{"id":84920,"date":"2000-09-06T00:00:00","date_gmt":"2000-09-06T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/manetoimpedancia-en-aleaciones-amorfas-de-cofesib-de-baja-magnetostriccion\/"},"modified":"2000-09-06T00:00:00","modified_gmt":"2000-09-06T00:00:00","slug":"manetoimpedancia-en-aleaciones-amorfas-de-cofesib-de-baja-magnetostriccion","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/fisica\/manetoimpedancia-en-aleaciones-amorfas-de-cofesib-de-baja-magnetostriccion\/","title":{"rendered":"Manetoimpedancia en aleaciones amorfas de cofesib de baja magnetostriccion"},"content":{"rendered":"<h2>Tesis doctoral de <strong> V\u00edctor Manuel De La Prida Pidal <\/strong><\/h2>\n<p>En esta tesis doctoral se realiza un estudio del fen\u00f3meno de magnetoimpedancia mi en algunas aleaciones con geometr\u00eda en forma de cinta, ricas en co de composici\u00f3n cofesi(mo)b, y nanocristalinas ricas en fe de composici\u00f3n fecunbsib cuya caracteristica com\u00fan es que poseen una constante de magnetostricci\u00f3n muy peque\u00f1a, as\u00ed como otras \u00f3ptimas propiedades magn\u00e9ticamente blandas para observar el efecto de mi.  el efecto de mgnetoimpedancia gigante, es un fen\u00f3meno de origen electromagn\u00e9tico cl\u00e1sico relacionado con la vriaci\u00f3n de impedancia que experimenta un conductor ferromagn\u00e9tico al aplicarle un  campo magn\u00e9tico cont\u00ednuo. Ello se debe a los cambios en la profundidad de penetraci\u00f3n, de la corriente de exitaci\u00f3n a alta frecuencia, al modificarse la permeabilidad magn\u00e9tica transversal del conductor ferromagn\u00e9tico, con la frecuencia de la corriente alterna y con el campo cont\u00ednuo externo.  se estudia la influencia de la anisotrop\u00eda inducida enlas aleacciones ricas en co, mediante  tratmientos t\u00e9rmicos adeduados y la influencia de la magnetostricci\u00f3n y tensiones mec\u00e1ncias de tracci\u00f3ns obre el efecto de mi, conel objetivo del posible desarrollo de sensores magn\u00e9ticos de tensiones mec\u00e1nicas. Tambi\u00e9n se estudia la influencia de los procesos de nanocristalizaci\u00f3n de las aleaciones ricas en fe sobre el efecto de mi.  se ha desarrollado y puesto a punto un dispositivo experimental par ala detecci\u00f3n y medida del m\u00f3dulo de impedancia, as\u00ed como de sus componentes real e imaginaria, que permite aplicar simult\u00e1neamente tensiones mec\u00e1nicas de tracci\u00f3nn e incluso torsiones mec\u00e1ncias a las muestras, durante el proceso de medida.  los resultados experimentales obtenidos,han sido explicados de forma cualitativa mediante un sencillo modelo fenomenol\u00f3gico basado en la din\u00e1mica del paredes de dominios, que en el rango de bajas frecuencias (f-mhz), tiene en cuenta la inclusi\u00f3n de par\u00e1metros del material como su anisotrop<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Manetoimpedancia en aleaciones amorfas de cofesib de baja magnetostriccion<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Manetoimpedancia en aleaciones amorfas de cofesib de baja magnetostriccion <\/li>\n<li><strong>Autor:<\/strong>\u00a0 V\u00edctor Manuel De La Prida Pidal <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Oviedo<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 09\/06\/2000<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3>Direcci\u00f3n y tribunal<\/h3>\n<ul>\n<li><strong>Director de la tesis<\/strong>\n<ul>\n<li>Marcos Tejedor Gancedo<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: jose Rivas rey <\/li>\n<li>Juli\u00e1n Mar\u00eda Gonz\u00e1lez est\u00e9vez (vocal)<\/li>\n<li>Manuel V\u00e1zquez villalabeitia (vocal)<\/li>\n<li>arcady P. zhukov (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de V\u00edctor Manuel De La Prida Pidal En esta tesis doctoral se realiza un estudio del fen\u00f3meno de [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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