Water in glass has disproportionally large influence on glass properties. For example, a small quantity of impurity water in glass can greatly reduce viscosity, mechanical strength and degrade chemical durability of glasses. It can also greatly affect optical transparency and ionic transport characteristic of glasses. Water in the environment can also affect the glass properties, e.g. chemical corrosion and mechanical fatigue. Water can enter into glasses through diffusion during glass melting, usage and heat-treatment. It is, therefore, important to understand process and mechanism of water-glass interaction. In this symposium, a variety of topics related to water-glass interaction will be discussed.
Minoru Tomozawa, Rensselaer Polytechnic Institute, USA