Calculate the number of vacancies/cm³ are expected in copper at 831 °C. The energy for vacancy formation is 19910 cal/mol. Cu properties are: 29, FCC, 3.6151Ả, 63.54 g/mol, 8.93 g/cm³. Answer is a1018 vacancies/cm³

Calculate the number of vacancies/cm³ are expected in copper at 831 °C. The energy for vacancy formation is 19910 cal/mol. Cu properties are: 29, FCC, 3.6151Ả, 63.54 g/mol, 8.93 g/cm³. Answer is a1018 vacancies/cm³

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Concept explainers

Solidification of metals

The term solidification indicates the conversion of material from the state of liquid to the state of solid. The solid-state is more compact and rigid than liquid, and the solidification indicates the transformation of material from a random state to a more compact and crystalline form. The point at which dendrite formation in liquid starts taking place is referred to as the solidification point.

Question

Calculate the number of vacancies/cm³ are
expected in copper at 831 °C. The energy for
vacancy formation is 19910 cal/mol. Cu
properties are: 29, FCC, 3.6151Ả,
63.54 g/mol, 8.93 g/cm³.
Answer is
1018 yаcancies/ст3

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