Effect of quench rate on nanostructure and magnetic properties of PrCo5 | Zendy

W. Y. Zhang | Zendy; R. Skomski | Zendy; X. Z. Li | Zendy; Shah Valloppilly | Zendy; Julian HamiltonShield | Zendy; D. J. Sellmyer | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

Effect of quench rate on nanostructure and magnetic properties of PrCo5

Author(s) -

W. Y. Zhang,

R. Skomski,

X. Z. Li,

Shah Valloppilly,

Julian HamiltonShield,

D. J. Sellmyer

Publication year - 2014

Publication title -

journal of applied physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.699

H-Index - 319

eISSN - 1089-7550

pISSN - 0021-8979

DOI - 10.1063/1.4865972

Subject(s) - coercivity , remanence , materials science , nucleation , magnetocrystalline anisotropy , condensed matter physics , nanostructure , magnet , alloy , melt spinning , magnetic anisotropy , single domain , temperature coefficient , magnetic domain , nuclear magnetic resonance , magnetic field , composite material , nanotechnology , magnetization , spinning , thermodynamics , physics , quantum mechanics

The effect of quench rate on nanostructure and magnetic properties of PrCo5 alloy has been investigated. The increase of quench rate through wheel speed in melt spinning suppresses the formation of the secondary Pr2Co17 and Pr5Co19 phases with low magnetocrystalline anisotropy field and refines the nanostructure. This significantly improves the coercivity, remanence, and energy product. For example, increasing the wheel speed from 30 m/s to 70 m/s increases the coercivity and energy product from 3.2 kOe and 4.0 MGOe to 10.3 kOe and 13.7 MGOe, respectively. The magnetic hardening mechanism appears to be a mixture of reversed-domain-nucleation and domain-wall-pinning. The temperature coefficient of coercivity for the 70 m/s sample is −0.16%/K from 300 to 700 K, which is better than that of sintered SmCo5 magnets. Low temperature coefficients of coercivity and remanence indicate that rapidly quenched PrCo5 ribbons may be suitable for bonded magnets with high operation temperature.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research