Title :
Magnetic properties of hot-rolled (Pr1-xNdx)-Fe-B magnets
Author :
Ohki, Tsuguaki ; Yuri, Tsukasa
Author_Institution :
Kobe Steel, Ltd., Hyogo, Japan
fDate :
11/1/1993 12:00:00 AM
Abstract :
Re-Fe-B alloy ingots can be hot-rolled into aligned magnets. A study of the magnetic alignment and magnetic properties of the (Pr1-xNdx)-Fe-B magnets using an X-ray diffraction method, a magnetic domain observation and the measurement of magnetization is described. The grain size of the ingot increases with an increase of the Nd content (x). As x increases, it becomes more difficult for the magnetic alignment to turn upward toward the surface during hot rolling. Although the coercive force of the magnets monotonically decreases with x, the energy products of 38 MGOe remain unchanged up to 60% of Nd. The alignment of easy magnetization axes and the magnetic properties are affected by the grain size
Keywords :
X-ray diffraction examination of materials; boron alloys; coercive force; ferromagnetic properties of substances; grain size; hot rolling; iron alloys; magnetic anisotropy; magnetic domains; magnetisation; neodymium alloys; permanent magnets; praseodymium alloys; (Pr1-xNdx)-Fe-B; Re-Fe-B alloy ingots; X-ray diffraction method; aligned magnets; coercive force; easy magnetization axes; energy products; grain size; hot-rolled (Pr1-xNdx)-Fe-B magnets; magnetic alignment; magnetic domain observation; magnetic properties; magnetization; Anisotropic magnetoresistance; Human computer interaction; Magnetic anisotropy; Magnetic domains; Magnetic materials; Magnetic properties; Magnetization; Magnets; Neodymium; Perpendicular magnetic anisotropy;
Journal_Title :
Magnetics, IEEE Transactions on
