The Effect of Dy-Additive on Phase Transformation and Magnetic Properties of Fe-Pt Alloy Films

Gang Cheng; Yi Zhe Sun; Kuang Pan; Lin Li; Lei Ma; Zheng Fei Gu

doi:10.4028/www.scientific.net/AMM.513-517.48

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 513-517The Effect of Dy-Additive on Phase Transformation...

The Effect of Dy-Additive on Phase Transformation and Magnetic Properties of Fe-Pt Alloy Films

Abstract:

A series of Fe-Pt based alloy films were deposited on glass substrates by DC magnetron sputtering. It is found that the Fe₃Pt and FePt₃ phases appear in Dy-addition films at first and then a composition reaction Fe₃Pt + FePt₃ FePt occurs at 500°C as annealing time increase. It suggested that Dy element can restrain the fct phase forming but help to form Fe₃Pt and FePt₃ phases. Coercivity and remanence ratio of Dy_xFe_50-xPt₅₀ alloy films annealed at 500°C for 200 h achieve the maximum 11kOe and 0.89 as x =1.5, respectively.

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Periodical:

Applied Mechanics and Materials (Volumes 513-517)

Pages:

48-50

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.513-517.48

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Online since:

February 2014

Authors:

Gang Cheng*, Yi Zhe Sun, Kuang Pan, Lin Li, Lei Ma, Zheng Fei Gu

Keywords:

FePt Alloy Films, Magnetic Property, Phase Transformation

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