Publikace detail

Structural studies of lead borophosphate glasses modified by tungsten oxide with the application of 11B MAS NMR and Raman spectroscopy

Rok: 2013

Druh publikace: ostatní - článek ve sborníku

Název zdroje: The 23rd International Congress on Glass 2013: Book of Abstracts

Název nakladatele: Česká sklářská společnost

Místo vydání: Teplice

Strana od-do: 35

Tituly:

Jazyk	Název	Abstrakt	Klíčová slova
eng	Structural studies of lead borophosphate glasses modified by tungsten oxide with the application of 11B MAS NMR and Raman spectroscopy	Borophosphate glasses reveal better thermal stability and chemical durability than phosphate glasses. Their doping by heavy metal oxides shows promising electronic applications. In this contribution lead borophosphate glasses of the composition (1-x)[50PbO-yB2O3-(50-y)P2O5]-xWO3 with 0-60 mol% WO3 and with 15-25 mol% B2O3 were synthesized and their structure was studied by 11B MAS NMR and Raman spectroscopy. The effect of composition on the properties of these glasses and the relations between composition, structure and properties were evaluated. The addition of tungsten oxide to borophosphate glasses increases their thermal stability, glass transition temperature and chemical durability. Structural studies were devoted to the investigation of changes in boron coordination in the dependence on changes of WO3 content and of the B2O3/P2O5 ratio in the lead borophosphate glasses.	Structure; borophosphate glasses; NMR; Raman; spectroscopy

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