Abstract
This paper describes the use of hydrogen in the processing of Sm2Fe17Nx powders with good coercivity. The hydrogen absorption and desorption behavior of Sm2Fe17 compound were studied. The green compacts of Sm2Fe17 compound were heattreated in hydrogen at around 600∼1000°C, in decomposing into α-Fe and samarium hydrides. They underwent further dehydrogenation by alternating the heating atmosphere into a vacuum, resulting in the reforming Sm2Fe17 phase.
