A cubic single crystal is to be loaded in tension along the [010] direction in such a way as to produce a given axial elastic strain. We wish to have the contraction in the [001] direction be as small as possible for that axial strain. Which of the following cubic crystals will show the smallest contraction?

??

Element S..* 15.7 22.9 23.3 Al Ag Au Cr Cu Fe K 823 ts of 102 m/N or TPa. 3.00 14.98 7.60 Siz -5.68 -9.83 -10.65 -0.43 -6.29 -2.87 -370 Sa 35.1 21.7 23.8 9.92 13.26 8.92 380