التفاصيل البيبلوغرافية
| العنوان: |
A three-dimensional Monte Carlo model for coarsening kinetics of the bi-continuous system via surface diffusion and its application to nanoporous gold. |
| المؤلفون: |
Son, Gaeun1 (AUTHOR), Son, Youngkyun1 (AUTHOR), Jeon, Hansol1 (AUTHOR), Kim, Ju-Young1 (AUTHOR) juyoung@unist.ac.kr, Lee, Sukbin1 (AUTHOR) sukbinlee@unist.ac.kr |
| المصدر: |
Scripta Materialia. Jan2020, Vol. 174, p33-38. 6p. |
| مصطلحات موضوعية: |
*OSTWALD ripening, *SURFACE diffusion, *GOLD nanoparticles, *ACTIVATION energy, *MONTE Carlo method |
| مستخلص: |
The coarsening of the two-phase, bi-continuous microstructure via surface diffusion is simulated using a three-dimensional Monte Carlo (MC) model. The coarsening exponent obtained from simulations initially decreases and then saturates at ~4 as the temperature increases. Kinetic analysis on nanoporous gold (np-Au) samples, annealed at 450 and 600 °C, confirms the prediction of the model. The coarsening probability ratio of np-Au between two annealing temperatures, calculated from the reported activation energy for coarsening of np-Au, is comparable to that of the model, signifying that the simulation successfully mimics the kinetic evolution of the thermally coarsened np-Au via surface diffusion. Unlabelled Image [ABSTRACT FROM AUTHOR] |
| قاعدة البيانات: |
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