Quartz Dissolution Into Porcelain Glasses

A model system was set up in the form of a diffusion couple, an experiment in which a silica-deficient glass is placed in contact with a quartz crystal and heated. During heating, the glass tends to dissolve the quartz and should theoretically result in a silica-rich amorphous phase at the glass-quartz boundary. In addition, actual solution rims in an industrial porcelain system were subjected to microstructural examination to determine their compositions.