H - Electricity – 04 – R
Patent
H - Electricity
04
R
75/126, 148/4, 3
H04R 13/02 (2006.01) C22C 38/18 (2006.01)
Patent
CA 1103067
Abstract of the Disclosure The invention relates to hard magnetic materials, a process for shaping such materials and devices utilizing materials so shaped. Shaping is accomplished by steps including working, with at least some critical part of the working being conducted at low temperature, sometimes at room temperature. Magnetic properties are sufficient to permit use in many magnetically biased devices, such as electroacoustic transducers, including receivers, loud- speakers, and the like. Alloy compositions based on ternary alloys of the chromium-cobalt-iron system modified by addition of zirconium, molybdenum, niobium, vanadium, titanium, and/or aluminum, are found to manifest improved formability. Examplary compositions are magnetic and evidence coercivities of 350-550 Oe., remanent magnetiza- tions of from 10,000 - 7,500 gauss, and maximum energy products in excess of one million. Improvement in formabilty may take the form of room temperature stamping, sometimes in air, to final configurations including curvatures of radius equal to thickness. Novel compositions particularly desirable from such standpoint necessarily contain zirconium together with aluminum, niobium, and/or titanium.
288888
Chin Gilbert Y.
Plewes John T.
Wonsiewicz Bud C.
Kirby Eades Gale Baker
Western Electric Company Incorporated
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