Thermal Conductivity of Hard Anodized Coatings on Aluminum
Professional paper for period ending Jun 1987
NAVAL OCEAN SYSTEMS CENTER SAN DIEGO CA
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Thermal conductivities of several commercial hard anodic coatings are measured using a transient heat-flow technique. These coatings were found to be effective heat insulators with thermal conductivities of the commercial coatings averaging 0.7 WmK. A laboratory anodization facility was assembled and the variation of thermal conductivity of the anodic coatings measured as a function of the anodization parameters. Preliminary results show that thermal conductivities as high as 1.3 WmK can be obtained in thick anodic coatings by optimizing the anodization parameters. Keywords Aluminum oxide, Electrochemical method, Thermal conductivity, Anodization parameters.
- Coatings, Colorants and Finishes
- Fabrication Metallurgy