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本文报道采用磁性蓄冷材料Er_3Ni取代低温制冷机常规蓄冷材料铝的试验情况,试验结果使二级索尔凡(Solvay)制冷机的最低制冷温度从11.5K降低到液氦温度4.2K以下。
This paper reports the replacement of conventional cold storage material aluminum with cold storage material Er_3Ni. The experimental results show that the minimum refrigeration temperature of the secondary Solvay refrigerator is reduced from 11.5K to 4.2K below the liquid helium temperature.