Abstract
Enthalpies of crystallization of lithium alumino-silicate glasses were determined by solution calorimetry at 298 K in HF/HNO 3 mixtures. The crystallization was accompanied by an irreversible change of the ionic conductivity. The larger crystallization enthalpies of lithium glasses in comparison with sodium glasses could be correlated with the crystal chemistry and the radius of the alkaline cation. Different AgI modifications were observed in AgCl–AgI composites. The solution calorimetric investigation at 298 K in aqueous solutions of Na 2S 2O 3/NH 3 gave data on phase transition enthalpies of AgI. Metastable modifications can be stabilized by partial intermixing, small particle sizes or the influence of interfacial energies and strain.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
