Magnetic powder and bonded magnet
AssigneeSeiko Epson Corporation
InventorsAkira Arai, Hiroshi Kato
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AssigneeSeiko Epson Corporation
InventorsAkira Arai, Hiroshi Kato
Estimating the term…
Disclosed herein is a magnetic powder which can provide a bonded magnet having high mechanical strength and excellent magnetic properties. The magnetic powder has an alloy composition represented by the formula of Rx(Fe1-yCoy)100-x-zBz (where R is at least one rare-earth element, x is 10-15 at %, y is 0-0.30, and z is 4-10 at %), wherein the magnetic powder includes particles each of which is formed with a number of ridges or recesses on at least a part of the surface thereof. In this magnetic powder, it is preferable that when the mean particle size of the magnetic powder is defined by aμm, the average length of the ridges or recesses is equal to or greater than a/40 μm. Further, preferably, the ridges or recesses are arranged in roughly parallel with each other so as to have an average pitch of 0.5-100 μm.
A magnetic powder comprising:
A magnetic powder comprising:
Dependencies are inferred from the claim text.