crystallizing nucleus meaning in English
结晶核
Examples
- When ph value < 0 . 5 , faster deposition rate , faster growth rate of crystallizing nucleus , which causes bigger crystalline granularity and bad surface quality of the deposits such as crassitude or darkling
Ph 0 . 5时,沉积速度过快,晶核成长速度快,晶粒粒度较大,镀层表面粗糙、发黑,表面质量差。 - Higher bath temperature and more deposition time , faster deposition rate , faster growth rate of crystallizing nucleus , which causes bigger crystalline granularity ; ph value and bath temperature are also key factors affecting the size of crystalline granulatrity
镀液温度越高、时间越长,沉积速度越快,晶核成长的速度就越快,沉积晶粒的粒度也越大。镀液ph值和sn ~ ( 2 + )离子浓度也是影响晶粒粒度大小的关键因素。 - When sn2 + concentration in the bath is lower , sn2 + activity is not enough causes slow deposition rate and slow growth rate of crystallizing nucleus , so crystalline granularity deposited is smaller ; when sn2 + concentration in the bath is higher , the dispersive ability of the bath decreases and the surface quality of the deposits sets worse
镀液中sn ~ ( 2 + )浓度较低时,离子活度不够,沉积速度慢,晶核成长速度慢,使沉积的晶粒粒度较小; sn ~ ( 2 + )浓度过高,镀液分散能力降低,使镀层的表面质量下降。