caa a22 4500 445382376 CHVBK 20180317143021.0 cr unu---uuuuu 170323e20110101xx s 000 0 eng 10.1007/s10948-010-1015-2 doi (NATIONALLICENCE)springer-10.1007/s10948-010-1015-2 Microstructure and Coercivity in Ball Milled 2-17 Type Sm(CobalFe0.1Cu0.1Zr0.033)6.93 High Temperature Permanent Magnetic Alloy [Elektronische Daten] [M. Faisal, Chengbao Jiang] The research for novel hard magnetic materials for high temperature advanced power applications is still an active area of research. The microstructure and magnetic properties in high temperature hard magnetic alloy have been studied against various milling times in high energy ball milling. The average particle size varies from 1μm to 50μm for ball milling times of 30-180 minutes while keeping the constant weight of balls to powder ratio. The Samarium loss increases in the form of its oxide (Sm2O3) and results in an additional phase in microstructure. Due to this additional phase at grain boundaries and triple points, and Sm loss results in the formation of a kink in the second quadrant of demagnetizing curve. This kink shifts from second quadrant of demagnetizing curve to first quadrant with the increase of amount of Sm loss and additional phase in microstructure. The thermomagnetic analysis, X-ray diffraction, microstructure, and chemical composition analysis have identified the additional phase probably the 5:19R (Sm,Zr)(CoFeCu) phase. The best shape of the demagnetizing curve has been obtained after 60 min of ball milling time with good loop squareness and improved magnetic properties at room and high temperature. Springer Science+Business Media, LLC, 2010 Rare earth alloys and compounds nationallicence High energy ball milling nationallicence High temperature permanent magnets nationallicence Coercivity nationallicence Faisal M. Key Laboratory of Aerospace Materials and Performance (Ministry of Education), School of Materials Science and Engineering, Beihang University, 100083, Beijing, PR China aut Jiang Chengbao Key Laboratory of Aerospace Materials and Performance (Ministry of Education), School of Materials Science and Engineering, Beihang University, 100083, Beijing, PR China aut Journal of Superconductivity and Novel Magnetism Springer US; http://www.springer-ny.com 24/1-2(2011-01-01), 779-783 1557-1939 24:1-2<779 2011 24 10948 https://doi.org/10.1007/s10948-010-1015-2 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10948-010-1015-2 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Faisal M. Key Laboratory of Aerospace Materials and Performance (Ministry of Education), School of Materials Science and Engineering, Beihang University, 100083, Beijing, PR China aut NATIONALLICENCE 700 1- Jiang Chengbao Key Laboratory of Aerospace Materials and Performance (Ministry of Education), School of Materials Science and Engineering, Beihang University, 100083, Beijing, PR China aut NATIONALLICENCE 773 0- Journal of Superconductivity and Novel Magnetism Springer US; http://www.springer-ny.com 24/1-2(2011-01-01), 779-783 1557-1939 24:1-2<779 2011 24 10948 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer