Magnetic alloys
AssigneeThe United States of America as represented by the Secretary of the Army
InventorsFrederick Rothwarf, Robert L. Bergner, Herbert A. Leupold, Arthur Tauber
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Abstract
Magnetic alloys of the general formula Sm.sub.2 Cu.sub.1.6 Zr.sub.0.16 Fe.sub.3.3 Co.sub.12-x M.sub.x are provided wherein M is Mn or Cr and wherein x is a value greater than zero and less than 2.1.
Claims3
A high coercivity, high energy product permanent magnet alloy corresponding to the formula Sm.sub.2 Cu.sub.1.6 Zr.sub.0.16 Fe.sub.3.3 Co.sub.10 Mn.sub.2 and having a saturation magnetization of 9.69 kG, an antisotropy field of 115 kOe, and a temperature coefficient of magnetization of -0.02%/C.
A high coercivity, high energy product permanent magnet alloy corresponding to the formula Sm.sub.2 Cu.sub.1.6 Zr.sub.0.16 Fe.sub.3.3 Co.sub.11.5 Cr.sub.0.5 and having a saturation magnetization of 9.9 kG, an anisotropy field of 115 kOe, and a temperature coefficient of magnetization of -0.033%/C.
A high coercivity, high energy product permanent magnet alloy corresponding to the formula Sm.sub.2 Cu.sub.1.6 Zr.sub.0.16 Fe.sub.3.3 Co.sub.11 Cr and having a saturation magnetization of 8.57 kG, an anisotropy field of 110 kOe, and a temperature coefficient of magnetization of -0.022%/C.
Dependencies are inferred from the claim text.