Emergence of Undulations and Determination of Materials Properties in Large-Scale Molecular Dynamics Simulation of Layered Double Hydroxides

2007 ◽  
Vol 19 (23) ◽  
pp. 5510-5523 ◽  
Author(s):  
Mary-Ann Thyveetil ◽  
Peter V. Coveney ◽  
James L. Suter ◽  
H. Chris Greenwell
2018 ◽  
Vol 54 (35) ◽  
pp. 4394-4397 ◽  
Author(s):  
Kanittika Ruengkajorn ◽  
Valentina Erastova ◽  
Jean-Charles Buffet ◽  
H. Chris Greenwell ◽  
Dermot O'Hare

We describe a novel post treatment for layered double hydroxide using aqueous immiscible solvents (AIM solvents). This was studied experimentally and using molecular dynamics simulation.


Metals ◽  
2018 ◽  
Vol 8 (10) ◽  
pp. 770 ◽  
Author(s):  
Qinghua Chang ◽  
Jingpei Xie ◽  
Aixia Mao ◽  
Wenyan Wang

Large scale Atomic/Molecular dynamic Parallel Simulator (LAMMPS) molecular dynamics simulation software was used to simulate the copper and aluminum atom diffusion and changes of interface during heating and cooling process of copper and aluminum composite panels. The structures of the interface were characterized through scanning electron microscope (SEM), X-ray diffraction (XRD), and transmission electron microscope (TEM), and the mechanical properties were also tested. The simulation results show that the diffusion rate of copper atom is higher than that of aluminum atom, and that the CuAl2 radial distribution function of the interface at 300 K is consistent with that of pure CuAl2 at room temperature. At 930 K, t = 50 ps Cu atoms spread at a distance of approximately four Al lattice constants around the Al layer, and Al atoms spread to about half a lattice constant distance to the Cu layer. The experimental results show that the thickness of the interface in copper–aluminum composite plate is about 1 μm, and only one kind of CuAl2 with tetragonal phase structure is generated in the interface, which corresponds with the result of molecular dynamics simulation.


2016 ◽  
Vol 18 (26) ◽  
pp. 17461-17469 ◽  
Author(s):  
Z. Y. Hou ◽  
K. J. Dong ◽  
Z. A. Tian ◽  
R. S. Liu ◽  
Z. Wang ◽  
...  

The effect of the cooling rate on the solidification process of liquid aluminium is studied using a large-scale molecular dynamics method.


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