A 1 kW mirror furnace for growth of refractory oxide single crystals by a floating-zone technique

A simple high-temperature zone-fusion apparatus based on an elliptical mirror cavity and a 1 kW halogen lamp in one focus is described. Zone fusion is achieved by passing a ceramic rod through the second focus along the optical axis of the cavity by means of an excentrical sample holder. The apparatus has been used for single-crystal growth of refractory oxides and their solid solutions with melting temperatures up to 2100°C. © 1984.