Results 241 to 250 of about 2,816,913 (319)

Recent progresses in exploring the rare earth based intermetallic compounds for cryogenic magnetic refrigeration

, 2020
Nowadays, the magnetic materials with special functional characteristics are played very important roles in the development of our present modern society.
Lingwei Li, M. Yan
semanticscholar   +1 more source

Investigation of the Magnetic Refrigerant for the Ericsson Magnetic Refrigerator

Japanese Journal of Applied Physics, 1987
In the temperature range above ∼20 K, the Ericsson magnetic refrigeration cycle has to be adopted instead of the Carnot cycle, because the lattice entropy becomes no longer negligible as compared with the magnetic entropy. Moreover, in this range since the thermal agitation energy ∼kT of spin also increases, the ferromagnetic materials have to be ...
T. Hashimoto, T. Kuzuhara, K. Matsumoto, M. Sahashi, K. Inomata, A. Tomokiyo, H. Yayama   +6 more
openaire   +1 more source

Design of Excellent Mechanical Performances and Magnetic Refrigeration via In Situ Forming Dual‐Phase Alloys

Advances in Materials
Magnetic refrigeration technology can achieve higher energy efficiency based on the magnetocaloric effect (MCE). However, the practical application of MCE materials is hindered by their poor mechanical properties, making them challenging to process into ...
Hong Zhong, Yuzhu Song, Feixiang Long, Hao Lu, Minjun Ai, Tianyu Li, Yonghao Yao, Yuki Sakai, Masahito Ikeda, Kazuki Takahashi, Masaki Azuma, F. Hu, X. Xing, Jun Chen   +13 more
semanticscholar   +1 more source

Wide temperature span and giant refrigeration capacity magnetic refrigeration materials for hydrogen liquefaction

Applied Physics Letters
Based on theoretical calculations and experiments, the crystal structure, electronic structure, magnetism, and magnetocaloric effect (MCE) of the Ho5B2C5 compound have been systematically investigated.
L. Tian, Z. Mo, Jianjian Gong, Xinqiang Gao, Zhenxing Li, Jun Liu, Guodong Liu, Jun Shen   +7 more
semanticscholar   +1 more source

THE EFFICIENCY OF MAGNETIC REFRIGERATION AND A COMPARISON WITH COMPRESSOR REFRIGERATION SYSTEMS

Journal of Energy Technology
The objective of this paper is to study the magnetic refrigeration process that makes use of solid materials, such as gadolinium silicon compounds, as the refrigerant.
Botoc Dorin, A. Plesca, J. Avsec
semanticscholar   +1 more source

Magnetic refrigeration materials (invited)

Journal of Applied Physics, 1999
Research on the magnetocaloric effect and its application for cooling near room temperature over the past few years has helped to move this phenomenon from a scientific curiosity to an emerging technology. Two of the most important advances include the demonstration which proved that it is possible to obtain significant cooling powers (600 W) at high ...
K. A. Gschneidner, V. K. Pecharsky
openaire   +1 more source

Review on the materials and devices for magnetic refrigeration in the temperature range of nitrogen and hydrogen liquefaction

Physica B: Condensed Matter, 2019
Magnetic refrigeration based on magnetocaloric effect (MCE) has become a promising alternative technique to the traditional gas-compression refrigeration due to its friendly environment and high energy efficiency. In addition to room temperature magnetic
Hu Zhang, R. Gimaev, B. Kovalev, K. Kamilov, V. Zverev, A. Tishin   +5 more
semanticscholar   +1 more source

Comparative study on the series, parallel and cascade cycles of a multi-mode room temperature magnetic refrigeration system

, 2020
Magnetic refrigeration has been investigated as an appropriate alternative for vapor-compression refrigeration to reduce the greenhouse effect. However, the commercialization process of MR is obstructed by the inadequate cooling condition. In this paper,
Jing He, Jianghong Wu, Biwang Lu, Chaopeng Liu   +3 more
semanticscholar   +1 more source

Solid state magnetic refrigerator

Applied Energy, 2012
Abstract The viability and operation of a fully solid state magnetic refrigeration system with envisaged applications on chip, sensor and device cooling is here tested using numerical simulations. The proposed system relies on the combined use of materials displaying the magnetocaloric effect and of materials whose thermal conductivities are ...
D.J. Silva, B.D. Bordalo, A.M. Pereira, J. Ventura, J.P. Araújo   +4 more
openaire   +1 more source

Investigating refrigerator magnets

The Physics Teacher, 2000
Two articles recently carried in The Physics Teacher have included discussions of “refrigerator magnets.” These articles have been informative, and I would like to add the simple analogy of a horseshoe magnet to the discussion. After all, a horseshoe magnet is a “one-sided” magnet in that it has the effective part of its field only on the end where the
openaire   +1 more source