Solution-Estimate a thermal velocity for an iron atom

Estimate a thermal velocity for an iron atom

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Reference no: EM131550514

Question: (a) Estimate a thermal velocity for an iron atom at its melting temperature. Suppose an iron atom in the liquid must travel a distance of 1 Å to reach a suitable site on a growing crystal surface. If the growth rate of the solid into the liquid is 1 cm/min, what fraction of iron atoms attach to the surface sites?

(b) Why is this fraction so low? (Hint: You may challenge the assumption of a 1 Å travel.) Why is this fraction even lower if the undercooling is smaller, and the growth rate is slower?

Reference no: EM131550514

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Estimate a thermal velocity for an iron atom

Reference no: EM131550514

Reference no: EM131550514

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