About this Abstract |
| Meeting |
MS&T24: Materials Science & Technology
|
| Symposium
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Processing and Performance of Materials Using Microwaves, Electric and Magnetic Fields, Ultrasound, Lasers, and Mechanical Work – Rustum Roy Symposium
|
| Presentation Title |
High-Intensity Electric Nano Pulsing |
| Author(s) |
Eugene A. Olevsky, Elisa Torresani, Xu Wenwu, Andrii Maximenko, Runjian Jiang |
| On-Site Speaker (Planned) |
Eugene A. Olevsky |
| Abstract Scope |
A novel field-assisted processing of materials by the electro-nano-pulsing (ENP) method has been developed and a device capable to apply electric pulse with ultra-high intensity (~ 1011 A/m2) and ultra-short duration (< 1 μs) has been constructed.
This technology activates non-equilibrium structural evolutions at nanometer spatial scale and nanosecond temporal scale impacting grain boundaries in polycrystalline materials. Due to large difference in electrical resistivity present between the exterior and the interior of the grains a localized Joule heating can be achieved.
Other effects involve the localized modification of material structure at micro-nano structure level without significant change of the grain size. Ni-chrome wires processed by ENP exhibit unique properties and structure. |