DocumentCode :
976642
Title :
A comparison of the power loss and domain structure of wide and narrow amorphous ribbons
Author :
Blundell, M.G. ; Overshott, K.J.
Author_Institution :
University College, Cardiff, UK
Volume :
16
Issue :
5
fYear :
1980
fDate :
9/1/1980 12:00:00 AM
Firstpage :
1224
Lastpage :
1226
Abstract :
The power loss of Metglas 2826 (Fe40Ni40P14B6) amorphous ribbons with two widths, namely 2 mm and 1.3 cm, has been measured over the range of frequency 20 to 1000 Hz at sinusoidal flux densities up to 0.75 T. Measurements have been made on both polished and unpolished samples since surface polishing was necessary to enable the observation of the domain Structures. The static unmagnetized domain structure has been observed to possess a high domain wall spacing. The power losses for the two sample widths are compared and it is seen that large differences occur, primarily in the excess eddy current component of the losses. It is also seen that the polishing procedure affects the losses markedly but the effect is inconsistent for each width, i.e. the polishing causes an increase in the loss of the 1.3 cm wide ribbon but reduces the loss of the narrow sample. It is shown that the effect of polishing is similar to the effect produced by a large tensile stress of the order of 25 MPa applied along the ribbon length for both widths of material.
Keywords :
Amorphous magnetic materials/devices; Magnetic domains; Magnetic losses; Amorphous magnetic materials; Amorphous materials; Density measurement; Frequency; Loss measurement; Magnetic domains; Magnetic field measurement; Magnetic flux; Magnetic materials; Power measurement;
fLanguage :
English
Journal_Title :
Magnetics, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9464
Type :
jour
DOI :
10.1109/TMAG.1980.1060774
Filename :
1060774
Link To Document :
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