Metallic FCC-BCC nanolayers, such as Cu/Nb, have received wide attention due to their extraordinary mechanical properties as well as the unique self-healing capacities due to the interface characteristics. Most recently, the materials have also been shown to exhibit significant and tunable interfacial sliding mechanisms (based on defect structures in the interface). The significant interfacial sliding is all along while maintaining full contact between the layers, and thus one could expect negligible resistance increase upon straining, which would be attractive for stretchable metallic conductor technology. The interfacial sliding has been modeled with some combination of diffusional and displacive mechanisms the extreme extents of which are afforded by the nanoscale layering in the materials. The exact mechanisms continue to be fully investigated with in situ mechanical testing allowing the direct observation of the interfacial sliding events inside an SEM (Scanning Electron Microscopy), in situ synchrotron X-ray nanodiffraction (in ESRF/European Synchrotron Radiation Facility), as well as many other advanced characterization techniques

Metallic Nanolayers, Technology, Mechanism

• Prof. Fergyanto E. Gunawan, Dr. Eng

• Christian Harito, S.T., Ph.D

• Dr. Arief Suriadi Budiman, ST., MS