| 摘要 |
<p>Disclosed is a magnetic alloy material having a magnetic retention parameter, Q, greater than 1. The alloy material exhibits improved magnetic properties. The alloy comprises iron, boron, a modifier, and a rare earth metal chosen from the group consisting of neodymium, praseodymium, and mixtures thereof, optionally with aluminum. The magnetic alloy maerial has a Rietveld refined x-ray diffraction pattern characterized by a major fraction of a tetragonal RE-Fe-BV type phase, and a detectable fraction of a second phase. The second phase may be an alpha iron phase. The stoichiometry of the alloy is represented by: Fea(Nd, Pr)bBc(Si, Al)d, when the modifier is Si, Al, or mixtures thereof, where a is from 75 to 80, b is from 10 to 14, c is from 5 to 10, and d is from 0.5 to 5.0. Also disclosed are method of synthesizing the magnetic alloy material, compacted bodies of the magnetic alloy material, and methods of forming the compacted bodies.</p> |
