Osmium metal studied under high pressure and nonhydrostatic stress.

  title={Osmium metal studied under high pressure and nonhydrostatic stress.},
  author={Michelle B. Weinberger and Sarah H. Tolbert and Abby Kavner},
  journal={Physical review letters},
  volume={100 4},
Interest in osmium as an ultra-incompressible material and as an analog for the behavior of iron at high pressure has inspired recent studies of its mechanical properties. We have measured elastic and plastic deformation of Os metal at high pressures using in situ high pressure x-ray diffraction in the radial geometry. We show that Os has the highest yield strength observed for any pure metal, supporting up to 10 GPa at a pressure of 26 GPa. Furthermore, our data indicate changes in the… 

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