发明名称 |
TRANSFORMATION ENABLED NITRIDE MAGNETS ABSENT RARE EARTHS AND A PROCESS OF MAKING THE SAME |
摘要 |
<p>A process for producing an ordered martensitic iron nitride powder that is suitable for use as a permanent magnetic material is provided. The process includes fabricating an iron alloy powder having a desired composition and uniformity; nitriding the iron alloy powder by contacting the material with a nitrogen source in a fluidized bed reactor to produce a nitride iron powder; transforming the nitride iron powder to a disordered martensitic phase; annealing the disordered martensitic phase to an ordered martensitic phase; and separating the ordered martensitic phase from the iron nitride powder to yield an ordered martensitic iron nitride powder.</p> |
申请公布号 |
WO2013090895(A1) |
申请公布日期 |
2013.06.20 |
申请号 |
WO2012US70086 |
申请日期 |
2012.12.17 |
申请人 |
CASE WESTERN RESERVE UNIVERSITY |
发明人 |
MATTHIESEN, DAVID |
分类号 |
C01B21/06;B22F1/00;C22C29/16 |
主分类号 |
C01B21/06 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|