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Effects of the Wetting Particles on Phase Separation of Binary Mixtures |
| LIU Ji-Wen;MA Yu-Qiang |
| National Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093 |
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| Cite this article: |
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LIU Ji-Wen, MA Yu-Qiang 2000 Chin. Phys. Lett. 17 824-826 |
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Abstract We study phase separation of binary mixtures in the presence of mobile particles by the lattice Monte Carlo simulation. The presence of mobile particles changes the morphology of the domain growth, in agreement with earlier experimental result. By varying the wetting interaction strength, we can control the speed of phase separation, and find a critical wetting strength beyond which the growth of the domains slows down. We propose a novel scaling function which describes the growth of the domain size L(t) as a function of time. It suggests an applicable way to tune the speed of phase separation by the coupling between the phase decomposition and the mobile particle-wetting process.
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64.75.+g
66.30.Jt
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Published: 01 November 2000
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