Nanocomposites offer unique capabilities of controlling thermal transport through the manipulation of various structural aspects of the material. However, measurements of the thermal properties of these composites are often difficult, especially porous nanomaterials. Optical measurements of these properties, although ideal due to the noncontact nature, are challenging due to the large surface variability of nanoporous structures. In this work, we use a vector-based thermal algorithm to solve for the temperature change and heat transfer in which a thin film subjected to a modulated heat source is sandwiched between two thermally conductive pathways. We validate our solution with time domain thermoreflectance measurements on glass slides and extend the thermal conductivity measurements to -based nanostructured films.
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e-mail: pehopki@sandia.gov
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Measuring the Thermal Conductivity of Porous, Transparent Films With Time Domain Thermoreflectance
Patrick E. Hopkins,
Patrick E. Hopkins
Engineering Sciences Center,
e-mail: pehopki@sandia.gov
Sandia National Laboratories
, Albuquerque, NM 87185
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Bryan Kaehr,
Bryan Kaehr
Engineering Sciences Center,
Sandia National Laboratories
, Albuquerque, NM 87185; Department of Chemical and Nuclear Engineering, University of New Mexico
, Albuquerque, NM 87106
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Leslie M. Phinney,
Leslie M. Phinney
Fellow ASME
Engineering Sciences Center,
Sandia National Laboratories
, Albuquerque, NM 87185
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Timothy P. Koehler,
Timothy P. Koehler
Engineering Sciences Center,
Sandia National Laboratories
, Albuquerque, NM 87185
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Anne M. Grillet,
Anne M. Grillet
Engineering Sciences Center,
Sandia National Laboratories
, Albuquerque, NM 87185
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Darren Dunphy,
Darren Dunphy
Department of Chemical and Nuclear Engineering,
University of New Mexico
, Albuquerque, NM 87106
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Fred Garcia,
Fred Garcia
Department of Chemical and Nuclear Engineering,
University of New Mexico
, Albuquerque, NM 87106
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C. Jeffrey Brinker
C. Jeffrey Brinker
Engineering Sciences Center,
Sandia National Laboratories
, Albuquerque, NM 87185; Department of Chemical and Nuclear Engineering, University of New Mexico
, Albuquerque, NM 87106
Search for other works by this author on:
Patrick E. Hopkins
Engineering Sciences Center,
Sandia National Laboratories
, Albuquerque, NM 87185e-mail: pehopki@sandia.gov
Bryan Kaehr
Engineering Sciences Center,
Sandia National Laboratories
, Albuquerque, NM 87185; Department of Chemical and Nuclear Engineering, University of New Mexico
, Albuquerque, NM 87106
Leslie M. Phinney
Fellow ASME
Engineering Sciences Center,
Sandia National Laboratories
, Albuquerque, NM 87185
Timothy P. Koehler
Engineering Sciences Center,
Sandia National Laboratories
, Albuquerque, NM 87185
Anne M. Grillet
Engineering Sciences Center,
Sandia National Laboratories
, Albuquerque, NM 87185
Darren Dunphy
Department of Chemical and Nuclear Engineering,
University of New Mexico
, Albuquerque, NM 87106
Fred Garcia
Department of Chemical and Nuclear Engineering,
University of New Mexico
, Albuquerque, NM 87106
C. Jeffrey Brinker
Engineering Sciences Center,
Sandia National Laboratories
, Albuquerque, NM 87185; Department of Chemical and Nuclear Engineering, University of New Mexico
, Albuquerque, NM 87106J. Heat Transfer. Jun 2011, 133(6): 061601 (8 pages)
Published Online: March 9, 2011
Article history
Received:
June 7, 2010
Revised:
January 25, 2011
Online:
March 9, 2011
Published:
March 9, 2011
Citation
Hopkins, P. E., Kaehr, B., Phinney, L. M., Koehler, T. P., Grillet, A. M., Dunphy, D., Garcia, F., and Brinker, C. J. (March 9, 2011). "Measuring the Thermal Conductivity of Porous, Transparent Films With Time Domain Thermoreflectance." ASME. J. Heat Transfer. June 2011; 133(6): 061601. https://doi.org/10.1115/1.4003548
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