Deformability of ultrahigh strength 5nm Cu∕Nb nanolayered composites

• DOI: 10.1063/1.2938921
• Publication Date: 2008-06-09T22:23:21Z
• Authors: N. A. Mara; D. Bhattacharyya; P. Dickerson; R. G. Hoagland; A. Misra
• Keywords: 02 engineering and technology; 0210 nano-technology

In this work, micropillar compression testing has been used to obtain stress-strain curves for sputter-deposited Cu–Nb nanolaminate composites with nominal bilayer thickness of 10nm. In addition to the extremely high flow strength of 2.4GPa, the 5nm Cu∕5nm Nb nanolaminate exhibits significant ductility, in excess of 25% true strain.