在协同发生期间的合凝中的空间异质动态
Qimeng Wu1, Jesse Buijs1, Sanne de Groot1
1Physical Chemistry and Soft Matter, Wageningen University and Research, Stippeneng 4, 6708 WE, Wageningen, The Netherlands. thomas.kodger@wur.nl.
Soft matter
|July 5, 2023
概括
在合体凝中常见的一个问题是协同形成,它涉及流体排放和材料紧缩. 激光光斑成像揭示了固体与液体粒子凝的不同动态,突出了粒子类型.
科学领域:
- 合体和接口科学科学
- 材料科学是一种材料科学.
- 软物质物理学 软物质物理学
背景情况:
- 合成,即液体从合凝中排出,是关键的机械不稳定性.
- 这种现象对使用体凝的各种应用的性能和寿命产生负面影响.
- 了解协同作用的基本机制对于开发更稳定,更可靠的材料至关重要.
研究的目的:
- 在协同发生过程中研究模型体凝的内部动力学.
- 为了区分由固体和液体颗粒组成的凝中的协同发生机制.
- 阐明构成颗粒及其接口在合凝放松中的作用.
主要方法:
- 使用激光光斑成像 (LSI) 来捕捉合凝的内部动态.
- 开发动态地图以可视化空间和时间放松模式.
- 在具有不同粒子类型 (固体与液体) 的模拟合凝中比较协同反应行为.
主要成果:
- 激光光斑成像在协同过程中成功可视化了不同的空间和时间放松模式.
- 在具有固体和液体颗粒的体凝之间观察到协同作用动态的显著差异.
- 该研究根据构成颗粒的性质确定了不同协同作用的机制.
结论:
- 构成颗粒的类型 (固体或液体) 和它们的界面特性显著影响协同发生期间的体凝放松.
- 在体凝中,不同的协同作用机制是可行的,这取决于它们是否包含固体或液体粒子.
- 这些发现对于通过控制粒子特性和接口来设计和稳定合凝基材料至关重要.
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