Densities and molar volumes of solid lithium-magnesium (Li-Mg) alloys

Abstract

Densities of solid Mg and Li-Mg alloys were measured for five compositions of mole fractions of Li equal to 0.05,0.1,0.15,0.20, and 0.25, respectively, by the dilatometric method. The curvilinear dependence of the density on temperature (room temperature up to 873 K) was observed for all investigated alloys. Results could be described by parabolic equations. The molar volumes of Li-Mg alloys were calculated from the density measurements. It has been found that the densities of solid Li-Mg alloys show positive deviations from linearity, and the molar volumes exhibit negative deviations from linear dependence for all samples in the experimental concentration range. It was possible to describe the dependence of density on temperature and concentration by a polynomial. Coefficients of thermal expansion were calculated and discussed. The density of the (Li) phase along the (Li)/[(Mg) + (Li)] boundary was calculated and described by a temperature-dependent polynomial of the third power.

This is a preview of subscription content, access via your institution.

Cited References

  1. 60Gme:

    Gmelins Handbuch System, No. 20,Lithium, Verlagchemie, GmbH, Veinheim/Bergstrasse, 166 (1960).

  2. 76Smi:

    J.F. Smith and Z. Moser,J. Nucl. Mater., 59, 158–174(1976).

    Article  ADS  Google Scholar 

  3. 79Met:

    Metals Handbook, 9th ed., Vol. 2, American Society for Metals, MetalsPark,OH,714(1979).

  4. 80Rup:

    H. Ruppersberg, J. Saar, W. Speicher, and P. Heitjans,J. Phys., 41(CS), 595–598 (1980).

    Google Scholar 

  5. 96Gas:

    W. Gasior, Z. Moser, W. Zakulski, and G. Schwitzgebel,Mater. Metall. Trans., 27A, 2419–2428 (1996).

    Article  Google Scholar 

  6. 97Dud:

    F.P. Dudel, J.L. Gole, T.H. Sanders, J. King, and K. Browner,Philos. Mag. B, 75, 733–755 (1997).

    Google Scholar 

  7. 98Gas:

    W. Gasior, Z. Moser, and J. PstruŚ,J. Phase Equilibria, 79(3), 234–238(1998).

    Article  Google Scholar 

Download references

Author information

Affiliations

Authors

Rights and permissions

Reprints and Permissions

About this article

Cite this article

Gasior, W., Moser, Z. & PstruŚ, J. Densities and molar volumes of solid lithium-magnesium (Li-Mg) alloys. JPE 19, 568 (1998). https://doi.org/10.1361/105497198770341761

Download citation

Keywords

  • Mole Fraction
  • Molar Volume
  • Parabolic Equation
  • Excess Molar Volume
  • Titanium Sponge