| Abstract: | Two experimental devices have been used with the aim to optimize the synthesis of single crystals by means of the mixed gel-solution technique. These consist of a gel source-reservoir saturated at T0 and a vessel of aqueous solution saturated at Tf. T0 > Tf. In such devices, the evlution of the supersaturation in the vessel of aqeous solutions allows that the grwoth process to be controlled by such a source-reservoir and the crystal itself. Average growth rates of 3 and 4 mm/day have been found for KDP crystals. |
