Study on important diffusion parameters of binary Ni3Sn4 phase
Study on important diffusion parameters of binary Ni3Sn4 phase
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DOI:
10.1007/s10854-013-1133-2
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发表时间:
2013-02
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影响因子:
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通讯作者:
C. Ghosh
中科院分区:
文献类型:
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作者:
C. Ghosh
Important diffusion parameters, such as—parabolic growth constant, integrated diffusivity, ratio of intrinsic diffusivities of species Ni and Sn, Kirkendall marker velocity and the activation energy for diffusion kinetics of binary Ni3Sn4phase have been investigated with the help of incremental diffusion couple technique (Sn/Ni0.57Sn0.43) in the temperature range 200–150 °C. Low activation energy extracted from Arrhenius plot indicates grain boundary controlled diffusion process. The species Sn is three times faster than Ni at 200 °C. Further, the activation energy of Sn tracer diffusivity is greater than that of Ni.