Can aluminum be used in the production of glass and ceramics?

Aluminum can be used in the production of glass and ceramics, although it is not a primary component. In glassmaking, aluminum is sometimes added to reduce the coefficient of expansion, making the glass more resistant to thermal shock. It can also improve the chemical durability and electrical insulation properties of the glass. In ceramics, aluminum compounds are used as opacifiers, colorants, or to enhance the mechanical properties of the final product. However, the use of aluminum in these industries is typically in small quantities and serves specific purposes rather than being a fundamental part of the material composition.