Accession Number : AD0432324


Title :   HIGH TEMPERATURE, NON-REFLECTIVE EROSION RESISTANT ALUMINUM FINISH


Corporate Author : ROCK ISLAND ARSENAL IL


Personal Author(s) : Knanishu, J


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/432324.pdf


Report Date : 26 Nov 1963


Pagination or Media Count : 22


Abstract : A number of soluble inorganic compounds were used in reactions to deposit insoluble colored precipitates (pigments) in the pores of anodized aluminum alloys. Many colors and shades were obtained by using the variables of time of immersion, temperature and concentrations of the coloring solutions. The effects of the alloying constituents were observable in the colors obtained. There is a notable scarcity of inorganic compounds which can be used to produce a black or olive drab color on anodized aluminum. Alundum blasting improves variability and depth of colors. By proper control of the hard anodize process, excellent shades of light-fast, nonreflective olive drab colors can be produced.


Descriptors :   *ALUMINUM ALLOYS , *DYES , *ANODIC COATINGS , STABILITY , CAMOUFLAGE , CHROMATES , REFLECTION , COLORS , AMMONIUM COMPOUNDS , LEAD COMPOUNDS , FLUORIDES , SULFIDES , ACETATES , ACIDS , POTASSIUM COMPOUNDS , PICKLING COMPOSITIONS , PICKLING


Subject Categories : Coatings, Colorants and Finishes
      Metallurgy and Metallography


Distribution Statement : APPROVED FOR PUBLIC RELEASE