Publications by authors named "J A Gigax"

Article Synopsis
  • The study focused on how adding 1 wt. lead (Pb) affects the plastic deformation and microstructure of pure copper (Cu) and Cu alloys, particularly at grain boundaries where Pb forms precipitates.
  • Various advanced techniques were used, including neutron diffraction and electron microscopy, to examine the behavior of these materials under stress at different scales.
  • Results showed that while the overall deformation responses were similar for both materials, the Cu-1Pb alloy had a higher dislocation density and the presence of lead significantly influenced local deformation, providing important insights for improving structural materials in engineering.
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The advent of nanotechnology has motivated a revolution in the development of miniaturized sensors. Such sensors can be used for radiation detection, temperature sensing, radio-frequency sensing, strain sensing, and more. At the nanoscale, integrating the materials of interest into sensing platforms can be a common issue.

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Amorphous metallic glasses (MGs) convert to crystalline solids upon annealing at a high temperature. Such a phase change, however, does not occur with the local melting caused by damage cascades introduced by ion irradiation, although the resulting thermal spikes can reach temperatures > 1000 K. This is because the quenching rate of the local melting zone is several orders of magnitude higher than the critical cooling rate for MG formation.

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In the quest of new materials that can withstand severe irradiation and mechanical extremes for advanced applications (e.g. fission & fusion reactors, space applications, etc.

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