Estimating interfacial thermal conductivity in metamaterials through heat flux mapping
The variability of the thickness as well as the thermal conductivity of interfaces in composites may significantly influence thermal transport characteristics and the notion of a metamaterial as an effective medium. The consequent modulations of the heat flux passage are analytically and experimentally examined through a non-contact methodology using radiative imaging, on a model anisotropic thermal metamaterial. It was indicated that a lower Al layer/silver interfacial epoxy ratio of ∼25 compared to that of a Al layer/alumina interfacial epoxy (of ∼39) contributes to a smaller deviation of the heat flux bending angle.
- OSTI ID:
- 22398878
- Journal Information:
- Applied Physics Letters, Vol. 106, Issue 14; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- English
Similar Records
Near-field thermal radiation between homogeneous dual uniaxial electromagnetic metamaterials
Tailoring Thermal Radiative Properties with Doped-Silicon Nanowires
Thermal Conductivity Reduction in a Nanophononic Metamaterial versus a Nanophononic Crystal: A Review and Comparative Analysis
Journal Article
·
Tue Jun 07 00:00:00 EDT 2016
· Journal of Applied Physics
·
OSTI ID:22398878
+1 more
Tailoring Thermal Radiative Properties with Doped-Silicon Nanowires
Technical Report
·
Mon Aug 28 00:00:00 EDT 2017
·
OSTI ID:22398878
Thermal Conductivity Reduction in a Nanophononic Metamaterial versus a Nanophononic Crystal: A Review and Comparative Analysis
Journal Article
·
Mon Nov 04 00:00:00 EST 2019
· Advanced Functional Materials
·
OSTI ID:22398878