{"id":24846,"date":"2018-03-09T09:15:59","date_gmt":"2018-03-09T09:15:59","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/preparacion-y-caracterizacion-de-materiales-vitreos-de-oxicarburos-de-silicio-reforzados-con-particulas-de-carburos-metalicos\/"},"modified":"2018-03-09T09:15:59","modified_gmt":"2018-03-09T09:15:59","slug":"preparacion-y-caracterizacion-de-materiales-vitreos-de-oxicarburos-de-silicio-reforzados-con-particulas-de-carburos-metalicos","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/preparacion-y-caracterizacion-de-materiales-vitreos-de-oxicarburos-de-silicio-reforzados-con-particulas-de-carburos-metalicos\/","title":{"rendered":"Preparaci\u00f3n y caracterizaci\u00f3n de materiales vitreos de oxicarburos de silicio reforzados con particulas de carburos met\u00e1licos"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Lucia Tellez Jurado <\/strong><\/h2>\n<p>Se han preparado y caracterizado materiales h\u00edbridos mixtos a base teos-pdms y alc\u00f3xidos de ti, zr y al.  estos materiales se han pirolizado obteni\u00e9ndose materiales v\u00edtreos de oxicarburo de silicio en los que se han generado nanopart\u00edculas cristalinas de b-sic, tic, zro2-c, zro2-t, cristobalita y silimanita.  obteni\u00e9ndose las siguientes conclusiones:  * se ha estudiado la obtenci\u00f3n de materiales de oxicarburo de silicio en el sistema si-c-o-m; m=ti, zr, al.  * el incremento de la concentraci\u00f3n de \u00e1cido provoca un aumento en la cantidad y en el tama\u00f1o de la porosidad.  * el incremento del peso molecular del pdms utilizado conduce a materiales con mayor densidad.  * el aumento de la cantidad de metal incorporada provoca mayores porosidades en el caso del circonio y el aluminio.  * en el caso del titanio parece existir una concentraci\u00f3n \u00f3ptima con la que se obtiene un m\u00e1ximo de densidad.  * durante los tratamientos t\u00e9rmicos se pueden describir tres intervalos:  &#8211; hasta 600\u00c2\u00bac-&gt;formaci\u00f3n de la red inorg\u00e1nica.  &#8211; 600-1300\u00c2\u00bac-&gt; procesos de mineralizaci\u00f3n y densificaci\u00f3n.  &#8211; a partir de 1300\u00c2\u00bac-&gt; degradaci\u00f3n de material y formaci\u00f3n de carburos.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Preparaci\u00f3n y caracterizaci\u00f3n de materiales vitreos de oxicarburos de silicio reforzados con particulas de carburos met\u00e1licos<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Preparaci\u00f3n y caracterizaci\u00f3n de materiales vitreos de oxicarburos de silicio reforzados con particulas de carburos met\u00e1licos <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Lucia Tellez Jurado <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Aut\u00f3noma de Madrid<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 17\/07\/2003<\/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>Juan Rubio Alonso<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: vicente Fernandez herrero <\/li>\n<li>Jos\u00e9 Mar\u00eda Guil pinto (vocal)<\/li>\n<li> Rodr\u00edguez l\u00f3pez Jos\u00e9 gonzalo (vocal)<\/li>\n<li>Jos\u00e9 Mar\u00eda Gomez de salazar caso de los cobos (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Lucia Tellez Jurado Se han preparado y caracterizado materiales h\u00edbridos mixtos a base teos-pdms y alc\u00f3xidos 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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