Example Quiz 1 - 2007

# Example Quiz 1 - 2007 - MAT33 First Quiz Engineering...

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MAT33 Engineering Materials and Processes Fall 2007 First Quiz Monday 1 st October 2007, 11.10-12.00 NAME ……………………………………………………. . Section Professor Jain Th 12.10pm .……. Q1………. . Professor Rickman Th 1.10pm ……. . Q2………. . Professor Cargill Fr 8.10am ..…… Q3………. . Professor Vinci Fr 9.10am ……. . Q4………. . Professor Rickman Fr 10.10am ……. . Q5………. . Total………. ..% Closed book exam. Please write your final answers in the blanks provided, where appropriate. Partial credit for questions will only be considered if your workings are shown. Calculator policy: I have cleared my calculator’s memory prior to taking this exam. Signature ________________ Useful equations ρ = nA V c N A N v = N exp - Q v kT C 1 ' = C 1 A 2 C 1 A 2 + C 2 A 1 × 100 n w = M w m N d r = %c = ρ c ρ s a ( 29 ρ s ρ c a ( 29 × 100 % I = 1 - exp - 0 . 25 ( 29 χ A B ( 29 2 { } [ ] × 100 Useful constants Avagadro’s number, N A 6.023 x 10 23 atoms/mol Boltzmann’s constant, k 8.62 x 10 -5 eV/atom-K 1.38 x 10 -23 J/atom-K Gas constant, R 8.31 J/mol-K 1

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Metals and Alloys [30 points] 1a.) Sketch the conventional unit cell for the face centered cubic (FCC) structure b.) The number density ( i.e. number of atoms per unit volume) for the FCC structure in terms of the lattice parameter a is: (circle one) i.) 1/ a 3 ii.) 2/ a 3 iii) 4/ a 3 iv.) 8/ a 3 c.) The most densely packed planes ( i.e. having the highest planar atomic density) in the FCC structure belong to the family (circle one) i.) {100} ii.) {110}
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## This note was uploaded on 02/10/2009 for the course MAT 33 taught by Professor Keith during the Spring '07 term at Lehigh University .

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Example Quiz 1 - 2007 - MAT33 First Quiz Engineering...

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