SmFe-based magnetostrictive material
US5985050A · kind A · utility
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13Claims
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Key dates
| Filing date | Sep 30, 1997 |
| Grant date | Nov 16, 1999 |
| Priority date | — |
| Expiry date | Sep 30, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F1/0306
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A SmFe-based magnetostrictive material having an excellent magnetostrictive performance and an excellent mechanical strength provided by achieving a division of crystal grains. The SmFe-based magnetostrictive material includes boron (B) as an additive component, which contributes to the fine division of crystal grains. The content of boron (B) is set in a range of B.ltoreq.0.01% by weight.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.