Impediments to Conservative Interface Motion

Segregated solute concentration profile c(x) across boundary as a function of increasing boundary velocity v (the x axis is perpendicular to the boundary). cXL is the solute concentration in the adjoining crystals, (b) Boundary velocity vs. pressure, P, on boundary as a function of increasing cXL. (c) In v vs. 1/T as a function of increasing cXL. (d) In v vs. In cXL as a function of increasing P. From Cahn [10], 

The net restraining force along y exerted on the interface by the particle (i.e., the negative of the force exerted by the interface on the particle) is 

The maximum force, Fmax, occurs when dF/d p = 0, corresponding to p = ot/2. Applying this condition to Eq. 13.10, the maximum force is 

6 Observations of Thermally Activated Grain-Boundary Motion 

5Detailed analyses of these processes are given by Sutton and Balluffl [2], 

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