作者：

A.V. Shelyakov^a*, N.N. Sitnikov^a, V.V. Koledov^b, D.S. Kuchin^b, A.I. Irzhak^c & N.Yu. Tabachkova^c

作者单位：

a Department of Solid State Physics and Nanosystems , National Research Nuclear University “MEPhI” , Kashirskoe shosse 31,115409, Moscow, Russian Federation

b Department of Physics of Magnetic Phenomena , Kotelnikov Institute of Radio-Engineering and Electronics of Russian Academy of Sciences , Mohovaya st. 11/7, 125009, Moscow, Russian

Federation

c Department of Material Science of Semiconductors and Dielectrics , National University of Science and Technology“MISiS”, Leninsky prospect 4, 119049, Moscow, Russian Federation

关键词：

• melt-spun ribbon, shape memory alloy, composite micromanipulator, microtweezers

摘要：

The development of micromechanical devices (MEMS and NEMS) on the basis of nanostructured shape memory alloys is reported. A Ti₅₀Ni₂₅Cu₂₅ (at. %) alloy fabricated by the melt spinning technique in the form of a ribbon with a thickness around 40 μm and a width about 1.5 mm was chosen as a starting material. Technological parameters were optimized to produce the alloy in an amorphous state. The thickness of the ribbon was reduced to 5–14 μm by means of electrochemical polishing. A nanostructural state of the thin ribbons was obtained via the dynamic crystallization of the amorphous alloy by application of a single electric pulse with duration in the range of 300–900 μs. A microtweezers prototype with a composite cantilever of 0.8 μm thick and 8 μm long was developed and produced on the basis of the obtained nanostructured thin ribbons by means of the focused ion beam technique. Controlled deformation of the micromanipulator was achieved by heating using semiconductor laser radiation in a vacuum chamber of scanning ion-probe microscope.

文章全文下载链接：

http://www.tandfonline.com/doi/full/10.1080/19475411.2011.567305#.U8N0QbJ7LFh

整理源自Taylor & Francis Online