Patent ID: 8999233
Filing Date: 2015-04-07
Classification: C22C,C22F,H01F

Abstract:
1. An intermetallic composition comprising a ternary transition metal modified manganese aluminum alloy comprising a bulk nanostructured alloy with at least about 80% of a magnetic τ phase and having permanent magnetic properties, the bulk alloy having a macroscopic composition of Mn T is a ternary transition metal selected from a group consisting of iron, cobalt and nickel, X ranges from 50 atomic % to 60 atomic %, X +Y +Z =100 atomic %, and Z is an amount less than 10 atomic % sufficient to impart a saturation magnetization of at least 96 emu/g and the τ phase comprises Mn, Al and a ternary transition metal selected from the group consisting of iron, cobalt and nickel.