In this paper (the third part of an investigation on viscosity-temperature relations in the lead crystal system containing 24-30% PbO) the dependence of these oxides on transformation temperature (Tg) and dilatometric softening point (Mg) has been determined. Annealed slabs of 40-50mm length from the glasses of the previous investigations were used for dilatrometric measurements using a Netsch dilatometer and Tg and Mg were determined from the dilatometric curve.
Origin
Unknown
Journal Title
Glastek Tidskrift 34 1 1979 9-10
Sector
Domestic glass
Class
D 268