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Transactions: WSEAS TRANSACTIONS ON COMPUTERS
Transactions ID Number: 53-196
Full Name: Wannapong Triampo
Position: Associate Professor
Age: ON
Sex: Male
Address: Department of Physics, Faculty of Science, Mahidol University, Bangkok, Thailand
Country: THAILAND
Tel: +66840042689
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E-mail address: wtriampo@gmail.com
Other E-mails: scwtr@mahidol.ac.th, cmodchang@yahoo.com
Title of the Paper: Effect of vacancy concentration on vacancy-mediated dynamic disordering in binary systems: Monte Carlo Simulations
Authors as they appear in the Paper: Krisda Sudprasert, Busayamas Pimpunchat, Narin Nuttavut, Charin Modchang, Wannapong Triampo
Email addresses of all the authors: srati_wonnuch@hotmail.com, knbusaya@yahoo.com, narinnuttavut@yahoo.com, cmodchang@yahoo.com, wtriampo@gmail.com
Number of paper pages: 10
Abstract: Disordering processes of binary alloy were investigated at various vacancy concentrations by using Monte Carlo Simulations. We studied initially phase-segregated binary alloy illustrated by Ising-like model with a brick wall boundary condition. The kinetic disordering is caused by highly mobile vacancies (exchanging of the alloy atoms with nearby empty sites) arising when suddenly increased in the temperature. We measured the time evolution of time-dependent disorder parameter A(L,V,T;t) (number of broken bond) at very high temperature varying concentrations of vacancies. It was found that the vacancy concentrations were found to be the main factor of the vacancy-mediated disordering dynamic, i.e., we could characterize and predict the dynamic behavior via characteristic exponents, especially, in the time evolution of interface destruction and bulk disordering processes in binary systems.
Keywords: Vacancy-mediated dynamics, Binary alloys, Disorder parameter, Dynamic scaling, Non-equilibrium
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