Table 3 Data on the critical layer width for high-density HEs³⁶ at the grain size of \(\langle {d^{\prime\prime} }_{1}\rangle =100\) μm and \(\langle {d^{\prime\prime} }_{2}\rangle =3.5\) μm.

HE

ρ, g/cm³

\({{\boldsymbol{h}}}_{{\boldsymbol{c}}{\boldsymbol{r}}}({{\boldsymbol{d}}^{\prime\prime} }_{{\boldsymbol{1}}})/{{\boldsymbol{h}}}_{{\boldsymbol{c}}{\boldsymbol{r}}}({{\boldsymbol{d}}^{\prime\prime} }_{{\boldsymbol{2}}})\), [h_cr] = mm