Abstract

The giant magnetostrictive material TERFENOL-D offers the highest strain of any magnetostrictive material at room temperature using practical drive fields. The increasing use of TERFENOL-D in a wide variety of production devices and systems has driven the development of new, advanced manufacturing techniques in the material's production to provide greater levels of strain performance, repeatability, rod size and production capacity. As more applications for this smart material are found, the demand for reliable design data to enable an applications engineer to take advantage of TERFENOL-D's superior properties has also grown considerably. Recent developments in production techniques have made great strides to fulfil the needs in both areas. Advances in static strain performance of TERFENOL-D, performance repeatability and the availability of transducer element size and shape are discussed.

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