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Impact of fast-solidification on all-d-metal NiCoMnTi based giant magnetocaloric Heusler compounds

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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Advanced Magnetocaloric Materials for Energy Conversion: Recent Progress, Opportunities, and Perspective

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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Impact of W doping on Fe-rich (Mn,Fe)₂(P,Si) based giant magnetocaloric materials

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)₂(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_C and retain the thermal...

journal article 2023

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Magnetoelastic transition and negative thermal expansion of Fe₂Hf_0.83Ta_0.17 ribbons

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 Fe₂Hf_0.83Ta_0.17 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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Competing magnetic interactions, structure and magnetocaloric effect in Mn₃Sn_1-xZn_xC antiperovskite carbides

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 Mn₃Sn_1-_xZn_xC antiperovskite carbides have been studied. With increasing Zn content the first-order magnetic transition (FOMT) is weakened. The Curie temperature (T_C) reduces first from 273 to 197 K and when x > 0.3, T_C...

journal article 2023

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Strong magnetoelastic coupling in MnCoSi compounds studied in pulsed magnetic fields

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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Exploring the negative thermal expansion and magnetocaloric effect in Fe₂(Hf,Ti) Laves phase materials

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 Fe₂Hf_1-_xTi_x (x = 0.15, 0.27, 0.30, 0.33, 0.36...

journal article 2023

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Effect of off-stoichiometry and Ta doping on Fe-rich (Mn,Fe)₂(P,Si) based giant magnetocaloric materials

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)₂(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_tr, while the...

journal article 2023

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How the Built Environment Promotes Residents’ Physical Activity: The Importance of a Holistic People-Centered Perspective

Zhang, Yufang (author), van Dijk, Terry (author), Wagenaar, C. (author)

Promoting adequate physical activity (PA) such as walking and cycling is essential to cope with the global health challenge of non-communicable diseases (NCDs). Much research has been conducted to analyze how the built environment can promote PA, but the results are not consistent. Some scholars found that certain built environments such as...

journal article 2022

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Magnetocaloric effect in the (Mn,Fe)₂(P,Si) system: From bulk to nano

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)₂(P,Si)-based materials, which are one of the most promising bulk materials for solid-state...

journal article 2022

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Nonlinear influence of excess Mn on the magnetoelastic transition in (Mn,Cr)₂Sb

Shen, Q. (author), Batashev, I. (author), Ojiyed, Hamutu (author), Zhang, F. (author), van Dijk, N.H. (author), Brück, E.H. (author)

The influence of excess Mn on the magnetoelastic ferromagnetic-to-antiferromagnetic transition T_t in the magnetocaloric compound (Mn,Cr)₂Sb has been studied. With increasing excess Mn the magnetoelastic transition temperature for (Mn,Cr)₂Sb initially increases and then decreases. This trend is accompanied by a...

journal article 2022

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Enhanced reversibility of the magnetoelastic transition in (Mn,Fe)₂(P,Si) alloys via minimizing the transition-induced elastic strain energy

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)₂(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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Effect of Co and Ni doping on the structure, magnetic and magnetocaloric properties of Fe-rich (Mn,Fe)₂(P,Si) compounds

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)₂(P,Si) compounds was studied. With increasing Co and Ni content, both the Curie temperature (T_c) and the thermal hysteresis (ΔT_hys) decreased, whereas the hexagonal P-62 m crystal structure was maintained...

journal article 2022

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Impact of F and S doping on (Mn,Fe)₂(P,Si) giant magnetocaloric materials

Zhang, F. (author), Batashev, I. (author), Shen, Q. (author), Wu, Z. (author), Smith, Ronald I. (author), de Wijs, Gilles A. (author), van Dijk, N.H. (author), Brück, E.H. (author)

The quarternary (Mn,Fe)₂(P,Si)-based materials with a giant magnetocaloric effect (GMCE) at the ferromagnetic transition T_C are promising bulk materials for solid-state magnetic refrigeration. In the present study we demonstrate that doping with the light elements fluorine and sulfur can be used to adjust T_C...

journal article 2022

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The second-order magnetic phase transition and magnetocaloric effect in all-d-metal NiCoMnTi-based Heusler alloys

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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Reduced Hysteresis and Enhanced Giant Magnetocaloric Effect in B-Doped all- d -Metal Ni - Co - Mn - Ti -Based Heusler Materials

Zhang, F. (author), Batashev, I. (author), van Dijk, N.H. (author), Brück, E.H. (author)

The all-d-metal Ni-(Co)-Mn-Ti-based Heusler alloys are found to show a giant magnetocaloric effect near room temperature and are thereby potential materials for solid-state refrigeration. However, the relative large thermal hysteresis and the moderate ferromagnetic magnetization provides limitations for real applications. In the present study...

journal article 2022

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Precipitation of supersaturated solute in H ion irradiated Fe-Au and Fe-Au-W alloys studied by positron annihilation spectroscopy

Zhang, Z. (author), Zhang, S. (author), Yao, Z. (author), Tao, X. (author), Cao, X. (author), Zhang, P. (author), Kuang, P. (author), Fu, Y. (author), van Dijk, N.H. (author), van der Zwaag, S. (author)

The effect of thermal aging of homogenized Fe-Au and Fe-Au-W alloys, irradiated at room temperature with hydrogen ions, was studied for an aging treatment at 300 °C for aging times up to 100 h. The aging behavior of the Fe-based alloys is compared to the results for pure Fe. The precipitation behavior of Au-rich and W-rich precipitates and...

journal article 2021

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The antiferromagnetic to ferrimagnetic phase transition in Mn₂Sb_1-xBi_x compounds

Shen, Q. (author), Batashev, I. (author), Zhang, F. (author), Ojiyed, Hamutu (author), van Dijk, N.H. (author), Brück, E.H. (author)

The influence of partial substitution of Bi for Sb on the structure, magnetic properties and magnetocaloric effect of Mn₂Sb_1-xBi_x (x = 0, 0.02, 0.04, 0.05, 0.07, 0.09, 0.15, 0.20) compounds has been investigated. The transition temperature of the antiferro-to-ferrimagnetic (AFM-FIM) transition initially...

journal article 2021

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A Review of Self-healing Metals: Fundamentals, Design Principles and Performance

Zhang, Shasha (author), van Dijk, N.H. (author), van der Zwaag, S. (author)

Self-healing metals possess the capability to autonomously repair structural damage during service. While self-healing concepts remain challenging to be realized in metals and metallic systems due to the small atomic volume of the mobile atoms, the slow diffusion unless at high temperatures and the strong isotropic metallic bonds, the...

review 2020

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Self healing of radiation-induced damage in Fe–Au and Fe–Cu alloys: Combining positron annihilation spectroscopy with TEM and ab initio calculations

Zhang, Shasha (author), Cizek, Jakub (author), Yao, Zhengjun (author), Oleksandr, Moliar (author), Kong, Xiangshan (author), Liu, Changsong (author), van Dijk, N.H. (author), van der Zwaag, S. (author)

Self healing of early stage radiation damage by site selective solute segregation is a promising approach to extend the lifetime of nuclear reactor components. In the present study, the creation and autonomous healing of irradiation-induced damage is investigated in pure Fe and high purity Fe–Au and Fe–Cu model alloys. To create radiation...

journal article 2020