POSCO Holdings Inc.
ANNEALING SEPARATOR COMPOSITION FOR GRAIN-ORIENTED ELECTRICAL STEEL SHEET, GRAIN-ORIENTED ELECTRIAL STEEL SHEET, AND METHOD FOR MANUFACTURING GRAIN-ORIENTED ELECTRICAL STEEL SHEET

Abstract:

An annealing separator composition for a grain-oriented electrical steel sheet according to an embodiment of the present invention includes: 100 parts by weight of at least one of a magnesium oxide and a magnesium hydroxide; and 30 to 250 parts by weight of a metal hydroxide including at least one of a nickel hydroxide and a cobalt hydroxide, wherein an average particle diameter of the metal hydroxide is 0.01 to 80 .mu.m.