Theoretical and Experimental Study on the Model of Crystal Detachment in Vibrating Condition
A model of crystal detachment from a chilling solid surface with vibration has been established according to the mechanical analysis of the primary phase of a growing crystal grain. The model indicates that the main factors determining whether crystal can be detached are vibration frequency and amplitude as well as cooling temperature of the chilling solid surface. The effects of the above three factors on the actual crystal detachment behaviors were studied experimentally using a transparent NH4Cl-70%wtH2O solution. The experimental results are in good accordance with the theoretical analysis.