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limited by some maximum width; that is, the stacking fault energy reaches a minimum value. With regard to the temperature dependence, we must recognize the existence of some temperature above which the binding energy of the solute atoms to the fault is smaller than the energy of thermal motion;
thus, the segregation induced widening could be reversed. In seeking to verify this rate equation (experimentally, the difficulty of direct observation of faults in their early stages of growth by transmission electron microscopy must be overcome. A material with a low intrinsic fault energy should be used so that the minimum observable width of about 100 A(17) would be the initial width prior to significant segregation.
📜 SIMILAR VOLUMES
Now wvaph = -Pwv2h so that (aAG/ap)T = AV and any pressure-variation of AF (through elastic moduli) is irrelevant. A lattice diffusivity increasing with increasing pressure implies a negative activation volume AV. However, it is not certain that the simple effect on lattice diffusion was measured
The authors wish to thank the discussers for their inputs on our work Sivapragasam et al. (2008). The discussion is clarified as below: The authors agree that linear genetic programming has been employed in the study, though the description of genetic programming given in Sivapragasam et al. ( 2008