This study establishes an image-based approach to determine the thermal conductivity of a metal material as a function of temperature using isotherm movement. The thermal conductivity within a range of temperature can be derived from a combined experimental and theoretical study based on Wiedemann–Franz law. A cubic relation between heating time and distance from heat source has been observed, proved, and used to determine the thermal conductivity at different temperature. The temporal and spatial information provided by infrared imaging allow continuous temperature dependence of thermal conductivity to be derived with high accuracy. This method has the potential to determine thermal conductivities of multiple samples at high throughput, and to derive thermal conductivity along different crystal orientation in a thermally anisotropic system.
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Image-Based Rapid Measurements of Temperature-Dependent Thermal Conductivities
Sichao Hou,
Sichao Hou
Department of Chemical Engineering,
Northeastern University,
Boston, MA 02115
Northeastern University,
Boston, MA 02115
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Ming Su
Ming Su
Department of Chemical Engineering,
Northeastern University,
Boston, MA 02115
e-mail: m.su@northeastern.edu
Northeastern University,
Boston, MA 02115
e-mail: m.su@northeastern.edu
Search for other works by this author on:
Sichao Hou
Department of Chemical Engineering,
Northeastern University,
Boston, MA 02115
Northeastern University,
Boston, MA 02115
Ming Su
Department of Chemical Engineering,
Northeastern University,
Boston, MA 02115
e-mail: m.su@northeastern.edu
Northeastern University,
Boston, MA 02115
e-mail: m.su@northeastern.edu
1Corresponding author.
Contributed by the Heat Transfer Division of ASME for publication in the JOURNAL OF HEAT TRANSFER. Manuscript received October 4, 2017; final manuscript received January 10, 2018; published online April 11, 2018. Assoc. Editor: Sara Rainieri.
J. Heat Transfer. Aug 2018, 140(8): 084501 (8 pages)
Published Online: April 11, 2018
Article history
Received:
October 4, 2017
Revised:
January 10, 2018
Citation
Hou, S., and Su, M. (April 11, 2018). "Image-Based Rapid Measurements of Temperature-Dependent Thermal Conductivities." ASME. J. Heat Transfer. August 2018; 140(8): 084501. https://doi.org/10.1115/1.4039219
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