Searched for: author%3A%22van+der+Zwaag%2C+S.%22
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Stuber, V.L. (author), Mkhoyan, T. (author), De Breuker, R. (author), van der Zwaag, S. (author)
This paper presents an experimental method to detect in-situ the location of transition on a multi-segmental trailing edge camber morphing wing during synchronous and asynchronous morphing. The wing consists of six independently morphing segments with two of the segments instrumented with eight embedded piezoelectric sensors distributed...
journal article 2022
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Stuber, V.L. (author), Kotsonis, M. (author), van der Zwaag, S. (author)
Two piezoelectric series bimorph sensors were embedded below the skin of a NACA 0012 symmetrical airfoil to detect the local state of the boundary layer during wind tunnel testing. Small vanes piercing the airfoil skin were glued onto the bimorphs providing a mechanical coupling to the local mechanical force fluctuations imparted by the local...
journal article 2022
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Fernando, Niranjala (author), Veldhuizen, H.V. (author), Nagai, Atsushi (author), van der Zwaag, S. (author), Abdelkader, Amor (author)
Nanoporous polymers are becoming increasingly interesting materials for electrochemical applications, as their large surface areas with redox-active sites allow efficient adsorption and diffusion of ions. However, their limited electrical conductivity remains a major obstacle in practical applications. The conventional approach that alleviates...
journal article 2022
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Montano, V. (author), Urban, Marek W. (author), van der Zwaag, S. (author), Garcia, Santiago J. (author)
Autonomous through-thickness scratch repair (healing) in coatings requires scratch closure and interfacial molecular sealing. Although qualitative aspects of the first stage of self-healing have been addressed, quantitative description enabling the control over the healing process need further understanding. In this work the polymer-architecture...
journal article 2022
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Dong, Haokai (author), Chen, Hao (author), Riyahi khorasgani, Ahmadreza (author), Zhang, Boning (author), Zhang, Yongjie (author), Wang, Zhenqiang (author), Zhou, Xiaosheng (author), Wang, Wei (author), van der Zwaag, S. (author)
Mo is widely used as an effective microalloying element to improve mechanical performance of interphase precipitation steels, but the precise role of Mo in interphase precipitation behavior is not fully understood. In this contribution, interphase precipitation behavior in a series of Ti-Mo-bearing low carbon steels is systematically studied,...
journal article 2022
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Ponnusami, Sathiskumar Anusuya (author), Krishnasamy, J. (author), Turteltaub, S.R. (author), van der Zwaag, S. (author)
The influence of the cohesive zone length on the crack driving force is quantified and analyzed in a representative system of particles dispersed in a matrix of a composite material. For heterogeneous material systems, e.g. particulate composites, it is known that as a crack approaches the particles, the crack driving force may increase ...
journal article 2022
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Xu, K. (author), Liu, J. D. (author), van der Zwaag, S. (author), Xu, W. (author), Li, J. G. (author)
A universal numerical model based on the particle size distribution (PSD) approach has been developed for the simulation of precipitation kinetics in multicomponent alloys during isothermal ageing. Nucleation was implemented utilizing the classical nucleation theory (CNT). Growth and coarsening were modeled by a single growth kinetics...
journal article 2022
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Zhang, Z. (author), Duan, X. (author), Jia, Dechang (author), Zhou, Y. (author), van der Zwaag, S. (author)
MAX phases are a family of ternary carbide or nitride ceramics possessing a layered crystal structure and, due to their chemical bonds having a mixed covalent-ionic-metallic nature, have unique properties combining those of metals and ceramics. In this review, the formation mechanisms of MAX phases from elemental and compound powders are...
review 2021
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Li, Cong (author), Ding, Zhili (author), van der Zwaag, S. (author)
Isothermal hot compression tests of two promising new titanium alloys (Ti-10 V-1Fe-3Al and Ti-10 V-2Cr-3Al) are performed using a TA DIL805D deformation dilatometer at temperatures in and above the two-phase α + β region (730–880 °C) at strain rates ranging from 10<sup>−3</sup> to 10<sup>−1</sup> s<sup>−1</sup>. Results show that the flow...
journal article 2021
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Shen, Chunguang (author), Wang, Chenchong (author), Huang, Minghao (author), Xu, Ning (author), van der Zwaag, S. (author), Xu, W. (author)
We present an electron backscattered diffraction (EBSD)-trained deep learning (DL) method integrating traditional material characterization informatics and artificial intelligence for a more accurate classification and quantification of complex microstructures using only regular scanning electron microscope (SEM) images. In this method, EBSD...
journal article 2021
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Fang, H. (author), van der Zwaag, S. (author), van Dijk, N.H. (author)
A computational 3D model that accounts for both nucleation and interface migration is a very useful tool to monitor and grasp the complexity of microstructure formation in low-alloyed steels. In the present study we have developed a 3D mixed-mode multigrain model for the austenite-ferrite and the austenite-ferrite-austenite formation capable...
journal article 2021
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Hedayati, R. (author), Güven, Aysun (author), van der Zwaag, S. (author)
Materials with a negative Poisson's ratio, also known as auxetics, have attracted a lot attention as they have shown innovation potential in applications for energy damping, modern fasteners, biomedical implants, piezoelectric sensors, and soft actuators. In this study, we introduce different patterns of graded distribution of unit cells with...
journal article 2021
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Tuluk, A. (author), Mahon, T.R. (author), van der Zwaag, S. (author), Groen, W.A. (author)
BiFeO<sub>3</sub> is an interesting multiferroic material with potential use in sensors and transducers. However, the high coercive field and low dielectric strength of this material make the poling process extremely difficult. Poling becomes a lot easier if the ceramic particles are incorporated in a non-conductive polymer with comparable...
journal article 2021
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Montano, V. (author), Vogel, Wouter (author), Smits, Angela (author), van der Zwaag, S. (author), Garcia, Santiago J. (author)
The effects of the soft block fraction and H-bond state in thermoplastic polyurethanes on autonomous entropy-driven scratch closure and barrier restoration are studied. To this aim, comparable polyurethanes with different segmentation states are applied as organic coatings on plain carbon steel plates, scratched under very well-controlled...
journal article 2021
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Dai, Zongbiao (author), Chen, Hao (author), Ding, Ran (author), Lu, Qi (author), Zhang, Chi (author), Yang, Zhigang (author), van der Zwaag, S. (author)
Over many decades, significant efforts have been made to improve the strength-elongation product of advanced high strength steels (AHSSs) by creating tailored multi-phase microstructures. Successive solid-state phase transformations for steels with a well selected chemical composition turned out to be the key instrument in the realisation of...
review 2021
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Wiessner, Manfred (author), Angerer, Paul (author), van der Zwaag, S. (author), Gamsjäger, Ernst (author)
We describe the analysis of in-situ HT-XRD data of a dual phase stainless steel exposed to a complex thermal cycle of heating, holding and cooling. For the conditions used only low quality diffraction data could be collected. Peak positions, peak areas and peak broadening are modeled by the Rietveld method. The low signal-to noise ratio and...
journal article 2021
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Kuś, G.I. (author), van der Zwaag, S. (author), Bessa, M.A. (author)
Gaussian processes are well-established Bayesian machine learning algorithms with significant merits, despite a strong limitation: lack of scalability. Clever solutions address this issue by inducing sparsity through low-rank approximations, often based on the Nystrom method. Here, we propose a different method to achieve better scalability...
journal article 2021
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van der Jagt, R. (author), Vasileiadis, A. (author), Veldhuizen, H.V. (author), Ganapathy, S. (author), Habisreutinger, N.C.P. (author), van der Veen, M.A. (author), Wang, C. (author), Wagemaker, M. (author), van der Zwaag, S. (author), Nagai, A. (author)
Covalent organic frameworks (COFs) are an emerging material family having several potential applications. Their porous framework and redox-active centers enable gas/ion adsorption, allowing them to function as safe, cheap, and tunable electrode materials in next-generation batteries, as well as CO2 adsorption materials for carbon-capture...
journal article 2021
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Mahon, T.R. (author), Giannopoulos, D. (author), van der Zwaag, S. (author), Groen, W.A. (author)
In this work, we present the impact of using Na<sub>2</sub>CO<sub>3</sub> as a sintering aid and grain growth agent on the crystal structure, microstructure, and piezoelectric properties of (Bi<sub>0.5</sub>Na<sub>0.5</sub>)TiO<sub>3</sub> ceramics. The addition of Na<sub>2</sub>CO<sub>3</sub> leads to a substantial increase in the grain size...
journal article 2021
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Lan, H. (author), Tang, S. (author), DU, Linxiu (author), LI, Jianping (author), van der Zwaag, S. (author)
The combined effects of the initial microstructure and heating rate on ferrite recrystallization, austenite formation and transformation kinetics of a regular ferrite-martensite dual phase steel are investigated. Special attention is given to the effect of the martensite distribution on mechanical properties, particularly the bendability....
journal article 2021
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