Thermal stability of a low Tg phosphate glass investigated by DSC, XRD and solid state NMR
Source abstract
Abstract
Abstract The thermal stability of a low Tg phosphate glass (Tg = 339 °C), formulated in the ZnO–Na 2 O–P 2 O 5 system, is investigated in this contribution by Differential Scanning Calorimetry (DSC), X-Ray diffraction (XRD) and solid state Nuclear Magnetic Resonance (NMR). DSC measurement indicates a very important T x − T g value (197 °C) for the investigated composition compared to other low Tg phosphate glasses found in literature. XRD and 1D 31 P solid state NMR were used to monitor the isothermal crystallization process occurring at 60 °C above Tg (400 °C). The mixture of phases formed after crystallization cannot be identified by XRD but 2D MAS-NMR experiment provides valuable information about the composition and the structure of the unknown sample.
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Research context
OpenAlex topics: Glass properties and applications · Luminescence Properties of Advanced Materials · Phase-change materials and chalcogenides
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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