Searched for: author%3A%22van+Dijk%2C+N.H.%22
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Gai, H. (author), van Dijk, N.H. (author), Brück, E.H. (author)
The transition-metal based alloy system YNi <sub>4-x</sub>Co <sub>x</sub>Si shows a second-order ferromagnetic-to-paramagnetic transition near room temperature. Here, the magnetic structure, the magnetocaloric properties and the magnetic anisotropy of YNi <sub>4-x</sub>Co <sub>x</sub>Si (x = 0–4) are investigated. For x = 3.5, 3.75 and 4.0 a...
journal article 2024
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Zhang, F. (author), van Dijk, N.H. (author), Brück, E.H. (author), Ren, Yang (author)
The emerging all-d-metal Ni(Co)MnTi-based Heusler compounds attract extensive attention because it can potentially be employed for solid-state refrigeration. However, in comparison to the abundant physical functionalities in bulk conditions, the hidden properties related to the NiCoMnTi-based Heusler nanoparticles (NPs) have not yet been...
journal article 2024
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Ojiyed, Hamutu (author), van den Berg, Maarten (author), Batashev, I. (author), Shen, Q. (author), van Dijk, N.H. (author), Brück, E.H. (author)
The magnetocaloric properties of Mn<sub>5</sub>Si<sub>1-x</sub>P<sub>x</sub>B<sub>2</sub> (0 ≤ x ≤ 1) compounds were studied for energy harvesting applications. The crystal structure and the magnetic structure were characterized by powder X-Ray Diffraction and powder Neutron Diffraction. The results indicate that these magnetocaloric...
journal article 2024
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Zhang, F. (author), Wu, Z. (author), Wang, Jianlin (author), Wu, Zhenduo (author), Zhao, C. (author), Eijt, S.W.H. (author), Schut, H. (author), van Dijk, N.H. (author), Brück, E.H. (author)
Recently, the all-d-metal Ni(Co)MnTi based Heusler compounds are found to have a giant magnetocaloric effect (GMCE) near room temperature and manifest different functionalities like multicaloric effects, which can be employed for solid-state refrigeration. However, in comparison to other traditional Heusler compounds, the relatively large...
journal article 2024
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Lai, J. (author), Huang, B. (author), You, X. (author), Maschek, M. (author), Zhou, Guofu (author), van Dijk, N.H. (author), Brück, E.H. (author)
The Fe<sub>2</sub>P type Mn–Fe–P–Si alloys exhibit a giant magneto-elastic first-order transition, but the large hysteresis limits their performance. Crystal structure evolution and magnetocaloric performance were investigated by varying the Mn and Fe contents at a constant V substitution of 0.02 in Fe<sub>2</sub>P-type (Mn<sub>1.17-x</sub>Fe...
journal article 2024
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Zhang, F. (author), Miao, Xuefei (author), van Dijk, N.H. (author), Brück, E.H. (author), Ren, Yang (author)
Solid-state caloric effects as intrinsic thermal responses to different physical external stimuli (magnetic-, uniaxial stress-, pressure-, and electric-fields) can achieve a higher energy efficiency compared with traditional gas compression techniques. Among these effects, magnetocaloric energy conversion is regarded as the best available...
review 2024
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Zhang, F. (author), Smits, Sebastian (author), Kiecana, A. (author), Batashev, I. (author), Shen, Q. (author), van Dijk, N.H. (author), Brück, E.H. (author)
The influence of doping with the 5d transition metal W has been studied in the quaternary (Mn,Fe)<sub>2</sub>(P,Si) based giant magnetocaloric compounds, which is one of the most promising systems for magnetic refrigeration. It is found that W substitution can separately decrease the Curie temperature T<sub>C</sub> and retain the thermal...
journal article 2023
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Kiecana, A. (author), Kwakernaak, C. (author), van Dijk, N.H. (author), Brück, E.H. (author)
The effect of the heat treatment on the magnetism, magnetocaloric effect and microstructure formation has been systematically studied in Fe-rich (Mn,Fe)<sub>y</sub>(P,Si) melt-spun ribbons (1.80 ≤ y ≤ 2.00). XRD, SEM and EDS measurements demonstrate that a metal deficiency prompts the stable (Mn,Fe)Si phase, whereas in the metal-rich region...
journal article 2023
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Zhang, F. (author), Batashev, I. (author), van Dijk, N.H. (author), Brück, E.H. (author)
The influence of off-stoichiometry and of doping with the 5d transition metal Ta has been studied in the quaternary (Mn,Fe)<sub>2</sub>(P,Si)-based compound, which is one of the most promising materials systems for magnetic refrigeration. It is found that Ta substitution can decrease the transition temperature T<sub>tr</sub>, while the...
journal article 2023
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Zhang, F. (author), Bykov, Eduard (author), Gottschall, Tino (author), van Dijk, N.H. (author), Brück, E.H. (author)
The orthorhombic MnCoSi compounds have been found to present a large magnetoelastic coupling, which is regarded as the source for the magnetocaloric effect (MCE) and the magnetostrictive effect. As a result, these compounds are potential materials for caloric applications such as solid-state refrigeration. In the present study, we offer...
journal article 2023
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Shen, Q. (author), Batashev, I. (author), Zhang, F. (author), Ojiyed, Hamutu (author), Dugulan, A.I. (author), van Dijk, N.H. (author), Brück, E.H. (author)
The transition-metal based Laves phase materials represent an extended family of alloys with rich and fascinating physical properties. In this work, we have investigated the negative thermal expansion and magnetocaloric effect in arc-melted and melt-spun Fe<sub>2</sub>Hf<sub>1-</sub><sub>x</sub>Ti<sub>x</sub> (x = 0.15, 0.27, 0.30, 0.33, 0.36...
journal article 2023
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Kiecana, A. (author), Schaefers, W. (author), Thijs, M. (author), Dankelman, B.J.R. (author), Ojiyed, H. (author), Batashev, I. (author), Zhang, F. (author), van Dijk, N.H. (author), Brück, E.H. (author)
Structural, magnetic and magnetocaloric properties of Mn<sub>3</sub>Sn<sub>1-</sub><sub>x</sub>Zn<sub>x</sub>C antiperovskite carbides have been studied. With increasing Zn content the first-order magnetic transition (FOMT) is weakened. The Curie temperature (T<sub>C</sub>) reduces first from 273 to 197 K and when x &gt; 0.3, T<sub>C</sub>...
journal article 2023
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Shen, Q. (author), Zhang, F. (author), Dugulan, A.I. (author), van Dijk, N.H. (author), Brück, E.H. (author)
In this work, the magnetocaloric effect and negative thermal expansion in melt-spun Fe<sub>2</sub>Hf<sub>0.83</sub>Ta<sub>0.17</sub> Laves phase alloys were studied. Compared to arc-melted alloys, which undergo a first-order magnetoelastic transition from the ferromagnetic to the antiferromagnetic phase, melt-spun alloys exhibit a second...
journal article 2023
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Zhang, F. (author), Taake, Chris (author), Huang, B. (author), You, X. (author), Ojiyed, Hamutu (author), Shen, Q. (author), Dugulan, A.I. (author), Caron, Luana (author), van Dijk, N.H. (author), Brück, E.H. (author)
In the field of nanoscale magnetocaloric materials, novel concepts like micro-refrigerators, thermal switches, microfluidic pumps, energy harvesting devices and biomedical applications have been proposed. However, reports on nanoscale (Mn,Fe)<sub>2</sub>(P,Si)-based materials, which are one of the most promising bulk materials for solid-state...
journal article 2022
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Miao, Xuefei (author), Gong, Yong (author), Zhang, F. (author), You, Yurong (author), Caron, Luana (author), Qian, Fengjiao (author), Xu, Feng (author), van Dijk, N.H. (author), Brück, E.H. (author)
Magnetocaloric materials undergoing reversible phase transitions are highly desirable for magnetic refrigeration applications. (Mn,Fe)<sub>2</sub>(P,Si) alloys exhibit a giant magnetocaloric effect accompanied by a magnetoelastic transition, while the noticeable irreversibility causes drastic degradation of the magnetocaloric properties...
journal article 2022
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Kiecana, A. (author), Batashev, I. (author), Dugulan, A.I. (author), Kwakernaak, C. (author), Pieter, L. (author), Zhang, F. (author), van Dijk, N.H. (author), Brück, E.H. (author)
The effect of Co and Ni doping on the structure, magnetic and magnetocaloric properties of Fe-rich (Mn,Fe)<sub>2</sub>(P,Si) compounds was studied. With increasing Co and Ni content, both the Curie temperature (T<sub>c</sub>) and the thermal hysteresis (ΔT<sub>hys</sub>) decreased, whereas the hexagonal P-62 m crystal structure was maintained...
journal article 2022
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Fu, Y. (author), van der Zwaag, S. (author), van Dijk, N.H. (author)
A set of numerical and analytical models is presented to predict the growth and contraction of grain-boundary creep cavities in binary self-healing alloys. In such alloys, the healing is realised by preferential precipitation of supersaturated solutes at the free surface of the cavity. The cavity grows due to the diffusional flux of vacancies...
journal article 2022
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Fu, Y. (author), Fang, H. (author), Monaco, F. (author), Cloetens, P. (author), Tichelaar, F.D. (author), van Meel, J.G. (author), Brück, E.H. (author), van der Zwaag, S. (author), van Dijk, N.H. (author)
Constant stress creep experiments at 550 °C were performed on a high-purity Fe-3Au-4W (wt.%) ternary alloy with about 1 at.% supersaturation for Au and W in order to study self healing of grain-boundary cavities by both Au-rich and W-rich precipitates. Using synchrotron X-ray nano-tomography, the development of the creep cavities and the...
journal article 2022
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Zhang, F. (author), Westra, Kevin (author), Shen, Q. (author), Batashev, I. (author), Kiecana, A. (author), van Dijk, N.H. (author), Brück, E.H. (author)
The novel all-d-metal Ni(Co)MnTi based magnetic Heusler alloys provide an adjustable giant magnetocaloric effect and good mechanical properties. We report that the second-order magnetic phase transition can be tailored in this all-d-metal NiCoMnTi based Heusler system by optimizing the Mn/Ti ratio, resulting in a reversible ferromagnetic-to...
journal article 2022
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Lai, J. (author), You, X. (author), Law, Jiayan (author), Franco, Victorino (author), Huang, B. (author), Bessas, Dimitrios (author), Maschek, M. (author), Zeng, Dechang (author), van Dijk, N.H. (author), Brück, E.H. (author)
Large thermal hysteresis in the (Mn,Fe)2(P,Si) system hinders an efficient heat exchange and thus limits the magnetocaloric applications. Substitution of manganese by vanadium in the Mn1-x1Vx1Fe0.95P0.593Si0.33B0.077 and Mn1-x2Vx2Fe0.95P0.563Si0.36B0.077 compounds enable a significant reduction in the thermal hysteresis without losing the giant...
journal article 2022
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