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Solubility of gallium in tin in the solid state

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Conclusions

It has been shown by X-ray diffraction and metallographic investigation that a solid solution of gallium in tin is formed when liquid gallium is placed on the surface of solid tin or when a tin-gallium alloy is produced artifically by mixing the metals in the liquid state. The solid solution grains are not etched by some reagents in the same way as the grains of tin, and the microhardness of the solid solution is 42 ± ± 8 kg/mm2 compared with 12 ± 2 kg/mm2 for pure tin. Calculations on 24 X-ray reflections showed that the lattice constants of the tin decreased when the solid solution was formed: Constanta decreased from 5.818 to 5.777 Å, i.e., by 0.70%, and constant c decreased from 3.183 to 3.164 Å, i.e., by 0.60%. The direction of the changes in the lattice constants agree well with the cyrstallographic and chemical data on the ionic radii of tin and gallium.

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Authors and Affiliations

  1. Lomonosov Moscow State University, USSR

    L. I. Mirkin

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  1. L. I. Mirkin
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In conclusion the author wishes to express his gratitude to E. D. Shchukin, A. V. Pertsov, and N. V. Pertsov for contributing to the discussion of the results and to L. L. Krapivin for help in carrying out the experiments.

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Mirkin, L.I. Solubility of gallium in tin in the solid state. Soviet Physics Journal 9, 73–76 (1966). https://doi.org/10.1007/BF00818745

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  • DOI: https://doi.org/10.1007/BF00818745

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