An Fim-Atom Probe and Tem Study of Alnico Permanent Magnetic Material

Role of the Applied Magnetic Field on the Microstructural Evolution in Alnico 8 Alloys

“…Alnico was discovered in 1932 [2] and optimized before 1970s mostly by empirical studies without the help of today's advanced characterization and simulation tools. [3][4][5][6][7][8][9][10] The key to the optimization of magnetic properties is control of the aging process of the Fe-Co ferromagnetic (a 1 ) phase and a non-magnetic NiAl-based (a 2 ) phase. The highest energy product alnico alloys are 5-7 and 9, which are both grain aligned and heat-treated with an applied magnetic field.…”