Monte Carlo simulation of circular grain growth

Morón Fernández, Carlos and Maganto Suárez, Fernando José and Tremps Guerra, Enrique and Ramírez Fernández, M. Puerto and García García, Alfonso (2011). Monte Carlo simulation of circular grain growth. "Physica status solidi c", v. 8 (n. 11-12); pp. 3135-3138. ISSN 1610-1642. https://doi.org/10.1002/pssc.201000725.

Description

Title: Monte Carlo simulation of circular grain growth
Author/s:
  • Morón Fernández, Carlos
  • Maganto Suárez, Fernando José
  • Tremps Guerra, Enrique
  • Ramírez Fernández, M. Puerto
  • García García, Alfonso
Item Type: Article
Título de Revista/Publicación: Physica status solidi c
Date: November 2011
ISSN: 1610-1642
Volume: 8
Subjects:
Freetext Keywords: Monte Carlo, Grain growth
Faculty: E.U. de Arquitectura Técnica (UPM)
Department: Aeronaves y Vehículos Espaciales
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

Monte Carlo simulations have been carried out to study the effect of temperature on the growth kinetics of a circular grain. This work demonstrates the importance of roughening fluctuations on the growth dynamics. Since the effect of thermal fluctuations is stronger in d =2 than in d =3, as predicted by d =3 theories of domain kinetics, the circular domain shrinks linearly with time as A (t)=A(0)-αt, where A (0) and A(t) are the initial and instantaneous areas, respectively. However, in contrast to d =3, the slope α is strongly temperature dependent for T≥0.6TC. An analytical theory which considers the thermal fluctuations agrees with the T dependence of the Monte Carlo data in this regime, and this model show that these fluctuations are responsible for the strong temperature dependence of the growth rate for d =2. Our results are particularly relevant to the problem of domain growth in surface science.

More information

Item ID: 38957
DC Identifier: http://oa.upm.es/38957/
OAI Identifier: oai:oa.upm.es:38957
DOI: 10.1002/pssc.201000725
Deposited by: Memoria Investigacion
Deposited on: 11 May 2017 14:50
Last Modified: 11 May 2017 14:50
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