Publication detail

Termomechanické vlastnosti skiel systému PbO-WO3-P2O5

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

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: 165-168

Titles:

Language	Name	Abstract	Keywords
cze	Termomechanické vlastnosti skel systému PbO-WO3-P2O5	Pomocí termomechanické analýzy byla stanovena teplota skelné transformace,lineární koeficient teplotní roztažnosti a nízkoteplotní viskozita skel systému PbO-WO3-P2O5.	fosforečnanová skla; struktura; viskozita; teplotní roztažnost; skelný přechod
eng	Thermomechanical properties of PbO-WO3-P2O5 glasses	Viscosity, thermal expansion of glass and metastable melt, and glass transition tempe¬rature were measured by thermomechanical analysis for selected glasses from the PbO – WO3 – P2O5 system. Viscosity temperature dependence was alternatively des¬cribed by Andrade (AND) and Vogel Fulcher Tammann (VFT) viscosity equation. Temperature independent viscous flow activation energy was calculated from AND equation, while the temperature dependent value was obtained from VFT equation. Obtained results are discussed in connection with the structure composition dependence of studied glasses.	phosphate glasses; structure; viscosity; thermal expansion; glass transition

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