Upconversion fluorescence of tellurite glasses doped with rare earths

Ternary tellurite glasses were prepared by a conventional quenching method in the system TeO//2-LiO//0//.//5-YO//1//.//5. IR spectra reveal that the glasses contain the following polyhedra: deformed TeO//6 groups, TeO//4-trigonal bipyramids, TeO//3-trigonal pyramids, or combinations of these polyhedra. The highly addition of… Read moreUpconversion fluorescence of tellurite glasses doped with rare earths

in candidate glasses for nuclear waste immobilisation. Part 2. A summary for binary alkali silicates and borates

A thermogravimetric technique was employed to measure CO//2 solubilities in binary R//2O plus SiO//2 and R//2O plus B//2O//3 melts (R equals Li, Na, K, Rb, Cs). CO//2 solubilities can be interpreted by taking account of the free energy changes for… Read morein candidate glasses for nuclear waste immobilisation. Part 2. A summary for binary alkali silicates and borates