Original paper

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

Volume: 11, Issue: 1
Published: Jul 3, 2020
Abstract
Earth core is composed of iron (Fe) alloyed with light elements, e.g., silicon (Si). Its thermal conductivity critically affects Earth thermal structure, evolution, and dynamics, as it controls the magnitude of thermal and compositional sources required to sustain a geodynamo over Earth history. Here we directly measured thermal conductivities of solid Fe and Fe-Si alloys up to 144 GPa and 3300 K. 15 at% Si alloyed in Fe substantially reduces...
Paper Details
Title
Low thermal conductivity of iron-silicon alloys at Earth’s core conditions with implications for the geodynamo
Published Date
Jul 3, 2020
Volume
11
Issue
1
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