Powerful, Multifunctional Torsional Micromuscles Activated by Phase Transition. (19th December 2013)

• Record Type: Journal Article
• Authors: Liu, Kai; Cheng, Chun; Suh, Joonki; Tang‐Kong, Robert; Fu, Deyi; Lee, Sangwook; Zhou, Jian; Chua, Leon O.; Wu, Junqiao
• Is Part Of: Advanced materials. Volume 26:Number 11(2014)
• Page Start: 1746
• Page End: 1750
• Publication Date: 2013-12-19
• Subjects: Materials -- Periodicals; Chemical vapor deposition -- Periodicals; 620.11
• DOI: 10.1002/adma.201304064
• Languages: English
• ISSNs: 0935-9648

Abstract

<abstract abstract-type="graphical" xml:lang="en" id="adma201304064-abs-0001"> <title> <x xml:space="preserve">Abstract</x> </title> <p> <bold>Micro bimorph coils</bold> driven by a metalinsulator phase transition in VO₂ function as powerful torsional muscles. Reversible torsional motion over one million cycles without degradation is demonstrated, with a superior rotational speed up to ca. 200 000 rpm, an amplitude of 500° per mm length, and a power density up to ca. 39 kW kg⁻¹. <boxed-text content-type="graphic" position="anchor" orientation="portrait"><graphic position="anchor" mimetype="image" xlink:href="ark:/27927/pgg4sr6pnzt" orientation="portrait" xlink:type="simple" xmlns:xlink="http://www.w3.org/1999/xlink" /></boxed-text></p> </abstract>