- document
-
Karanth, Pranav (author)Metal anode based batteries, considered the ideal upgrade to Lithium ion batteries in terms of energy density, are currently held back by the non-homogeneous deposition phenomenon that leads to the formation of dendrites that short circuit the cell. The solution to this problem is twofold: while it is important to come up with solutions that...master thesis 2019
- document
-
Tierolf, Melissa (author)BACKGROUND.Implant-associated infection (IAI) is a rising complication in bone-related medical treatments using metal implants. Preventive measures, such as implant surfaces with integrated antibacterial properties, are hence required. The emergence of antibiotic-resistant pathogens has led to a growing interest in inorganic nanoparticles as...master thesis 2019
- document
-
Javadi, E. (author), Ghaffari, M. (author), Bahlakeh, Ghasem (author), Taheri, P. (author)The influence of silane treated nano zinc oxide (nZnO) on the protection, photocatalytic properties and interfacial interactions in acrylic/carbon steel systems was investigated. For this purpose, nZnO particles have been synthesized using microwave irradiation method. The morphology of synthesized zinc oxide nanoparticles was studied by...journal article 2019
- document
-
Kuperus, Marianne (author)Hot-dip galvanizing is a well-known process to increase the corrosion resistance of steel. As a by-product dross is formed in the Zn-bath. The dross particles are composed of Fe, Al and Zn in the form of Fe2Al5Znx and interact with the hardware that is submerged in the Zn-bath and eventually accumulate on the surface of the hardware. This...master thesis 2018
- document
-
Putra, Niko Eka (author)The emergence of antibiotic-resistant bacteria has increased the number of implant revision procedures in the Netherlands due to implant-associated infections (IAI). Staphylococci strains accounted for more than 50% of all IAI cases. Preventative measure, such as active antibacterial surfaces on the implant, are urgently needed. This study aims...master thesis 2018
- document
-
Yagob Mohamed, T.I. (author), Bode, P. (author), van de Wiel, A. (author), Ismail, Fadwa (author), Wolterbeek, H.T. (author)Iron deficiency anaemia is a major health problem worldwide, but may be complicated in underdeveloped nations by deficiencies of other micronutrients with consequences for adequate treatment. The World Health Organization (WHO) estimates that 2 billion people – over 30% of the world’s population – are anaemic, approximately 50% of cases of...journal article 2017
- document
-
Verburg, R.A. (author)At Tata Steel IJmuiden a part of the blast furnace dust is not recycled to prevent too high zinc levels in the blast furnace. Blast furnace dust is first separated from the off-gas into dry dust and sludge. The dry dust is collected in a dust bag and is directly transported to the sinyter plant. Then the sludge is separated by size through...master thesis 2015
- document
-
Theelen, M.J. (author)Thin film CIGS solar cells and individual layers within these solar cells have been tested in order to assess their long term stability. Alongside with the execution of standard tests, in which elevated temperatures and humidity levels are used, the solar cells have also been exposed to a combination of elevated temperature and humidity and...doctoral thesis 2015
- document
-
Fujii, M. (author), Ishikawa, Y. (author), Ishihara, R. (author), Van der Cingel, J. (author), Mofrad, M.R.T. (author), Horita, M. (author), Uraoka, Y. (author)In this study, we successfully achieved a relatively high field-effect mobility of 37.7?cm2/Vs in an InZnO thin-film transistor (TFT) fabricated by excimer layer annealing (ELA). The ELA process allowed us to fabricate such a high-performance InZnO TFT at the substrate temperature less than 50?°C according to thermal calculation. Our analysis...journal article 2013
- document
-
Demontis, V. (author), Sanna, C. (author), Melskens, J. (author), Santbergen, R. (author), Smets, A.H.M. (author), Damiano, A. (author), Zeman, M. (author)Thin oxide interlayers are commonly added to the back reflector of thin-film silicon solar cells to increase their current. To gain more insight in the enhancement mechanism, we tested different back reflector designs consisting of aluminium-doped zinc oxide (ZnO:Al) and/or hydrogenated silicon oxide (SiOx:H) interlayers with different metals ...journal article 2013
- document
-
Mardones, J.P. (author)This thesis studies the zinc extraction from spinels through hydro and pyrometallurgical processing. Two zinc-bearing spinels are covered: zinc ferrite ZnO·Fe2O3 to a limited extent and gahnite ZnO·Al2O3 as the main subject, compounds which are found naturally on the Earth’s crust as well as in industrial residues from the zinc industry, steel...master thesis 2012
- document
-
Versteegh, M.A.M. (author), Van Capel, P.J.S. (author), Dijkhuis, J.I. (author)We present an ultrafast all-optical gated amplifier, or transistor, consisting of a forest of ZnO nanowire lasers. A gate light pulse creates a dense electron-hole plasma and excites laser action inside the nanowires. Source light traversing the nanolaser forest is amplified, partly as it is guided through the nanowires, and partly as it...journal article 2012
- document
-
Pan, Y. (author)The major problem during laser welding of zinc coated sheet steel in an overlap configuration is the zinc vapour produced at the interface between two sheets. The vapour tends to evacuate through the keyhole and melt pool, particularly when no gap is present between the overlapped sheets. This causes process instabilities and results in the...doctoral thesis 2011
- document
-
Schulte, M. (author), Bittkau, K. (author), Jäger, K. (author), Ermes, M. (author), Zeman, M. (author), Pieters, B.E. (author)Textured interfaces in thin-film silicon solar cells improve the efficiency by light scattering. A technique to get experimental access to the angular intensity distribution (AID) at textured interfaces of the transparent conductive oxide (TCO) and silicon is introduced. Measurements are performed on a sample with polished microcrystalline...journal article 2011
- document
-
Brouwer, D. (author)In this study a industrial survey was performed on the secondary products generated in the Dutch metal industry. From this industrial survey it was concluded that the Dutch metal industry is already far ahead with closing the materials cycle as for almost every product is a processing route to recover its metal content. The residues generated at...master thesis 2010
- document
-
Kemperman, D. (author)In this study metallurgical processing of two different kinds of zinc-bearing residues have been performed: Zinc A and Zinc B. These residues have been stored for over 15 years in Rotterdam Harbor. The chemical compositions of the residues have been determined and showed that zinc ferrite is a major phase present. Zinc ferrite is not soluble...master thesis 2010
- document
-
Dijkhuis, R.J.E. (author)The basis for this research project was that copper is lost in the Leaching Plant of the Nyrstar Budel zinc smelter. In the section of the Leaching Plant copper is lost, iron and aluminium are precipitated. Sampling of this process showed that the removal of copper from the solution is a function of pH and is mainly linked to the removal of...master thesis 2009
- document
-
Jäger, K. (author), Zeman, M. (author)We present a mathematical model that relates the surface morphology of randomly surface-textured thin films with the intensity distribution of scattered light. The model is based on the first order Born approximation [see e.g., M. Born and E. Wolf, Principles of Optics, 7th ed. (Cambridge University Press, Cambridge, England, 1999) ] and on...journal article 2009
- document
-
Eijt, S.W.H. (author), De Roode, J. (author), Schut, H. (author), Kooi, B.J. (author), De Hosson, J.T.M. (author)Coimplantation of Zn and O ions into a single crystalline MgO and subsequent thermal annealing were applied in the synthesis of ZnO nanocrystals. Electron microscopy showed that rocksalt instead of wurtzite ZnO stabilizes for relatively large nanocrystals up to ~15?nm, resulting from its small lattice mismatch with MgO of ~1.7%. The vacancies...journal article 2007
- document
-
Popadi?, M. (author), Milanovi?, V. (author), Ikoni?, Z. (author), Indijn, D. (author)A simulation of an optically pumped laser based on a ZnSe/Zn1?yCdySe double quantum well with a Zn1?xMnxSe diluted magnetic semiconductor barrier is presented. Giant Zeeman splitting in diluted magnetic semiconductors leads to splitting of electronic states, which in turn leads to tunability of laser wavelength by external magnetic field....journal article 2006