A percolation dynamic approach to the sol-gel transition
A percolation dynamic approach to the sol-gel transition
复制标题
溶胶-凝胶转变的渗滤动态方法
DOI：
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发表时间：
1998
期刊：
影响因子：
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通讯作者：
A. Coniglio
中科院分区：
文献类型：
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作者：
E. Gado;L. Arcangelis;A. Coniglio
在渗流模型中引入键涨落动力学，研究了Sol-Gel转变过程，考察了Sol-Gel的静态和动态性质。在正方形晶格上的计算机模拟表明，其静态性质符合随机渗流模型，自扩散系数在渗流阈值处为零。根据自扩散系数，确定了溶胶-凝胶转变过程中粘度的临界行为，给出了一个指数。
The sol-gel transition is studied introducing the bond fluctuation dynamics within the percolation model in order to investigate both static and dynamic properties. Computer simulations on a square lattice have shown that the static properties agree with the random percolation model and the self-diffusion coefficients vanish at the percolation threshold. From the self-diffusion coefficients the critical behaviour of the viscosity at the sol-gel transition is determined, giving an exponent .