Phillip T. Sprunger
Scientific Director of CAMD, Professor of Physics, Louisiana State University, Baton Rouge.
Experimental condensed matter physics; surface/interfacial electronic, structural, and chemical phenomena.
Electron- and photon-based spectroscopies and scattering; synchrotron-based X-ray and VUV absorption/photoemission;thin-film, surface, nano metal alloys and oxides.
PhD in Physics from University of Pennsylvania (1993); postdoc in nanomaterial at University of Aarhus, Denmark (1993-1995).
One research thrust of our group supported by CIMM focuses on the synthesis and characterization of high-entropy alloys (HEA) such as CrCoFeNi and CrCoFeNiCu. Specifically, we have used a number of experimental probes to elucidate the microstructural, electronic, and chemical bulk and surface properties.We have found the although the surface atomic composition is equivalent to the bulk, Ni (and Co) are relativelyinertto oxidation. This yields insight intocorrosion resistance of HEAs. In addition, we are currently installing an in-situ x-ray scattering system to monitor details of laser-melt/solidification processes of alloy powders used in advanced manufacturing.