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Thermal Diffusivity Measurement of Thin Thermal-sprayed Coatings Open Access


Other title
two-layered conduction
thermal diffusivity
thermal-sprayed coatings
Type of item
Degree grantor
University of Alberta
Author or creator
Duan, Linlin
Supervisor and department
McDonald, André (Department of Mechanical Engineering)
Examining committee member and department
Mendez, Patricio (Department of Chemical and Materials Engineering)
Tang, Tian (Department of Mechanical Engineering)
Department of Mechanical Engineering

Date accepted
Graduation date
Master of Science
Degree level
This thesis presents a method to determine the thermal diffusivity of both single-layered and two-layered coated samples. The flame spraying, air plasma spraying, and cold spraying techniques were used to fabricate the two-layered samples. Mathematical models were developed for single-layered and two-layered conduction heat transfer problems. Experiments were designed and tests were conducted to ensure that the mathematical models could give good prediction with the correct input of thermal diffusivity value. Experiments were conducted on samples, including single-layered samples of copper, aluminum, PMMA, and Pyrex and two-layered samples of TiO2 coating on copper substrate or low carbon steel substrate, YSZ coating on low carbon steel substrate, and nano-structured TiO2 on Pyrex substrate. The thermal diffusivity results of all the materials showed good repeatability and for low-thermal diffusivity materials, the test results agreed with the referenced value.
License granted by Linlin Duan ( on 2011-09-22T20:38:22Z (GMT): Permission is hereby granted to the University of Alberta Libraries to reproduce single copies of this thesis and to lend or sell such copies for private, scholarly or scientific research purposes only. Where the thesis is converted to, or otherwise made available in digital form, the University of Alberta will advise potential users of the thesis of the above terms. The author reserves all other publication and other rights in association with the copyright in the thesis, and except as herein provided, neither the thesis nor any substantial portion thereof may be printed or otherwise reproduced in any material form whatsoever without the author's prior written permission.
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