HPCAT

at the Advanced Photon Source

Calibration and validation of the foundation for a multiphase strength model for tin

Figure - (a) Compressional modulus, C_11 ⁠, bulk modulus (B), and shear modulus (G) as a function of temperature at ambient pressure. (b) The pressure dependence of the compressional modulus, C_11 and G up to 5 GPa at ambient temperature.
Figure - (a) Compressional modulus, C_11 ⁠, bulk modulus (B), and shear modulus (G) as a function of temperature at ambient pressure. (b) The pressure dependence of the compressional modulus, C_11 and G up to 5 GPa at ambient temperature.

Researchers from Los Alamos National Laboratory recently reported on the development and validation of a multi-phase strength model for tin. This work supported a multi-year Tri-NNSA Lab initiative focused on the development of multi-phase strength models for metals and leveraged a wide range of experimental techniques with platforms spanning the full range from static to shock compression. Essential inputs to strength models are accurate and precise values for the shear modulus and its pressure derivative. In this work, these parameters were determined to  ~5 GPa using sound speed measurements and X-ray diffraction performed at HPCAT beamline 16 BM-B.

For more information, see: Thao Nguyen, Leonid Burakovsky, Saryu J. Fensin, Darby J. Luscher, Michael B. Prime, Carl Cady, George T. Gray III, David R. Jones, Daniel T. Martinez, Richard L. Rowland, Sky Sjue, Blake T. Sturtevant, James A. Valdez, “Calibration and validation of the foundation for a multiphase strength model for tin,” Journal of Applied Physics, 135, 225105 (2024), doi:10.1063/5.0207405.

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