PRACTICAL PROPERTIES OF LaFeCoSi MATERIALS TO BE USED IN MAGNETIC COOLING REGENERATORS

摘要

Magnetocaloric materials to be used in cooling applications require having some practical properties in additionrnto high magnetocaloric parameters. The use of a heat transfer fluid to transport the heat between the magnetocaloric materials andrnthe cold and hot sinks affects the performance of the cooling systems through the heat conductivity of solid and fluid and thernstability of the materials under the contact with the fluid. The effectiveness of several water corrosion inhibitors on the oxidationrnof La(Fe,Co,Si)_(13) magnetocaloric materials has been analyzed measuring the rate of corrosion of the materials. Also the thermalrnconductivity of these materials has been measured for different magnetic fields in their temperature range of interest.