Searched for: +
(121 - 140 of 160)

Pages

document
Abrahami, S.T. (author), de Kok, John M.M. (author), Gudla, Visweswara C. (author), Ambat, Rajan (author), Terryn, H.A. (author), Mol, J.M.C. (author)
For more than six decades, chromic acid anodizing has been the main step in the surface treatment of aluminum for adhesively bonded aircraft structures. Soon this process, known for producing a readily adherent oxide with an excellent corrosion resistance, will be banned by strict international environmental and health regulations. Replacing...
journal article 2017
document
Laird, Jamie S. (author), Hughes, Anthony E. (author), Ryan, C.J. (author), Visser, P (author), Terryn, H.A. (author), Mol, J.M.C. (author)
Lithium based inhibitors in aerospace coatings are seen as excellent replacements for their chromium counterparts which are both carcinogenic and heavier. However, Li is generally difficult to detect and following changes in its distribution due to corrosion is impossible with many standard techniques. Combining MeV Particle Induced Gamma and...
journal article 2017
document
Norouzi Afshar, F. (author), Tichelaar, F.D. (author), Glenn, A. M. (author), Taheri, P. (author), Sababi, M. (author), Terryn, H.A. (author), Mol, J.M.C. (author)
This work studies the influence of the microstructure on the corrosion mechanism and susceptibility of as-brazed aluminum sheet. Various microstructures are obtained using postbrazing heat treatments developed to enhance the corrosion resistance of an AA4xxx/AA3xxx brazing sheet. The heat treatment results in a decrease of the matrix Si...
journal article 2017
document
Naddaf Dezfuli, S. (author), Huan, Z. (author), Mol, J.M.C. (author), Leeflang, M.A. (author), Chang, Jiang (author), Zhou, J. (author)
The present research was aimed at developing magnesium-matrix composites that could allow effective control over their physiochemical and mechanical responses when in contact with physiological solutions. A biodegradable, bioactive ceramic - bredigite was chosen as the reinforcing phase in the composites, based on the hypothesis that the...
journal article 2017
document
Visser, P. (author), Meeusen, M. (author), Gonzalez Garcia, Y. (author), Terryn, H.A. (author), Mol, J.M.C. (author)
This work presents the electrochemical evaluation of protective layers generated in a coating defect from lithium-leaching organic coatings on AA2024-T3 aluminum alloys as a function of neutral salt spray exposure time. Electrochemical impedance spectroscopy was used to study the electrochemical properties on a macroscopic scale. An...
journal article 2017
document
Abrahami, S.T. (author), Hauffman, T. (author), de Kok, John M.M. (author), Terryn, H.A. (author), Mol, J.M.C. (author)
The long-term strength and durability of an adhesive bond is dependent on the stability of the oxide-adhesive interface. As such, changes in the chemistry of the oxide and/or the adhesive are expected to modify the interfacial properties and affect the joint performance in practice. The upcoming transition to Cr(VI)-free surface pretreatments...
journal article 2017
document
Hughes, Anthony (author), Laird, James (author), Ryan, Chris (author), Visser, P. (author), Terryn, H.A. (author), Mol, J.M.C. (author)
The distribution and chemical composition of inorganic components of a corrosion-inhibiting primer based on polyurethane is determined using a range of characterisation techniques. The primer consists of a Li2CO3 inhibitor phase, along with other inorganic phases including TiO2, BaSO4 and Mg-(hydr)oxide. The characterisation techniques included...
journal article 2017
document
Pletincx, Sven (author), Marcoen, Kristof (author), Trotochaud, Lena (author), Fockaert, L.I. (author), Mol, J.M.C. (author), Head, Asley R. (author), Karslıoğlu, Osman (author), Bluhm, Hendrik (author), Terryn, H.A. (author), Hauffman, T. (author)
Understanding the stability of chemical interactions at the polymer/metal oxide interface under humid conditions is vital to understand the long-term durability of hybrid systems. Therefore, the interface of ultrathin PMMA films on native aluminum oxide, deposited by reactive adsorption, was studied. The characterization of the interface of the...
journal article 2017
document
Yang, Z. (author), Polder, R.B. (author), Mol, J.M.C. (author)
Owing to the unique molecular structure and high ion exchange capacity, hydrotalcites are believed to have a potential to be modified and tailor-made as an active corrosion protective component of reinforced concrete. In this paper, two types of modified hydrotalcites (MHT-pAB and MHT-NO2) were tested both in alkaline solution and mortar for...
journal article 2017
document
Qian, Hongchang (author), Xu, Dake (author), Du, Cuiwei (author), Zhang, Dawei (author), Li, Xiaogang (author), Huang, Luyao (author), Deng, Leping (author), Tu, Yunchao (author), Mol, J.M.C. (author), Terryn, H.A. (author)
This work introduces a new self-healing superhydrophobic coating based on dual actions by the corrosion inhibitor benzotriazole (BTA) and an epoxy-based shape memory polymer (SMP). Damage to the surface morphology (e.g., crushed areas and scratches) and the corresponding superhydrophobicity are shown to be rapidly healed through a simple heat...
journal article 2017
document
Sababi, M. (author), Terryn, H.A. (author), Mol, J.M.C. (author)
The effect of a zirconium (Zr)-based pretreatment on interfacial bonding properties of a fusion bonded epoxy (FBE) coating on carbon steel is investigated. The initiation and kinetics of delamination of epoxy coatings applied on differently pretreated carbon steel surfaces is studied with scanning Kelvin probe (SKP). In-situ attenuated total...
journal article 2017
document
Stepniowski, W.J. (author), Stojadinović, Stevan (author), Vasilić, Rastko (author), Tadić, Nenad (author), Karczewski, Krzysztof (author), Abrahami, S.T. (author), Buijnsters, J.G. (author), Mol, J.M.C. (author)
Copper foil was anodized in 1 M KOH at potentials ranging from −400 to −100 mV vs. Ag|AgCl electrode. Cyclic voltammetry showed a distinct peak with a maximum at around −150 mV. For anodizing at −100 and −200 mV, nanowires with diameters of ca. 19 and 24 nm respectively were found to be grown. Moreover, photoluminescence and X-ray diffraction...
journal article 2017
document
Liu, Y. (author), Mol, J.M.C. (author), Janssen, G.C.A.M. (author)
The aluminium alloy 7075-T6 is widely used in engineering. In some applications, like slurry transport, corrosion and abrasion occur simultaneously, resulting in early material failure. In the present work, we investigated the combined effect of corrosion and wear on the aluminium alloy 7075-T6. We performed two series of wear experiments to...
journal article 2016
document
Deng, Z. (author), Mol, S. (author), Van der Hoek, J.P. (author)
The heating of drinking water in households contributes significantly to the emission of greenhouse gases. As a water utility aiming to operate at a climate neutral level by 2020, Waternet needs to reduce its CO2 emission by 53?kton?yr?1. To contribute to this ambition, a pilot project was carried out in Uilenstede, Amstelveen, the Netherlands,...
journal article 2016
document
Visser, P (author), Liu, Y (author), Terryn, H.A. (author), Mol, J.M.C. (author)
Lithium salts are being investigated as leachable corrosion inhibitor and potential replacement for hexavalent chromium in organic coatings. Model coatings loaded with lithium carbonate or lithium oxalate demonstrated active corrosion inhibition and the formation of a protective layer in a damaged area during neutral salt spray exposure. The...
journal article 2016
document
Liu, Y. (author), Visser, P. (author), Zhou, X. (author), Lyon, S.B. (author), Hashimoto, T. (author), Curioni, M. (author), Gholinia, A. (author), Thompson, G.E. (author), Smyth, G. (author), Gibbon, S.R. (author), Graham, D. (author), Mol, J.M.C. (author), Terryn, H.A. (author)
An investigation into corrosion inhibition properties of a primer coating containing lithium carbonate as corrosion inhibitive pigment for AA2024 aluminum alloy was conducted. It was found that, during neutral salt spray exposure, a protective film of about 0.2 to 1.5 ?m thickness formed within the area where an artificial defect was introduced...
journal article 2015
document
Naddaf Dezfuli, S. (author), Huan, Z. (author), Mol, J.M.C. (author), Leeflang, M.A. (author), Chang, J. (author), Zhou, J. (author)
The human body is a buffered environment where pH is effectively maintained. HEPES is a biological buffer often used to mimic the buffering activity of the body in in vitro studies on the degradation behavior of magnesium. However, the influence of HEPES on the degradation behavior of magnesium in the DMEM pseudo-physiological solution has not...
journal article 2014
document
Miwa, J.A. (author), Mol, J.A. (author), Salfi, J. (author), Rogge, S. (author), Simmons, M.Y. (author)
Single phosphorus donors in silicon are promising candidates as qubits in the solid state. Here, we present low temperature scanning probe microscopy and spectroscopy measurements of individual phosphorus dopants deliberately placed in p-type silicon ?1?nm below the surface. The ability to image individual dopants combined with scanning...
journal article 2013
document
Mol, J.A. (author), Salfi, J. (author), Miwa, J.A. (author), Simmons, M.Y. (author), Rogge, S. (author)
Understanding the electronic properties of dopants near an interface is a critical challenge for nanoscale devices. We have determined the effect of dielectric mismatch and quantum confinement on the ionization energy of individual acceptors beneath a hydrogen passivated silicon (100) surface. While dielectric mismatch between the vacuum and the...
journal article 2013
document
Koleva, D.A. (author), Taheri, P. (author), Tsvetkova, N. (author), Boshkov, N. (author), Van Breugel, K. (author), De Wit, J.H.W. (author), Mol, J.M.C. (author)
This paper reports on the corrosion performance of composite zinc layers (~ 8µm) on a steel substrate, considering the influence of nano-aggregates and Cr(III) conversion layers, compared to control (only Zn layers) conditions. The main factors, influencing the corrosion performance of Zn in this study are: a) the effect of two concentrations of...
journal article 2011
Searched for: +
(121 - 140 of 160)

Pages