DPG Phi
Verhandlungen
Verhandlungen
DPG

Regensburg 2016 – wissenschaftliches Programm

Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe

MA: Fachverband Magnetismus

MA 2: Magnetic Materials I

MA 2.6: Vortrag

Montag, 7. März 2016, 10:45–11:00, H31

Searching room temperature martensite phases of Fe-Mn-GaJohannes Kroder, •Semih Ener, Konstantin P. Skokov, and Oliver Gutfleisch — Materials Science, Technische Universität Darmstadt, 64287 Darmstadt, Germany

For the search of new permanent magnet materials a bulk high-throughput method is needed. One possible candidate for bulk high-throughput screening is simple and low-cost reactive crucible melting method. The tetragonal phases of the Heusler alloys may show potential as a permanent magnet material. In this work we successfully applied the reactive crucible melting method to the Ni-Mn-Ga and Fe-Mn-Ga ternary Heusler systems. The room temperature ternary phase diagram of Fe-Mn-Ga is reported for a specific composition region. The most interesting observed hard magnetic material is Mn38.5Fe32.5Ga29 with the remanent magnetization of 20 Am2kg−1 and a coercivity of 0.33 T. Observed relatively high coercivity (without any exchange bias effect) shows the possibility of using the Heusler-type materials as hard magnetic materials.

100% | Mobil-Ansicht | English Version | Kontakt/Impressum/Datenschutz
DPG-Physik > DPG-Verhandlungen > 2016 > Regensburg