scholarly journals Theory of Inhomogeneous Short Range Order and Calphad Modeling. Part 7. Surrounded Atom Model Reconstructed

2020 ◽  
Author(s):  
Edward Kremer

Formalism of Theory of Inhomogeneous Short Range Order is applied to the caseof ”surrounded atoms”. It is shown that the derived equations have significantlyhigher precision in describing the Short Range Order effects than the commonlyused Surrounded Atoms Model.We argue also that the form of dependence of interatomic interaction on thecomposition, postulated by the Surrounded Atom Model, is artificial and limitsthe area of applicability of the model.

1998 ◽  
Vol 08 (PR2) ◽  
pp. Pr2-175-Pr2-178 ◽  
Author(s):  
G. T. Pérez ◽  
F. H. Salas ◽  
R. Morales ◽  
L. M. Álvarez-Prado ◽  
J. M. Alameda

1985 ◽  
Vol 31 (10) ◽  
pp. 6716-6720 ◽  
Author(s):  
Belita Koiller ◽  
Maria A. Davidovich ◽  
Fritz Lüty

1983 ◽  
Vol 38 (2) ◽  
pp. 142-148 ◽  
Author(s):  
E. Nassif ◽  
P. Lamparter ◽  
W. Sperl ◽  
S. Steeb

Abstract The total structure factors as well as the total pair correlation functions for amorphous Mg85.5Cu14.5 (by neutron and X-ray diffraction) and for amorphous Mg70Zn30 (by X-ray diffraction) were determined. Both alloys show similar chemical short range order effects. From the total pair correlation function of the Mg85.5Cu14.5 glass, partial coordination numbers and atomic distances could be extracted. Comparison with the structure of crystalline Mg2Cu suggests that the short range order around the copper atoms is similar in the amorphous and the crystalline phase. The densities of both amorphous alloys were measured yielding negative excess volumina.


Sign in / Sign up

Export Citation Format

Share Document