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- W2986175052 abstract "The influences of carbon on phase formation, Curie temperature, and magnetic entropy change of the NaZn13-type LaFe11.7Si1.3 were investigated. Seven carbon-containing alloys, LaFe11.7Si1.3Cx with x = 0, 0.03, 0.06, 0.10, 0.20, 0.30, and 0.50, respectively, were prepared for this investigation. Experimental results show that addition of a small amount of carbon in LaFe11.7Si1.3 is favorable for the formation of the NaZn13-type structure of LaFe11.7Si1.3Cx. The lattice constant increases with C addition and x increases in the alloy because of the introduction of C as interstitial atoms. The Cu- rie temperature of LaFe11.7Si1.3Cx increases from 194 K to 225 K as x increases from 0 to 0.5. Large magnetic entropy changes were observed in these carbon-containing alloys LaFe11.7Si1.3Cx because of their first-order structural/magnetic transition. The maximum magnetic entropy change of 27.5 J?kg?1?K?1 at 202 K for the 0-1.56 T magnetic field change was observed in the alloy with x = 0.06. The large magnetic-entropy changes corresponding to low magnetic field change, and the low cost of the material of LaFe11.7Si1.3Cx makes it a promising candidate to be used as magnetic refrigerants in the cor- responding temperature range." @default.
- W2986175052 created "2019-11-22" @default.
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- W2986175052 date "2006-01-01" @default.
- W2986175052 modified "2023-09-23" @default.
- W2986175052 title "Influence of carbon on the giant magnetocaloric effect of LaFe_11.7Si_1.3" @default.
- W2986175052 hasPublicationYear "2006" @default.
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