Publication detail

Vybrané vlastnosti skiel sústavy PbO-WO3-P2O5

Authors: Lissová Magdaléna | Koudelka Ladislav | Mošner Petr | Chromčíková Mária | Liška Marek

Year: 2011

Type of publication: článek ve sborníku

Name of source: 33. Mezinárodní český a slovenský kalorimetrický seminář

Publisher name: Univerzita Pardubice

Place: Pardubice

Page from-to: 161-164

Titles:

Language	Name	Abstract	Keywords
cze	Vybrané vlastnosti skel systému ústavy PbO-WO3-P2O5	Byly studovány dvě řady skel (100-x)[(0.5PbO•0.5P2O5)]•xWO3 (x = 0, 10, 20, 30, 40, 50, 60) a 50PbO•(50-x)P2O5•xWO3 (x = 0, 10, 20, 30). Pomocí DTA byly stanoveny teplota skelného přechodu (Tg), teplota krystalizace (Tc) a teplota tání (Tm). Termodilatometricky byla stanovena teplota měknutí (Td) a teplota Tg. V obou studovaných řadách přídavek WO3 zvyšuje pevnost vazeb a vede k zvýšení sklotvornosti.	fosfátová skla; molární objem; skelná transformace; DTA
eng	Some properties of PbO-WO3-P2O5 glasses	Two compositional series of phosphate glasses were synthetized: (100-x)[(0.5PbO•0.5P2O5)]•xWO3 (x = 0, 10, 20, 30, 40, 50, 60), and 50PbO•(50-x)P2O5•xWO3 (x = 0, 10, 20, 30). The glass transition temperature (Tg), crystallization temperature (Tc), and melting temperature (Tm) were measured by DTA method. By thermodilatometry the softening temperature (Td) and the glass transition temperature were determined. Molar volume was calculated from experimentally measured glass density. In both compositional series it was proved that the WO3 addition strengthens the glass network structure and increases the glassforming ability.	phosphate glasses; molar volume; glass transition; DTA

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