THERMAL UNIT OF THE PLANT FOR GROWING FLUORIDE CRYSTALS WITH CLOSE MELTING TEMPERATURES BY VERTICAL DIRECTIONAL CRYSTALLIZATION Russian patent published in 2022 - IPC C30B35/00 C30B11/00 C30B13/14 C30B15/10 C30B15/14 C30B29/12 

FIELD: crystal growing.

SUBSTANCE: invention relates to equipment used in the technology of growing crystals of fluoride compounds with low volatility of the initial components from the melt by vertical directional crystallization methods. The thermal unit of the plant for growing fluoride crystals with close melting temperatures by vertical directional crystallization methods contains several crucibles 1, 2, 3 with growth cells inside the growth chamber, crucibles 1, 2, 3 inside the growth chamber are arranged axisymmetrically vertically in accordance with the melting temperature of the charge, providing conditions for an increase in the melting temperature of the charge from the lower crucible 1 to the upper 3, and are rigidly fastened together by means of a threaded connection or a tight fit of the collar of the upper crucible into a groove in the lower crucible.

EFFECT: invention provides for the growth of a large concentration series (several dozen samples) in one cycle of depressurization and reloading of the growth plant, which makes it possible to increase the productivity of the growth equipment.

1 cl, 3 dwg, 1 ex