状结构的生长和分散的结前线在盐水滴的影响结期间
Junhao Zhu1, Zhongyi Wang1, Zheng Dai1
1College of Power and Energy Engineering, Harbin Engineering University, Harbin 150000, China.
Journal of colloid and interface science
|June 22, 2025
概括
盐水结与纯水不同,原因是离子被排除在外,形成独特的结构,影响热传递. 盐度影响结深度和冰的硬度,这对于材料科学和环境应用至关重要.
科学领域:
- 材料科学 材料科学 材料科学
- 物理化学 物理化学
- 环境科学 环境科学
背景情况:
- 盐水的分离结在各种领域至关重要,包括金,材料加工,环境系统和生物材料.
- 盐水结期间的离子排斥改变了树突的生长,与纯水相比.
- 滴滴超冷却会影响树岩的形成和结晶过程中的热传递.
研究的目的:
- 研究盐水的结机制,重点关注离子排斥和超冷却对形态和热传递的影响.
- 开发和验证一种新的热传递模型,用于结盐水,并结合离子排斥效应.
- 量化盐度对结动态和盐水冰的机械性能的影响.
主要方法:
- 在海洋盐度范围内制备的NaCl溶液和使用的疏水微结构表面.
- 在控制温度和湿度下对盐水滴进行冲击结实验.
- 观察了结前线的形态和生长,并使用了格子博尔茨曼法进行热传递计算.
主要成果:
- 在结界面观察到明显的状结构,随着超冷却的增加而演变为树突形状.
- 开发了一个新的热传递模型,考虑离子排斥,通过模拟证明由于状结构的增强导热.
- 量化了盐度在控制结深度和降低盐水冰的机械硬度方面的作用,并注意到后期阶段的模糊接口和尖端消失.
结论:
- 这项研究阐明了盐水独特的结行为,由离子排除和超冷却驱动.
- 一种新的传热模型准确地预测了结动态,适用于盐水和纯水.
- 盐度是影响盐水冰形成,结时间和机械性能的关键因素,对各种应用有影响.
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