Rapid consolidation method for preparing bulk metastable iron-rich materials
US10062482B2 · kind B2 · utility
2Cited by
2References
7Claims
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Key dates
| Filing date | Aug 25, 2015 |
| Grant date | Aug 28, 2018 |
| Priority date | — |
| Expiry date | Sep 26, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F41/0266
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Interstitially modified compounds of rare earth element-containing, iron-rich compounds may be synthesized with a ThMn12 tetragonal crystal structure such that the compounds have useful permanent magnet properties. It is difficult to consolidate particles of the compounds into a bulk shape without altering the composition and magnetic properties of the metastable material. A combination of thermal analysis and crystal structure analysis of each compound may be used to establish heating and consolidation parameters for sintering of the particles into useful magnet shapes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.