Nature and Dynamics of Earth and Planetary Cores From High-Pressure Properties of Iron -Rich Alloys

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.

Name thesis:degree_name

Ph.D.

Level thesis:degree_level

Dissertation

Discipline thesis:degree_discipline

Geology

Grantor

University of Illinois at Urbana-Champaign

Year dc:date

2015

Author dc:creator

• Chen, Bin

Contributors dc:contributor

• Li, Jie

• Geophysics

Language dc:language

eng

Identifier

(MiAaPQ)AAI3362746

OAI identifier oai:identifier

oai:www.ideals.illinois.edu:2142/86541