When 10:30 AM - 11:30 AM Feb 06, 2015
Where 1670 Beyster Building
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In Situ and Environmental High Resolution Electron Microscopy of Material Reactions


Robert Sinclair
Stanford University, Department of Materials Science and Engineering

There has been a steady increase in the application of in situ examination of material reactions over the last few years, as described in reference [1]. Our own work has largely involved following structural changes upon heating at controlled elevated temperatures, but other externally applied stimuli are equally revealing (e.g. stress, electrical potential, cooling etc.). However there has been a noticeable increase in the last couple of years or so which has arisen from the additional capability of controlled local environment within the TEM, either gaseous or liquid. These recent developments will be described and new results will be presented on the oxidation of carbon nanotubes [2] and the hydrogenation of metals for hydrogen storage. [3]

References

[1] Sinclair, R., “In Situ High-Resolution Transmission Electron Microscopy of Material Reactions”, MRS Bull., 38, 1065-1071, 2013

[2] Koh, A.L., Gidcumb E., Zhou, O., and Sinclair, R., “Observations of Carbon Nanotube Oxidation in an Aberration-Corrected Environmental Transmission Electron Microscope”, ACS Nano, 7, 2566-2572, 2013

[3] Chung, C.J., Lee, S.C., Groves, J.R., Brower, E.N., Sinclair, R., and Clemens, B.M., “Interfacial Alloy Hydride Destabilization in Mg/Pd Thin Films”, Phys. Rev. Lett, 108, 106102 1-4, 2012

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