DEVICE FOR MONOCRYSTAL GROWTH OF REFRACTORY OXIDES Russian patent published in 1994 - IPC

FIELD: monocrystal growth. SUBSTANCE: device includes growth camera. Shield system and heater in the form of lower and upper half-turns are located in growth camera. Heater has additional turn in the form of ring at outlet of growth camera. Heater ends are fixed in pick-up point in the form of single member. Pick-up point is coupled with current supplies via flexible bus carried out in the form of sheet packet of refractory metal for instance thin-sheet molybdenum. Basket for initial material is located in heater cavity. Basket is moved in heater cavity on rollers located in shields. Service life of heater is increased for 20%. Monocrystal plates of leucosapphire and yttrium-aluminium garnet were received. EFFECT: enhanced stability and reliability in operation of device. 3 dwg, 1 tbl