熱を機械エネルギーに変換するための迅速な可逆性有機結晶スイッチ
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
まとめ
研究者は有機結晶から 逆転可能な熱変形アクチュエータを開発しました この材料は,温度変化に伴い,急速な,繰り返し縮小し,膨張し,新しい熱フィューズのアプリケーションを可能にします.
科学分野:
- 材料科学
- クリスタルグラフィー
- 物理化学
背景:
- 固体熱弾性行動は有機結晶では珍しい.
- 現存する可逆系は ゆっくりと サイクルが限られているか 急速に劣化します
研究 の 目的:
- 安定性と迅速なアクチュエーションを備えた完全に可逆的な熱変形アクチュエータを開発する.
- リアルタイムの熱スイッチングアプリケーションのための新しい材料を実証します.
主な方法:
- 有機結晶における固体熱弾性行為の調査.
- 熱循環下での結晶相移行とアクチュエーション特性の特徴
主要な成果:
- 200回以上のサイクルで機能する,安定した,可逆の熱変形アクチュエータが作成されました.
- 結晶は加熱 (>45 °C) 時に90%の長さまで縮小し,冷却 (<35 °C) 時に膨張する.
- 段階移行はヒステレスが最小で,急速なサイクルを可能にします.
結論:
- 開発された有機結晶アクチュエータは,熱変形アプリケーションのための堅牢で効率的なソリューションを提供します.
- 材料の特性により リアルタイムで熱電源を稼働させることができます
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