Functional composite material using shape memory alloy and production method therefor
AssigneeNational Institute of Advanced Industrial Science and Technology
InventorsYa Xu, Kazuhiro Otsuka, Nobuyuki Toyama, Byungkoog Jang, Teruo Kishi
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Abstract
A functional composite material characterized by being molded by solidifying by a resin base material a martensite-phase shape memory alloy wire produced by cold drawing a shape memory alloy which changes between an austenite phase and a martensite phase via a phase transformation temperature. The material enables a smooth motion memorized in the shape memory alloy.
Claims11
A functional composite material characterized in that shape memory alloy wires in a martensite phase surrounded by a resin matrix are molded and in that said shape memory alloy wires are prepared by subjecting a shape memory alloy, assumable a martensite phase or an austenite phase through phase transformation temperatures, to plastic deformation by a cold drawing work and has a reverse transformation starting temperature of 130° C. or higher.
A method of preparing a functional composite material, characterized in that shape memory alloy wires which have been subjected to a cold drawing work are embedded in a resin matrix and molded at a molding temperature lower than the reverse phase transformation temperature.
Dependencies are inferred from the claim text.