Measurement of interface thermal resistance with neutron diffraction

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

3 Scopus Citations
View graph of relations

Author(s)

  • Seung-Yub Lee
  • Harley Skorpenske
  • Alexandru D. Stoica
  • Ke An
  • I. C. Noyan

Detail(s)

Original languageEnglish
Article number31302
Journal / PublicationJournal of Heat Transfer
Volume136
Issue number3
Publication statusPublished - Mar 2014

Abstract

A noncontact, nondestructive neutron diffraction technique for measuring thermal resistance of buried material interfaces in bulk samples, inaccessible to thermocouple measurements, is described. The technique uses spatially resolved neutron diffraction measurements to measure temperature, and analytical or numerical methods to calculate the corresponding thermal resistance. It was tested at the VULCAN instrument of the Spallation Neutron Source, Oak Ridge National Laboratories on a stack of three 6061 alloy aluminum plates (heat-source, middle-plate, and heat-sink), held in dry thermal contact, at low pressure, in ambient air. The results agreed with thermocouple-based measurements. This technique is applicable to all crystalline materials and most interface configurations, and it can be used for the characterization of thermal resistance across interfaces in actual engineering parts under nonambient conditions and/or in moving/rotating systems. Copyright © 2014 by ASME.

Research Area(s)

  • Buried interface, Neutron diffraction, Thermal resistance

Citation Format(s)

Measurement of interface thermal resistance with neutron diffraction. / Lee, Seung-Yub; Skorpenske, Harley; Stoica, Alexandru D.; An, Ke; Wang, Xun-Li; Noyan, I. C.

In: Journal of Heat Transfer, Vol. 136, No. 3, 31302, 03.2014.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review