Influence of solid–liquid interface shape on striations during CZ InSb single crystal growth in ultrasonic fields

2012 ◽  
Vol 360 ◽  
pp. 35-37 ◽  
Author(s):  
G.N. Kozhemyakin
Keyword(s):  
Crystal Growth ◽  
Single Crystal ◽  
Single Crystal Growth ◽  
Liquid Interface ◽  
Interface Shape ◽  
Ultrasonic Fields ◽  
Solid Liquid Interface ◽  
Solid Liquid

Thermodynamic Pattern Selection in the Stripes Generated Periodically During the (Zn) – Single Crystal Growth

2013 ◽  
Vol 58 (2) ◽  
pp. 309-313
Author(s):  
W. Wołczynski
Keyword(s):  
Growth Rate ◽  
Crystal Growth ◽  
Single Crystal ◽  
Selection Criterion ◽  
Single Crystal Growth ◽  
Marginal Stability ◽  
Pattern Selection ◽  
Minimum Entropy ◽  
Solid Liquid Interface ◽  
Solid Liquid

The (Zn) - hexagonal single crystal growth was performed by the Bridgman system. Some eutectic stripes were generated periodically in the single crystal. The stripes consisted of the strengthening inter-metallic compound, Zn16Ti and (Zn) - solid solution. Two morphology transitions were recorded. At the first threshold growth rate, L-shape irregular rods transformed into regular lamellar structure. The transition was accompanied by the irregular into regular morphology alteration. The regular lamella into regular rods transition occurred at the second threshold growth rate. The new, proposed thermodynamic pattern selection criterion (PSC) of the lower minimum entropy production was applied to describe the structural transitions. The solid/liquid interface perturbation of the (Zn) - phase was referred to the marginal stability.

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