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Home  >  Journal list  >  MATERIALS TRANSACTIONS  >  Vol.42  No.12 (2001)  >  pp.2641-2645

MATERIALS TRANSACTIONS
<<Previous article Vol.42  No.12 (2001)   pp.2641 - 2645 Next article>>

Velocity of Sound in Liquid Simple Metals near the Melting Point

Isao Yokoyama1)
1) Department of Applied Physics, National Defense Academy

In this paper we report comparisons between theoretical and experimental values of the velocity of sound in twenty liquid simple metals near the melting point. We used three model theories, namely, (1) an improved Rosenfeld’s approach, (2) Ascarelli’s approach and (3) a modified Ascarelli’s approach. For alkali metals, the three model theories give much the same predictions in the velocity of sound. For polyvalent metals, electrons play an important role when the valency is increased. For noble metals, the degree of agreement between theory and experiment is improved by taking into account the effects of the ionic core due to the s-d hybridization.


Keyword:
velocity of sound, alkali metals, noble metals, polyvalent metals

Received: October 09, 2001
Accepted: November 12, 2001 , Published online: September 06, 2005
Copyright (c) 2005 The Japan Institute of Metals

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