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Eivani, A.R. (author), Mehdizade, M. (author), Chabok, S. (author), Zhou, J. (author)Magnesium alloys have many unique properties, mostly benefitting from the low density of magnesium. However, they are not competitive, when compared with other lightweight materials, such as aluminum alloys, particularly in ductility and corrosion resistance. There is a strong need to improve the mechanical properties and corrosion resistance...journal article 2021
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Verma, N. (author), Delhez, R. (author), van der Pers, N.M. (author), Tichelaar, F.D. (author), Bottger, A.J. (author)In this work, we studied the mechanical and thermal stability of ~100 nm Pd thin films magnetron sputter deposited on a bare oxidized Si(100) wafer, a sputtered Titanium (Ti) intermediate layer, and a spin-coated Polyimide (PI) intermediate layer. The dependence of the film stability on the film morphology and the film-substrate interaction...journal article 2021
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Lescur, A. (author), Stergar, E. (author), Lim, J. (author), Hertelé, S. (author), Petrov, R.H. (author)MYRRHA (Multi-purpose hYbrid Research Reactor for High-tech Applications) is an accelerator driven system, currently under development at SCK CEN in Mol, Belgium. This nuclear system will use liquid Lead-Bismuth eutectic alloy as a spallation target for fast neutron production and as coolant. The ideal structural material for a liquid metal...journal article 2021
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Kluge, C. (author), Blöcher, Guido (author), Barnhoorn, A. (author), Schmittbuhl, Jean (author), Bruhn, D.F. (author)Using an innovative experimental set-up (Punch-Through Shear test), we initiated a shear zone (microfault) in Flechtingen sandstone and Odenwald granite under in situ reservoir conditions while monitoring permeability and fracture dilation evolution. The shear zone, which has a cylindrical geometry, is produced by a self-designed piston...journal article 2021
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Rong, Jian (author), Zhu, Jia-Ning (author), Xiao, Wenlong (author), Zhao, Xinqing (author), Ma, Chaoli (author)Thermal conductivity is a key parameter for high performance material needed for electronic devices. While most commercially used Mg foundry alloys exhibit low thermal conductivities. In this work, we developed an Mg–3RE–0.5Zn alloy that is suitable for high pressure die cast (HPDC) ultrathin wall cellphone components. The thermal...journal article 2021
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Jiang, Quanxin (author), Morete Barbosa Bertolo, V. (author), Popovich, V. (author), Sietsma, J. (author), Walters, C.L. (author)Macroscale cleavage fracture toughness of high strength steels is strongly related to the fracture of hard microstructural inclusions. Therefore, an accurate determination of the local stress on these inclusions based on the matrix stress is necessary for the statistical modelling of macroscale cleavage fracture. This paper presents...journal article 2021
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Lubelli, B. (author), Nijland, Timo G. (author), van Hees, R.P.J. (author)Compatibility of repair materials in conservation is a widely desired goal, but difficult to achieve. In this research, the compatibility of four commercial stone repair mortars, commonly used in conservation practice in the Netherlands and neighbouring countries, is discussed. In order to do so, they have been characterized in laboratory....journal article 2021
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Gomarasca, S. (author), Peeters, D.M.J. (author), Atli-Veltin, B. (author), Dransfeld, C.A. (author)Understanding the three-dimensional variability of unidirectional composites is relevant to the material performance and the development of advanced material modelling strategies. This work proposes a new methodology for the characterization of unidirectional composites, showcased on carbon fibre/poly(ether-ether-ketone) tapes. Three...journal article 2021
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Zhang, Shizhe (author), Li, Z. (author), Ghiassi, B. (author), Yin, Suhong (author), Ye, G. (author)This study presents a comprehensive experimental investigation on the fracture properties of hardened alkali-activated slag/fly ash (AASF) pastes in relation to the microstructure formation and reaction product composition. The main reaction product in AASF is C-(N-)A-S-H gel along with minor hydrotalcite phase, with the polymerization of C-...journal article 2021
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Fu, J. (author), Davis, T. P. (author), Kumar, A. (author), Richardson, I.M. (author), Hermans, M.J.M. (author)Oxide dispersion strengthened (ODS) steels are leading candidates for structural materials in nuclear fission and fusion power plants. Understanding the nature of nano-oxide particles in ODS steels is vital for a better control of the microstructure and mechanical properties to further their applications. In this study, electron microscopy...journal article 2021
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Yalçinkaya, Ç. (author), Copuroglu, Oguzhan (author)Ultra-high performance concrete (UHPC) is an innovative cement-based composite with high mechanical performance under tensile and compressive loads, extremely low permeability, and excellent durability. Because of these features, UHPC has the potential to contribute to the development of new architectural perspectives and structural systems...journal article 2021
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Yalçinkaya, Ç. (author), Copuroglu, Oguzhan (author)Ultra-high performance concrete (UHPC), which typically contains extremely high superplasticizer amount, tends to render a special type of dense surface layer, especially under drying conditions. Even if the inner side of fresh UHPC is still in a flowable nature, the top surface of the concrete which is exposed to ambient conditions renders a...journal article 2021
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Wong, H.S. (author), Poole, A.B. (author), Wells, B. (author), Eden, M. (author), Barnes, R. (author), Ferrari, J. (author), Fox, R. (author), Yio, M.H.N. (author), Copuroglu, Oguzhan (author)Water to cement (w/c) ratio is usually the most important parameter specified in concrete design and is sometimes the subject of dispute when a shortfall in concrete strength or durability is an issue. However, determination of w/c ratio in hardened concrete by testing is very difficult once the concrete has set. This paper presents the...journal article 2020
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Romero Rodriguez, C. (author), França de Mendonça Filho, F. (author), Chaves Figueiredo, S. (author), Schlangen, E. (author), Šavija, B. (author)Recent studies have shown that concrete containing Phase Change Materials (PCM) with low transition temperatures may reduce the number of freeze/thaw cycles suffered by the cementitious composite in temperate climates. Nevertheless, the positive influence of such admixtures on the frost resistance of cement-based materials has not been...journal article 2020
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Zhang, H. (author), Xu, Y. (author), Gan, Y. (author), Chang, Z. (author), Schlangen, E. (author), Šavija, B. (author)Application of micromechanical modelling of hydrated cement paste (HCP) gains more and more interests in the field of cementitious materials. One of the most promising approaches is the use of so-called microstructure informed micromechanical models, which provides a direct link between microstructure and mechanical properties. In order to...journal article 2020
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Fu, J. (author), van Slingerland, J. (author), Brouwer, J.C. (author), Bliznuk, Vitaliy (author), Richardson, I.M. (author), Hermans, M.J.M. (author)Pulsed laser beam welding was used successfully to join the oxide dispersion-strengthened (ODS) Eurofer steel. The joining was conducted with a laser power of 2500 W and a pulsed duration of 4 ms. With the filler material being used, a minor material loss and microvoids were observed in the joint. The microstructure of the fusion zone...journal article 2020
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Siang Ng, Ding (author), Paul, Suvash Chandra (author), Anggraini, Vivi (author), Kong, Sih Ying (author), Qureshi, Tanvir Shams (author), Romero Rodriguez, C. (author), Liu, Qing feng (author), Šavija, B. (author)This study explores the effects of different types of nanoparticles, namely nano-SiO<sub>2</sub> (NS), nano-TiO<sub>2</sub> (NT), and nano-Fe<sub>2</sub>O<sub>3</sub> (NF) on the fresh properties, mechanical properties, and microstructure of cement mortar containing fly ash as a supplementary cementitious material. These nanoparticles existed...journal article 2020
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Fu, J. (author), Brouwer, J.C. (author), Hendrikx, R.W.A. (author), Richardson, I.M. (author), Hermans, M.J.M. (author)The present work deals with oxide dispersion strengthened (ODS) Eurofer steel fabricated by powder metallurgy involving mechanical alloying and spark plasma sintering. A heat treatment route including normalising and tempering was applied to the as-produced steel, based on differential scanning calorimetry (DSC) measurement. The...journal article 2020
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Azizi, Arash (author), Musso, Guido (author), Jommi, C. (author)Soils used in earth construction projects are mostly unsaturated, and they undergo frequent drying–wetting cycles (repeated hydraulic loads) due to changes in climatic conditions or variations of the ground water level, particularly at shallow depths. After compaction, changes in water content can significantly influence the hydromechanical...journal article 2020
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Polozov, Igor (author), Kantyukov, Artem (author), Goncharov, Ivan (author), Razumov, Nikolay (author), Silin, Alexey (author), Popovich, V. (author), Zhu, Jia-Ning (author), Popovich, Anatoly (author)In this paper, laser powder-bed fusion (L-PBF) additive manufacturing (AM) with a high-temperature inductive platform preheating was used to fabricate intermetallic TiAl-alloy samples. The gas atomized (GA) and mechanically alloyed plasma spheroidized (MAPS) powders of the Ti-48Al-2Cr-2Nb (at. %) alloy were used as the feedstock material. The...journal article 2020