|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Nanocomposites V: Structure-Property Relationships in Nanostructured Materials
||Mechanical Behavior of FCC Cu/FCC Co and FCC Cu/HCP Co Nanocomposite Films
||Rohit Berlia, Jagannathan Rajagopalan
|On-Site Speaker (Planned)
The mechanical behavior of nanostructured metallic multilayers has been extensively investigated in recent years because of their superior mechanical properties. Much of this work has focused on FCC/FCC (e.g, Cu/Ni) or FCC/BCC systems (e.g, Cu/Nb) with fewer studies focusing on FCC/HCP (e.g, Cu/Zr) multilayers. In this study, we investigated the mechanical behavior of sputter-deposited Cu/Co nanocomposite films with two different crystal/interface structures. By varying the deposition conditions, we synthesized FCC Cu/FCC Co and FCC Cu/HCP Co nanocomposite films with layer thickness around 10 nm. Both Cu and Co exhibited a strong (100) texture in FCC/FCC films, whereas Cu with (111) texture and Co with (0001) texture formed in FCC/HCP films. Freestanding film samples were co-fabricated with MEMS stages and tensile loading was performed parallel to the Cu/Co interface. FCC/FCC films showed lower strength than FCC/HCP films, but more plasticity. Both films showed a high modulus of resilience exceeding 5 MPa.
||Planned: Supplemental Proceedings volume