A tetrad effect in the glass transition of lanthanide-doped sodium disilicate glasses

Scanning calorimetric determination of the glass transition temperatures (T-g) of sodium disilicate doped individually with 25 wt.% of the oxides of La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu reveals the presence of the so-called lanthanide tetrad effect in their glass transition temperatures. This is to the best of our knowledge the first observation of a tetrad effect in the macroscopic properties of a high-temperature silicate phase.

Automated summary

In this study, the glass transition temperatures of sodium disilicate doped with different oxides were determined using scanning calorimetry. The presence of the lanthanide tetrad effect in the macroscopic properties of high-temperature silicate phase was observed for the first time.