Searched for: contributor%3A%22Van+der+Zwaag%2C+S.+%28promotor%29%22
(1 - 20 of 62)
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Tuluk, A. (author)The main objective of the research as described in this thesis was to enhance the piezo- and electrical properties of bismuth ferrite-based (BiFeO3 or BFO) piezoceramics at room and elevated temperatures, using both chemical and physical approaches.doctoral thesis 2023
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Veldhuizen, H.V. (author)Covalent organic frameworks (COFs) are a subclass of hyper-crosslinked polymers that contain ordered nanoporosity within their polymer network. Control over pore size and shape, as well as structure regularity, is obtained through careful selection of the monomeric building blocks and the synthesis reaction conditions. This has led to a vast...doctoral thesis 2023
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Fu, Y. (author)When high-temperature steels are loaded under under industrially relevant conditions not only creep (i.e. a time dependent strain increase even under nominally constant loading conditions) occurs, but also local damage is formed. At relatively short exposure times quasi-spherical micron-sized cavities form preferentially at the grain boundaries...doctoral thesis 2022
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Stuber, V.L. (author)This thesis describes the development, validation and implementation of piezoelectric flow sensors. These sensors are meant to measure flow phenomena such as transition and separation in the boundary layer of an aircraft wing. Such information can be used<br/>as input variables to a control loop to push laminar-to-turbulent transition towards...doctoral thesis 2021
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Marchetti, M. (author)The work presented in this Thesis describes the use of reactive all aromatic liquid crystalline thermosetting resins for fiber reinforced composite applications. One of the challenges associated with reactive LC thermoplastic resins is that the melting temperature ( T k lc ) is typically close to or above the decomposition temperature. In order...doctoral thesis 2021
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Montano, V. (author)The work exposed in this thesis addresses two main scientific challenges in the field of intrinsic self-healing polymers that limit the translation of the academic research efforts into commercial products, namely: i) the implementation of the self-healing functionality in polymer commodities by minimal chemical modifications; and ii) the...doctoral thesis 2021
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Krishnasamy, J. (author)Thermal Barrier Coating (TBC) systems are protective layers applied to critical structural components of gas turbines operating at high-temperature. A typical TBC system consists of three different layers, namely a ceramic Top Coat (TC), an active Thermally Grown Oxide (TGO) layer and a metallic Bond Coat (BC). The outer ceramic TC that protects...doctoral thesis 2020
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Denissen, P.J. (author)The main objective of the work described in this dissertation is to explore the route towards new anticorrosion coatings for the protection of aerospace aluminium alloys using alternative strategies that can replace the currently used toxic chromate corrosion inhibitors. As such, each chapter of this dissertation is devoted to relevant...doctoral thesis 2020
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Zhong, N. (author)Thermal interface materials (TIMs) are widely used as gap–filler materials between electronic devices such as LEDs and ICs and their heat sink and aim to control the heat dissipation and to provide mechanical anchoring. As the rated power densities of electronic devices are increasing rapidly, the TIMS are exposed to higher thermal and...doctoral thesis 2020
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Yu, H. (author)The development in computational simulation techniques has brought significant progress in the realization of computational alloy design. The advantages are most significant when developing novel materials of which the research & development cycles are particularly time and energy (and hence cost) consuming, such as high-temperature alloys....doctoral thesis 2019
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Susa, A. (author)Covalent reversible chemistries give rise to polymers with reasonable mechanical properties yet require external stimuli to heal. Oppositely, supramolecular systems can heal autonomously, but their properties are still far away from most of those set by application requirements. Both downsides need to be addressed before intrinsic healing...doctoral thesis 2019
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Fang, H. (author)Solid-state phase transformations in steels cover a broad range of aspects. The underlying physics behind these phase transformations usually include nucleation, diffusion, lattice reconstruction and interactions between solutes and grain boundaries and interfaces. These features and the fact that the events take place at high temperatures, in...doctoral thesis 2019
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Farahani, H. (author)Steels are still, and probably will remain in future, the primary choice for applications as structural materials. This is not only because of the reasonable ratios of properties over production costs, but also owing to the versatile properties realisable via variety of microstructures achieved by controlling the solid-state phase...doctoral thesis 2018
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Boatemaa, L. (author)Alumina (Al2O3) is an attractive ceramic for engineering applications operating at elevated or high temperatures because of its good thermal and chemical resistance. It also maintains high strength and hardness at high temperatures. These desirable properties are due to the strong covalent and ionic bonds existing between its atoms.<br/>However,...doctoral thesis 2018
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Ponnusami, S.A. (author)Research in the field of self-healing materials gained significant attention in the last decade owing to its promise of enhanced durability of the material components in engineering applications. Though the research has led to several successful demonstrations, extensive experimental tests will be required for a successful demonstration. Further...doctoral thesis 2018
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Post, W. (author)Over the past decade, many different strategies were developed to introduce selfhealing properties in structural polymer composite materials. Although many of the investigated routes show promising results on an academic scale, the first commercially feasible self-healing structural polymer composite has yet to be developed. The main objective...doctoral thesis 2017
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Deutz, D.B. (author)The main objective of this thesis was to develop new piezoelectric ceramic polymer<br/>composites that maintain the ease of manufacturing of random composites and<br/>could function as a human touch sensor, while simultaneously exploring their potential as energy harvesters.doctoral thesis 2017
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Farle, A.M. (author)Damage management and the development of new materials come together in selfhealing Mn+1AXn phase ceramics. These ternary layered carbides and nitrides exhibit a multitude of properties, such as high temperature strength, fracture toughness, thermal and electrical conductivity and machinability, which have been discovered over the past 20 years....doctoral thesis 2017
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Shen, L. (author)The excellent mechanical properties in combination with the capability to autonomously repair microcracks when exposed to air of high temperatures make certain MAX phase metallo ceramics promising candidate materials for components in a turbine engine, in particular for those components exposed to high temperatures and having the risk of being...doctoral thesis 2016
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- den Bakker, A.J. (author) doctoral thesis 2016
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