Three-dimensional computer simulation of time-dependent skeletal structure evolution during liquid phase sintering

2011 ◽  
Vol 18 (2) ◽  
pp. 022003
Author(s):  
Zoran S Nikolic ◽  
Momcilo M Ristic ◽  
Kazunari Shinagawa
Keyword(s):  
Computer Simulation ◽  
Liquid Phase ◽  
Three Dimensional ◽  
Liquid Phase Sintering ◽  
Time Dependent ◽  
Skeletal Structure ◽  
Structure Evolution

Computer Simulation of Liquid Phase Sintering: Gravity Induced Skeletal Structure Evolution – A Review

2009 ◽  
Vol 624 ◽  
pp. 19-42
Author(s):  
Zoran S. Nikolic
Keyword(s):  
Liquid Phase ◽  
Solid Phase ◽  
Local Equilibrium ◽  
Liquid Phase Sintering ◽  
Domain Model ◽  
Skeletal Structure ◽  
Structure Evolution ◽  
Time Interval ◽  
Extended Model ◽  
Solid Skeleton

This paper summarizes and reviews a number of important theoretical and experimental results connected to study of gravitational effects on liquid phase sintering. However, we will also investigate numerically gravity induced skeletal structure evolution during liquid phase sintering. Applying domain methodology, solid skeleton evolution will be introduced by definition of skeleton units determined by equilibrium dihedral angle and formation of large solid skeleton arranged in long chain of connected solid-phase domains. The settling procedure will be simulated by two submodels: free settling model in which solid-phase domains fall under gravity over already settled domains, and extended model in which settled domains continue their motion till they reach a position of their local equilibrium. Three more submodels will be also defined: rearrangement densification model, settling densification model, and Brownian motion model. It will be assumed that under gravity condition Stokes’s law settling usually dominates microstructure formation, where the settling procedure as well as settling time will be used for computation of average migration distance during defined time interval. Thus gravity induced solid-phase domain structure evolution will be simulated by simultaneous computation of displacement of the center of mass. The new methodology will be applied for simulation of microstructural evolution of a regular multi-domain model under gravity and gravity conditions.

scholarly journals Basic and mixed models for computer simulation of liquid phase sintering of a porous structure

2007 ◽  
Vol 39 (1) ◽  
pp. 3-8 ◽  
Author(s):  
Z.S. Nikolic
Keyword(s):  
Computer Simulation ◽  
Liquid Phase ◽  
Porous Structure ◽  
Microstructural Evolution ◽  
Mixed Models ◽  
Liquid Phase Sintering ◽  
Two Dimensional ◽  
Gravitational Effects ◽  
Diffusion Phenomena

A two-dimensional method based on basic and mixed models for simulation of liquid phase sintering of a porous structure will be developed. These models will be tested in order to conduct a study of diffusion phenomena and gravitational effects on microstructural evolution during liquid phase sintering of a W-Ni system.

Computer simulation code for particle growth in liquid phase sintering

1988 ◽  
Vol 22 (1) ◽  
pp. 71-76 ◽  
Author(s):  
J.M. Chaix ◽  
M. Guyon ◽  
J. Rodriguez ◽  
C.H. Allibert
Keyword(s):  
Computer Simulation ◽  
Liquid Phase ◽  
Particle Growth ◽  
Liquid Phase Sintering ◽  
Simulation Code
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