CoresPaper
Kyanite in printed silica cores – expansion on decomposition offsets shrinkage
Tianjin University and BIAM: with 15% kyanite and sintering at 1225 °C, the printed core's sintering shrinkage fell to 3.06% and its sag at 1540 °C to 0.82 mm.
Topics
Ceramic cores
Core compositions, sintering and shrinkage, high-temperature sag, leaching, printed cores.
CoresPatent
A water-soluble alumina core for single-crystal blades
A Jiangsu University patent: fused alumina with quartz and MgO on a sodium phosphate and sodium aluminate binder, claimed to dissolve in caustic or hot water in 2–4 hours.