Potts model simulation of grain size distributions during final stage sintering

Conference · Tue Sep 01 00:00:00 EDT 1998

OSTI ID:658255

Zeng, P ^[1]; Tikare, V ^[2]

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1. Univ. of Connecticut, Storrs, CT (United States). Center for Materials Simulations
2. Sandia National Labs., Albuquerque, NM (United States)

The Potts Monte Carlo model was used to simulate microstructural evolution and characterize grain size distribution during the final stages of sintering. Simultaneous grain growth, pore migration and pore shrinkage were simulated in a system with an initial porosity of 10% with varying ratios of grain boundary mobility to pore shrinkage rates. This investigation shows that the presence of pores changes the grain size distribution and the topological characteristics due to pinning of grains by pores. As pores shrink away, their pinning effect decreases. Once pore shrinkage is complete, normal grain growth is achieved.

• Research Organization: Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC04-94AL85000
• OSTI ID: 658255
• Report Number(s): SAND-97-3052C; CONF-980405-; ON: DE98005906; BR: DP0101031; TRN: AHC2DT06%%139
• Resource Relation: Conference: Spring meeting of the Materials Research Society, San Francisco, CA (United States), 13-17 Apr 1998; Other Information: PBD: 1998
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
MICROSTRUCTURE
MORPHOLOGICAL CHANGES
SINTERING
POROSITY
GRAIN BOUNDARIES
ALGORITHMS
TWO-DIMENSIONAL CALCULATIONS