Magnetic field effects on the corrosion behavior of magnetocaloric alloys LaFe13.9Si1.4 under paramagnetic states

Unlocking the Potential of Magnetic Refrigeration: Investigating the Compatibility of the Ga-Based Liquid Metal with a La(Fe,Mn,Si)13Hz Magnetocaloric Material for Enhanced Long-Term Stability

“…46 A magnetic field was also found to influence the chemical stability of La(Fe, Si) 13 alloys immersed in deionized water�the direction of the magnetic field played a critical role in the corrosion rate. 47 For example, the sample immersed in deionized water for 3 days with exposure to 1 T parallel and 1 T perpendicular magnetic fields experienced a 56 and 22% reduction in its corrosion rate when compared to the case with zero magnetic field. 47 Most previous studies that involved liquid metals have been numerical and assumed no chemical reaction between the liquid metal and the magnetocaloric material, 6 but recent experimental work has shown that this may not be the case.…”

“…47 For example, the sample immersed in deionized water for 3 days with exposure to 1 T parallel and 1 T perpendicular magnetic fields experienced a 56 and 22% reduction in its corrosion rate when compared to the case with zero magnetic field. 47 Most previous studies that involved liquid metals have been numerical and assumed no chemical reaction between the liquid metal and the magnetocaloric material, 6 but recent experimental work has shown that this may not be the case. The mixture of liquid metal and a magnetocaloric material is critical for the performance of magnetic refrigerators, and any changes in their properties over time could significantly impact the efficiency and effectiveness of the technology.…”

“…It was found that the presence of a corrosion inhibitor is crucial to maintain the chemical stability of the magnetocaloric materials . A magnetic field was also found to influence the chemical stability of La­(Fe, Si) 13 alloys immersed in deionized waterthe direction of the magnetic field played a critical role in the corrosion rate . For example, the sample immersed in deionized water for 3 days with exposure to 1 T parallel and 1 T perpendicular magnetic fields experienced a 56 and 22% reduction in its corrosion rate when compared to the case with zero magnetic field …”

“… 47 For example, the sample immersed in deionized water for 3 days with exposure to 1 T parallel and 1 T perpendicular magnetic fields experienced a 56 and 22% reduction in its corrosion rate when compared to the case with zero magnetic field. 47 …”