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首页> 外文期刊>Physica, A. Statistical mechanics and its applications >CRYSTALLIZATION IN SUSPENSIONS OF HARD SPHERES AND TURBIDITY
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CRYSTALLIZATION IN SUSPENSIONS OF HARD SPHERES AND TURBIDITY

机译：硬球和湍流悬浮中的结晶

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摘要

The dynamics of crystallization have been investigated for suspensions of hard spheres by small angle light scattering, direct imaging, and Bragg scattering. This work reports preliminary but complementary measurements of turbidity during crystallization. The change in turbidity correlates with small angle light scattering for the smaller volume fractions studied, where the signal is strong. However, an initial exponential time dependence in turbidity is observed, which has a decay time independent of the sample volume fraction. This signal dominates at larger volume fractions where small angle light scattering measurements are weak and Bragg studies are more easily performed. We identify this initial transient decay with a laser-induced heating of the sample. [References: 19]
机译：已经通过小角度光散射，直接成像和布拉格散射研究了硬球悬浮液的结晶动力学。这项工作报告了结晶过程中浊度的初步但互补的测量。对于信号强度较强的较小体积分数，浊度的变化与小角度光散射有关。但是，观察到浊度的初始指数时间依赖性，其衰减时间与样品体积分数无关。该信号在较大的体积分数中占主导地位，在该体积分数中，小角度光散射测量较弱，更容易进行布拉格研究。我们通过激光诱导的样品加热识别出这种初始瞬态衰减。 [参考：19]

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