ON THE POTENTIALITY OF LOCAL SHAPER TECHNIQUE FOR MULTICOMPONENT OXIDE CRYSTAL-GROWTH

The 'Local Shaper' Technique (LST) differs of Edge-defined Film-fed Gr owth (EFG) by the use of small die that specifies only a part of the p otential crystal cross-section, while the whole one is obtained by mea ns of translation. The applicability of LST for high-temperature multi -component oxide crystals, such as garnet and orthovanadate has been i nvestigated. The operating regimes have been estimated in the comparis on of corresponding EFG modes. Tubular and rod-like crystals of calciu m-niobium-gallium garnet and yttrium vanadate were grown by LST succes sfully. The growth process model has been refined and discussed in the reference to crystal quality. Nevertheless the LST applicability for high-quality growth of multicomponent oxides has been marked as questi onable.