Nature and Dynamics of Earth and Planetary Cores From High-Pressure Properties of Iron -Rich Alloys
Chen, Bin
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https://hdl.handle.net/2142/86541
Description
Title
Nature and Dynamics of Earth and Planetary Cores From High-Pressure Properties of Iron -Rich Alloys
Author(s)
Chen, Bin
Issue Date
2009
Doctoral Committee Chair(s)
Li, Jie
Department of Study
Geology
Discipline
Geology
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
Ph.D.
Degree Level
Dissertation
Keyword(s)
Geophysics
Language
eng
Abstract
To measure the thermal conductivity of compressed materials, I employed the time-domain thermoreflectance (TDTR) method combining with the diamond anvil cell technique (Chapter 5). I report high-pressure thermal conductivity data of water and ice phases up to 11 GPa and at 300 K. The thermal conductivity of Ice VII increases by more than a factor of ∼4 from 3.3 to 11 GPa. The data help constrain the internal structure and thermal evolution of large icy satellites such as Ganymede and Callisto. The successful TDTR measurements at high pressures make a solid step towards obtaining the thermal transport properties of iron and iron-rich alloys under extreme conditions.
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