1. China Iron and Steel Research Institute Group, Beijing 100081, China 2. R&D Center of Advanced Technology and Materials Co. , Ltd. , Beijing 100081, China
Magnetic Properties of Nanocrystalline Powder Cores Using Mechanically Crushed Powders
1. China Iron and Steel Research Institute Group, Beijing 100081, China 2. R&D Center of Advanced Technology and Materials Co. , Ltd. , Beijing 100081, China
ժҪ Toroidal shape FeCuNbSiB nanocrystalline alloy powder cores were prepared by cold pressing using mechanically crushed and ball-milled powders, respectively. The morphologies and their effects on the magnetic properties of the compacted cores were investigated. Compared with ball-milled powders, mechanically crushed ones have more regular shapes and rounder edges, which lead to better inter-particle insulation. FeCuNbSiB nanocrystalline alloy powder cores fabricated from mechanically crushed powders exhibit remarkably lower core loss of about 248. 2 kW/m3 at 100 kHz for maximum flux density Bm=0. 1 T, and more stable permeability up to 10 MHz. Moreover, the dc-bias property could be improved significantly using mechanically crushed powders.
Abstract��Toroidal shape FeCuNbSiB nanocrystalline alloy powder cores were prepared by cold pressing using mechanically crushed and ball-milled powders, respectively. The morphologies and their effects on the magnetic properties of the compacted cores were investigated. Compared with ball-milled powders, mechanically crushed ones have more regular shapes and rounder edges, which lead to better inter-particle insulation. FeCuNbSiB nanocrystalline alloy powder cores fabricated from mechanically crushed powders exhibit remarkably lower core loss of about 248. 2 kW/m3 at 100 kHz for maximum flux density Bm=0. 1 T, and more stable permeability up to 10 MHz. Moreover, the dc-bias property could be improved significantly using mechanically crushed powders.
Chun-bo HUANG,,Tian-cheng LIU,,Xiang-yue WANG,,Cao-wei LU,,De-ren LI,,Zhi-chao LU,. Magnetic Properties of Nanocrystalline Powder Cores Using Mechanically Crushed Powders[J]. �й������ڿ���, 2014, 21(3): 348-351.
Chun-bo HUANG,,Tian-cheng LIU,,Xiang-yue WANG,,Cao-wei LU,,De-ren LI,,Zhi-chao LU,. Magnetic Properties of Nanocrystalline Powder Cores Using Mechanically Crushed Powders. Chinese Journal of Iron and Steel, 2014, 21(3): 348-351.
2014, Vol. 21 
