article·1969-01-01

Ferritas con ciclo de histeresis rectangular

Demetrio Alvarez Estrada, Carlos Moure Jiménez

Abstract

espanolSe revisa la literatura sobre ferritas de histeresis rectagular, en relacion con la composicion quimica de dichas ferritas. Despues de definir algunos parametros, como rectangularidad, campo coercitivo y tiempo de conmutacion, se indican cuales son las teorias propuestas para explicar el fenomeno de rectangularidad. Finalmente se pasa revista a los diferentes sistemas en cuyo seno se ha hallado rectangularidad, haciendo hincapie en los dos que actualmente tienen importancia industrial: ferrita de magnesio-manganeso y ferrita de litio-niquel. EnglishThe literature on rectangular hysteresis ferrites is reviewed in relation to the ir chemical composition. After defining some parameters, such as rectangularity, coercive field and commutation time, the theories proposed for explaining the phenomena of rectangularity are indicated. Finally, a description is made of those systeme showing rectangularity stressing the two which at present have industrial importance: Magnesium-manganese ferrite and lithium-nickel ferrite.
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