In-situ observation of crystal detachment behavior in NH4Cl-H2O system from chilling metal surface with vibration
作者： Ying ZHANG , Meng WANG , Li-cheng DU , Xin LIN , Wei-dong HUANG
DOI: 10.1016/S1003-6326(10)60588-2
关键词:
摘要: Abstract The crystal detachment behaviors from a chilling solid surface with vibration were investigated using transparent NH 4 Cl-70%H 2 O alloy. nucleation experiments of alloy performed on generator various frequency 20 to 1 000 Hz and acceleration 10 100 m/s . results indicate that the detach rate increases grains are refined increasing under certain frequency. It is interesting note that, when 50 Hz, , sharply grain refinement effect strengthened. A special phenomenon can be observed, up critical value. power-based definition was introduced in order describe relationship between parameters imposed power system. found criterion exists for current
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