Driving force for exaggerated grain growth [electronic resource].
- Berkeley, Calif. : Lawrence Berkeley National Laboratory, 1985. and Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
- Physical Description:
- Pages: 11 : digital, PDF file
- Additional Creators:
- Lawrence Berkeley National Laboratory and United States. Department of Energy. Office of Scientific and Technical Information
- Restrictions on Access:
- Free-to-read Unrestricted online access
- The driving force for exaggerated grain growth is derived from a new surface thermodynamic theory which reconciles the kinetics of equilibrium to the thermodynamics of equilibrium between subparts of a particle with anisotropic surface energies. Exaggerated growth is driven by the reduction in dislocation and grain boundary free energies produced when a larger grain sweeps out a volume element formerly occupied by small grains. Whether the advancing boundary is planar, concave, or convex depends on the relative rates of ledge nucleation and growth, on the growth direction, and on whether growth occurs at screw dislocations. The model is compared to observations and additional tests are suggested.
- Published through SciTech Connect., 10/01/1985., "lbl-20524", " conf-8510111-1", "DE86006060", 38. American Ceramic Society Pacific Coast regional meeting, Irvine, CA, USA, 28 Oct 1985., and Searcy, A.W.
- Funding Information:
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