Bulk Transition Elements Based Materials for Magnetic Cooling Application
In this paper we investigate the performances of two bulk magnetocaloric refrigerants based on La(Fe,Co)13-xSix and prepared by powder metallurgy. Both materials were developed especially for a magnetic cooling machine. We have determined the magnetocaloric effect in term of temperature change under magnetic field using a test-bench with practical running conditions. ΔT was measured under 2 T and close to room temperature range. The obtained results will be compared with those of some reference materials reported in the literature. In addition, a composite material based on La(Fe,Co)13-xSix is proposed for magnetic systems using Ericsson and AMR cycles for refrigeration close to room temperature.
J.-L. Bobet, B. Chevalier and D. Fruchart
M. Balli et al., "Bulk Transition Elements Based Materials for Magnetic Cooling Application", Solid State Phenomena, Vol. 170, pp. 248-252, 2011