title: Effect of Zr, V, Nb, Mo, and Ta substitutions on magnetic properties and microstructure of melt-spun SmCo5magnets.
abstract: We have investigated effects of metal substitutions on the magnetic properties and microstructure of melt-spun Sm-Co-Cu-Fe-M (M = Zr, V, Nb, Mo, Ta) magnets. We prepared melt-spun ribbons with compositions of Sm(Co1-xCux)5Fe0.54-yMy(x= 0.1-0.5,y= 0-0.43, M = Zr, V, Nb, Mo, Ta). For compositions of Sm(Co1-xCux)5Fe0.54(x= 0.1-0.5), coercivity increased with increasing of annealing temperature, and a high coercivity of 17.6 kOe was obtained at a Cu content ofx= 0.3. The coercivity was found to increase with increasing melting point of the substitution element. A high coercivity of 24.5 kOe was obtained for a composition of Sm(Co0.7Cu0.3)5Fe0.34Ta0.2.
authors.forename: Tomokazu
authors.initials: T
authors.lastname: Fukuzaki
authors.forename: Hiroaki
authors.initials: H
authors.lastname: Iwane
authors.forename: Kazutomo
authors.initials: K
authors.lastname: Abe
authors.forename: Toshihiro
authors.initials: T
authors.lastname: Doi
authors.forename: Ryuji
authors.initials: R
authors.lastname: Tamura
authors.forename: Tadaaki
authors.initials: T
authors.lastname: Oikawa