Molecular Dynamics Investigation of the ∑5 Energy Cusp in [001] Twist Boundaries in Cu3Au at T=0 K

1996 ◽  
Vol 207-209 ◽  
pp. 833-836 ◽  
Author(s):  
I.P. Antoniades ◽  
A.J. Patrinos ◽  
G.L. Bleris
1986 ◽  
Vol 77 ◽  
Author(s):  
M. C. Payne ◽  
P. D. Bristowe ◽  
J. D. Joannopoulos

ABSTRACTResults of the first completely ab-initio investigation of the microscopic structure of a grain boundary in a semiconductor are presented. Using the molecular dynamics simulated annealing method for performing total energy calculations within the LDA and pseudopotential approximations, the σ=5(001) twist boundary in germanium is studied. A low energy structure is identified which exhibits a rigid body translation and a small contraction at the boundary.


2017 ◽  
Vol 60 (2) ◽  
pp. 201-205
Author(s):  
G. M. Poletaev ◽  
E. S. Medvedeva ◽  
I. V. Zorya ◽  
D. V. Novoselova ◽  
M. D. Starostenkov

1988 ◽  
Vol 49 (C5) ◽  
pp. C5-139-C5-150 ◽  
Author(s):  
C. COUNTERMAN ◽  
L.-Q. CHEN ◽  
G. KALONJI

2018 ◽  
Vol 03 (01n02) ◽  
pp. 1850001 ◽  
Author(s):  
G. M. Poletaev ◽  
I. V. Zorya ◽  
M. D. Starostenkov

The interaction of point defects with low-angle (100), (110) and (111) twist boundaries in fcc metals Ni, Cu, Al and role of the point defects in self-diffusion along considered boundaries were studied by the molecular dynamics method. The binding energies of point defects with low-angle twist boundaries were calculated. It was found that the point defects are mainly fixed in the nodes of grain-boundary screw dislocations network. It was shown that the introduced vacancies play an important role in diffusion along twist grain boundaries. The contribution of introduced interstitial atoms to grain-boundary diffusion under thermodynamic equilibrium condition is less by several orders of magnitude in comparison with the contribution of vacancies.


AIP Advances ◽  
2017 ◽  
Vol 7 (4) ◽  
pp. 045105 ◽  
Author(s):  
Jan K. Bohrer ◽  
Kevin Schröer ◽  
Lothar Brendel ◽  
Dietrich E. Wolf

1995 ◽  
Vol 52 (13) ◽  
pp. 9291-9299 ◽  
Author(s):  
A. J. Patrinos ◽  
I. P. Antoniades ◽  
G. L. Bleris

Sign in / Sign up

Export Citation Format

Share Document