Characterization of giant magnetostrictive composite

Mitsuaki TAKEUCHI; Yasuhiro ASADA; Kazuyoshi ISHIDA; Takeshi HARAKI; Yoshihito MATSUMURA; Hirohisa UCHIDA; Toshiro KUJI

doi:10.2978/jsas.13.427

Mitsuaki TAKEUCHI, Yasuhiro ASADA, Kazuyoshi ISHIDA, Takeshi HARAKI, Yoshihito MATSUMURA, Hirohisa UCHIDA, Toshiro KUJI

著者情報

キーワード: magnetostriction, composite, bonded magnet, TbFe₂, acrylic resin

ジャーナルフリー

2001 年 13 巻 3 号 p. 427-430

DOI https://doi.org/10.2978/jsas.13.427

詳細

抄録

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.

責任著者(Corresponding author)

J-STAGEへの登録はこちら（無料）