Journal
SCIENCE CHINA-TECHNOLOGICAL SCIENCES
Volume 53, Issue 5, Pages 1290-1293Publisher
SCIENCE PRESS
DOI: 10.1007/s11431-010-0055-y
Keywords
Fe-based amorphous powder; water atomization; amorphous powder core; ultra-low core loss
Funding
- National Hi-Tech Research and Development Program [2001AA327030]
- Science and Technology Program of Beijing [D0405003040121]
Ask authors/readers for more resources
Amorphous magnetic alloy powders were prepared from bulk metallic glasses Fe(74)Cr(2)Mo(2)Sn(2)P(10)Si(4)B(4)C(2) with supercooled liquid region of 32 K by water atomization. Amorphous magnetic powder core precursor was produced from a mixture of the amorphous alloy powder with addition of insulation and bonding materials by mold compacting at room temperature. After annealing the core precursor, the amorphous magnetic core exhibits superior magnetic properties as compared with molypermalloy powder core. The initial permeability up to 1 MHz was about 80, the flux density at 300 Oe was 1.06 T and the core loss at 100 kHz for B(m)=0.1 T was only 329 kW/m(3). The ultra-low core loss is attributed to the combination of relatively high resistivity and the amorphous structure of the Fe-based amorphous powder. Besides the outstanding magnetic properties, the Fe-based amorphous magnetic powder core had a much lower cost which renders the powder cores a potential candidate for a variety of industrial applications.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available