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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 71 to 79 atom percent iron, about 1 to 6 atom percent of at least one member selected from the group consisting of chromium, molybdenum, tungsten, vanadium, niobium, tantalum, titanium, zirconium and hafnium, about 12 to 24 atom percent boron, about 1 to 8 atom percent silicon, 0 to about 2 atom percent carbon, plus incidental impurities, the total of boron, silicon and carbon present ranging from about 18 to 28 atom percent. The alloy is heated 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 interruptors and current/potential transformers.
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