{"id":136265,"date":"1997-01-01T00:00:00","date_gmt":"1997-01-01T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/analisis-del-caracter-magnetico-blando-de-aleaciones-nanocristalinas-de-base-fesib\/"},"modified":"1997-01-01T00:00:00","modified_gmt":"1997-01-01T00:00:00","slug":"analisis-del-caracter-magnetico-blando-de-aleaciones-nanocristalinas-de-base-fesib","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/fisica\/analisis-del-caracter-magnetico-blando-de-aleaciones-nanocristalinas-de-base-fesib\/","title":{"rendered":"Analisis del caracter magnetico blando de aleaciones nanocristalinas de base fesib."},"content":{"rendered":"<h2>Tesis doctoral de <strong> Nieves Murillo Hernandez <\/strong><\/h2>\n<p>En esta memoria se analiza de forma sistematica la correlacion entre los estudios microestructurales y magneticos de diferentes sistemas con caracter nanocristalino basados en fesib (con alto contenido en fe) con la adicion de elementos tales como cu, ta, nb, mo y cr.  la preparacion de los materiales nanocristalinos se realiza por cristalizacion del precursor amorfo obtenido por solidificacion rapida, teniendo en cuenta por una parte el caracter metaestable del precursor y, por tanto, el hecho de que estudiando la cinetica del proceso de cristalizacion es posible llegar a controlar tal microestructura. La induccion de la nanoestructura se realiza por tratamiento termico, bien con horno convencional o por corriente electrica (efecto joule), con posibilidad en este ultimo caso de aplicar tension mecanica externa para desarrollar anisotropia magnetica macroscopica. El control de los diferentes parametros de tratamiento termico (tiempo, temperatura, densidad de corriente electrica, velocidad de calentamiento, tension aplicada,&#8230;) Determinan el caracter microestructural y, en consecuencia, la conducta magnetica y magnetoestrictiva.  hay que resaltar que el analisis de la anisotropia y magnetostriccion efectiva de las aleaciones nanocristalinas induce a postular que en ciertos sistemas las interacciones dipolares originan contribuciones significativas tanto a la anisotropia como a la magnetostriccion y, en consecuencia, al campo coercitivo de tales aleaciones nanocristalinas.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Analisis del caracter magnetico blando de aleaciones nanocristalinas de base fesib.<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Analisis del caracter magnetico blando de aleaciones nanocristalinas de base fesib. <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Nieves Murillo Hernandez <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Pa\u00eds vasco\/euskal herriko unibertsitatea<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 01\/01\/1997<\/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>Juli\u00e1n Mar\u00eda Gonz\u00e1lez Est\u00e9vez<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal:  Barandiaran Garcia Jos\u00e9 Manuel <\/li>\n<li>Fabrizio Leccabue (vocal)<\/li>\n<li> Valenzuela Monjaras Raul Alejandro (vocal)<\/li>\n<li>Federico Alberto Cebollada Baratas (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Nieves Murillo Hernandez En esta memoria se analiza de forma sistematica la correlacion entre los estudios microestructurales [&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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