Samarium-iron-nitrogen alloy powder and method for producing same
US11453057B2 · kind B2 · utility
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7Claims
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Key dates
| Filing date | Feb 28, 2017 |
| Grant date | Sep 27, 2022 |
| Priority date | — |
| Expiry date | Aug 3, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F1/0596
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A samarium-iron-nitrogen alloy powder according to one embodiment of the present invention is characterized in that a value obtained by dividing the hydrogen content of the samarium-iron-nitrogen alloy powder by the BET specific surface area of the samarium-iron-nitrogen alloy powder is less than or equal to 400 ppm/(m2/g), and a value obtained by dividing the oxygen content of the samarium-iron-nitrogen alloy powder by the BET specific surface area of the samarium-iron-nitrogen alloy powder is less than or equal to 11,000 ppm/(m2/g).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.