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Wikkerink, D.P. (author), Mor, A. R. (author), Polinder, H. (author), Ross, Robert (author)In order to avoid detection by sea mines, the magnetic signature of merchant and naval vessels can be reduced by running a current through a set of on-board copper coils. This process is called degaussing. Studies have shown that the volume, weight and energy losses of a degaussing system can be reduced by replacing the copper coils with high...conference paper 2019
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Khaliq, J. (author), Hoeks, Theo (author), Groen, W.A. (author)In this paper, we present a method to create a highly sensitive piezoelectric quasi 1–3 composite using a thermoplastic material filled with a piezoelectric powder. An up-scalable high-temperature dielectrophoresis (DEP) process is used to manufacture the quasi 1–3 piezoelectric polymer-ceramic composites. For this work, thermoplastic cyclic...journal article 2019
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Ayenampudi, S. (author), Celada-Casero, Carola (author), Sietsma, J. (author), Santofimia, Maria Jesus (author)Medium-Mn Quenching & Partitioning (Q&P) steels have been recently considered as potential candidates for the 3rd generation advanced high-strength steels. The processing of these steels aims to induce the partitioning of substitutional alloying elements from martensite to austenite during an isothermal treatment at high temperature,...journal article 2019
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Bei, G. (author), van der Zwaag, S. (author), Kota, Sanklap (author), Barsoum, Michel W. (author), Sloof, W.G. (author)The ultra-high temperature ablation of a polycrystalline, fully dense, predominantly single phase MoAlB ceramic discs under an oxyacetylene flame is examined. The linear ablation rate decreases from 1.3 μm/s during the first 30 s to - 0.7 μm/s after 60 s when the surface temperature reached about 2050 °C (with a flame temperature around 3000 °C)...journal article 2019
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Hou, F. (author), Wang, W. (author), Lin, Tingyu (author), Cao, Liqiang (author), Zhang, Kouchi (author), Ferreira, Jan Abraham (author)In this paper, a novel fan-out panel-level printed circuit board (PCB) embedded package technology for silicon carbide (SiC) MOSFET power module is presented to address parasitic inductances, heat dissipation, and reliability issues that are inherent with aluminum wires used in conventional packaging scheme. To withstand high temperature...journal article 2019
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Boatemaa, L. (author), van der Zwaag, S. (author), Sloof, W.G. (author)This work explores the possibility of using embedded micron-sized Ti particles to heal surface cracks in alumina and to unravel the evolution of the crack filling process in case of pure solid-state oxidation reactions. The oxidation kinetics of the Ti particles is studied and the results are applied in a simple model for crack-gap filling....journal article 2018
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Nozahic, Franck (author), Estournès, Claude (author), Carabat, A.L. (author), Sloof, W.G. (author), van der Zwaag, S. (author), Monceau, Daniel (author)The present paper focuses on the Spark Plasma Sintering (SPS) manufacturing of a new type of self-healing thermal barrier coating (TBC) and a study of its thermal cycling behaviour. The ceramic coating consists on an Yttria Partially Stabilized Zirconia (YPSZ) matrix into which healing agents made of MoSi<sub>2</sub>-Al<sub>2</sub>O<sub>3<...journal article 2018
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Abdelrady, Ahmed (author), Sharma, Saroj (author), Sefelnasr, Ahmed (author), Kennedy, M.D. (author)Dissolved organic matter (DOM) in source water highly influences the removal of different contaminants and the dissolution of aquifer materials during bank filtration (BF). The fate of DOM during BF processes under arid climate conditions was analysed by conducting laboratory-scale batch and column studies under different environmental...journal article 2018
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Manara, Dario (author), Soldi, Luca (author), Mastromarino, S. (author), Boboridis, Kostantinos (author), Robba, Davide (author), Vlahovic, Luka (author), Konings, R. (author)Major and severe accidents have occurred three times in nuclear power plants (NPPs), at Three Mile Island (USA, 1979), Chernobyl (former USSR, 1986) and Fukushima (Japan, 2011). Research on the causes, dynamics, and consequences of these mishaps has been performed in a few laboratories worldwide in the last three decades. Common goals of such...journal article 2017
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Zhao, J. (author), Zheng, J. (author), Peng, Gai Fei (author), van Breugel, K. (author)High-performance concrete (HPC) is vulnerable to spalling under high temperature conditions and it has been found that the heating rate can exert a tremendous effect on spalling of HPC. To prevent HPC from spalling, the heating rate effect should be understood. However, quantitative analyses are still lacking and the heating rate effect has...journal article 2017
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Liu, D. (author), Polinder, H. (author), Abrahamsen, Asger B. (author), Ferreira, Jan Abraham (author)This paper aims at assessing the potential of partially superconducting generators for 10 MW direct-drive wind turbines by investigating their performance for a very wide range of excitation currents. Performance indicators such as shear stress and efficiency and other generator characteristics are compared for 12 different generator topologies....journal article 2017
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Song, X. (author), Liu, D. (author), Polinder, H. (author), Mijatovic, Nenad (author), Holbøll, Joachim (author), Jensen, Bogi Bech (author)Direct drive high temperature superconducting (HTS) wind turbine generators have been proposed to tackle challenges for ever increasing wind turbine ratings. Due to smaller reactances in HTS generators, higher fault currents and larger transient torques could occur if sudden short circuits happen at generator terminals. In this paper, a finite...journal article 2017
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Sokolovskij, R. (author), Iervolino, E. (author), Zhao, Changhui (author), Wang, F. (author), Yu, Hongyu (author), Santagata, F. (author), Sarro, Pasqualina M (author), Zhang, Kouchi (author)This paper reports on the layout optimization of Pt-AlGaN/GaN HEMT-sensors for enhancing hydrogen sensor performance. Sensors with gate width and length ratios W<sub>g</sub>/L<sub>g</sub> from 0.25 to 10 were designed, fabricated and tested for the detection of hydrogen gas at 200 °C. Sensitivity, sensing current variation and transient...conference paper 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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Song, X. (author), Polinder, H. (author), Liu, D. (author), Mijatovic, Nenad (author), Holbøll, Joachim (author), Jensen, Bogi Bech (author)Direct drive high temperature superconducting (HTS) wind turbine generators have been proposed to tackle challenges for ever increasing wind turbine ratings. Due to smaller reactances in HTS generators, higher fault currents and larger transient torques could occur if sudden short circuits happen at generator terminals. In this paper, a finite...conference paper 2016
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An investigation on hybrid interface using on-line monitoring experiment and finite element analysesTruong, H.T.X. (author), Martinez, M.J. (author), Ochoa, O.O. (author), Lagoudas, D.C. (author)In this work, the hybrid interface between metal and thermosetting polymer matrix composite was studied via experimental and numerical investigations. Hybrid laminates, whose constituents are aluminum foil, carbon fabric and epoxy matrix, were manufactured using the vacuum assisted resin transfer molding process. Chromic anodization was used to...conference paper 2015
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Auwerda, G.J. (author)To more accurately predict the temperature distribution inside the reactor core of pebble bed type high temperature reactors, in this thesis we investigated the stochastic properties of randomly stacked beds and the effects of the non-homogeneity of these beds on the neutronics and thermal-hydraulics in the core of pebble bed reactors. To...doctoral thesis 2014
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- Zhang, Q. (author) doctoral thesis 2013
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Seshan, V. (author), Ullien, D. (author), Castellanos-Gomez, A. (author), Sachdeva, S. (author), Murthy, D.H.K. (author), Savenije, T.J. (author), Ahmad, H.A. (author), Nunney, T.S. (author), Janssens, S.D. (author), Haenen, K. (author), Nesládek, M. (author), Van der Zant, H.S.J. (author), Sudhölter, E.J.R. (author), De Smet, L.C.P.M. (author)A high-temperature procedure to hydrogenate diamond films using molecular hydrogen at atmospheric pressure was explored. Undoped and doped chemical vapour deposited (CVD) polycrystalline diamond films were treated according to our annealing method using a H2 gas flow down to ?50 ml/min (STP) at ?850?°C. The films were extensively evaluated by...journal article 2013
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Boatemaa, L. (author), Zhou, J. (author), Van der Zwaag, S. (author), Sloof, W.G. (author)Structural ceramics like alumina are usually brittle and sensitive to flaws leading to a reduction in their mechanical properties. This situation is worsened by machining prior to service and during service by contact, which introduces micro cracks and hidden damages. Crack damage can easily be developed in such ceramics when loaded, which often...conference paper 2013