NUCLEATION AND GROWTH OF COLLOIDAL CRYSTALS
NUCLEATION AND GROWTH OF COLLOIDAL CRYSTALS
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DOI：
10.1103/physrevlett.57.1733
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发表时间：
1986-10-06
影响因子：
8.6
通讯作者：
ACKERSON, BJ
中科院分区：
文献类型：
--
作者：
AASTUEN, DJW;CLARK, NA;ACKERSON, BJ
BCC结晶胶态微球悬浮液被剪切熔融成亚稳液相。再结晶通过在稀位置处的单个微晶的成核和生长而发生。近球形生长的晶体有粗糙的界面与时间无关的界面速度，v.的速度被发现是一致的与正常生长的方程与自由粒子扩散，v 0 <$D 0 <$，其中D 0是独立的非相互作用的球体的斯托克斯扩散常数，和<$是一个长度相当的粒子间距的限制速度。
bcc crystalline colloidal microsphere suspensions are shear melted into the metastable liquid phase. Recrystallization occurs via nucleation and growth of single crystallites at dilute sites. The nearly spherical growing crystals have rough interfaces with a time-independent interface velocity, v. The velocity is found to be consistent with an equation for normal growth with a limiting velocity determined by free-particle diffusion, v 0∼ D 0 ξ, where D 0 is the Stokes diffusion constant of independent noninteracting spheres, and ξ is a length comparable to the particle spacing.