Computer simulation of anisotropic grain growth in ceramics

1993 ◽  
Vol 41 (8) ◽  
pp. 2255-2263 ◽  
Author(s):  
U. Kunaver ◽  
D. Kolar
Keyword(s):  
Computer Simulation ◽  
Grain Growth

Computer simulation of grain growth—I. Kinetics

1984 ◽  
Vol 32 (5) ◽  
pp. 783-791 ◽  
Author(s):  
M.P Anderson ◽  
D.J Srolovitz ◽  
G.S Grest ◽  
P.S Sahni
Keyword(s):  
Computer Simulation ◽  
Grain Growth

Topological Stability of 2-D Vanishing Grains

1992 ◽  
Vol 278 ◽  
Author(s):  
V. E. Fradkov ◽  
M. E. Glicksman ◽  
J. Nordberg ◽  
M. Palmer ◽  
K. Rajan
Keyword(s):  
Computer Simulation ◽  
Grain Boundary ◽  
Grain Growth ◽  
Triple Junctions ◽  
Polycrystalline Films ◽  
Topological Stability ◽  
Von Neumann ◽  
Small Grains ◽  
The Mean ◽  
Boundary Model

AbstractGrain growth in polycrystals occurs by decreasing the total number of grains as a result of the disappearance of small ones. That is why the both the kinetic and topological details of shrinking of small grains are important.In 2-D, “uniform boundary model” assumptions imply the von Neumann-Mullins law, and all grains having less than 6 neighbors tend to shrink. The mean topological class ef vanishing grains was found experimentally to be about 4.3. This result suggests that most vanishing grains are either 4- or 5-sided, not transforming to 3-sided ones.Shrinking of 4- and 5-sided 2-D grains was studied experimentally on transparent, pure SCN, (succinonitrile) polycrystalline films and by direct computer simulation of grain boundary capillary motion together with triple junctions. It was found that the grains which are much smaller than their neighbors are topologically stable.

Practical Evolutions and Computer Simulation of Pores in BaTiO3 Ceramics during Sintering Process

2008 ◽  
Vol 368-372 ◽  
pp. 1585-1587 ◽  
Author(s):  
L.M. Li ◽  
Guo Li Ji ◽  
Y.P. Yang ◽  
Zhao Xian Xiong
Keyword(s):  
Computer Simulation ◽  
Free Energy ◽  
Grain Growth ◽  
Pore Shape ◽  
Sintering Process ◽  
Ceramic System ◽  
Ceramic Microstructure ◽  
Compact Body ◽  
Shape And Size ◽  
Good Agreement

Practical evolutions of pores in BaTiO3 ceramics during sintering are studied, including the preparation of practical BaTiO3 ceramics and observation of ceramic microstructure by SEM. The reduction of porosity and thus dense process results from the change of the free energy in the ceramic system, which is altered by the disappearing of the interface between solid and pore. The sintering process are monitored, including sintering neck growth, pore shape and size changing, grain growth and compact body contracting. Theoretical formulae during the sintering process are applied for the computer simulation. The experimental results of BaTiO3 ceramics are in good agreement with that of simulation.

Zener pinning and grain growth: a two-dimensional vertex computer simulation

1999 ◽  
Vol 47 (3) ◽  
pp. 961-970 ◽  
Author(s):  
D. Weygand ◽  
Y. Bréchet ◽  
J. Lépinoux
Keyword(s):  
Computer Simulation ◽  
Grain Growth ◽  
Two Dimensional ◽  
Zener Pinning
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