Magnetostrictive element and method for manufacturing same
US-2020274056-A1 · Aug 27, 2020 · US
Magnetostrictive material and magnetostriction type device using the same
US11309485B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11309485-B2 |
| Application number | US-201916275235-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 13, 2019 |
| Priority date | Mar 26, 2018 |
| Publication date | Apr 19, 2022 |
| Grant date | Apr 19, 2022 |
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Abstract
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A magnetostrictive material includes a FeGaSm alloy that is represented by Expression (1), Fe (100-x-y) Ga x Sm y (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).
First claim
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What is claimed is: 1. A magnetostrictive material comprising: a FeGaSm alloy that is represented by Expression (1), Fe (100-x-y) Ga x Sm y (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. 2. The magnetostrictive material of claim 1 , wherein an orientation difference of <100> orientation of the FeGaSm alloy is in a range of 0° or greater and 10° or less, with respect to a maximum strain direction of the magnetostrictive material. 3. A magnetostriction type device comprising: the magnetostrictive material of claim 2 , wherein a maximum strain direction of the magnetostrictive material is configured to form an inclination angle of 0° or greater and 10° or less, with respect to a predetermined direction of a dimensional change of the magnetostriction type device. 4. A magnetostriction type device comprising: the magnetostrictive material of claim 1 , wherein a maximum strain direction of the magnetostrictive material is configured to form an inclination angle of 0° or greater and 10° or less, with respect to a predetermined direction of a dimensional change of the magnetostriction type device.
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Classifications
- C22C38/002Primary
containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60 · CPC title
containing rare earths, i.e. Sc, Y, Lanthanides · CPC title
Magnetic · CPC title
Details about the magnetic material used · CPC title
- H01L41/20Primary
Electricity · mapped topic
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- What does patent US11309485B2 cover?
- A magnetostrictive material includes a FeGaSm alloy that is represented by Expression (1), Fe (100-x-y) Ga x Sm y (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).
- Who is the assignee on this patent?
- Panasonic Ip Man Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification C22C38/002. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Apr 19 2022 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).