scholarly journals Analysis of Self-Diffusion of FCC Transition Metals by Modified Analytical Embedded-Atom Method

2013 ◽  
Vol 03 (01) ◽  
pp. 1-5 ◽  
Author(s):  
国祥 陈
Keyword(s):  
Transition Metals ◽  
Embedded Atom Method ◽  
Self Diffusion ◽  
Embedded Atom

Self-diffusion and impurity diffusion of fee metals using the five-frequency model and the Embedded Atom Method

1989 ◽  
Vol 4 (1) ◽  
pp. 102-112 ◽  
Author(s):  
J. B. Adams ◽  
S. M. Foiles ◽  
W. G. Wolfer
Keyword(s):  
Experimental Data ◽  
Transition Metals ◽  
Activation Energies ◽  
Embedded Atom Method ◽  
Vacancy Mechanism ◽  
Frequency Model ◽  
Self Diffusion ◽  
Embedded Atom ◽  
Diffusion Rates ◽  
Jump Frequencies

The activation energies for self-diffusion of transition metals (Au, Ag, Cu, Ni, Pd, Pt) have been calculated with the Embedded Atom Method (EAM); the results agree well with available experimental data for both mono-vacancy and di-vacancy mechanisms. The EAM was also used to calculate activation energies for vacancy migration near dilute impurities. These energies determine the atomic jump frequencies of the classic “five-frequency formula,” which yields the diffusion rates of impurities by a mono-vacancy mechanism. These calculations were found to agree fairly well with experiment and with Neumann and Hirschwald's “Tm” model.

Viscosity of Sn-Cu Solders Investigated by Molecular Dynamics

2011 ◽  
Vol 675-677 ◽  
pp. 1011-1014
Author(s):  
Rui Fang Ding ◽  
Xue Min Pan ◽  
Guang Ling Wei
Keyword(s):  
Molecular Dynamics ◽  
Absolute Temperature ◽  
Embedded Atom Method ◽  
Temperature Zone ◽  
Structure Transition ◽  
Self Diffusion ◽  
Embedded Atom ◽  
Dynamics Simulations ◽  
Lead Free Solders ◽  
Good Agreement

The self-diffusion coefficient of Cu in Sn-1.5wt.%Cu and Sn-2wt.%Cu lead-free solders was investigated using molecular dynamics simulations based on a modified embedded-atom method from 503 K to 773 K. Then the viscosity of the solders was calculated using the selfdiffusion coefficient values, and the results were in good agreement with the experimental data. Two segments, a low-temperature zone and a high-temperature zone, were found on both η–T and lnη–1/T plots, where η is the viscosity and T is the absolute temperature. Through analysis, we infer that the viscosity mutation was attributed to the remarkable structure transition.

Development of a modified embedded atom method for bcc transition metals

2003 ◽  
Vol 15 (50) ◽  
pp. 8917-8926 ◽  
Author(s):  
Xiaoying Yuan ◽  
Kunio Takahashi ◽  
Yifang Ouyang ◽  
Tadao Onzawa
Keyword(s):  
Transition Metals ◽  
Embedded Atom Method ◽  
Embedded Atom ◽  
Modified Embedded Atom Method

Self Diffusion and Activation Energy of Liquid Palladium

1997 ◽  
Vol 08 (06) ◽  
pp. 1217-1221 ◽  
Author(s):  
J. I. Akhter ◽  
K. Yaldram
Keyword(s):  
Activation Energy ◽  
Molecular Dynamics ◽  
Embedded Atom Method ◽  
Many Body ◽  
Fcc Metals ◽  
Self Diffusion ◽  
Embedded Atom ◽  
The Many ◽  
Body Potential ◽  
Self Diffusion Coefficient

Molecular dynamics studies of the temperature dependence of self diffusion coefficient of palladium has been carried out using the many body potential generated by the Embedded Atom Method of Daw and Baskes. These values as well as the results for activation energy are compared with similar results for other fcc metals.

Surface energy and surface self-diffusion of Al calculated by embedded atom method

2013 ◽  
Vol 422 ◽  
pp. 51-55 ◽  
Author(s):  
Ran Li ◽  
Yihua Zhong ◽  
Chao Huang ◽  
Xiaoma Tao ◽  
Yifang Ouyang
Keyword(s):  
Surface Energy ◽  
Embedded Atom Method ◽  
Self Diffusion ◽  
Embedded Atom

Lattice inversion modified embedded atom method for bcc transition metals

2015 ◽  
Vol 98 ◽  
pp. 417-423 ◽  
Author(s):  
Xianbao Duan ◽  
Bing Zhou ◽  
Yanwei Wen ◽  
Rong Chen ◽  
Huamin Zhou ◽  
...  
Keyword(s):  
Transition Metals ◽  
Embedded Atom Method ◽  
Embedded Atom ◽  
Modified Embedded Atom Method
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