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Phys. Rev. Lett. 86, 1259–1262 (2001)

Dynamics of Late-Stage Phase Separation in Crystalline Solids

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K. Thornton1,2, Norio Akaiwa3, and P. W. Voorhees1
1Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208
2Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139
3National Research Institute for Metals, Tsukuba, Japan

Received 3 August 2000; published in the issue dated 12 February 2001

The dynamics of Ostwald ripening in elastically stressed crystalline solids is determined through large-scale numerical simulations. Using the insight provided by the simulations, a theory for the dynamics of late-stage phase separation in elastically anisotropic homogeneous solids is developed. Both the theory and simulations show that for the systems considered elastic stress does not alter the exponent of the temporal power law for the average particle size but does affect the amplitude of the power law in a manner that is only a function of the symmetry of the particle morphology.

© 2001 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.86.1259
DOI:
10.1103/PhysRevLett.86.1259
PACS:
64.70.Kb, 81.30.Mh