Nickel-Titanium (NiTi) based shape memory alloy (SMA) wires are already often used in industrial actuator applications. Their high energy density allows to build light-weight systems with forces using small installation spaces. Combined the biocompatibility of NiTi, a huge field applications can be covered by SMA actuated systems. In like emergency brakes or switch disconnectors, which require ...

A process for fabrication of shape memory alloy MEMS actuators on a elastomeric polymer substrate is described. These actuators are designed for use on innovative soft body robots. Patterned shape memory alloy (nitinol) is sputter deposited on a polyimide mesh structure. The mesh substrate acts as a bias spring to de-twin the shape memory alloy in the martensite phase. Significant portions of t...

A microfabricated normally-closed microvalve consisting of a flat silicon spring, a co-sputtered and patterned TitaniumNickel (TiNi) shape memory alloy (SMA) actuator, and an orifice die, is presented. All three components are batch microfabricated using silicon substrates. This microvalve is designed for an actuation mechanism for a pneumatically controlled, biologically inspired six-legged mi...

This study is aimed at assessing the feasibility of employing an innovative, smart-material-based control effector for inflatable wing. A shape memory alloy (SMA) actuator primarily investigated as a in this work its advantages simple actuation mechanism and high force-to-weight ratio. paper presents design, strategy simulation results SMA used stability augmentation system small-scale prototyp...

The procedure and the external fixator for lengthening long bones was developed by G. A. Ilizarov in the late 1960's. This technique has, despite its proven abilities for leg lengthening and correction of angular deformities, some considerable disadvantages for the patients. Discomfort, infections and restricted weight bearing are some reasons for the development of a completely intramedullary ...