通过在热工程模板中的模板导向固化,通过高度排序的欧特克学半结构
Sung Bum Kang1,2, Guanglong Huang3, Gaurav Singhal1,2
1Department of Materials Science and Engineering, University of Illinois, Urbana, IL, 61801, USA.
Advanced materials (Deerfield Beach, Fla.)
|January 8, 2024
概括
选择具有低导热性的模板材料是创建高度组织的微结构的关键,在模板导向的eutectics的自组装中. 这种对传热的控制导致可预测和可调的材料特性.
科学领域:
- 材料科学 材料科学 材料科学
- 固化科学 固化科学 固化科学
- 纳米技术纳米技术
背景情况:
- 模板导向的自组装是一种在固化中创建独特的微观结构的方法.
- 模板所施加的扩散约束和热梯度会影响微观结构的形成.
研究的目的:
- 为了证明模板材料选择基于导热性的重要性.
- 阐明热性质和由此产生的微观结构之间的关系.
- 为了突出热传递控制在模板导向自组装中的作用.
主要方法:
- 利用模拟来研究优化材料和模板材料的热特性之间的关系.
- 采用电化学孔状柱,具有较低的导热率作为模板.
- 在不同导热率的柱模板内固化了一个AgCl-KCl的eutectic.
主要成果:
- 具有低导热率 (<0.3 Wm-1 K-1) 的模板产生了高度组织的微观结构 (99%的模式统一性).
- 具有高导热率 (≈100 Wm-1 K-1) 的模板导致结构不那么有组织 (50%的模式统一性).
- 热工程模板产生了具有可调节光学特性和与模拟相匹配的反射度的中介结构.
结论:
- 低导热率模板有利于在优质自组装中实现高度组织的微结构.
- 通过模板材料选择控制热流对于可预测和大面积的模式形成至关重要.
- 这种方法使得能够设计具有可调节光学特性的中体结构.
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