[G] Hard Magnetic Materials

[279] Significant enhancement of coercivity of hot-deformed magnets by two-step diffusion process
using a minimal amount of Dy

*Xin Tang¹, M. Korent¹, H. Sepehri-Amin¹, K. Hioki², T. Ohkubo¹, K. Hono¹ (1. Elements Strategy Initiative Center for Magnetic Materials, National Institute for Materials Science, Tsukuba 305-0047, Japan、2. Daido Corporate Research & Development Center, Daido Steel Co., Ltd., Nagoya 457-8545, Japan)

Keywords:permanent magnet、hot-deformed magnets、Nd-Fe-B、coercivity、remanence

This work demonstrated 2.5 T class coercivity can be achieved by the 2step diffusion process using a small amount of Dy without alloying Dy in the starting material.