Title :
Effect of Composition and Structure on the Properties of Ti Containing Nd-Fe-B Rapidly Quenched Alloys
Author :
Leonowicz, Marcin K. ; Spyra, Marzena ; Michalski, Bartosz ; Kaszuwara, Waldemar ; Derewnicka, Daniela
Author_Institution :
Fac. of Mater. Sci. & Eng., Warsaw Univ. of Technol., Warsaw, Poland
Abstract :
The effect of neodymium and boron content was studied for the Nd7+xFe79-x+y-zB14-yTiz (x=0, 1, 2; y=0, 1, 2; z=0, 4) system. The alloys were prepared by melt-spinning and suction casting. The highest magnetic properties (JHc=648 kA/m, Jr=972 mT, (BH)max=143 kJ/m3 ) were achieved for the melt-spun Nd8Fe74B14Ti4 alloy. This was caused by Ti addition and was related to the convenient combination of the phase constitution and fine crystallite size in the range of 15-30 nm.
Keywords :
alloying additions; boron alloys; casting; crystallites; ferromagnetic materials; iron alloys; magnetisation; melt spinning; neodymium alloys; titanium alloys; Nd7+xFe79-x+y-zB14-yTiz; alloying addition; boron composition effect; crystallite size; ferromagnetic materials; magnetic properties; magnetisation; melt spinning; neodymium composition effect; rapidly-quenched alloys; structure; suction casting; Coercive force; Magnetic domain walls; Magnetic domains; Magnetic hysteresis; Magnetic properties; Neodymium; Nanocomposite magnets; Nd-Fe-B melt-spun alloys; permanent magnets;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2012.2204233
