Nanostructured Fe–Pd thin films for thermoelastic shape memory alloys—electrochemical preparation and characterization

Electrochemical syntheses of soft and hard magnetic Fe50Pd50-based nanotubes and their magnetic characterization

“…Because of the large difference of 1.4 V [2] in the standard reduction potentials of Fe 2+ and Pd 2+ , different complexing agents have to be used in order to make the co-deposition of both metals possible. As a result, Fe-Pd thin films were successfully deposited from ammonium tartrate- [3], sulfate- [4] and citrate-based [5,6] baths.…”

FePd melt-spun ribbons and nanowires: Fabrication and magneto-structural properties

“…However, bulk thermoelastic SMAs are not suitable for their use in rapid actuation of microsensors or actuators because the response speed of actuators is significantly limited by the heat conduction of the material itself. One possibility for overcoming this disadvantage consists of fabricating nanostructured SMA alloys in the form of thin films [3], or as arrays of self-ordered nanowires embedded into nanoporous anodic alumina membranes (NAAM) [4], where high uniaxial shape anisotropy enables FePd nanowires to overcome thermal fluctuations even in very small sizes. We report on the microstructure, composition and magnetic properties of as-prepared Fe-30%Pd ribbons and nanowires.…”

Development and characterization of shape memory Cu–Zn–Al thin films

“…In the last years, thin films of shape memory alloys (SMA) have been recognized as promising and high performance materials in the field of microelectromechanical systems, sensors and actuators [1][2][3]. For this purpose, SMA thin films have been grown by different techniques like evaporation, sputtering, electrodeposition, etc [1][2][3][4][5]. One of the most important issues is the control of the chemical composition of the alloys, given that small changes in the composition generally induce great shifts in the martensitic transformation temperature (M s ).…”