Diffusion Induced Interface Migration in Ceramics

1987 ◽  
pp. 541-548 ◽  
Author(s):  
John E. Blendell ◽  
Carol A. Handwerker ◽  
Cynthia A. Shen ◽  
Ngoc-Duyen Dang
Keyword(s):  
Interface Migration

Axisymmetric Finite-Element Analysis for Interface Migration-Controlled Shape Instabilities of Plate-Like Double-Crystal Grains

2012 ◽  
Vol 460 ◽  
pp. 230-235
Author(s):  
Pei Zhen Huang ◽  
Zhou Zhou Zhang ◽  
Jian Wei Guo ◽  
Jun Sun
Keyword(s):  
Finite Element ◽  
Grain Boundary ◽  
Chemical Potential ◽  
Boundary Energy ◽  
Element Analysis ◽  
Interface Motion ◽  
Double Crystal ◽  
Energy Principle ◽  
Chemical Potential Difference ◽  
Interface Migration

An axisymmetric finite-element method is developed to predict the evolution behavior of microstructures by interface migration. The formulation of the method is conducted on the basis of the energy principle during the interface motion. The computations extend earlier models by accounting in detail for the effects of grain-boundary energy, surface energy and chemical potential difference. The eventual shape of the plate-like double-crystal grain depends on both the initial β and the thermal grooving angle Ψ. For a given β, a critical Ψcexists. When Ψ>Ψc, the eventual shape is one made of two sphere segments with a thermal groove. When Ψ≤Ψc, grain splitting along the grain boundary occurs, and the splitting segments evolve into two spheres, respectively. Both the spheroidization time and the splitting time increase with Ψ and β increasing. The volume shrinkage rate decreases with increasing Ψ.

The interface migration in shear-banded micellar solutions

2017 ◽  
Vol 56 (9) ◽  
pp. 765-778 ◽  
Author(s):  
Juan Paulo Garcia-Sandoval ◽  
Fernando Bautista ◽  
Jorge Emilio Puig ◽  
Octavio Manero
Keyword(s):  
Micellar Solutions ◽  
Interface Migration
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