The Magnetocaloric Composite Designed by Multi‐Gd‐Al‐Co Microwires with Close Performances
Abstract
A new magnetocaloric composite composed of three types of soft ferromagnetic Gd‐based microwires with equal mass ratio and close magnetocaloric performances is designed. The Curie temperatures ( T C ) of these three wires are ≈97, ≈100, and ≈101 K, respectively. However, the magnetization versus temperature curve of the composite sample shows almost a single ferromagnetic–paramagnetic transition at ≈97 K. For a field change of µ 0 Δ H = 5 T, the maximum entropy change () and refrigerant capacity (RC) of this composite are calculated to be ≈9.98 J kg −1 K −1 and ≈665 J kg −1 , respectively. There is a good agreement between the calculated −Δ S M ( T ) curve and the experimental data, indicating weak magnetic interactions among different wire compositions. Additionally, the calculated universal master curves of the composite and its Gd‐Al‐Co components are fitted very well, which reveals the second‐order type of the magnetic transition for the composite. The designed composite integrates all magnetocaloric properties of its components, suggesting that the Gd‐based amorphous wires with close magnetocaloric properties can be designed as an excellent refrigerant for use in active magnetic refrigerators.
- Authors:
-
- School of Materials Science and Engineering Harbin Institute of Technology Harbin 150001 P. R. China, Department of Physics University of South Florida Tampa, Florida 33620 USA
- School of Materials Science and Engineering Harbin Institute of Technology Harbin 150001 P. R. China
- School of Materials Science and Engineering Inner Mongolia University of Technology No. 49 Aimin Street Hohhot 010051 P. R. China
- Department of physics Qiqihar University Qiqihar 161006 P. R. China
- Department of Physics University of South Florida Tampa, Florida 33620 USA
- Publication Date:
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1512823
- Grant/Contract Number:
- DE‐FG02‐07ER 46438
- Resource Type:
- Publisher's Accepted Manuscript
- Journal Name:
- Physica Status Solidi. A, Applications and Materials Science
- Additional Journal Information:
- Journal Name: Physica Status Solidi. A, Applications and Materials Science Journal Volume: 216 Journal Issue: 16; Journal ID: ISSN 1862-6300
- Publisher:
- Wiley Blackwell (John Wiley & Sons)
- Country of Publication:
- Germany
- Language:
- English
Citation Formats
Shen, Hongxian, Luo, Lin, Xing, Dawei, Jiang, Sida, Liu, Jingshun, Huang, Yongjiang, Guo, Shu, Sun, Haichao, Liu, Yanfen, Sun, Jianfei, and Phan, Manh‐Huong. The Magnetocaloric Composite Designed by Multi‐Gd‐Al‐Co Microwires with Close Performances. Germany: N. p., 2019.
Web. doi:10.1002/pssa.201900090.
Shen, Hongxian, Luo, Lin, Xing, Dawei, Jiang, Sida, Liu, Jingshun, Huang, Yongjiang, Guo, Shu, Sun, Haichao, Liu, Yanfen, Sun, Jianfei, & Phan, Manh‐Huong. The Magnetocaloric Composite Designed by Multi‐Gd‐Al‐Co Microwires with Close Performances. Germany. https://doi.org/10.1002/pssa.201900090
Shen, Hongxian, Luo, Lin, Xing, Dawei, Jiang, Sida, Liu, Jingshun, Huang, Yongjiang, Guo, Shu, Sun, Haichao, Liu, Yanfen, Sun, Jianfei, and Phan, Manh‐Huong. Wed .
"The Magnetocaloric Composite Designed by Multi‐Gd‐Al‐Co Microwires with Close Performances". Germany. https://doi.org/10.1002/pssa.201900090.
@article{osti_1512823,
title = {The Magnetocaloric Composite Designed by Multi‐Gd‐Al‐Co Microwires with Close Performances},
author = {Shen, Hongxian and Luo, Lin and Xing, Dawei and Jiang, Sida and Liu, Jingshun and Huang, Yongjiang and Guo, Shu and Sun, Haichao and Liu, Yanfen and Sun, Jianfei and Phan, Manh‐Huong},
abstractNote = {A new magnetocaloric composite composed of three types of soft ferromagnetic Gd‐based microwires with equal mass ratio and close magnetocaloric performances is designed. The Curie temperatures ( T C ) of these three wires are ≈97, ≈100, and ≈101 K, respectively. However, the magnetization versus temperature curve of the composite sample shows almost a single ferromagnetic–paramagnetic transition at ≈97 K. For a field change of µ 0 Δ H = 5 T, the maximum entropy change () and refrigerant capacity (RC) of this composite are calculated to be ≈9.98 J kg −1 K −1 and ≈665 J kg −1 , respectively. There is a good agreement between the calculated −Δ S M ( T ) curve and the experimental data, indicating weak magnetic interactions among different wire compositions. Additionally, the calculated universal master curves of the composite and its Gd‐Al‐Co components are fitted very well, which reveals the second‐order type of the magnetic transition for the composite. The designed composite integrates all magnetocaloric properties of its components, suggesting that the Gd‐based amorphous wires with close magnetocaloric properties can be designed as an excellent refrigerant for use in active magnetic refrigerators.},
doi = {10.1002/pssa.201900090},
journal = {Physica Status Solidi. A, Applications and Materials Science},
number = 16,
volume = 216,
place = {Germany},
year = {Wed May 15 00:00:00 EDT 2019},
month = {Wed May 15 00:00:00 EDT 2019}
}
https://doi.org/10.1002/pssa.201900090
Web of Science
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