Flat soft magnetic powder and production method therefor
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United States of America
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Mar 3, 2020
Grant Date -
Feb 15, 2018
app pub date -
Mar 8, 2016
filing date -
Mar 8, 2016
priority date (Note) -
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Abstract
Provided is a flaky soft magnetic powder including an Fe—Si—Al alloy having an oxygen content of 0.6 mass % or less, a manganese content of 0.1 mass % to 1.0 mass %, and the balance incidental impurities. The flaky soft magnetic powder has an average particle size of 43 to 60 μm and exhibits a coercive force Hc of 106 A/m or less as measured under application of a magnetic field in an in-plane direction of the flaky soft magnetic powder. The ratio of the tap density to the true density of the flaky soft magnetic powder is 0.17 or less. Also provided is a method of producing the flaky soft magnetic powder. The use of the flaky soft magnetic powder can produce a magnetic sheet having particularly high magnetic permeability.
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