ADDITIVITY OF INTERMOLECULAR FORCES AT INTERFACES. I. DETERMINATION OF THE CONTRIBUTION TO SURFACE AND INTERFACIAL TENSIONS OF DISPERSION FORCES IN VARIOUS LIQUIDS1

1963 ◽  
Vol 67 (12) ◽  
pp. 2538-2541 ◽  
Author(s):  
Frederick M. Fowkes
Keyword(s):  
Intermolecular Forces ◽  
Dispersion Forces ◽  
Interfacial Tensions

VIBRATIONAL FREQUENCY PERTURBATIONS IN THE RAMAN SPECTRUM OF COMPRESSED GASEOUS HYDROGEN

1964 ◽  
Vol 42 (6) ◽  
pp. 1058-1069 ◽  
Author(s):  
A. D. May ◽  
G. Varghese ◽  
J. C. Stryland ◽  
H. L. Welsh
Keyword(s):  
Raman Band ◽  
Intermolecular Forces ◽  
Hydrogen Gas ◽  
High Spectral Resolution ◽  
Intermolecular Potential ◽  
Dispersion Forces ◽  
Frequency Shifts ◽  
Linear Coefficient ◽  
Relative Population ◽  
Good Agreement

The frequencies of the Q(J) lines of the fundamental Raman band of compressed hydrogen gas were measured with high spectral resolution for a series of densities from 25 to 400 Amagat units at 300 °K and 85 °K. The frequency shifts are expressed as a power series in the gas density. The linear coefficient at a given temperature has the form aJ = ai + ae(nJ/n), where ai, constant for all the Q lines, can be interpreted in terms of isotropic intermolecular forces, and ae(nJ/n), proportional to the relative population of the initial J level, arises from the inphase coupled oscillation of pairs of molecules. The temperature variation of ai is analyzed on the basis of the Lennard-Jones intermolecular potential and the molecular pair distribution function. The repulsive overlap forces and the attractive dispersion forces give, respectively, positive and negative contributions to ai, which can be characterized by the empirical parameters Krep and Katt. The values of Katt and ae are in good agreement with calculations based on the polarizability model of the dispersion forces. The relation of the results to the Raman frequency shifts in solid hydrogen is discussed.

Determination of interfacial tensions for Xe nanoprecipitates in Al at 300 K

2003 ◽  
Vol 83 (1) ◽  
pp. 57-64 ◽  
Author(s):  
C. W. Allen ◽  
R. C. Birtcher ◽  
S. E. Donnelly ◽  
M. Song ◽  
K. Mitsuishi ◽  
...  
Keyword(s):  
Interfacial Tensions

Determination of interfacial tensions using rods

1977 ◽  
Vol 10 (3) ◽  
pp. 306-306 ◽  
Author(s):  
E A Boucher ◽  
M J B Evans
Keyword(s):  
Interfacial Tensions
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