Accession Number:

ADA191755

Title:

Thermal Conductivity of Hard Anodized Coatings on Aluminum

Descriptive Note:

Professional paper for period ending Jun 1987

Corporate Author:

NAVAL OCEAN SYSTEMS CENTER SAN DIEGO CA

Personal Author(s):

• Ogden, T. R.

Report Date:

1987-11-01

Pagination or Media Count:

6.0

Abstract:

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.

Descriptors:

• *ANODIC COATINGS
• *ALUMINUM
• *ALUMINUM OXIDES
• FACILITIES
• ELECTROCHEMISTRY
• VARIATIONS
• COATINGS
• THERMAL CONDUCTIVITY
• LABORATORIES
• HEAT
• HARDNESS
• INSULATION
• PARAMETERS
• THICKNESS
• COMMERCE

Subject Categories:

• Coatings, Colorants and Finishes
• Fabrication Metallurgy

Distribution Statement:

APPROVED FOR PUBLIC RELEASE