{"id":145244,"date":"1993-01-01T00:00:00","date_gmt":"1993-01-01T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/estudio-de-distribucion-de-polarizacion-en-materiales-ferroelectricos-por-medio-de-ondas-termicas-sinusoidales-de-baja-frecuencia\/"},"modified":"1993-01-01T00:00:00","modified_gmt":"1993-01-01T00:00:00","slug":"estudio-de-distribucion-de-polarizacion-en-materiales-ferroelectricos-por-medio-de-ondas-termicas-sinusoidales-de-baja-frecuencia","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/fisica\/estudio-de-distribucion-de-polarizacion-en-materiales-ferroelectricos-por-medio-de-ondas-termicas-sinusoidales-de-baja-frecuencia\/","title":{"rendered":"Estudio de distribucion de polarizacion en materiales ferroelectricos por medio de ondas termicas sinusoidales de baja frecuencia"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Jos\u00e9 De Frutos  Vaquerizo <\/strong><\/h2>\n<p>Se fundamenta teoricamente y se desarrolla experimentalmente un nuevo metodo no destructivo para determinar la distribucion de polarizacion en materiales ferroelectricos independientemente de su naturaleza y del espesor de las muestras. Posteriormente se verifica la validez del metodo aplicandolo a tgs (monocristal), pzt (ceramico) y pvdf (polimero) y comparando los resultados obtenidos con los existentes en la bibliografia. De esta manera se justifica la validez del metodo.  por ultimo se aplica el metodo al conocimiento de polarizacion en materiales ceramicos de titanato de plomo modificado con calcio en funcion del contenido de calcio, del campo y del proceso de polarizacion y de la temperatura. Los resultados se complementan con medidas de difraccion de rayos x, dilatacion termica y remanencia de d33 para determinar dominios 90 grados reorlentados, y de diagramas p-t y remanencia de dominios 90 grados con la temperatura para entender el comportamiento con la temperatura.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Estudio de distribucion de polarizacion en materiales ferroelectricos por medio de ondas termicas sinusoidales de baja frecuencia<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Estudio de distribucion de polarizacion en materiales ferroelectricos por medio de ondas termicas sinusoidales de baja frecuencia <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Jos\u00e9 De Frutos  Vaquerizo <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Aut\u00f3noma de Madrid<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 01\/01\/1993<\/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>Basilio Jim\u00e9nez D\u00edaz<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Carlos Sanchez <\/li>\n<li>Jes\u00fas Mendiola (vocal)<\/li>\n<li>Jos\u00e9 Serna (vocal)<\/li>\n<li>Carlos Moure (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Jos\u00e9 De Frutos Vaquerizo Se fundamenta teoricamente y se desarrolla experimentalmente un nuevo metodo no destructivo para [&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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