IIT BHU Varanasi Syllabus

Ceramic Glass and Glass-Ceramics

Ceramic Glass and Glass-Ceramics  

Glassy State; Kinetic and thermodynamic criteria for glass formation, use of Na2O-SiO2 and Na2O-CaO- SiO2 phase

diagrams in glass manufacture, types of glasses and their chemical compositions, Physical properties of glasses,

density, refractive index and dispersion, design of lenses, thermal expansion  and thermal stresses, thermal

endurance of glass, toughening of glasses,  strength and fracture behavior of glass    and its articles, surface tension,

viscosity and its measurement, effect of temperature and composition on the physical properties of glasses.

Absorption  and colours in glasses; role of transition metal ions in glass, sulphur and selenium in glass,

oxidationreduction equilibria  in glass, , effect of temperature, composition and partial pressure  of oxygen on redox equilibria

in glass,  application of redox reactions in glass  industry for coloration, decolorization and refining of glasses.

Oxygen ion activity in glasses.  Chemical durability of glasses; mechanism of reactions of solutions   with glass

surfaces, factors affecting the chemical durability, measurements of chemical durability of glass.

Glass ceramics; Nucleation and crystal growth in glasses, nucleation through micro miscibility, nucleating agents,

properties and applications of glass-ceramics