Mn含量对FeNiMn合金热磁特性的影响  

Effects of Mn Content on the Thermal Magnetic Properties of FeNiMn Alloys

作　　者：龙仲驰[1] 张万里[1] 彭斌[1] 蒋洪川[1] 

机构地区：[1]电子科技大学电子薄膜与集成器件国家重点实验室,四川成都610054

出　　处：《磁性材料及器件》2007年第1期23-25,共3页Journal of Magnetic Materials and Devices

摘　　要：采用真空熔炼方法制备了（Fe64Ni36）1-xMnx（x=1，2，3，4，5％）热磁合金，系统研究了Mn含量对合金热磁性能的影响。结果表明，Mn含量对合金的相结构影响很小，但显著影响合金的工作磁感应强度（Bm）、居里温度（TC）和磁感应强度的温度变化率（dBm/dT）。随Mn含量增加，Bm和TC均单调下降；dBm/dT先增大后减小，在Mn含量为2％时达到最大值。Mn含量为3％的样品在20～160℃内Bm-T曲线线性度最佳，适合在该温度范围内用于磁温度补偿。（Fe64Ni36） 1-xMnx （x=1, 2, 3, 4, 5%） thermal magnetic alloys were prepared using vacuum melting method. Effects of Mn content on the thermal magnetic properties of alloys were systematically investigated.The results show that Mn content has no effect on the phase structure of the alloys, but the working magnetic flux density （Bin）, Curie temperature （Tc） and the change rate of working magnetic flux density versus temperature （dBm/dT） are influenced significantly by Mn content of the alloys. Bm and Tc monotOnously decrefise with the increase of Mn content. The value of dBm/dT increases to a maximum when Mn content is 2%, before decreases with further increase of Mn content. The sample with 3% Mn content has the best linearity of the Bm-T curve in the temperature range of 20 to 160 ℃, which is suitable for applying tO magnetic temperature compensation in this temperature range.

关 键 词：磁温度补偿合金 热磁特性 成分 

分 类 号：TM274[一般工业技术—材料科学与工程]