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document
Akram, M. (author), Jansen, K.M.B. (author), Ernst, L.J. (author), Bhowmik, S. (author), Ajeesh, G. (author), Ahmed, S. (author), Chakraborty, D. (author)
This investigation highlights the effect of surface modification on polyimide by atmospheric pressure plasma treatment with different exposure time. Surface modification of polymer by plasma treatment essentially creates physical and chemical changes such as cross-linking and formation of free radicals. It also forms oxygen functionalization in...
journal article 2015
document
Akram, M. (author), Jansen, K.M.B. (author), Bhowmik, S. (author), Ernst, L.J. (author)
Titanium and its alloys are usually bonded together using a high temperature resistant polyimide or epoxy adhesives. Such adhesives can withstand temperatures from 200°C to300°C. Earlier research work indicates that Surface modification of titanium with mechanical treatment and atmospheric pressure plasma treatment techniques leads to improved...
conference paper 2012
document
Akram, M. (author), Jansen, K.M.B. (author), Bhowmik, S. (author), Ernst, L.J. (author)
The high temperature resistant polymers and metal composites are used widely in aviation, space, automotive and electronics industry. The high temperature resistant polymers and metals are joined together using high temperature adhesives. Polyimide and epoxy adhesives that can withstand high temperature (200 °C-300 °C) are commonly used for...
conference paper 2011
document
Akram, M. (author), Jansen, K.M.B. (author), Ernst, L.J. (author), Bhowmik, S. (author)
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...
journal article 2011
document
Akram, M. (author), Bhowmik, S. (author), Jansen, K.M.B. (author), Ernst, L.J. (author)
It is noted that in search of long term and efficient service performance in the context of future generation of aerospace materials, there is increasing need of metal-high performance polymer composite. Based on these considerations, high temperature resistant polymeric sheet such as Polyimide Meldin7001 sheet, is joined with Titanium sheet by...
conference paper 2011
document
Nakka, J.S. (author), Jansen, K.M.B. (author), Ernst, L.J. (author)
In this paper a detailed study in investigating the effect of the chain flexibility in epoxy-amine crosslinked network is done. In order to introduce flexibility into the crosslinked network a homologous series of four aliphatic diamine curing agents varying only in the chain length and having a constant functionality (f?=?4) is taken and cured...
journal article 2011
document
Akram, M. (author), Bhowmik, S. (author), Jansen, K. (author), Ernst, L.J. (author)
Titanium is one of the most effective materials for structural application of space craft and aviation. Titanium alloys are widely used in solid rocket booster cases, guidance control pressure vessel and other different applications demanding light weight and reliability. Aerospace industry is also a larger market for titanium products and...
conference paper 2010
document
Zoumpouidis, T. (author), Wang, L. (author), Bartek, M. (author), Jansen, K.M.B. (author), Ernst, L.J. (author)
Our progress in developing technology modules for deformable single-crystalline-silicon electronics is presented in this contribution. Additional deformability/reliability is accomplished by modifications of the previously reported ultra-thin and flexible CIRCONFLEX technology (1). The flexibility is added in the last steps of the process flow...
journal article 2007
document
Jansen, K.M.B. (author), Qian, C. (author), Ernst, L.J. (author), Bohm, C. (author), Kessler, A. (author), Preu, H. (author), Stecher, M. (author)
conference paper 2007
document
Jansen, K.M.B. (author), Wang, L.G. (author), Ernst, L.J. (author), Zhang, G.Q. (author), Bressers, H.J.L. (author)
journal article 2004
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