Title 



Relation between transport and thermodynamic properties in liquid spelectron metals near freezing
 
Author 



 
Abstract 



Classical statistical mechanics based on assumed pair potentials leads, for liquid metals, to an approximate relation between shear viscosity eta, surface tension sigma, and thermal velocity upsilon(T) defined as (k(B)T/M)(1/2), with M the ionic mass. Theory predicts for the dimensionless grouping sigma/eta upsilon(T) evaluated at the melting temperature Tm a single value 15/16; liquid spelectron metals exhibit, however, a scatter from around 0.7 to 2.3. Therefore, an alternative grouping sigma/eta upsilon(s), with upsilon(s) the velocity of sound, is considered here in detail, first using experimental data and second using both theoretical and semiempirical arguments. The scatter of sigma/eta upsilon(s) at Tm is less than for the earlier grouping, and also insight can be gained as to various physical factors determining sigma/eta upsilon(s). In essence, this quantity is proportional to the product of two factors, both dimensionless, namely, the surface thickness L measured in units of the mean interionic separation, and the square root of the energy M upsilon(s)(2), measured in units of the thermal energy k(B)T(m). Theoretical estimates are made of both of these factors, in fair accord with the experimental data. [S1063651X(99)076102].   
Language 



English
 
Source (journal) 



Physical review : E : statistical physics, plasmas, fluids, and related interdisciplinary topics.  Lancaster, Pa, 1993  2000  
Publication 



Lancaster, Pa : 1999
 
ISSN 



1063651X [print]
10953787 [online]
 
Volume/pages 



60:4Part a(1999), p. 41254129
 
ISI 



000083414800078
 
Full text (Publishers DOI) 


  
Full text (open access) 


  
