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Magnetic hardening of Sm-Fe-Ti alloys

Journal Article · · Journal of Applied Physics; (USA)
DOI:https://doi.org/10.1063/1.344744· OSTI ID:7123658
; ; ;  [1]
  1. Siemens AG, Research Laboratories, D-8520 Erlangen, West Germany (DE)
The coercivity {ital H}{sub {ital ci}} of melt-spun Sm-Fe-Ti alloys can be increased to above 4.0 kA/cm by the addition of Zr and Co. Co-substitutions also enhance the remanence {ital J}{sub {ital r}} and suppress the formation of {alpha}-Fe, both of which result in a high-energy product, ({ital BH}){sub max}, of up to 56 kJ/m{sup 3}, the highest value reported so far for 1:12-type magnets. In Sm{sub 20}Fe{sub 70}Ti{sub 10} alloys prepared by mechanical alloying or by rapid quenching a new hard-magnetic phase is observed with room-temperature coercivities of 40 and 33 kA/cm, respectively.
OSTI ID:
7123658
Journal Information:
Journal of Applied Physics; (USA), Journal Name: Journal of Applied Physics; (USA) Vol. 67:9; ISSN 0021-8979; ISSN JAPIA
Country of Publication:
United States
Language:
English

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