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EXPERIMENTAL EVALUATION OF A SINGLE LAYER MnFeP_(1-x)Si_x AMR

机译:单层MnFeP_(1-x)Si_x AMR的实验评估

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摘要

First order magnetocaloric materials (FOM) have desirable characteristic such as a high magnetocaloricrneffect, large heat capacity and use inexpensive constituents. However, irreversibilities associated withrnthermal and magnetic hysteresis, the strong dependency of the specific heat with temperature and magneticrnfield, and the narrow temperature range of useful magnetocaloric effect require further investigation.rnAmong the the MnFeP1-xSix system is one of the promising materials for magnetic heat pumpsrnapplications near room temperature. The present paper describes the experimental investigation of arnsingle-layer MnFeP1-xSix active magnetic regenerator (AMR), under different test conditions andrnfollowing a protocol of heating and cooling processes. The results for the FOM are compared with a GdrnAMR, that is experimentally tested following the same protocol, with the objective to study thernirreversibilities associated with FOM.
机译:一阶磁热材料(FOM)具有理想的特性,例如高磁热效应,大热容量以及使用廉价的成分。然而,与热和磁滞相关的不可逆性,比热与温度和磁场的强相关性以及有用的磁热效应的狭窄温度范围需要进一步研究。MnFeP1-xSix系统是磁热的有前途的材料之一室温附近的泵应用本文描述了单层MnFeP1-xSix有源磁蓄热器(AMR)在不同的测试条件下并遵循加热和冷却过程的协议的实验研究。将FOM的结果与GdrnAMR进行比较,该GdrnAMR按照相同的协议进行了实验测试,目的是研究与FOM相关的热可逆性。

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