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M. DUMITRU1, N. CIMPOEŞU1,* , G. ZEGAN2,* , V. MANOLE1, D. ANISTOROAEI2
- Materials Science and Engineering Faculty, Technical University “Gh. Asachi” Iasi, Str. Prof. dr. doc. D. Mangeron no. 41, Iaşi, 700050, Romania
- "Grigore T. Popa" University of Medicine and Pharmacy Iasi, Faculty of Dental Medicine, Romania
Smart materials like Shape Memory or Superelastic Alloys present some advantages in their applications as active elements for medical o orthotics. In this article is proposed a finger type driving system based on active elements like shape memory and superelastic alloys. The active element (SMA, stoichiometric NiTi) can be introduced in textile material with role of fixation and experimented for different bone conformations. The superelastic element (CuMnAl shape memory alloy) is used as recovery element during the cooling of the SMA wire. An experimental set-up was used in order to heat/cool the active element for behavior analyze of SMA element in time. The heating of the intelligent element was fulfilled through Joule effect or by hot air to analyze the activation and cooling periods. These elements are electrically activated with an optoelectronic system. The recovery stage of the system is sustained by a superelastic element made of CuMnAl obtained through classical induction melting..
NiTi, Shape memory, Orthosis.
Submitted at: June 26, 2019
Accepted at: Oct. 9, 2019
M. DUMITRU, N. CIMPOEŞU, G. ZEGAN, V. MANOLE, D. ANISTOROAEI, Behavior of NiTi-SMA and CuMnAl –SE smart system with optoelectronic command, Journal of Optoelectronics and Advanced Materials Vol. 21, Iss. 9-10, pp. 598-604 (2019)
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