Based on global optimization method for inter-diffusion analysis of multicomponent melts

Hu, Jiafu; Zhong, Langxiang; Chen, Cheng; Zhang, Bo

doi:10.1360/sspma2015-00427

Sci. Sin.-Phys. Mech. Astron.

2016

DOI: 10.1360/sspma2015-00427

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Based on global optimization method for inter-diffusion analysis of multicomponent melts

Jiafu Hu¹,

Langxiang Zhong²,

Cheng Chen³

et al.

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A new analysis method based on the Onsager reciprocal relations for interdiffusion in a multicomponent melt

Zhong

Chen

et al. 2021

Journal of Applied Physics

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It is a significantly difficult problem to obtain the diffusion coefficients by analyzing the concentration profiles in multicomponent melts. Here, based on the Onsager reciprocal relations, we report a new analysis method, which can achieve the diffusion coefficient matrix by fitting the concentration profiles under a given diffusion time. Our method allows us to obtain the interdiffusion coefficient matrix in a multicomponent system via just a single diffusion couple experiment. Thus, it shows obvious merits compared to the previously reported diffusion path method and the square root diffusivity method. As a qualifying example, the four independent interdiffusion coefficients in a Ce–Al–Cu ternary liquid alloy have been derived from the concentration profiles measured by the multi-slice sliding cell technique. It is demonstrated that such a single experiment analysis method shows great potential for wide use in a multicomponent system.

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A new analysis method based on the Onsager reciprocal relations for interdiffusion in a multicomponent melt

Zhong

Chen

et al. 2021

Journal of Applied Physics

View full text Add to dashboard Cite

show abstract

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Based on global optimization method for inter-diffusion analysis of multicomponent melts

Cited by 1 publication

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A new analysis method based on the Onsager reciprocal relations for interdiffusion in a multicomponent melt

A new analysis method based on the Onsager reciprocal relations for interdiffusion in a multicomponent melt

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