Prestress imposing treatment of magnetostrictive material
US6139648A · kind A · utility
10Cited by
3References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 19, 1999 |
| Grant date | Oct 31, 2000 |
| Priority date | — |
| Expiry date | Feb 19, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10N35/01
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Magnetostrictive material such as Terfenol-D undergoes annealing treatment y heating for a limited period of time to an elevated temperature below the melting point, followed by cooling to a preferred magnetic state in which a compressive stress generated and applied during treatment is retained in the treated material as a built-in prestress.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.