Magnetic entropy change and magnetic properties of LaFe_(11.5)Si_(1.5) after controlling the Curie temperature by partial substitution of Mn and hydrogenation |
| |
| Institution: | 1. School of Materials Science and Engineering, Tianjin University of Technology, Tianjin 300384, China;
2. College of Science, Tianjin University of Technology, Tianjin 300384, China |
| |
| Abstract: | Magnetic properties and magnetic entropy changes of La(Fe1-xMnx)11.5Si1.5Hy compounds are investigated. Their Curie temperatures are adjusted to room temperature by partial Mn substitution for Fe and hydrogen absorption in 1-atm (1 atm=1.01325×105 Pa) hydrogen gas. Under a field change from 0 T to 2 T, the maximum magnetic entropy change for La(Fe0.99Mn0.01)11.5Si1.5H1.61 is -11.5 J/kg. The suitable Curie temperature and large value of Δ Sm make it an attractive potential candidate for the room temperature magnetic refrigeration application. |
| |
| Keywords: | magnetic refrigeration Curie temperature (TC) hydrogen absorption magnetocaloric effect (MCE) |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《中国物理 B》浏览原始摘要信息 |
| 点击此处可从《中国物理 B》下载免费的PDF全文 |
|
