Powerful, multifunctional torsional micromuscles activated by phase transition.

نویسندگان

  • Kai Liu
  • Chun Cheng
  • Joonki Suh
  • Robert Tang-Kong
  • Deyi Fu
  • Sangwook Lee
  • Jian Zhou
  • Leon O Chua
  • Junqiao Wu
چکیده

Micro bimorph coils 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.

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عنوان ژورنال:
  • Advanced materials

دوره 26 11  شماره 

صفحات  -

تاریخ انتشار 2014