Advanced Technologies of Crystal Growth from Melt Using Vibrational Influence

Oscillatory-Driven Fluid Flow Control during Crystal Growth from the Melt

“…Lyubimov et al [79] demonstrated this correlation by the corresponding diagram for some fixed value of vibration amplitude. Another mechanism leading to similar transformation of the flow pattern is given by Zharikov [81]. Another mechanism leading to similar transformation of the flow pattern is given by Zharikov [81].…”

Problems and recent advances in melt crystal growth technology

“…Different aspects of these actions are discussing in a series of papers and summarized in the recent author's review [70]. One group of actions connected with appearance of macroscopic vortices in the bulk melt strongly influencing the heat and mass transfer in the entire melt column, as well as with appearance of specific surface flows controlled by vibration parameters that gives a unique opportunity to control/ compensate undesirable surface flows caused by both thermocapillary and thermoconcentration Marangoni convections.…”

“…7. By now it was experimentally applied to Czochralski, top-seeded solution growth (TSSG), vertical Bridgman and floating zone methods and realized in growth of both low-melting point and high-melting point materials, in particular, different salts NaNO 3 , Ba(NO 3 ) 2 , AgBr, AgBrCl, complex oxides BaTiO 3 , K(TaNb)O 3 , Y 3 Sc 2 Ga 3 O 12 :Er,Cr, Bi 12 SiO 20 and semiconductors PbTe and CdTe [70]. It was demonstrated the improvement of perfection of grown crystals, radical reducing the dislocation density, etc.…”

“…allow controlling the heat-mass transfer in the melt and improving the quality of grown crystals to a different extent. Among the action of various external fields the oscillatory (vibrational) impact is most closely corresponding to the fundamental nature of crystallization and it is the most efficient way to influence the crystal growth process [70].…”

Thermodynamic features of axial vibrational control technique for crystal growth from the melt

“…Changing the vibrational amplitude and frequency one could control flow configuration and velocity. The 20 technique was called AVC (axial vibrational control) technique and its detail review is presented in [3].…”