Researchers at the University of California, Davis have developed a tin-based tooling that exhibits high thermal shock resistance and has low chemical reactivity. This tooling can be produced using standard slip casting techniques by incorporating newly-developed additives.
Platinum toolings are used currently for most glass melting applications. These toolings need to be reused in order to be cost-effective. The toolings must also withstand extreme thermal shocks and not dissolve when molten glass is inside of them – so as to maintain the desired chemical composition of the final glass product. After use, the toolings are frequently cleaned with hydrofluoric acid. Current tooling production processes thus use very expensive materials: a cheaper alternative for toolings is desirable.
Researchers at the University of California, Davis have developed such an alternative – a tin-based, ceramic tooling that has high thermal shock resistance and low chemical reactivity. The tolling can be produced using standard slip casting techniques. The resulting tooling maintains industry standards for both thermal characteristics and resistance to chemical attack – all at a much lower cost than current alternatives.