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Metallic glasses having a combination of high permeability, low coercivity, low ac core loss, low exciting power and high thermal stability
Metallic glasses having a combination of high permeability, low coercivity, low ac core loss, low exciting power and high thermal stability
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机译:具有高磁导率,低矫顽力,低交流磁芯损耗,低激励功率和高热稳定性的金属玻璃
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摘要
Metallic glasses having high permeability, low coercivity, low ac core loss, low exciting power, and high thermal stability are disclosed. The metallic glasses are substantially completely glassy and consist essentially of about 58 to 81 atom percent iron, from 1 to about 10 atom percent of at least one member selected from the group consisting of nickel and cobalt, about 1 to 6 atom percent of at least one member selected from the group consisting of chromium, molybdenum, vanadium, niobium, and zirconium, about 11 to 27.5 atom percent boron about 0.5 to 8 atom percent silicon, 0 to about 2 atom percent carbon, plus incidental impurities, the total of born, silicon and carbon present ranging from about 17 to 28 atom percent. The alloy is heat treated at a temperature and for a time sufficient to achieve stress relief without inducing precipitation of discrete particles therein. Such a metallic glass alloy is especially suited for use in devices requiring high response to weak magnetic fields, such as ground fault interrupters and current/potential transformers.
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