Evaluation of the cross-plane thermal conductivity of double-layer materials

Double-layer cladding materials were fabricated by roll bonding using stainless steel (STS439) and aluminum (Al1050) sheets to investigate the thermal conduction of multi-layer composites. The measured thermal conductivities were compared to values calculated from cross-plane models that are widely...

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Bibliographic Details
Published inComposites. Part B, Engineering Vol. 110; pp. 1 - 6
Main Authors Kim, Jong-Gu, Bae, Dong-Hyun, Hahn, Byung-Dong, Cho, Young-Rae
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 01.02.2017
Subjects
Joints
Layered structures
Thermal analysis
Thermal properties
Thermal properties
Thermal analysis
Joints
Layered structures
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Summary:Double-layer cladding materials were fabricated by roll bonding using stainless steel (STS439) and aluminum (Al1050) sheets to investigate the thermal conduction of multi-layer composites. The measured thermal conductivities were compared to values calculated from cross-plane models that are widely used for resistor connections in electrical circuits. The measured thermal conductivity was 88.3 W/m·K for the sample containing 76 vol% of Al1050. Unexpectedly, the measured cross-plane thermal conductivities were always higher than the values calculated from the series model. The high cross-plane thermal conductivities were attributed to the contribution of phonons to thermal transfer. A deviation index of the thermal conductivity, Fm(S), is proposed, which effectively describes the cross-plane thermal conductivity characteristics of double-layer materials.
ISSN:1359-8368
1879-1069
DOI:10.1016/j.compositesb.2016.10.086