Mechanical properties of titanium diboride films under the impact of picosecond shock loads

In this paper, we studied the shock wave phenomena generated by laser pulses in a film sample of titanium diboride with a thickness of $1\,\mu$m by interferometry in the picosecond range. The splitting of the shock wave into elastic and plastic waves with a compression pressure of $43$ GPa behind the front of the elastic precursor is recorded. The values of shear and bulk strength at a deformation rate of $8 \times 10^8$ s$^{-1}$ are determined.