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US 11,309,485 B2Granted
Magnetostrictive material and magnetostriction type device using the same
AssigneePanasonic Intellectual Property Management Co., Ltd.
InventorsTakehiro Tanaka, Kazuki Sakai, Taichi Nakamura, Ryou Kuwabara
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Abstract
A magnetostrictive material includes a FeGaSm alloy that is represented by Expression (1), Fe(100-x-y)GaxSmy (1) (in Expression (1), x and y are respectively a content rate (at. %) of Ga and a content rate (at. %) of Sm, and satisfy that y≤0.35x−4.2, y≤−x+20.1, and y≥−0.1x+2.1).
Claims4
A magnetostrictive material comprising:
- a FeGaSm alloy that is represented by Expression (1),
- Fe(100-x-y)GaxSmy (1)
- wherein, in Expression (1), x and y are respectively a content rate (at. %) of Ga and a content rate (at. %) of Sm, and satisfy 17≤x≤18 and 0.7≤y≤1.4, and
- wherein the magnetostrictive material has a magnetostriction quantity of 480 ppm or greater.
1 more element
Dependencies are inferred from the claim text.