About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
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Symposium
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Mechanical Response of Materials Investigated through Novel In-situ Experiments and Modeling
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Presentation Title |
Wear of UNCD Studied by In-situ TEM Tribometry |
Author(s) |
Rodrigo Bernal |
On-Site Speaker (Planned) |
Rodrigo Bernal |
Abstract Scope |
Nanoscale friction and wear are extremely complex processes. As a result of this complexity many questions remain in the field. In-situ experiments are uniquely capable to answer these questions by allowing visualization of processes that are generally obscured and can only be studied by simulations. In this talk, we will discuss the visualization and quantification of wear of ultrananocrystalline diamond (UNCD) nanoscale asperities in sliding contact using in-situ transmission electron microscope (TEM) sliding experiments. Two sharp tips made of UNCD are brought into contact, enabled by a indenter TEM holder. By comparing high-resolution TEM images obtained before and after a series of sliding intervals, we quantify the evolution of wear and visualize the morphological and crystal-structure changes as wear progresses. |
Proceedings Inclusion? |
Planned: |
Keywords |
Nanotechnology, Mechanical Properties, Characterization |