|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||Mechanical Behavior at the Nanoscale III
||Mechanical Behavior of Nanoporous Gold and Silicon
||Nicolas J. Briot, Tyler Vanover, John Balk
|On-Site Speaker (Planned)
||Nicolas J. Briot
Studies have demonstrated the possibilities that nanoporous (np) materials offer in various fields, such as catalysis, sensing and energy storage. Their mechanical behavior has yet to be fully understood, hindering the development of applications.
The mechanical behavior of np-Au and np-Si has been investigated using various techniques such as tension, compression, nanoindentation, and micropillar compression in the TEM. The mechanical properties of both materials have been determined for different ligament sizes. For np-Si, samples with various cell morphologies have been tested, as well as amorphous and crystalline specimens. The influence of the cell morphology on the mechanical behavior will be discussed in light of these results.
Based on the np-Au results, an updated scaling relation for the yield strength will be proposed. Despite its brittle nature, silicon in its np form exhibited ductility and recoverable deformation. The ability to deform without fracture presents exciting opportunities in the field of batteries.
||Planned: A print-only volume