Part 1What is a, the unit cell length, in nm, for aluminum?a =Save for LaterPart 2nmWhat is the magnitude of the Burgers vector, [b], in nm, for Al?|b|= iSave for LaternmAttempts: 0 of 3 usedAttempts: 0 of 3 usedSubmit AnswerSubmit Answer Equations 7.1a and 7.1b, expressions for Burgers vectors for FCC and BCC crystal structures, are of the form=(uvw)b =where a is the unit cell edge length. Also, since the magnitudes of these Burgers vectors may be determined from the followingequation:|b| = = 2 (u² + v² + w²) ¹/²determine values of [b] for aluminum and chromium. You may want to consult Table 3.1.

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Part 1 What is a, the unit cell length, in nm, for aluminum? a = i Save for Later Part 2 nm What is the magnitude of the Burgers vector, [b], in nm, for Al? |b|= i Save for Later nm Attempts: 0 of 3 used Attempts: 0 of 3 used Submit Answer Submit Answer

Part 1 What is a, the unit cell length, in nm, for aluminum? a = i Save for Later Part 2 nm What is the magnitude of the Burgers vector, [b], in nm, for Al? |b|= i Save for Later nm Attempts: 0 of 3 used Attempts: 0 of 3 used Submit Answer Submit Answer

Physical Chemistry

2nd Edition

ISBN:9781133958437

Author:Ball, David W. (david Warren), BAER, Tomas

Publisher:Ball, David W. (david Warren), BAER, Tomas

Chapter21: The Solid State: Crystals

Section: Chapter Questions

Problem 21.47E

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Question

Part 1
What is a, the unit cell length, in nm, for aluminum?
a =
Save for Later
Part 2
nm
What is the magnitude of the Burgers vector, [b], in nm, for Al?
|b|= i
Save for Later
nm
Attempts: 0 of 3 used
Attempts: 0 of 3 used
Submit Answer
Submit Answer

Equations 7.1a and 7.1b, expressions for Burgers vectors for FCC and BCC crystal structures, are of the form
=(uvw)
b =
where a is the unit cell edge length. Also, since the magnitudes of these Burgers vectors may be determined from the following
equation:
|b| = = 2 (u² + v² + w²) ¹/²
determine values of [b] for aluminum and chromium. You may want to consult Table 3.1.

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