Magnetic properties of Fe3(1-x)Cr3xC alloys

Feng-Qi Zhao; O. Tegus; B. Fuquan; E. Brück

doi:10.1016/S1674-4799(09)60056-X

Volume 16 Issue 3

Jun. 2009

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Article Navigation > International Journal of Minerals, Metallurgy and Materials > 2009 > 16(3): 314-316

Feng-Qi Zhao, O. Tegus, B. Fuquan, and E. Brück, Magnetic properties of Fe_3(1-x)Cr_3xC alloys, Int. J. Miner. Metall. Mater., 16(2009), No. 3, pp. 314-316. https://doi.org/10.1016/S1674-4799(09)60056-X

Cite this article as:

Feng-Qi Zhao, O. Tegus, B. Fuquan, and E. Brück, Magnetic properties of Fe3(1-x)Cr3xC alloys, Int. J. Miner. Metall. Mater., 16(2009), No. 3, pp. 314-316. https://doi.org/10.1016/S1674-4799(09)60056-X

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Materials

Magnetic properties of Fe_3(1-x)Cr_3xC alloys

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Corresponding author:
Feng-Qi Zhao E-mail: fqzhao@imnu.edu.cn
Received: 17 May 2008

Abstract

Abstract

The magnetic properties of Fe_3(1-x)Cr_3xC alloys with x=0.05, 0.1, 0.15, and 0.2, which crystallize in the cementite Fe₃C-type structure with space group Pnma, were investigated by means of magnetization measurements. These alloys show temperature-induced second-order magnetic phase transitions. The Curie temperature (T_c) of these alloys decreases with increasing x. The isothermal magnetic-entropy changes of these alloys were derived from the magnetic isotherms measured with increasing temperature and increasing field. The maximum values of the magnetic-entropy change are about 0.9 and 3.6 J·kg^-1·K^-1 at T_c=360 K for x = 0.05 in a magnetic field change from 0 to 1 T and 0 to 5 T, respectively.
- magnetic properties;
- magnetocaloric effect;
- magnetic-entropy change;
- magnetic refrigeration