Tracer Diffusion of Fe and Pd in FePt and FePt3

Y. Nosé; Teruyuki Ikeda; Hideo Nakajima; Hiroshi Numakura

doi:10.4028/www.scientific.net/DDF.237-240.450

Paper Titles

Interdiffusion in Fe/Pt Bulk Diffusion Couples
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Non-Destructive Method of Diffusion Parameters Determination in Solids
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Interdiffusion and Al Self-Diffusion in Iron-Aluminides
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Tracer Diffusion of Fe and Pd in FePt and FePt₃
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'Up-Hill' Interdiffusion and Accompanying Effects in Ternary Cu-Ni-5 at. % Sn(In) Systems
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The Effect of Magnetism on Fe Diffusion: New Experimental Results and Ab Initio Calculations
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Chemical Diffusion in TiO₂
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Application of Glow Discharge Spectroscopy for Impurity Diffusion
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HomeDefect and Diffusion ForumDefect and Diffusion Forum Vols. 237-240Tracer Diffusion of Fe and Pd in FePt and FePt3

Tracer Diffusion of Fe and Pd in FePt and FePt₃

Abstract:

The tracer diffusion coefficients of Fe and Pd have been measured in FePt and FePt3 by standard radiotracer experiments. In FePt3 the diffusion coefficients are lower than extrapolations of those in the high-temperature disordered state, exhibiting curved Arrhenius plots below the transformation temperature. The diffusion of Pd is faster than that of Fe, and noticeable dependence on composition is found for the latter. In the L10 ordered FePt, the diffusion of Fe has been verified to be slower in the direction of the tetragonal axis, but the case of Pd appears more complex. The diffusion coefficients of Fe and Pd are similar in magnitude in the L10 ordered state.

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Defect and Diffusion Forum (Volumes 237-240)

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450-455

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https://doi.org/10.4028/www.scientific.net/DDF.237-240.450

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Online since:

April 2005

Authors:

Y. Nosé, Teruyuki Ikeda, Hideo Nakajima, Hiroshi Numakura

Keywords:

Anisotropy in Diffusion, Iron-Platinum Alloys, Order-Disorder Transition, Tracer Diffusion

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