在毛细管封闭中,硬方形板的T型结构的证据
Roohollah Aliabadi1, Soudabe Nasirimoghadam1, Henricus Herman Wensink2
1Physics Department, Sirjan University of Technology, Sirjan 78137, Iran.
Physical review. E
|June 17, 2023
概括
这项研究探讨了封闭硬方形板中的毛细管内马特相. 青的阶段是同源的,在更宽的毛孔中观察到独特的T型结构.
科学领域:
- 材料科学 材料科学 材料科学
- 物理化学 物理化学
- 统计力学 统计力学
背景情况:
- 了解封闭的异型粒子的相位行为对于设计先进材料至关重要.
- 类似硬板的粒子表现出由形状和封闭效应驱动的复杂的自我组装.
- 狭窄板块中的毛细管现象会影响受限流体的方向顺序和相位过渡.
研究的目的:
- 为了研究在狭窄的板块中封闭的硬方形板的多样化的毛细管阴性相.
- 为了确定受欢迎的相位,并分析相位过渡作为墙壁隔离 (H) 和包装分量的函数.
- 描述特有的T型结构及其对方形板的稳定性.
主要方法:
- 恩萨格的第二个病毒密度功能理论.
- 帕森斯-李理论在受限定向 (Zwanzig) 近似中.
- 模拟硬方形板 (L×D×D) 在一个轴的狭窄板块.
主要成果:
- 预测多个毛细管阴性阶段:单层平面,具有可变层的同源性和T型结构.
- 确定同源性阶段是最受欢迎的.
- 观察同源性状态 (n到n+1层) 和平面/T型结构之间的第一阶过渡.
- 在特定的限制比率下,证明一个回归的同源性-平面性-同源性相序列.
- 在更宽的孔 (H > L+D) 中增强T型结构的稳定性,这对于方形板是独一无二的.
结论:
- 硬方形板在单轴封闭下表现出丰富的相位行为,包括新的毛细血管阴性相位.
- 同源相占主导地位,但过渡到平面和T型结构是显著的.
- 与其他粒子形状相比,T型结构,特别是其双轴形状,显示了方形板的独特稳定性和形成路径.
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