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Relation between magnetic aftereffect in Cu-1-percent Co solid solution and ferromagnetic particle precipitation process

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4 Author(s)
Mizia, J. ; Metallurgy Institute of the Academy of Mining and Metallurgy, Cracow, Poland ; Kozlowski, L. ; Figiel, H. ; Japa, S.

The notion of relaxation gate is introduced. On its basis, a simple Jordan type model of relaxation is proposed. This model enables the derivation of a formula relating the magnetic after-effect constant with the energy-barrier distribution of microregion magnetization. The magnetic aftereffect constant Sothe remanence \bar{I}_{R} , and the coercive force Hcwere measured at different aging times for a polycrystal and single crystals of Cu-1-percent Co alloy at a temperature of 600°C. The measurements were performed with a specially adapted measuring arrangement. From the derived formula and data obtained from magnetic measurements, it was found that both heterogenous and homogenous groups of particles become precipitated. At a certain stage of aging, the stable homogenous particles become converted from independent particles into strongly interacting ones.

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Magnetics, IEEE Transactions on  (Volume:6 ,  Issue: 3 )