increase of Na₂O content in the sodium-iron phosphate glasses, the Fe²⁺/Fe ratio decreases and the Fe³⁺(4-coordinated)/Fe ratio increases. The infrared measurements showed that the increase in the Fe₂O₃ content or the Na₂O content caused a change in coordination from FeO₆ to FeO₄. Finally, the relationship between the properties and the Fe²⁺Fe³⁺(4-coordination) ratio is discussed briefly.

Citation Download Citation

Guomei Wang, Yuan Wang, and Baohui Jin "Structural properties of sodium-iron phosphate glasses", Proc. SPIE 2287, Properties and Characteristics of Optical Glass III, (21 October 1994); https://doi.org/10.1117/12.190949

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