DEVICE FOR PRODUCTION OF MONOCRYSTAL (VERSIONS), METHOD OF PRODUCTION OF MONOCRYSTAL (VERSIONS) AND MONOCRYSTAL (VERSIONS) Russian patent published in 2003 - IPC

FIELD: production of monocrystals. SUBSTANCE: proposed device employs downward drawing method; melt 5m of raw material is continuously charged into crucible 2 for growing crystal 18 by charging powder-like raw material 5p on plate 3 located before melting zone inside electric furnace 10 by means of charging unit 20; powder-like raw material 5p is molten on plate 3 located before melting zone forming melt 5m which flows to crucible 2. Provision is made for delivery of dehumidified air inside bin 6 containing powder-like raw material to exclude moistening of powder 5p. Transportation pipe 9 for raw material 5m is cooled to exclude its filling with melt of powder-like raw material 5p. EFFECT: stable chemical composition, large diameter and length of crystal; low cost. 20 cl, 9 dwg, 2 ex