scholarly journals Channel Formation and Intermediate Range Order in Sodium Silicate Melts and Glasses

2004 ◽  
Vol 93 (2) ◽  
Author(s):  
A. Meyer ◽  
J. Horbach ◽  
W. Kob ◽  
F. Kargl ◽  
H. Schober
Keyword(s):  
Sodium Silicate ◽  
Range Order ◽  
Silicate Melts ◽  
Channel Formation ◽  
Intermediate Range ◽  
Intermediate Range Order

Intermediate Range Order in Silicate Melts and Glasses: Computer Simulation Studies

2002 ◽  
Vol 754 ◽  
Author(s):  
Jürgen Horbach ◽  
Anke Winkler ◽  
Walter Kob ◽  
Kurt Binder
Keyword(s):  
Large Scale ◽  
Dynamic Properties ◽  
Range Order ◽  
Silicate Melts ◽  
Main Peak ◽  
Static Structure Factor ◽  
Static Structure ◽  
Intermediate Range ◽  
Intermediate Range Order ◽  
Computer Simulation Studies

ABSTRACTWe present the results of large scale computer simulations to discuss the structural and dynamic properties of silicate melts with the compositions (Na2O)(2·SiO2), (Na2O)(20·SiO2) and (Al2O3)(2·SiO2). We show that these systems exhibit additional intermediate range order as compared to silica (SiO2) where the characteristic intermediate length scales stem from the tetrahedral network structure. Furthermore we show that the sodium dynamics in the sodium silicate systems exhibits a very peculiar feature: the long–time decay of the incoherent intermediate scattering function can be described by a Kohlrausch law with a constant exponent β for q > qth whereby qth is smaller than the location of the main peak in the static structure factor for the Na–Na correlations.

The intermediate-range order in molten and glassy GeSe2☆

1989 ◽  
Vol 32-33 ◽  
pp. 954-958 ◽  
Author(s):  
H IYETOMI ◽  
P VASHISHTA ◽  
R KALIA
Keyword(s):  
Range Order ◽  
Intermediate Range ◽  
Intermediate Range Order

Local and Intermediate-Range Order in Cesium Germanate Glass

1995 ◽  
Vol 29 (7) ◽  
pp. 549-553 ◽  
Author(s):  
P Armand ◽  
M Beno ◽  
A. J. G Ellison ◽  
G. S Knapp ◽  
D. L Price ◽  
...  
Keyword(s):  
Range Order ◽  
Germanate Glass ◽  
Intermediate Range ◽  
Intermediate Range Order

Intermediate-range order in permanently densified vitreousSiO2: A neutron-diffraction and molecular-dynamics study

1991 ◽  
Vol 43 (1) ◽  
pp. 1194-1197 ◽  
Author(s):  
S. Susman ◽  
K. J. Volin ◽  
D. L. Price ◽  
M. Grimsditch ◽  
J. P. Rino ◽  
...  
Keyword(s):  
Molecular Dynamics ◽  
Neutron Diffraction ◽  
Range Order ◽  
Intermediate Range ◽  
Intermediate Range Order

Effect of Intermediate Range Order on the Lineshape of the Ge K Edge

1984 ◽  
pp. 26-29 ◽  
Author(s):  
M. G. Proietti ◽  
S. Mobilio ◽  
A. Gargano ◽  
L. Incoccia ◽  
F. Evangelisti
Keyword(s):  
Range Order ◽  
Intermediate Range ◽  
Intermediate Range Order
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