Abstract
Tough and high corrosion resistant giant magnetostrictive composite with high cost performance was developed. Acrylic resin powder was mixed with TbFe2 powder sized from 40 to 75μm. The mixture was formed in a mold at 120°C under 4.4×108Pa for 30min.A composite with 28 vol% TbFe2 exhibited 820ppm strain at 15kOe of applied field. The corrosion rate was 5.5×10-2 g·hour-1 when immersing the composite in 1M-HCl. It was found that corrosion resistance increased by about 15 times compared with that of a giant magnetostrictive bulk material.
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