Phase transformation and magnetic properties of fully dense Sm(Fe0.8Co0.2)11Ti bulk magnets

• DOI: 10.1016/j.scriptamat.2020.10.030
• Publication Date: 2020-10-23T13:19:36Z
• Authors: Hui-Dong Qian; Jung Tae Lim; Jong-Woo Kim; Yang Yang; Kyung Mox Cho; Jihoon Park; Chul-Jin Choi
• Keywords: Hot pressing

High density sintered Sm(Fe0.8Co0.2)11Ti bulk magnets were successfully produced using a newly developed high pressure pressing fabrication method. The purity of the hard magnetic ThMn12 phase in magnet reached to higher than 97 wt.%. transformation behavior from amorphous during heat treatment was systematically investigated by transmission electron microscopy. remanent magnetization and maximum energy product 96.0 emu/g 12.22 MGOe, respectively. To best our knowledge, achieved is highest among all SmFe12-based reported.