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3 years ago

15

Compare the temperature dependence of Nabarro-Herring and Coble creep. Which is more temperature-sensitive

1 answer:

kicyunya [14]3 years ago

7 0

Lower temperatures favor Coble creep and higher temperatures favor Nabbaro–Herring creep because the activation energy for vacancy diffusion within the lattice is typically larger than that along the grain boundaries, thus lattice diffusion slows down relative to grain boundary diffusion with decreasing temperature.

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