Thermal Probes of Nanoparticle Interfaces: Thermodiffusion and Thermal Conductivity of Nanoparticle Suspensions

Putnam, Shawn Arthur

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Title:	Thermal Probes of Nanoparticle Interfaces: Thermodiffusion and Thermal Conductivity of Nanoparticle Suspensions
Author(s):	Putnam, Shawn Arthur
Doctoral Committee Chair(s):	Cahill, David G.
Department / Program:	Materials Science and Engineering
Discipline:	Materials Science and Engineering
Degree Granting Institution:	University of Illinois at Urbana-Champaign
Degree:	Ph.D.
Genre:	Dissertation
Subject(s):	Engineering, Materials Science
Abstract:	At T < 20°C, all nanoparticles studied in nearly pure water were found to migrate to the hot regions of the fluid; i.e., DT 50°C, the thermodiffusion coefficients were positive with a value consistent with the predictions of a theoretical model originally proposed by B. Derjaguin that is based on the enthalpy changes due to polarization of water molecules in the double-layer. At high temperatures, DT was also independent of particle size.
Issue Date:	2007
Type:	Text
Language:	English
Description:	209 p. Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2007.
URI:	http://hdl.handle.net/2142/82814
Other Identifier(s):	(MiAaPQ)AAI3301212
Date Available in IDEALS:	2015-09-25
Date Deposited:	2007