快速可逆的有机晶体开关用于将热转化为机械能量
Madushani Dharmarwardana, Srimanta Pakhira1, Raymond P Welch
1Discipline of Physics, Discipline of Metallurgy Engineering and Materials Science (MEMS) & Centre for Advanced Electronics (CAE), Indian Institute of Technology Indore (IIT Indore), Simrol, Khandwa Road, Indore 453552, Madhya Pradesh (M.P.), India.
Journal of the American Chemical Society
|April 6, 2021
概括
研究人员从有机晶体中开发出可逆的热态执行器. 这种材料在温度变化时呈现出快速,可重复的收缩和膨胀,使新的热保险丝应用成为可能.
科学领域:
- 材料科学
- 晶体学
- 物理化学
背景情况:
- 有机晶体中固态热弹性行为不常见.
- 现有的可逆系统通常是缓慢的,周期有限,或迅速降解.
研究的目的:
- 开发一个完全可逆的热形执行器,增强稳定性和快速执行.
- 展示实时热切换应用的新材料.
主要方法:
- 研究有机晶体的固态热弹性行为.
- 在热循环下对晶体相位过渡和执行性能的描述.
主要成果:
- 一个稳定,可逆的热态执行器被制造出来,可运行超过200个周期.
- 在加热 (> 45 °C) 时,晶体瞬间缩小到 90% 的长度,在冷却 (< 35 °C) 时扩大.
- 阶段过渡是快速的,歇斯底里最小,使得快速循环.
结论:
- 开发的有机晶体执行器为热态应用提供了强大而高效的解决方案.
- 这种材料的特性适用于快速,实时的热保险丝.
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