Title of article :
Effects of C and Ti additions on the microstructures of Nd9Fe77B14 nanocomposite magnets
Author/Authors :
Ohkubo، نويسنده , , T. and Miyoshi، نويسنده , , T. and Hirosawa، نويسنده , , S. and Hono، نويسنده , , K.، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2007
Abstract :
The effect of Ti and C additions on the microstructures and the magnetic properties of Nd–Fe–B isotropic nanocomposite processed from Nd9Fe77B14, Nd9Fe73B14Ti4 and Nd9Fe73B12.6C1.4Ti4 (numbers indicate at.%) alloys has been investigated by transmission electron microscopy and three-dimensional atom probe techniques. The grain size was substantially refined by the addition of Ti due to the formation of Ti-enriched amorphous grain boundary. Further addition of C enhanced the enrichment of Ti in the grain boundary phase, which led to the increase of coercivity and maximum energy product.
Keywords :
nanocomposite magnet , microstructure , TEM , 3DAP , Nd–Fe–B magnets , Hard magnetic materials
Journal title :
MATERIALS SCIENCE & ENGINEERING: A
Journal title :
MATERIALS SCIENCE & ENGINEERING: A
