ANNEALING SEPARATOR COMPOSITION FOR GRAIN-ORIENTED ELECTRICAL STEEL SHEET, GRAIN-ORIENTED ELECTRICAL STEEL SHEET, AND METHOD FOR MANUFACTURING GRAIN-ORIENTED ELECTRICAL STEEL SHEET

摘要

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