Effects of Heat Treatment and on Magnetic Properties of NdFeB Based Permanent Magnet Alloys
Muhammed Fatih Kılıçaslan, Yasin Yılmaz, Bekir Akgül
Abstract
In this study, the effect of flash annealing heat treatment applied at 680 oC for 5 minutes on the magnetic properties of NdFeB-based permanent magnet alloys produced by melt spinning method, which is one of the fast solidification methods, was investigated by using a very fast heating and cooling rate of 300 K/s. The obtained results showed that there was a remarkable improvement in the magnetic properties of the alloys with the applied heat treatment. Mainly, the hard magnetic properties were optimized by enhancing magnetic remanence from 21.64 emu/g to 55.76 emu/g, magnetic coercivity from 1184.15 Oe to 9146.30 Oe, and maximum energy product from 4.06 kJ/m3 to 62.02 kJ/m3 respectively.
Topics & Concepts
Neodymium magnetCoercivityRemanenceMaterials scienceMagnetMelt spinningAnnealing (glass)SpinningMetallurgyNuclear magnetic resonanceCondensed matter physicsMagnetizationComposite materialMagnetic fieldMechanical engineeringPhysicsEngineeringQuantum mechanicsMagnetic Properties of AlloysMagnetic properties of thin filmsMagnetic Properties and Applications