非晶合金的磁热效应及磁蓄冷性能

非晶合金的功能物性开发是突破非晶合金应用瓶颈的关键点之一.磁相变是非晶合金的一个重要特征.利用非晶合金的磁相变所带来的独特效应,可以将其应用于制冷领域.一方面非晶合金的磁热效应可以作为磁制冷材料应用于磁制冷机,另一方面非晶合金的比热突变可以作为磁蓄冷材料应用于低温制冷机.本文就非晶合金的磁热效应和磁蓄冷性能的原理、特征及其应用前景进行了详细介绍.

Magnetocaloric effects and magnetic regenerator performances in metallic glasses

Metallic glasses with functional properties, such as magnetic properties, are promising materials for potential applications and have aroused great interest. Magnetic phase transition is an important feature of metallic glass. The unique effect of the magnetic phase transition can be applied to the field of refrigeration. On the one hand, due to its magnetocaloric effect, the amorphous alloy can be used as a magnetic refrigeration material for magnetic refrigerator. On the other hand, because of its specific heat anomaly the amorphous alloy can be used as a magnetic regenerator material for cryogenic refrigerator. In recent years, the magnetocaloric effects and magnetic regenerator performances of metallic glasses have become hot topics in the field, and opened up possibilities for the functional applications of metallic glasses. In this paper, the principle of magnetocaloric effect and magnetic regenerator performance of metallic glass and its characteristics and application prospect are introduced in detail.