Glass-ceramics are polycrystalline substances with fine microstructure that are created when a glass is carefully crystallized (devitrified). For the production of glass-ceramics, a variety of silicate-based wastes, including coal combustion ash, slag from steel production, fly ash and filter dusts from waste incinerators, mud from metal hydrometallurgy, various types of sludge, as well as glass… Continue reading What is Glass Ceramics?