Print Email Facebook Twitter Atmospheric pressure plasma surface modification of titanium for high temperature adhesive bonding Title Atmospheric pressure plasma surface modification of titanium for high temperature adhesive bonding Author Akram, M. Jansen, K.M.B. Ernst, L.J. Bhowmik, S. Faculty Mechanical, Maritime and Materials Engineering Department Precision and Microsystems Engineering Date 2011-08-17 Abstract In this investigation surface treatment of titanium is carried out by plasma ion implantation under atmospheric pressure plasma in order to increase the adhesive bond strength. Prior to the plasma treatment, titanium surfaces were mechanically treated by sand blasting. It is observed that the contact angle of de-ionized water decreases with the grit blast treatment time. Optical microscopy and scanning electron microscopic (SEM) analysis of untreated and atmospheric plasma treated titanium are carried out to examine the surface characteristics. A substantial improvement in the surface energy of titanium is observed after the atmospheric pressure plasma treatment. The surface energy increases with increasing exposure time of atmospheric pressure plasma. The optimized time of plasma treatment suggested in this investigation results in maximum adhesive bond strength of the titanium.Unmodified and surface modified titanium sheets by atmospheric pressure plasma were adhesively bonded by high temperature resistant polyimide adhesive. The glass transition temperature of this adhesive is 310 C and these adhesively bonded joints were cured at high temperature. A substantial improvement in adhesive bond strength was observed after atmospheric pressure plasma treatment. NOTICE: this is the author’s version of a work that was accepted for publication in International Journal of Adhesion & Adhesives. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in International Journal of Adhesion & Adhesives, 31 (7), 2011 Subject titaniumsurface modificationatmospheric pressure plasmasurface energyadhesive bonding To reference this document use: http://resolver.tudelft.nl/uuid:ace1ac7e-485c-43fd-9455-be88c68225f5 DOI https://doi.org/10.1016/j.ijadhadh.2011.05.009 Publisher Elsevier ISSN 0143-7496 Source International journal of adhesion and adhesives, 31 (7), 2011. Authors version. Part of collection Institutional Repository Document type journal article Rights (c) 2011 Akram, M.Jansen, K.M.B.Ernst, L.J.Bhowmik, S.Elsevier Files PDF IJAA__paper1.pdf 1.05 MB Close viewer /islandora/object/uuid:ace1ac7e-485c-43fd-9455-be88c68225f5/datastream/OBJ/view