摘要
研究了频率(f>10 kHz)和磁场强度对商业非晶合金1K101和纳米晶合金1K107成品带材铁芯的损耗Pc和幅值磁导率μa的影响。结果表明,两种带材铁芯损耗Pc均正比于磁感应强度B的平方(Pc∝B2)及正比于频率f的平方(Pc∝f2);两种带材铁芯的μa都随B增加到一定值然后下降;当频率f为200 kHz时,1K107合金带材在B为0.4 T时最大幅值磁导率μa=27273.3;1K101合金带材在B=0.7 T时具有最大幅值磁导率μa=6548.9;在相同f、B条件下1K107带材损耗明显小于1K101,即便是f相同、B更大的情况下前者损耗仍可能小于后者,例如P1K107(200 kHz,0.7T)为1302.08 W/kg,P1K101(200 k Hz,0.4T)为2180.36 W/kg,表明纳米晶合金带材的磁性能明显优于非晶合金带材,更适合用于制备高频电力电子变压器铁芯。
Effects of frequency （f 〉 10 kHz） and magnetic density amorphous alloy （ 1K101 ） and nanocrystalline alloy （ 1K107 ） were on core loss （ Pc ） and amplitude permeability （μa） of commercial comparatively investigated. It has found that the Pc follows a direct proportionality to B2 andfz dependence for the two ribbons. The amplitude permeability （/Z,） increases to a certain value and then declines with the increase of magnetic flux density（B）. For instance, when the frequency is 200 kHz and B is 0.4 T, the/za is 27273.3 for the 1K107 ribbon; when the frequency is 200 kHz and B is 0.7 T, theμa, is 6548.9 for the 1K101 ribbon. Under the same condition （f, B）, the core loss of 1K107 ribbon is smaller than that of 1K101 ribbon. Further more, while the magnetic flux density（B） of 1K107 ribbon is larger than that of 1K101 ribbon and the f is the same, the core loss of 1K107 ribbon is still smaller than that of 1K101 ribbon, the P1K107 （200 kHz, 0.7 T）is 1302.08 W/kg, and P1K101 （200 kHz, 0.4 T）is 2180.36 W/kg. It indicates that the magnetic property of the 1K107 ribbon is significant better than that of 1K101 ribbon, and the former is more suitable for the preparation of high-frequency power electronic transformer core.
出处
《金属热处理》
CAS
CSCD
北大核心
2015年第2期31-34,共4页
Heat Treatment of Metals
关键词
非晶
纳米晶
软磁性能
磁导率
铁损
高频
amorphous
nanocrystalline
soft magnetic property
permeability
core loss
high frequency
