IRON POWDER FOR PRESSED POWDER MAGNETIC BODY, PRESSED POWDER MAGNETIC BODY, METHOD OF MANUFACTURING IRON POWDER FOR PRESSED POWDER MAGNETIC BODY, AND METHOD OF MANUFACTURING PRESSED POWDER MAGNETIC BODY

摘要

PROBLEM TO BE SOLVED: To provide magnetic powder and a pressed powder magnetic body that can improve pressed powder formability, improve thermal recoverability of strain of a compacted body, and improve magnetic characteristics.SOLUTION: There is provided iron powder for pressed powder magnetic body that includes metal elements principally comprising iron and is manufactured by a water atomizing method, the ion powder including 99.7 mass% or more iron, 0.002 mass% or less carbon, 0.001 mass% or less nitrogen, and 0.01-0.04 mass% oxygen in the form of oxide particles. The oxide particles include particles principally comprising metal ions and oxygen. The oxide particles having an average particle size of 2 nm or larger has a number density of 0.1×10/cmto 4×10/cmas an average surface density in a section of the iron powder.