| The effects of pressure and temperature on the yield strength of tantalum and the effects of pressure on the yield strength of rhenium were investigated using ruby fluorescence. A new Raman system with a motorized stage and near diffraction limit was built to map 2-dimensionally, the pressures inside of a diamond anvil cell. The 2-dimensional data is used to create contour maps and surface plots of the pressures and calculate the pressure gradients induced in the samples. Using the Birch-Murnaghan equation of state, the final sample thickness, and the pressure gradients, the yield strength as a function of temperature and pressure are calculated. |
