Local Structure of MD Simulated Soda-Lime-Silicate Glass

1996 ◽  
Vol 455 ◽  
Author(s):  
Xianglong Yuan ◽  
Alastair N. Cormack

ABSTRACTSimulation of soda-lime-silicate (sis) glass has been performed using molecular dynamics (MD). The local structure of each component is analyzed extensively in terms of total radial distribution function and coordination number and found to be insensitive to the composition change. Because of its big size, Na+/Ca2+ shows a behavior rather like O2− instead of Si4+. It is evident that the CN and local structure of Na+ with O2− are similar to those in crystalline a-Na2Si2O5. Finally, the Na+/Ca2+ cluster phenomenon is discussed.

2012 ◽  
Vol 218 (1-3) ◽  
pp. 41-45 ◽  
Author(s):  
Shiro Kubuki ◽  
Jun Iwanuma ◽  
Kazuhiko Akiyama ◽  
Zoltán Homonnay ◽  
Ernő Kuzmann ◽  
...  

ISIAME 2012 ◽  
2012 ◽  
pp. 197-201
Author(s):  
Shiro Kubuki ◽  
Jun Iwanuma ◽  
Kazuhiko Akiyama ◽  
Zoltán Homonnay ◽  
Ernő Kuzmann ◽  
...  

2019 ◽  
Vol 8 (2) ◽  
pp. 10
Author(s):  
Dung Nguyen Trong ◽  
Huy Nguyen Quoc

This paper studies the effect of atomic numbers (N), N=2000atoms, 3000atoms, 4000atoms, 5000atoms, 6000atoms at temperature (T), T=300K; N=5000atoms at T=300K, 500K, 1000K, 1500K, 2000K, 2500K, 3000K, 3500K; N=5000atoms at T=300K, 2000K with pressure (P), P=0GPa, 20GPa, 40GPa, 60GPa, 80GPa, 100GPa on the structure of MgSiO3 bulk by Molecular Dynamics method (MD) with Born-Mayer potential (BM), periodic boundary conditions. The results were analyzed through the radial distribution function (RDF), coordination number, angle distribution, size (l), energy (E). The results showed that there are the effects of factors on the structure of MgSiO3 bulk. In addition, with the atomic number (N), temperature (T), different pressures (P) at temperature T=300K, 2000K there are the appearance and disappearance of links Si-Si, Si-O, O-O, Si-Mg, O-Mg, Mg-Mg and number of structural units SiO4, SiO5, SiO6, MgO3, MgO4, MgO5, MgO6, MgO7, MgO8, MgO9 , MgO10, MgO11, MgO12


2021 ◽  
Vol 2021 ◽  
pp. 1-12
Author(s):  
Dung Nguyen Trong ◽  
Van Cao Long

This study aims to study the effect of several structural factors, such as number of atoms (N), shell thickness (d), and temperature (T), on the structure of amorphous iron nanoparticle (amorphous nano-Fe) by using the molecular dynamics (MD) method with Sutton–Chen (SC) dip interaction and free boundary conditions. The structural parameters of amorphous nano-Fe include their size (D), energy (E), radial distribution function (RDF), coordination number (CN), and coordination number density (CNd). The results show that the glass temperature ( T g ) and the first peak position (r) of radial distribution function (RDF) have the values of T g  = 900 K and r = 2.55 Å, respectively. Furthermore, the values of parameters D and E are always proportional to N−1/3 and N−1, respectively. Regarding the effect of number of atoms, shell thickness, and the temperature on the structure of amorphous nano-Fe, we found that the increase in atoms number leads to decrease in the RDF height and increase in the coordination number (CN). However, increasing temperature leads to decreasing the shell thickness of amorphous nano-Fe.


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