指数
各向异性
原子堆积因子
饱和(图论)
材料科学
纵横比(航空)
吸附
幂律
球形填料
功能(生物学)
随机变量
统计物理学
数学
物理
组合数学
光学
化学
统计
核磁共振
复合材料
物理化学
生物
哲学
进化生物学
语言学
作者
Luca Petrone,Michał Cieśla
出处
期刊:Physical review
日期:2021-09-27
卷期号:104 (3)
被引量:3
标识
DOI:10.1103/physreve.104.034903
摘要
We studied random sequential adsorption (RSA) of parallel rectangles with random aspect ratio but fixed area using a newly developed algorithm that allows to generate strictly saturated packing of this kind. We determined saturated packing fraction for several different distributions of a random variable used for selecting side length ratio of deposited rectangles. It was also shown that the anisotropy of deposited rectangles changes during packing generation. Additionally, we examined the kinetics of packing growth, which near saturation obeys the power law with the exponent 1/d≈1/3, typical for the RSA of unoriented anisotropic shapes on a two-dimensional surface. Kinetics in the low coverage limit is determined using the concept of the available surface function. The microstructural properties of obtained random packings are evaluated in terms of two-point density correlation function.
科研通智能强力驱动
Strongly Powered by AbleSci AI