New Soft Magnetic Material With Constant And Adjustable Permeability
New Soft Magnetic Material With Constant And Adjustable Permeability
复制标题
磁导率恒定可调的新型软磁材料
DOI：
10.1109/20.619572
复制
发表时间：
1997
期刊：
影响因子：
--
通讯作者：
H. Ogasawara
中科院分区：
文献类型：
--
作者：
H. Fukunaga;Y. Ichiki;M. Nakano;Y. Ohta;H. Kakehashi;H. Ogasawara
通过Fe-Cu-Nb-Si-B非晶态磁带的结晶，制备出磁导率达数百，磁损耗与Mn-Zn铁氧体相当的新型金属磁带。虽然退火带的磁性表现出明显的不稳定性，但在使用前将带暴露在大通量密度下可以使其稳定。通过控制稳定暴露的磁通密度，可以将稳定带的磁导率调节到理想的值。只要激发磁通密度不超过用于稳定的磁通密度，稳定磁导率在400 kHz时保持不变，与激发磁通密度无关。
New metallic magnetic ribbons with permeability of several hundreds and magnetic loss comparable to that of Mn-Zn ferrites were developed by crystallizing amorphous Fe-Cu-Nb-Si-B ribbons. Although the magnetic properties of as-annealed ribbons showed remarkable instability, they were stabilized by exposing the ribbon to large flux density before usage. The permeability of the stabilized ribbons could be adjusted to the desired value by controlling the flux density exposed for stabilization. The stabilized permeability was constant up to 400 kHz independent of the excited flux density, as long as the excited flux density did not exceed the flux density used for stabilization.