DIRECTIONAL ELECTROMAGNETIC STEEL SHEET WITH COATING, AND METHOD FOR PRODUCING SAME
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United States of America Patent
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Dec 25, 2014
app pub date -
Nov 12, 2012
filing date -
Dec 28, 2011
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A directional electromagnetic steel sheet with a coating includes a directional electromagnetic steel sheet; and a coating that is formed on the surface of the directional electromagnetic steel sheet and contains elements P, Si, Cr and O as well as at least one element that is selected from the group consisting of Mg, Al, Ni, Co, Mn, Zn, Fe, Ca and Ba, with 5% by mass or more thereof being composed of a crystalline phase of a phosphate salt.
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