Searched for: contributor:"van der Zwaag, S. (mentor)"
(1 - 20 of 26)

Pages

document
Callens, Lander (author)
Unlike traditional wet-adhesives, dry adhesives are bioinspired solid polymers that owe their adhesion to hierarchical structures. Gecko’s are the most recognizable living creatures relying on this concept to climb walls. A close look at the gecko’s fingers reveals a hierarchical system of micro-and nanoscale filaments. These ensure excellent...
master thesis 2020
document
Khan, Y. (author)
An experimental study is conducted on the design of actively controlled semi-permeable inserts for mitigating turbulent boundary layer noise originating from the trailing edge of an airfoil. Two sets of perforated inserts with hole diameter: 0.8 mm and hole spacing: 1.5 mm & 3 mm, are considered. The inserts are 3-D printed with a middle...
master thesis 2020
document
Chen, Yuchen (author)
Energy harvesting has become a popular topic for battery substitution in recent years. In particular, mechanical vibrational energy, one of the most common energy sources, has been intensely studied. Piezoelectric materials play a crucial role in vibrational energy harvesting as they can directly convert the mechanical energy to the desired...
master thesis 2020
document
Floris, C.E. (author)
Damage in materials and structures is unavoidable, leading to the time deterioration of its functional properties (e.g. barrier, load bearing, aesthetics) and ultimate repair or replacement. Lifetime extension can be achieved by using materials with initially higher performance or using materials that can repair themselves (self-healing). The...
master thesis 2017
document
Sainis, S.M. (author)
Bainite is an interesting solid-state transformation in steels and a detailed understanding of the mechanism and phase transformation kinetics is of fundamental interest as well as technological importance. In this study, the kinetics of austenite to bainitic ferrite is studied through in-situ high temperature laser scanning confocal microscopy ...
master thesis 2017
document
Dieleman, C.D. (author)
Aluminium AA2024-T3 is a high strength aluminiumalloy widely used in aerospace. The strengthening copper-rich intermetallic phases, however, make the material very susceptible to aqueous corrosion and severe pitting. To protect the metal, coatings loaded with corrosion inhibitors are typically used. Traditionally, highly efficient CrVI-based...
master thesis 2016
document
Rueda Ruiz, M. (author)
Thermal barrier coatings (TBC) are often applied to hot components of modern turbojet engines. These coatings increase the performance of the engine and enhance the lifetime of its structural components. Thus, improving the TBC lifetime is related with a reduction of maintenance costs and increased reliability. As an alternative to conventional...
master thesis 2016
document
Zhao, Y. (author)
Recently, X65 carbon steel pipes internally clad with a thin Inconel625 alloy lining are highly used. However, during welding the Inconel625 lining in the root pass, the weld bead is uneven. To avoid weld defects in the successive passes, an additional grinding procedure is always required to flatten the weld bead. It is known that as an...
master thesis 2016
document
Tombrock, A.J.C. (author)
DP600 HR is one of Tata Steels hot rolled products. It is a dual phase steel unique to Tata Steel for its two step cooling process and low coiling temperature. The finished product has encountered several surface defects, one of which are imprints. In order to find the root cause for the imprints a literature study, a factory inspection and a...
master thesis 2016
document
Snel, J.S. (author)
This thesis investigated the mechanical properties and deformation behaviour of accumulative roll-bonded (ARB) Cu/Nb metallic multilayers at nanoscale layer thicknesses and temperatures up to 400 degrees Celsius. Samples with individual layer thicknesses between 7 and 63 nm were nanomechanically tested at room-temperature by micropillar...
master thesis 2016
document
De Boom, K. (author)
In recent years the number of applications relying on piezoelectric sensors has increased rapidly. New applications lead to new requirements concerning material properties and functionalities. In many of the (future) applications, such as artificial robotic skin, structural health monitoring and flexible keyboards, the necessity for flexibility...
master thesis 2016
document
Denissen, P.J. (author)
master thesis 2015
document
Xu, L. (author)
This research focuses on the stability of three metastable ? titanium alloys – Ti-10V-1Fe-3Al (Ti-1013), Ti-10V-2Cr-3Al (Ti-102Cr3) and Ti-10V-2Fe-3Al-B (Ti-1023B). In the first stage of the work, new ?+(?+?) heat treatment schemes were designed on the basis of Thermo-Calc® simulations and previous research work and carried out to such an extent...
master thesis 2015
document
Van Loock, F. (author)
This thesis investigates the shear strain-driven energy harvesting performance of compliant piezoelectric composite material systems. A characterization study was performed to observe and quantify the piezoelectric shear coupling of two phase piezoelectric composite materials ranging from 0-3 (particulate) to 1-3 (fiber) composites. To this aim,...
master thesis 2014
document
De Jong, M. (author)
This thesis studies precipitation processes in the Aluminium 7000 series using quantum mechanical total energy calculations. The emphasis is laid on studying the energetics of the various transient phases involved in precipitation of the 5 most important strengthening precipitates. Bulk, strain and interface effects are studies separately, in...
master thesis 2010
document
Lemmen, H.J.K. (author)
The research of this thesis is focused on the optimization of laser beam welding of PMlOOO with respect to its high temperature mechanica! properties. This nickel chromium alloy is used for the thermal protection system of the re-entry test vehicle of ESA; Expert. With respect to the ceramic tiles which are used in conventional thermal...
master thesis 2005
document
Rolin, V. (author)
master thesis 2000
document
Fu, Y. (author)
master thesis 1998
document
Maas, F.A.M. (author)
master thesis 1997
document
Remijn, P.G.W. (author)
master thesis 1997
Searched for: contributor:"van der Zwaag, S. (mentor)"
(1 - 20 of 26)

Pages