Patent ID: 9719159
Date: 2017-08-01
CPC Classifications: B22F,C22C,H01F

Claim:
1. A mixed magnetic powders for making a magnetic core, comprising: a first magnetic powder; a second magnetic powder, wherein each of the first magnetic powder and the second magnetic powder is made of amorphous alloy, wherein the ratio of the D50 of the first magnetic powder to the D50 of the second magnetic powder is in the range of 5 to 12, wherein the first magnetic powder weighs 50 to 90 percent of the total weight of the first magnetic powder and the second magnetic powder; and the second magnetic powder weighs 10 to 50 percent of the total weight of the first magnetic powder and the second magnetic powder, wherein the nano-indentation hardness of each of the first magnetic powder and the second magnetic powder is not less than 7 Gpa.