The study on the microstructure and the magnetocaloric effects in LaFe10.8 Co0.7 Si1.5 C0.2 compound at different annealing times

Bo Bao; Yi Long; Bin Fu; Chaolun Wang; Rongchang Ye; Yongqin Chang; Jinliang Zhao; Jun Shen

doi:10.1063/1.3335603

The study on the microstructure and the magnetocaloric effects in LaFe10.8 Co0.7 Si1.5 C0.2 compound at different annealing times

Bo Bao^*, Yi Long, Bin Fu, Chaolun Wang, Rongchang Ye, Yongqin Chang, Jinliang Zhao, Jun Shen

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

14 Citations (Scopus)

Abstract

Microstructure and magnetocaloric effects in LaFe10.8 Co0.7 Si1.5 C0.2 compound produced by induction furnace were investigated. NaZn13 -type structure (1:13) formed in LaFe10.8 Co0.7 Si1.5 C0.2 compound after being annealed at 1373 K for only 6 h. As annealing time increases, the grains grow up irregularly. A nearly single 1:13 phase is obtained after being annealed for 2 days. Annealing time is significantly reduced compared with that in conventional bulk LaFe_13-xSi_x compounds. The short annealing time is of great advantage to application. The maximum magnetic entropy change of this compound is -4.9 J/K Kg under a magnetic field of 2 T and relative cooling power is 172.2 J/Kg.

Original language	English
Article number	09A905
Journal	Journal of Applied Physics
Volume	107
Issue number	9
DOIs	https://doi.org/10.1063/1.3335603
Publication status	Published - 1 May 2010
Externally published	Yes

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abstract = "Microstructure and magnetocaloric effects in LaFe10.8 Co0.7 Si1.5 C0.2 compound produced by induction furnace were investigated. NaZn13 -type structure (1:13) formed in LaFe10.8 Co0.7 Si1.5 C0.2 compound after being annealed at 1373 K for only 6 h. As annealing time increases, the grains grow up irregularly. A nearly single 1:13 phase is obtained after being annealed for 2 days. Annealing time is significantly reduced compared with that in conventional bulk LaFe13-xSix compounds. The short annealing time is of great advantage to application. The maximum magnetic entropy change of this compound is -4.9 J/K Kg under a magnetic field of 2 T and relative cooling power is 172.2 J/Kg.",

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T1 - The study on the microstructure and the magnetocaloric effects in LaFe10.8 Co0.7 Si1.5 C0.2 compound at different annealing times

AU - Bao, Bo

AU - Long, Yi

AU - Fu, Bin

AU - Wang, Chaolun

AU - Ye, Rongchang

AU - Chang, Yongqin

AU - Zhao, Jinliang

AU - Shen, Jun

PY - 2010/5/1

Y1 - 2010/5/1

N2 - Microstructure and magnetocaloric effects in LaFe10.8 Co0.7 Si1.5 C0.2 compound produced by induction furnace were investigated. NaZn13 -type structure (1:13) formed in LaFe10.8 Co0.7 Si1.5 C0.2 compound after being annealed at 1373 K for only 6 h. As annealing time increases, the grains grow up irregularly. A nearly single 1:13 phase is obtained after being annealed for 2 days. Annealing time is significantly reduced compared with that in conventional bulk LaFe13-xSix compounds. The short annealing time is of great advantage to application. The maximum magnetic entropy change of this compound is -4.9 J/K Kg under a magnetic field of 2 T and relative cooling power is 172.2 J/Kg.

AB - Microstructure and magnetocaloric effects in LaFe10.8 Co0.7 Si1.5 C0.2 compound produced by induction furnace were investigated. NaZn13 -type structure (1:13) formed in LaFe10.8 Co0.7 Si1.5 C0.2 compound after being annealed at 1373 K for only 6 h. As annealing time increases, the grains grow up irregularly. A nearly single 1:13 phase is obtained after being annealed for 2 days. Annealing time is significantly reduced compared with that in conventional bulk LaFe13-xSix compounds. The short annealing time is of great advantage to application. The maximum magnetic entropy change of this compound is -4.9 J/K Kg under a magnetic field of 2 T and relative cooling power is 172.2 J/Kg.

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The study on the microstructure and the magnetocaloric effects in LaFe10.8 Co0.7 Si1.5 C0.2 compound at different annealing times

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