| abstract |
(57) [Summary]n5 to 20 moles of cobalt, 1 to 5 moles of aluminum, 3 to 10 moles of silicon, 0.7 to 3.5 moles of phosphorus and oxygen based on 100 moles of iron and cobalt, and iron , Cobalt, aluminum, silicon, phosphorus and oxygen in a total weight of 95 to 100% by weight based on the total weight of the powder, iron- and cobalt-containing, acicular ferromagnetic powder. This ferromagnetic powder can be used to produce a magnetic recording material. |