Determination of diffusion and activity coefficients in the gallium-indium system by the contact-melting method

Savintsev, P. A.; Akhkubekov, A. A.; Getazheev, K. A.; Rogov, V. I.; Savvin, V. S.

doi:10.1007/bf00817972

Cited by 6 publications

(2 citation statements)

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“…The temperature of the thermostat was controlled to an accuracy of ±0.2 K. In the process of diffusion anneal ing, the growth of the thickness of the liquid interlayer was controlled through a viewing window of the ther mostat with the help of an MBS 10 microscope. The known law of diffusion growth [6], according to which the extension of the phase grows proportionally to the square root of the time, was confirmed. After the com pletion of the diffusion annealing, the liquid interlayer was crystallized by quenching in water.…”

Section: Methodsmentioning

confidence: 79%

“…1a. The contact melting was implemented in a nonsta tionary diffusion regime at the temperature Т 0 = 400 K using the procedure described in [6]. In the phase diagram, the isotherm corresponding to the temper ature of the investigation Т 0 intersects the regions of the In based solid solution (denoted as (In)), β phase, liquid phase L, γ phase, and Sn based solid solution (denoted as (Sn)).…”

Section: Methodsmentioning

confidence: 99%

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Processes at the liquid/crystal boundary upon contact melting in the system with intermediate solid phases

Savvin

Anokhina

Povzner

2012

Phys. Metals Metallogr.

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Growth of the liquid interlayer in the indium-tin system at 400 K in the process of contact melting in the nonstationary diffusion regime has been investigated experimentally. The contact pairs were composed of pure substances, solid solutions, and intermediate solid phases. The previously developed concepts have been extended to include the case where the existence of intermediate solid phases on both sides of the liquid phase should be taken into account. It follows from the results obtained that the concentration range of the liquid interlayer corresponds to the homogeneity range of the liquid phase in the phase diagram at the tem perature of experiments. The results of the experiments can be explained based on the model according to which solid solutions and intermediate solid phases at the liquid/crystal interface arise due to the precipita tion from the metastable melt supersaturated by the substance of the adjacent phase.

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Section: Methodsmentioning

confidence: 79%

Section: Methodsmentioning

confidence: 99%