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EL, M= 0.83 eV, ED,M= 0.71 eV, ED;B= 0.35 eV, ET,B= 0.65 eV.
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Calculated changes in the concentration of single- double- and triple vacancies (cL, cD and cT) and the total concentration c = cL + 2cD0 + 3cT in Au during quenching from 800 oC with dT/dt = 3 · 104 K/s (after Furuka). | ||
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The colored dashed lines assume a dislocation density of zero (i.e. no sinks, N = 0), whereas the solid lines assume a dislocation density of N = 5 · 107. | ||
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Without sinks, the total concentration c of vacancies does not change is required (since no clusters with more that 3 vacancies are allowed). The concentration of single vacancies, however, changes considerably despite the large cooling rate. | ||
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The presence of sinks does change the picture somewhat, but not dramatically as we would expect for large cooling rates - there simply is not enough time to migrate to a sink. | ||
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For the migration energies (Ex,M) and the binding energies Ex;B
the following values were used: EL, M= 0.83 eV, ED,M= 0.71 eV, ED;B= 0.35 eV, ET,B= 0.65 eV. | ||
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See also chapter 10.2 in the "Physikalische Metallkunde" of P. Haasen | ||
2.2.2 Local and Global Equilibrium
4.2.1 Point Defects in Non-Equilibrium
© H. Föll (Defects - Script)
With frame