28th Congress of the International Council of the Aeronautical Sciences, 23 - 28 September 2012, Brisbane, Australia
Paper ICAS 2012-7.2.1
DIARC PLASMA COATING FOR RELIABLE AND DURABLE STRUCTURAL BONDING OF METALS
J. Aakkula, O. Saarela, T. Haikola*, S. Tervakangas*
Aalto Univ., Finland; *DIARC-Technology Inc., Finland
Keywords: diarc coating, metal adhesive bonding, surface preparation
DIARC vacuum plasma surface treatment was tested for improving the reliability and durability of aluminium, titanium and steel epoxy bonding. Wedge test specimens were exposed to different environments. DIARC coating provided good results with all metals. The coating of honeycomb core steel insert improved their torque strength over 100 %.
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