Baking effect for NdFeB magnets against demagnetization induced by high-energy electrons

摘要

The effect of thermal stabilization (pre-baking at 142℃) on the sensitivity of neodymium-iron-boron (Nd_2Fe_(14)B) magnets to irradiation was studied. Thermally stabilized magnets showed higher resistance to irradiation with 2.0GeV electrons: their demagnetization curves decrease linearly with respect to the number of electrons, and with a demagnetization rate remarkably smaller than that of the unbaked magnets.