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Low-temperature calorimetric evaluation of aluminum–lithium alloys

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4 Author(s)
Wang, C.R. ; Institute of Physics, Academia Sinica, Taipei, Taiwan ; Neeleshwar, S. ; Chen, Y.Y. ; Ho, J.C.

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Low temperature calorimetric measurements have been made on a series of binary aluminum alloys containing 1–10 at. % lithium. The heat capacity data are analyzed in terms of an electronic and a lattice contribution. Accordingly, the low level of lithium addition yields appreciable changes in the electronic density-of-states at Fermi level and the characteristic Debye temperature of lattice. These results reflect certain degrees of electron localization between aluminum and lithium atoms, providing a fundamental basis for solid solution strengthening in the lightweight materials with great potential in aerospace applications. © 2003 American Institute of Physics.

Published in:

Journal of Applied Physics  (Volume:94 ,  Issue: 12 )