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The influence of the water content on absorption and dispersion behaviour of calcium metaphosphate glasses

Authors
Publisher
Elsevier B.V.
Publication Date
Volume
91
Issue
3
Identifiers
DOI: 10.1016/s0022-3093(87)80346-0

Abstract

Calcium metaphosphate glasses were prepared with a water content between 0.005 and 0.16 mol 1 −1. Properties measured vary in a characteristic way in dependence on the water content. An interpretation for the shift of the absorption edge to shorter wavelength with increasing OH-group concentration, which also explains the change of the glass transition and the recrystallization temperature, is proposed. Dispersion calculations for the wavelength dependence of the refractive index refer to an additional absorption band caused by the OH-groups on the short-wavelength side of the absorption determining the UV-edge

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