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Title: A Combined Statistical-Microstructural Model for Simulation of Sintering

Abstract

Sintering theory has been developed either as the application of complex diffusion mechanisms to a simple geometry or as the deformation and shrinkage of a continuum body. They present a model that can treat in detail both the evolution of microstructure and the sintering mechanisms, on the mesoscale, so that constitutive equations with detail microstructural information can be generated. The model is capable of simulating vacancy diffusion by grain boundary diffusion, annihilation of vacancies at grain boundaries resulting in densification, and coarsening of the microstructural features. In this paper, they review the stereological theory of sintering and its application to microstructural evolution and the diffusion mechanism, which lead to sintering. They then demonstrate how these stereological concepts and diffusion mechanisms were incorporated into a kinetic Monte Carlo model to simulate sintering. Finally, they discuss the limitations of this model.

Authors:
; ; ;
Publication Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Sandia National Lab. (SNL-CA), Livermore, CA (United States)
Sponsoring Org.:
US Department of Energy (US)
OSTI Identifier:
13978
Report Number(s):
SAND99-2732C
TRN: AH200135%%521
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Conference
Resource Relation:
Conference: Sintering '99, University Park, PA (US), 11/01/1999--11/03/1999; Other Information: PBD: 22 Oct 1999
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; GRAIN BOUNDARIES; MICROSTRUCTURE; SHRINKAGE; COMPUTERIZED SIMULATION; SINTERING; MATHEMATICAL MODELS; MONTE CARLO METHOD

Citation Formats

BRAGINSKY, MICHAEL V, DEHOFF, ROBERT T, OLEVSKY, EUGENE A, and TIKARE, VEENA. A Combined Statistical-Microstructural Model for Simulation of Sintering. United States: N. p., 1999. Web.
BRAGINSKY, MICHAEL V, DEHOFF, ROBERT T, OLEVSKY, EUGENE A, & TIKARE, VEENA. A Combined Statistical-Microstructural Model for Simulation of Sintering. United States.
BRAGINSKY, MICHAEL V, DEHOFF, ROBERT T, OLEVSKY, EUGENE A, and TIKARE, VEENA. 1999. "A Combined Statistical-Microstructural Model for Simulation of Sintering". United States. https://www.osti.gov/servlets/purl/13978.
@article{osti_13978,
title = {A Combined Statistical-Microstructural Model for Simulation of Sintering},
author = {BRAGINSKY, MICHAEL V and DEHOFF, ROBERT T and OLEVSKY, EUGENE A and TIKARE, VEENA},
abstractNote = {Sintering theory has been developed either as the application of complex diffusion mechanisms to a simple geometry or as the deformation and shrinkage of a continuum body. They present a model that can treat in detail both the evolution of microstructure and the sintering mechanisms, on the mesoscale, so that constitutive equations with detail microstructural information can be generated. The model is capable of simulating vacancy diffusion by grain boundary diffusion, annihilation of vacancies at grain boundaries resulting in densification, and coarsening of the microstructural features. In this paper, they review the stereological theory of sintering and its application to microstructural evolution and the diffusion mechanism, which lead to sintering. They then demonstrate how these stereological concepts and diffusion mechanisms were incorporated into a kinetic Monte Carlo model to simulate sintering. Finally, they discuss the limitations of this model.},
doi = {},
url = {https://www.osti.gov/biblio/13978}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1999},
month = {10}
}

Conference:
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