Deformability of ultrahigh strength 5 nm Cu/Nb nanolayered composites

N. A. Mara, D. Bhattacharyya, P. Dickerson, R. G. Hoagland, A. Misra

Research output: Contribution to journalArticlepeer-review

235 Scopus citations


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 10 nm. In addition to the extremely high flow strength of 2.4 GPa, the 5 nm Cu/5 nm Nb nanolaminate exhibits significant ductility, in excess of 25% true strain.

Original languageEnglish (US)
Article number231901
JournalApplied Physics Letters
Issue number23
StatePublished - 2008

Bibliographical note

Funding Information:
The authors gratefully acknowledge fruitful discussions with Professor John P. Hirth, Michael D. Uchic, Michael J. Demkowicz, and J. Greg Swadener. This research is supported by the Department of Energy, Office of Science, Office of Basic Energy Sciences.


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