Publication :


Title:

Black anodic coatings for space applications: study of the process parameters, characteristics and mechanical properties

Authors: Y. Goueffon, L. Arurault, C. Mabru, C. Tonon and P. Guigue
Year: 2009
Journal: Journal of Materials Processing Technology.
Volume: 209, Number: 11, Pages: 5145-5151

DOI: 10.1016/j.jmatprotec.2009.02.013
OATAO: 2628
Référencé ISI Web Of Science
Référencé Scopus

Abstract:
Black inorganic anodized aluminium alloys are used for managing passive thermal control on spacecraft and for avoiding stray light in optical equipment. Spalling of these coatings has sometimes been observed after thermal cycling on 2XXX and 7XXX aluminium alloys. This phenomenon could generate particulate contamination in satellites and may affect mission lifetime. In this work, the influences of the four main steps of the process (pretreatments, sulphuric anodizing, colouring and sealing) on the coating characteristics have been studied for a 7175 T7351 aluminium alloy. The chemical heterogeneity of the coating has been underlined, and its mechanical behaviour observed through crazing. Scratch-testing, used to evaluate coating adhesion to its substrate, revealed the negative impact of thermal cycling.

Bibtex citation :
@article{Goueffon2009,
Author={Goueffon, Y. and Arurault, L. and Mabru, C. and Tonon, C. and Guigue, P.},
Title={Black anodic coatings for space applications: study of the process parameters, characteristics and mechanical properties},
Journal={Journal of Materials Processing Technology},
Volume={209},
Number={11},
Pages={5145-5151 },
Year={2009}}


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