Searched for: contributor%3A%22Thijsse%2C+B.J.+%28promotor%29%22
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Elzas, A. (author)
Multiphase alloys such as advanced high strength steels show limited ductility due to interface decohesion at internal boundaries. This interface decohesion is caused by dislocations that pile-up at interfaces in the material, where they cause a stress concentration. This stress concentration in turn can lead to interface decohesion, resulting...
doctoral thesis 2019
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Mao, W. (author)
Galvanized advanced high strength steels (AHSS) will be the most competitive structural material for automotive applications in the next decade. Oxidation of AHSS during the recrystalization annealing process in a continuous galvanizing line to a large extent influences the quality of zinc coating on the final galvanized steel product. For...
doctoral thesis 2018
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Zhang, X. (author)
Multiscale computational materials science has reached a stage where many complicated phenomena or properties that are of great importance to manufacturing can be predicted or explained. The word “ab initio study” becomes commonplace as the development of density functional theory has enabled the predictions to be independent of experimental...
doctoral thesis 2017
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Dikken, R.J. (author)
Sustainability has become an integral part of todays society. A thorough understanding of friction as a major cause of energy dissipation is therefore highly relevant. Friction of rough surfaces in contact is a physical phenomenon that involves multiple length- and time-scales, complicating a full understanding of friction. The fundamental study...
doctoral thesis 2017
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Ng Wei Siang, K. (author)
doctoral thesis 2016
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Sun, F. (author)
The ultimate objective of this work is to gain a better understanding of the plastic behavior of rough metal surfaces under contact loading. Attention in this thesis focuses on the study of single and multiple asperities with micrometer scale dimensions, a scale at which plasticity is known to be size dependent. The asperities have very simple...
doctoral thesis 2016
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Uluc, A.V. (author)
Although it has been more than a century since the first known hydrogen embrittlement case was reported, the fundamental question regarding its mechanism is still open to debate. Understanding the hydrogen-metal interactions is of great importance in tailoring microstructures that will have excellent mechanical properties while still resisting...
doctoral thesis 2015
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Echeverri Restrepo, S. (author)
doctoral thesis 2015
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Aghaei Lashgari, V. (author)
Advanced high strength steels (AHSS) have been used extensively in the automotive industries. The main characteristic of these steels is combination of high strength and enhanced formability that makes them very attractive for automotive application. However, the major drawback of these steels is their poor corrosion resistance. Hence, Hot-dip...
doctoral thesis 2014
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Zhang, Y. (author)
This thesis addresses the feasibility of a new nanotechnology, direct metal nanoimprinting. The main aim of this work is to investigate, by means of computer simulations, the possibility to create reproducible patterns in a metal layer by plastically deforming it with a rigid template.
doctoral thesis 2014
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Ande, C.K. (author)
First-principles Density Functional Theory (DFT) based calculations are used to quantitatively study the effect of alloying elements on the stability of iron carbides (Fe3C, Fe5C2 and ?-Fe2C) that form in steels.
doctoral thesis 2013
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Ugur, D. (author)
In accordance with Gordon Moore’s law, the number of transistors that can be placed on an integrated chip of a certain size is increasing exponentially. This can only be realized with an increase in the spatial resolution of the lithography systems, allowing smaller feature sizes to be printed. Today, Extreme ultraviolet lithography (EUVL),...
doctoral thesis 2012
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Lazi?, I. (author)
Improvement of wear resistant and tribological properties of materials is of great technological importance and is the main relevance of the current oxide coatings study. Aluminum oxide is especially interesting because of its very rapid self-repair capacity. As a second subject of this thesis, Cu film growth on Ta, a diffusion barrier material,...
doctoral thesis 2009
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Ernst, M.A. (author)
To ensure a continuing miniaturization in the semiconductor industry, new technologies need to be developed to define ever smaller patterns on the silicon substrates. One of these emerging technologies is extreme ultraviolet (EUV) lithography. Unfortunately, EUV light causes oxidation of the optical components inside the lithography machine that...
doctoral thesis 2009
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Abbate, G. (author)
doctoral thesis 2009
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Pekelharing, M.I. (author)
A thermodynamic model for interstitial alloys, based on the Cluster Variation Method (CVM), has been developed, capable of incorporating short range ordering (SRO), long range ordering (LRO), and the mutual interaction between the host and the interstitial sublattices. The obtained cluster-based model is applied to describe phase equilibria...
doctoral thesis 2008
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Shamsutdinov, N.R. (author)
doctoral thesis 2006
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Nijdam, T.J. (author)
The turbine blades in gas turbine engines need to be protected against high temperature oxidation and corrosion with a coating system. This coating system comprises of a Ni-based superalloy substrate, a NiCoCrAlY bond coating (BC) and an insulating ceramic thermal barrier coating (TBC). Good protection is offered when during service of the...
doctoral thesis 2005
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Venugopal, V. (author)
In situ thermal helium desorption spectrometry (THDS) has been used to characterize defects and thermal stability of nanothin Cu films (0.5-30 nm) deposited on Mo and Ta by electron beam evaporation in ultrahigh vacuum. The substrates used were Mo(110), Mo(100), polycrystalline Mo, Ta(110) and Ta(100). Cu/Mo and Cu/Ta are heteroepitaxial systems...
doctoral thesis 2005
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Klaver, T.P.C. (author)
Tantalum (Ta) is a metal with good properties to act as a diffusion barrier material in computer chips, where it should prevent the mixing of Cu into Si and SiO. The deposition of thin Cu films onto various Ta substrates has been studied through molecular dynamics simulations, using either empirical EAM potentials or Density Functional Theory ...
doctoral thesis 2004
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