Metal treatment – Process of modifying or maintaining internal physical... – Magnetic materials
Patent
1978-09-26
1980-02-05
Rutledge, L. Dewayne
Metal treatment
Process of modifying or maintaining internal physical...
Magnetic materials
148101, 148 3155, H01F 100
Patent
active
041871286
ABSTRACT:
The disclosed magnetic devices, including a magnetically coupled conducting path, incorporate amorphous, low magnetostriction alloys of the general formula (Co.sub.a Fe.sub.b T.sub.c).sub.i X.sub.j, the "metallic" constituents thereof being within the parenthetical expression. T, in the formulation, is selected from among Ni, Cr, Mn, V, Ti, Mo, W, Nb, Zr, Pd, Pt, Cu, Ag and Au, X being at least one "glass former" selected from among P, Si, B, C, As, Ge, Al, Ga, In, Sb, Bi and Sn. The "metallic" constituents comprise from 70-90 atomic percent of the alloy with cobalt being present in an amount of at least 70 atomic percent of the "metallic" constituents. The described material has been prepared by rapid cooling from the liquid, directly to the shape needed for fabrication of the device (e.g., tape to be wound to form an inductor core). When the amorphous material is heat treated for from 30 minutes to two hours at temperatures from 125 degrees Centigrade to 200 degrees Centigrade, it exhibits a temperature stabilized magnetic permeability. The fabrication of such devices as temperature stabilized inductors and transformers is contemplated.
REFERENCES:
patent: 3732349 (1973-05-01), Chen et al.
patent: 3838365 (1974-09-01), Dutoit
patent: 4053333 (1977-10-01), Egami et al.
patent: 4056411 (1977-11-01), Chen et al.
The Review of Scientific Instruments, 41, No. 8, Aug. 1970, p. 1237.
Amorphous Magnetism 1973, Plenum Press, New York, pp. 313-320.
Materials Research Bulletin, 11 (1976), pp. 49-54, Permagon Press Inc. Chen et al. Bell Lab. Murray Hill, N. J.
Journal of NonCrystalline Solids 15 (1974), pp. 165-173 and 15 (1974), pp. 174-178.
Billings Robert L.
Chen Ho-Sou
Gyorgy Ernst M.
Sherwood Richard C.
Bell Telephone Laboratories Incorporated
Businger Peter A.
Friedman Allen N.
Rutledge L. Dewayne
Sheehan John P.
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