Porous manganese-based magnetocaloric material for magnetic refrigeration at room temperature

The powder metallurgy technique has been exploited as a means to prepare porous magnetocaloric materials. The alloy Mn1.1Fe0.9P0.46As0.54 was previously synthesized by mechanical alloying followed by a solid-state reaction for crystallization and homogenization. Subsequently, the alloy was comminuted and sintered at 1298 K. The obtained sintered product is aimed to be tested in a magnetic regenerator of a prototype machine.