|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Advanced Magnetic Materials for Energy and Power Conversion Applications
||Effect of Mn and Sb Substitutions on the Structural and Magnetic Properties of Fe1-xMnxSn1-ySby Alloys
||Cristina Echevarria-Bonet, Olga Vekilova, Heike C. Herper, Daniel Salazar, Ana Maria Schönhobel, Andres Martin-Cid, Rajasekhar Madugundo, Jose Manuel Barandiaran, George C. Hadjipanayis
|On-Site Speaker (Planned)
||Heike C. Herper
Fe3Sn is a potential material for permanent magnets(PM) because it does not contain any critical raw materials (CRM), has a hexagonal structure and excellent magnetic properties; however, its planar anisotropy is not desirable for PM development. Fe3Sn is only stable between 750-880ºC and can be obtained only by Solid State reaction(SSR) or mechanical alloying. Switching planar anisotropy into uniaxial was theoretically predicted by substitution of some Sn with Sb [B.C.Sales,Sci.Rep(2014)]; however, this leads to phase segregation that is avoided by a simultaneous substitution of Fe with Mn.
In this work, several Fe3-xMnxSn1-ySby alloys were produced by SSR and studied by XRD and magnetometry techniques. Preliminary results showed the presence of 3:1-phase, with a cell volume enhancement up to 6%. The Tc for Fe1.5Mn1.5Sn0.75Sb0.25 decreased to 130ºC, compared to Tc=475ºC of Fe3Sn. The effect of the substitutions on the magnetic properties and especially the magnetocrystalline anisotropy will be studied and reported.
||Planned: Supplemental Proceedings volume