Table 2 Recent results on the change in electrical resistivity Δρ of Fe and Fe–Si alloys upon melting.

From: Low thermal conductivity of iron-silicon alloys at Earth’s core conditions with implications for the geodynamo

Composition

P (GPa)

Δρ (μ Ω cm)

Method

Reference

Fe

329

~+10

C

18

Fe

51

~+20–30

ERM

21

Fe

12

~+10

ERM

35

Fe

5

~+20

ERM

37

Fe0.91Si0.09

9

~+5

ERM

36

Fe0.82Si0.18

10

~–50

ERM

38

Fe0.82Si0.1O0.08

329

~+15

C

18

  1. Method: C calculation, ERM electrical resistivity measurement.
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