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Linking The Structure And Mechanical Behavior Of Nanoporous Gold, Ye Sun
Linking The Structure And Mechanical Behavior Of Nanoporous Gold, Ye Sun
University of Kentucky Doctoral Dissertations
The structure of nanoporous gold (np-Au) provides a very limited volume for deformation to occur, and thus offers an opportunity to study the role of defects such as dislocations in nanoscale metal volumes. A practical goal is to understand mechanical properties of np-Au so that it can be can produced in stable form, for use in applications that require some mechanical integrity. Bulk and thin film np-Au have been fabricated and studied here.
Bulk np-Au was prepared by electrochemically dealloying Au-Ag alloys with 25 and 30 at.% Au. In the lower Au content material, cracks always formed during dealloying. When …