Troy W Barbee

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It is known that the room-temperature plastic deformation of bulk metallic glasses is compromised by strain softening and shear localization, resulting in near-zero tensile ductility. The incorporation of metallic glasses into engineering materials, therefore, is often accompanied by complete brittleness or an apparent loss of useful tensile ductility. Here(More)
Coherent twin boundaries (CTBs) are widely described, both theoretically and experimentally, as perfect interfaces that play a significant role in a variety of materials. Although the ability of CTBs in strengthening, maintaining the ductility and minimizing the electron scattering is well documented, most of our understanding of the origin of these(More)
We present the first results from picosecond interferometry of dense laser-produced plasmas using a soft x-ray laser. The picosecond duration and short wavelength of the 14.7 nm Ni-like Pd laser mitigates effects associated with motion blurring and refraction through millimeter-scale plasmas. This enables direct measurement of the electron-density profile(More)
  • Franz A Weber, Luiz B Da, Silva, Troy W Barbee, Dino Ciarlo, Michael Mantler
  • 1998
SUMMARY This paper discusses the results obtained from experiments using specially prepared carbon grids on top of metallic substrates and subsequent treatment of the data by means of a theoretical approach which is based on the conventional fundamental parameter theory but also includes secondary excitation effects by photoelectrons. Carbon gridlines with(More)
  • Franz A Weber, Luiz B Da, Silva, Troy W Barbee, Dino Ciarlo, Michael Mantler
  • 1998
SUMMARY This paper discusses the results obtained from experiments using specially prepared carbon grids on top of metallic substrates and subsequent treatment of the data by means of a theoretical approach which is based on the conventional fundamental parameter theory but also includes secondary excitation effects by photoelectrons. Carbon gridlines with(More)
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