Materials and Actuator Solutions for Advanced Magnetic Shape Memory Devices (Review)

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Conference Proceeding

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The magnetic shape memory technology may replace electromagnetic solutions in applications requiring fast frequency response, long lifetime, and high energy efficiency. In this review we present the latest developments concerning new materials and manufacturing technologies, which lead to improved magneto-mechanical properties combined with a cost efficient and repeatable production route. In particular advances in the crystal growth process and subsequent treatments such as cutting technologies are described. New actuator concepts use the multistability feature of the MSM material to reduce the energy consumption during an actuation cycle. Fast-frequency response actuators have been proposed for switching and sorting applications. In the field of microdevices and thin films, activities include the development of micropumps for biomedical applications and the deployment of first prototype devices. This review also considers micro-positioners and energy harvesters, which are promising applications of MSM driven devices.

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