Results 91 to 100 of about 9,374,115 (225)

Controllable spin-glass behavior and large magnetocaloric effect in Gd-Ni-Al bulk metallic glasses

, 2012
Glass-forming ability, spin-glass (SG) behavior, and magnetocaloric effect in Gd55NixAl45-x (x？15, 20, 25, 30) metallic alloys were investigated. A ferromagnetic SG behavior was observed for glassy ribbons with compositions of x？15, 20, and 25, but it ...
沈宝龙
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Effect of Quenching and Normalizing on the Microstructure and Magnetocaloric Effect of a Cu–11Al–9Zn Alloy with 6.5 wt % Ni–2.5 wt % Fe

Magnetochemistry, 2019
First-order phase transitions (FOPT) and second-order phase transitions (SOPT) are commonly observed in Cu alloys containing lanthanide elements, due to their electronic configuration, and have an important effect on the optimization of their ...
E. J. Gutiérrez Castañeda, R. E. Barreras Castro, A. Contreras Briseño, B. Fernández Arguijo, A. A. Torres Castillo, A. Salinas Rodríguez, J. T. Elizalde Galindo, S. A. Palomares Sánchez   +7 more
doaj   +1 more source

Co doping enhanced giant magnetocaloric effect in Mn1-xCoxAs films epitaxied on GaAs (001)

, 2010
A giant magnetocaloric effect was found in series of Mn1-xCoxAs films epitaxied on GaAs (001). The maximum magnetic entropy change caused by a magnetic field of 4 T is as large as 25 J/kg K around room temperature, which is about twice the value of pure ...
Nie SH (Nie S. H.), Chen L (Chen L.), Zhao JH (Zhao J. H.), Meng KK (Meng K. K.), Xu PF (Xu P. F.), Wang SL (Wang S. L.)   +5 more
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Magnetocaloric properties of metallic nanostructures

Cogent Engineering, 2015
A compilation of magnetocaloric properties of metallic nanostructures with Curie temperature (TC) between 260 and 340 K has been tabulated. The tabulated data show that nanostructure plays an important role in enhancing the magnetocaloric properties of a
Khurram S. Khattak, Amir Aslani, Chidubem A. Nwokoye, Abid Siddique, Lawrence H. Bennett, Edward Della Torre   +5 more
doaj   +1 more source

Tunable magnetocaloric effect in RTi

, 2007
The tetragonal layered compounds TbTiGe and ErTiGe order antiferromagnetically at 276 K and 39 K, respectively. Partial substitution of Mo for Ti in these two compounds modifies the magnetic interactions giving rise to a ferromagnetic ground state ...
S. K. Malik, R. Nirmala
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Magnetocaloric Properties of Melt-Extracted Medium Entropy Gd₃₃Co₃₃Al₃₄ Microfibers

Metals
In this paper, a new medium entropy alloy with nominal composition of Gd33Co33Al34 was designed and fabricated into microfibers by a melt-extraction method.
Ning Zhang, Hongxian Shen, Lin Luo, Jingshun Liu, Zijian Zhao, Lunyong Zhang, Jianfei Sun, Manh-Huong Phan   +7 more
doaj   +1 more source

Direct measurements of the conventional and rotational magnetocaloric effects in Gd thick films

International audienceMagnetic refrigeration (MR) offers a sustainable and emission-free solution to the prevalent heat-pumping systems used worldwide.
Pereira, C, Kiefe, R, Amaral, J, Wosnitza, J, Gottschall, T, Niehoff, T, Silva, D, Devillers, Thibaut, Belo, J, Fontana, E, Dempsey, Nora, Almeida, R   +11 more
core   +1 more source

Compatibility of LaFe_13−x−yMn_xSi_yH_1.6 and Eutectic Liquid GaInSn Alloy

Magnetochemistry
The heat transfer rate of magnetocaloric regenerators is a topic of extensive research and the cyclability of these regenerators is critical to the operation of systems with a high coefficient of performance (e.g., potentially >22, significantly higher ...
Jamieson Brechtl, Joseph Rendall, Mingkan Zhang, Michael R. Koehler, Kashif Nawaz, Ayyoub M. Momen   +5 more
doaj   +1 more source

Magnetic and Magnetocaloric Characteristics of Mixed Manganese Pnictides

Substituted MnAs0.97P0.03 manganese arsenide is prepared, and its structural, magnetic, and magnetocaloric properties are studied. At ~260 K, an abrupt decrease in the magnetization of the sample is observed, which is interpreted as a ferromagnetic ...
Ткаченко, Тамара Михайловна, Kuznetsovc, A. S., Anikeevd, S. G., Zheludkevicha, A. L., Mitsiuka, V. I., Val’kovb, V. I., Berdyeve, U., Tkachenko, Tamara Mikhailovna, Mashirovc, A. V., Golovchanb, A. V.   +9 more
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Peltier cell calorimetry “as an option” for commonplace cryostats: Application to the case of MnFe(P,Si,B) magnetocaloric materials

Fundamental Research
Peltier cell calorimetry is a powerful technique to record both the heat capacity and the latent heat, yet its availability is limited as it often requires homemade dedicated cryostats.
J.Y. Xu, F. Guillou, H. Yibole, V. Hardy
doaj   +1 more source