Nanocrystalline Nd-Fe-B Alloys for Polymer-Bonded Magnets Production | Zendy

Aleksandar Grujić | Zendy; Vladan Ćosović | Zendy; Aleksandar Ćosović | Zendy; Jasna Stajić-Trošić | Zendy

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Nanocrystalline Nd-Fe-B Alloys for Polymer-Bonded Magnets Production

Author(s) -

Aleksandar Grujić,

Vladan Ćosović,

Aleksandar Ćosović,

Jasna Stajić-Trošić

Publication year - 2012

Publication title -

isrn nanotechnology

Language(s) - English

Resource type - Journals

eISSN - 2090-6072

pISSN - 2090-6064

DOI - 10.5402/2012/438436

Subject(s) - materials science , neodymium , remanence , nanocrystalline material , coercivity , polymer , nanocomposite , magnet , composite number , phase (matter) , stoichiometry , composite material , magnetic nanoparticles , nanoparticle , metallurgy , magnetization , nanotechnology , condensed matter physics , magnetic field , chemistry , optics , laser , quantum mechanics , physics , organic chemistry

This study presents how different nanostructures of starting Nd-Fe-B particles have influence on magnetic properties of polymer-bonded Nd-Fe-B materials. Two types of nanocrystalline Nd-Fe-B alloys were used for polymer composite production by compression molding technique. The particles with low neodymium content (Nd-low) have nanocomposite structure with small exchange coupling effect between hard and soft magnetic phase. In other hand, practically monophase hard magnetic structure of Nd-Fe-B particles with stoichiometric neodymium content (Nd-stoich) shows improved magnetic properties. With increasing concentration of polymer matrix, the coercivity (Hcb), remanence (Br), and maximum energy product ((BH)max) decrease more prominenty for composites with stoichiometric Nd-Fe-B content.

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