Abstract
Gd5Si2Ge2-based alloys can exhibit a giant magnetocaloric effect (GMCE) which gives them the potential use in the cooling technologies[1].Through this studies, it can be found that the purity of Gd had a great impact on the magnetocaloric effect in Gd5Si2-xGe2-xZn2x alloys. When 3N Gd used and 2x=0.01, Gd5Si2-xGe2-xZn2x around the curie point of 280k get the maximum magnetic entropy change of 14.0 J/(Kg.K) under the external magnetic field change from 0 to 1T, but when 2N Gd used and 2x=0.05, Gd5Si2-xGe2-xZn2x around the curie point of 284.2k under the external magnetic field change 1T get the maximum magnetic entropy change 6.65 J/(Kg.K).
Publisher
Trans Tech Publications, Ltd.
Subject
Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science
Reference7 articles.
1. Xueling Huo, Xinghao Hu, Xuezhen Wang, Zhi Zeng: Journal of Shanghai University. Vol. 6(2010), pp.35-36.
2. Zai Feng, Wei Wu, Hui Zhao, Guangfu Yin: 2009, Materials Characterization. Vol. 60(2009), pp.312-315.
3. Tao Liu: Refregeration and Air Congditoning. Vol. 23(2009), pp.83-86.
4. V. K. Pecharsky, K. A. Gschneidner Jr: Journal of Magnetism and Magnetic Materials. Vol. 167(1997), pp.179-184.
5. A. O. Pecharsky, K. A. Gschneidner Jr, V. K. Pecharsky: Journal of Applied Physics. Vol. 93(2003), pp.4722-4728.