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- Title
Giant reversible deformations in a shape-memory composite material.
- Authors
Irzhak, A. V.; Kalashnikov, V. S.; Koledov, V. V.; Kuchin, D. S.; Lebedev, G. A.; Lega, P. V.; Pikhtin, N. A.; Tarasov, I. S.; Shavrov, V. G.; Shelyakov, A. V.
- 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 Ti50Ni25Cu25 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 × 3 × 1 μm 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.
- Subjects
SHAPE memory alloys; COMPOSITE materials; SEMICONDUCTOR lasers; SHAPE memory effect; FUNCTIONALLY gradient materials
- Publication
Technical Physics Letters, 2010, Vol 36, Issue 4, p329
- ISSN
1063-7850
- Publication type
Article
- DOI
10.1134/S1063785010040127