Rodica Galasiu; Ioan Galasiu; Niculae Popa; Vasilica Chivu

Abstract

Five recipes of SnO2 - based ceramics masses were prepared. The influence of CeO2 additions on the properties of ceramic masses were studied. It was found that the CeO2 additions increase the electrical resistivity of these ceramic masses, but the electrical resistivity decreases with the CeO2 content. The CeO2 additions have the same influence on the activation energy for conductivity.

Physicochemical Properties of Molten KF-K2NbF7-Nb2O5 System

“…The torsion pendulum method based on the measurement of the logarithmic decrement of damping, caused by the friction in the melt, was used for the viscosity measurement. The measuring device has been described in detail elsewhere (10). The platinum cylinder with the diameter of 15 mm and the height of 20 mm was used as the measuring body.…”