Table 2.
Aggregate elastic moduli of MgO as functions of pressure
| Ref. | K0S, GPa | K′0S | K″0S, GPa−1 | G0S, GPa | G′0S | G″0S, GPa−1 |
|---|---|---|---|---|---|---|
| This study* (0–55 GPa) | 162.5(7) | 3.99(3) | — | 130.4(1.7) | 2.85(9) | −0.084(6) |
| Ref. 25* (0–18.6 GPa) | 163.2(1.0) | 4.0(1) | −0.04(2) | 130.2(1.0) | 2.4(1) | −0.04(2) |
| Ref. 8† (0–3 GPa) | 162.5(2) | 4.13(9) | −0.058(66) | — | — | — |
| Ref. 14† (0–37 GPa) | 162.0(1.0) | 4.08(9) | −0.036(16) | 130.9(5) | 2.56(6) | −0.030(10) |
| Ref. 37* | 159.7 | 4.26 | −0.026 | 121.5 | 2.18 | −0.034 |
*
Elastic moduli were fit to third- or fourth-order Birch–Murnaghan equations of state.
†
Elastic moduli were fit to the polynomial Mij(P) = Mij0 + M′ij0P + 0.5M″ij0P2.