變溫條件下鈔鈷永磁體損耗特性測(cè)量與仿真分析

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中圖分類(lèi)號(hào)：TP319 文獻(xiàn)標(biāo)志碼：A 文章編號(hào)：2095-2945（2025）20-0086-04

Abstract：Inordertoexplore theeffectof temperatureontheAClossof samariumcobaltpermanentmagnets，atest system wasestablishedtoverifytheAClossofsamariumcobaltpermanentmagnetsatdiferenttemperaturesandfrequencies.Thetest resultsshowthattherearediferencesintheAClossofsamarium-cobaltpermanentmagnetsunderdiferenttemperatureand frequency conditions. When the frequency exceeds 500Hz ，the AC loss of samarium-cobalt permanent magnet shows a linear increasetrendwiththeincreaseof temperature.Then，thefiniteelementmodelofpermanentmagnetwasconstructedbyusingthe simulationsoftwareAnsysMaxwelltoexploretheinfluenceoftemperaturechangeonremanenceandcoercivity.Thesimulation resultsshowthatwiththeincreaseof temperature，theremanenceof permanentmagnetdecreasesandthecoercivitydecreases.

Keywords：samariumcobalt permanentmagnet；losscharacteristic；finiteelementsimulation；variable temperaturecondition; coercive force

在尖端器件向高功率、高精密和小型化發(fā)展背景下，迫切需要開(kāi)發(fā)具有更高磁性能和服役能力的鈷永磁材料。（剩余4086字）