Publication:
Design of microgrippers based on amorphous-crystalline TiNiCu alloy with two-way shape memory

Дата
2020
Авторы
Shelyakov, A.
Sitnikov, N.
Borodako, K.
Koledov, V.
Journal Title
Journal ISSN
Volume Title
Издатель
Научные группы
Организационные подразделения
OrgUnit Logo
Организационная единица
Институт лазерных и плазменных технологий
Стратегическая цель Института ЛаПлаз – стать ведущей научной школой и ядром развития инноваций по лазерным, плазменным, радиационным и ускорительным технологиям, с уникальными образовательными программами, востребованными на российском и мировом рынке образовательных услуг.
Выпуск журнала
Аннотация
Functional layered composites of the shape memory alloys are recently recognized as promising basic active element for microsystem technology and microrobotics. Amorphous-crystalline TiNiCu alloy ribbons at around 40 mu m of thickness with an interface separating the amorphous and crystalline phases into layers were produced by melt spinning technique. It is shown that a decrease in the cooling rate of the melt from 8.9 center dot 10(5) to 4.2 center dot 10(5) K/s leads to an increase in the thickness of the crystalline layer from 2 to 10 mu m. The ratio of the thicknesses of the amorphous d(am) and crystalline d(cr) layers was also varied by an electrochemical polishing method. The composite ribbons have exhibited the two-way shape memory effect (TWSME) of thermal induced bending deformation without additional thermomechanical training. It was established that when the ratio d(cr)/d(am) is changed from 0.06 to 0.35, the minimum bending radius of the ribbon decreases from 37.1 to 6.3 mm, and the maximum reversible strain increases by 0.05% to 0.27%. The minimum time of the shape recovery of the composite ribbons when heated by an electric current pulse was 14 ms, and the force generated by the ribbon with a length of 3 mm in bending reached 1.2 mN. A series of the microgrippers (microtweezers) were fabricated on the basis of the composite ribbons with TWSME. Complete technological process of manipulating graphite filaments with a diameter of 5 to 25 mu m using developed microgrippers was demonstrated.
Описание
Ключевые слова
Цитирование
Design of microgrippers based on amorphous-crystalline TiNiCu alloy with two-way shape memory / Shelyakov, A [et al.] // Journal of Micro-Bio Robotics. - 2020. - 10.1007/s12213-020-00126-3
URI
https://www.doi.org/10.1007/s12213-020-00126-3
 https://www.scopus.com/record/display.uri?eid=2-s2.0-85078465383&origin=resultslist
 http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000509158400001
 https://openrepository.mephi.ru/handle/123456789/20201
Коллекции
Публикации