Simulation of anisotropic grain growth by Ostwald ripening

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In this paper, a two-dimensional Potts model that can simulate anisotropic grain growth by Ostwald ripening in liquid-phase-sintered ceramics will be presented. The model defines a Wulff shape for the grains and allows each individual grain to grow in its local environment which is controlled by the solid/liquid interfacial energy, the spatial distribution of neighboring grains, area fraction of grains, wetting by and distribution of the liquid matrix, and the concentration gradients in the liquid. The results of this simulation technique will be presented with emphasis on the kinetics and grain shape evolution and will be compared to those of ... continued below

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8 p.

Creation Information

Tikare, V. & Cawley, J.D. August 1, 1996.

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This report is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. It has been viewed 29 times . More information about this report can be viewed below.

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  • Tikare, V. Sandia National Labs., Albuquerque, NM (United States)
  • Cawley, J.D. Case Western Reserve Univ., Cleveland, OH (United States)

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  • Sandia National Laboratories
    Publisher Info: Sandia National Labs., Albuquerque, NM (United States)
    Place of Publication: Albuquerque, New Mexico

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Description

In this paper, a two-dimensional Potts model that can simulate anisotropic grain growth by Ostwald ripening in liquid-phase-sintered ceramics will be presented. The model defines a Wulff shape for the grains and allows each individual grain to grow in its local environment which is controlled by the solid/liquid interfacial energy, the spatial distribution of neighboring grains, area fraction of grains, wetting by and distribution of the liquid matrix, and the concentration gradients in the liquid. The results of this simulation technique will be presented with emphasis on the kinetics and grain shape evolution and will be compared to those of isotropic grain growth. Finally, the limitations of the Potts model in such microstructural evolution processes will be discussed.

Physical Description

8 p.

Notes

OSTI as DE96011997

Source

  • Ceramic microstructures 96, Berkeley, CA (United States), 24-27 Jun 1996

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  • Other: DE96011997
  • Report No.: SAND--96-1149C
  • Report No.: CONF-9606237--1
  • Grant Number: AC04-94AL85000
  • DOI: 10.2172/266752 | External Link
  • Office of Scientific & Technical Information Report Number: 266752
  • Archival Resource Key: ark:/67531/metadc668599

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Creation Date

  • August 1, 1996

Added to The UNT Digital Library

  • June 29, 2015, 9:42 p.m.

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  • April 14, 2016, 12:42 p.m.

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Tikare, V. & Cawley, J.D. Simulation of anisotropic grain growth by Ostwald ripening, report, August 1, 1996; Albuquerque, New Mexico. (digital.library.unt.edu/ark:/67531/metadc668599/: accessed November 22, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.