Schaffer/The Science and Design of Engineering Materials

Page Location: Error

Ex. 2.4-4 b) and d): Table of % ionic character is not in Appendix A, but at end of Appendix B.
Line 2- same as above à Appendix B

27 Periodic table: transition elements should be Group B, and right side should be Group A

4^th line from bottom: the individual bond strength doesn’t change, but the attractive forces between molecules increases due to more secondary interactions
Problem 45: ionomer should be molecular ion

28 2^nd paragraph, 1^st sentence (add a word): …..a reaction occurs spontaneously only if….

Fig. 3.3-4(b): should only be 3 lattice points in the middle layer of the HCP unit cell
The volume of a HCP unit cell is 3X(sqrt(3)/2)a₀²c. The volume given is for the primitive rhomb. unit cell, of which there are 3 per "big" HCP unit cell. This error propagated into the solutions manual for all of the questions dealing with the HCP structure.

99 Fig. 3.12-2: the angle q is in the wrong place. Should be at top angle, and it would be helpful to also show 2q between the detector and the lattice plane

103 rule# 1. missing reflections should be (h² + k² + l²) instead of (h + k + l)

770 Appendix C: r(Mg²⁺) = 0.078nm should be 0.066nm; and r(Ca²⁺)=0.106nm should be 0.099nm (the values used in the solution manual, and listed in other sources).

790 The solution for problem #23 was solved using wt%, but question gives an atomic %. The answer when solving with the correct units is J=2.01x10¹⁰ atoms/cm²-s.

CD-ROM Chapter 3, crystal plane F (221) should be (331)

CD-ROM Chapter 3- Polyethylene: the H atoms should be ^ to the chain axis

CD-ROM Chapter 3- NaCl4 illustration shows atoms touching along <110> directions, they should only be touching along the <100> directions, as in the previous NaCl3 example

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