汪天龙,邱清泉,靖立伟,M. R. Ci,丁大伟.铁磁材料低温磁性能测量研究[J].稀有金属材料与工程,2019,47(3):898~904.[Tianlong Wang,Qingquan Qiu,Liwei Jing,M.C.Ri,Dawei Ding.Measurement of magnetic properties of ferromagnetic materials at low temperature[J].Rare Metal Materials and Engineering,2019,47(3):898~904.]
铁磁材料低温磁性能测量研究
投稿时间:2017-08-25  修订日期:2018-02-27
中文关键词:  软磁材料  磁化曲线  损耗曲线  磁控溅射阴极
基金项目:国家自然科学基金资助(项目号51277172),创新研究群体科学基金(项目号51721005)
中文摘要:
      本文采用模拟冲击法研究了铁磁材料在300K和77K环境下的磁性能。以电工领域常用的铁磁材料DT4、1J22、2Cr13和非晶FeSiB为研究对象,研究结果表明,在液氮环境下,DT4、1J22、2Cr13和非晶FeSiB的饱和磁感应强度均略有增加,其中非晶FeSiB的饱和磁感应强度增幅最大为5.3%;DT4、非晶FeSiB和2Cr13的矫顽力增幅较大,DT4的矫顽力增幅为106%,而1J22的矫顽力减小了1.7%;频率为50Hz时,在液氮环境下DT4的损耗相比常温急剧增加,增幅达263.2%,非晶FeSiB和2Cr13的损耗相比常温略有增加,而1J22的损耗相比常温变化不大。最后,以超导线圈激磁的强磁场磁控溅射阴极的磁场计算为例,在铁芯结构相同的情况下,采用1J22作铁芯的磁控阴极靶面磁场水平分量的最大值为2343.8Gs,相比2Cr13作铁芯磁场水平分量最大值增加了14.8%。本文有关铁磁材料的低温磁性能研究可以为超导电磁装置的铁芯磁路设计提供依据。
Measurement of magnetic properties of ferromagnetic materials at low temperature
英文关键词:Soft magnetic material  Magnetization curve  Resistive loss curve  Magnetron sputtering cathode
英文摘要:
      The magnetic properties and loss characteristics of ferromagnetic materials in 300K and 77K environments were investigated by means of simulated impact method. In ferromagnetic materials DT4, 1J22, 2Cr13 and amorphous FeSiB alloy as the research sample, the results of the study show that in nitrogen environment, saturation magnetic induction intension of DT4, 1J22, 2Cr13 and amorphous FeSiB were slightly increased, the saturation magnetic induction intension of FeSiB increases to a maximum of 5.3%; The coercive force of DT4, amorphous FeSiB and 2Cr13 increases greatly, and the coercive force of DT4 increases by 106%, while the 1J22 decreases by 1.7%; When the frequency is 50Hz, the loss of DT4 in liquid nitrogen environment increases sharply compared with that at normal temperature. The loss of amorphous FeSiB and 2Cr13 increases slightly compared with the normal temperature, while the loss of 1J22 varies little. Finally, the magnetic field calculation of the magnetron sputtering cathode with superconducting coil excitation is taken as an example. Under the same structure of iron core, the maximum value of the horizontal component of magnetic field is 2284Gs with 1J22 as the core of the magnetron sputtering cathode. Compared with 2Cr13 as the iron core, the maximum value of the horizontal component of magnetic field increases by 9.2%. The study of low temperature magnetic properties of ferromagnetic materials can provide reference for the design of magnetic circuit of superconducting electromagnetic equipment.
作者单位E-mail
汪天龙 中国科学院应用超导重点实验室 wangtianlong@mail.iee.ac.cn 
邱清泉 中国科学院应用超导重点实验室 qiuqingquan@mail.iee.ac.cn 
靖立伟 中国科学院应用超导重点实验室  
M. R. Ci 中国科学院大学  
丁大伟 中国科学院物理研究所  
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