A. V. Irzhak, V. S. Kalashnikov, V. V. Koledov, D. S. Kuchin, G. A. Lebedev, P. V. Lega, N. A. Pikhtin, I. S. Tarasov, V. G. Shavrov, A. V. Shelyakov, “Giant reversible deformations in a shape-memory composite material”, Pisma v Zhurnal Tekhnicheskoi Fiziki, 2010, Volume 36, Issue 7,Pages <nobr>75

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Giant reversible deformations in a shape-memory composite material

A. V. Irzhak^abcde, V. S. Kalashnikov^abcde, V. V. Koledov^abcde, D. S. Kuchin^abcde, G. A. Lebedev^abcde, P. V. Lega^abcde, N. A. Pikhtin^abcde, I. S. Tarasov^abcde, V. G. Shavrov^abcde, A. V. Shelyakov^abcde

^a National University of Science and Technology «MISIS», Moscow
^b Bauman Moscow State Technical University
^c Kotelnikov Institute of Radioengineering and Electronics of the Russian Academy of Sciences, Moscow
^d Ioffe Institute, St. Petersburg
^e National Engineering Physics Institute "MEPhI", Moscow

Abstract: New scheme of a functional composite material based on a shape memory alloy has been developed and experimentally tested. The proposed scheme ensures a giant reversible bending deformaion using only one-way shape memory. The scheme has been experimentally implemented on models manufactured by galvanic deposition of nickel onto preliminarily pseudoplastically deformed rapidly quenched Ti$_{50}$Ni$_{25}$Cu$_{25}$ alloy ribbons. The proposed scheme is especially promising for applications in micro- and nanomechanics. In particular, prototype nanotweezers have been manufactured on this basis with record small dimensions of 12 $\times$ 3 $\times$ 1 $\mu$m and a 500-nm-thick shape-memory layer, which is capable of manipulating objects with sizes from 10 to 1000 nm. Controlled deformation of nanotweezers was achieved by heating them using semiconductor laser radiation in a vacuum chamber of scanning ion-probe microscope.

Received: 15.11.2009