Publikace detail

Investigation of multicomponent PbO-B2O3-P2O5-WO3 glasses

Rok: 2013

Druh publikace: ostatní - článek ve sborníku

Název zdroje: 12th International Conference Structure of Non-Crystalline Materials: Program and Abstracts

Název nakladatele: University of Trento

Místo vydání: Trento

Strana od-do: 236

Tituly:

Jazyk	Název	Abstrakt	Klíčová slova
eng	Investigation of multicomponent PbO-B2O3-P2O5-WO3 glasses	In this contribution lead borophosphate glasses of the composition (1-x)[50PbO-yB2O3-(50-y)P2O5]-xWO3 with 0-55 mol% WO3. For the compositions with 10, 30 and 50 mol%WO3 glasses with the changing ratio B2O3/P2O5 = 5/45, 10/40 and 15/45 were synthesized and studied as well. 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.	borophosphate glasses; structure; NMR; Raman spectra

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