TY - JOUR N2 - Rare earth Nd-Fe-B, a widely used magnet composition, was synthesized in a shape of powders using gas atomization, a rapid solidification based process. The microstructure and properties were investigated in accordance with solidification rate and densification. Detailed microstructural characterization was performed by using scanning electron microscope (SEM) and the structural properties were measured by using X-ray diffraction. Iron in the form of α-Fe phase was observed in powder of about 30 μm. It was expected that fraction of Nd2Fe14B phase increased rapidly with decrease in powder size, on the other hand that of α-Fe phase was decreased. Nd-rich phase diffused from grain boundary to particle boundary after hot deformation due to capillary action. The coercivity of the alloy decreased with increase in powder size. After hot deformation, Nd2Fe14B phase tend to align to c-axis. L1 - http://journals.pan.pl/Content/111329/PDF/AMM-2019-2-32-Taek-Soo%20Kim.pdf L2 - http://journals.pan.pl/Content/111329 PY - 2019 IS - No 2 EP - 626 DO - 10.24425/amm.2019.127589 KW - Nd-Fe-B KW - gas atomization KW - Powder size KW - Crystal orientation KW - Hot Deformation A1 - Cho, Ju-Young A1 - Abbas, Sardar Farhat A1 - Choa, Yong-Ho A1 - Kim, Taek-Soo PB - Institute of Metallurgy and Materials Science of Polish Academy of Sciences PB - Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences VL - vol. 64 DA - 2019.06.27 T1 - Effect of Powder Size on the Microstructure and Magnetic Properties of ND-FE-B Magnet Alloy SP - 623 UR - http://journals.pan.pl/dlibra/publication/edition/111329 T2 - Archives of Metallurgy and Materials ER -