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Computer Simulation of Final-Stage Sintering: II, Influence of Initial Pore Size
Journal of the American Ceramic Society
  • I-Wei Chen, University of Michigan-Ann Arbor
  • Gregory N. Hassold, Kettering University
  • David J. Srolovitz, University of Michigan-Ann Arbor
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A two-dimensional Monte Carlo simulation procedure has been used to investigate the effect of the initial pore size on the microstructural evolution and the kinetics of final-stage sintering. The sintering time scales with r40/Dgb and the grain-growth time scales with r2O/Dm. Pores are found to effectively pin the grain boundaries from the beginning of final-stage sintering at a porosity of Φ= 0.09 until Φ= 0.03. For Φ 0.03, the remaining pores do not effectively retard grain-boundary migration and normal grain growth occurs. Small pores were found to be less effective at retarding grain growth than expected on the basis of a simple grain-growth pinning model. The mean pore size was found to be nearly constant throughout the simulations.

Presented at the 91st Annual Meeting of the American Ceramic Society, Indianapolis, IN, April 23–27, 1989 (Basic Science Division, Paper No. 63-B-89).

Supported by the U. S. Department of Energy (BES), Grant No. DEFG02-87ER 45302 (IWC) and the University of Michigan (GNH and DJS).

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© 1990 by The American Ceramic Society

Citation Information
I-Wei Chen, Gregory N. Hassold and David J. Srolovitz. "Computer Simulation of Final-Stage Sintering: II, Influence of Initial Pore Size" Journal of the American Ceramic Society Vol. 73 Iss. 10 (1990) p. 2865 - 2872 ISSN: 1551-2916
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