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The (hkl) Miller indices and observed and calculated interplanar spacing’s (dhkl) for x-ray diffraction pattern for body-centered (bcc) tungsten at the highest pressure.
| hkl | dhkl (Observed) Å | dhkl (Calculated) Å |
|---|---|---|
| 110 | 1.8932 | 1.8851 |
| 200 | 1.3298 | 1.3329 |
| 211 | 1.0881 | 1.0883 |
The observed lattice parameter of tungsten at the highest pressure is a = 2.6659 ± 0015 Å. The calculated pressure is in the 423–516 GPa range as described in the text.
