{"id":133438,"date":"1997-01-01T00:00:00","date_gmt":"1997-01-01T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/preparacion-de-papel-magnetico-caracterizacion-quimico-fisica\/"},"modified":"1997-01-01T00:00:00","modified_gmt":"1997-01-01T00:00:00","slug":"preparacion-de-papel-magnetico-caracterizacion-quimico-fisica","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/quimica\/preparacion-de-papel-magnetico-caracterizacion-quimico-fisica\/","title":{"rendered":"Preparacion de papel magnetico. caracterizacion quimico-fisica."},"content":{"rendered":"<h2>Tesis doctoral de <strong>  Carrazana Garcia Jorge  A. <\/strong><\/h2>\n<p>En la presente investigacion se propone un metodo para la magnetizacion de materiales celulosicos que permite la preparacion de hojas de papel magnetico con campos coercitivos (hc) y magnetizaciones de saturacion (ms) superiores a los de algunos medios de registro comerciales, que actualmente se producen por vias diferentes a la aqui presentada. El metodo propuesto, combina la obtencion de particulas de ferrita en presencia de fibras de celulosa (sintesis in situ) con la posterior carga de la cavidad interior de las fibras (lumen) con las particulas magneticas formadas en el seno de la fase liquida. Como via para elevar el hc de los papeles obtenidos hasta valores de interes para su aplicacion en registro magnetico, se sustituyen parte de los iones fe2+ de la suspension inicial, por co2+ y\/o ni2+. La influencia de seis importantes variables experimentales en las propiedades de las muestras preparadas, se evalua mediante la ejecucion de un dise\u00f1o de experimentos. Las muestras obtenidas son analizadas mediante la aplicacion de numerosas tecnicas quimico-fisicas: magnetometria de muestra vibrante y squid, difraccion de rayos x, microscopia electronica de transmision y de barrido, microelectroforesis, termogravimetria en presencia de campo magnetico.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Preparacion de papel magnetico. caracterizacion quimico-fisica.<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Preparacion de papel magnetico. caracterizacion quimico-fisica. <\/li>\n<li><strong>Autor:<\/strong>\u00a0  Carrazana Garcia Jorge  A. <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Santiago de compostela<\/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>Manuel Arturo L\u00f3pez Quintela<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Julio Casado Linarejos <\/li>\n<li>Ivan Rodriguez Rico (vocal)<\/li>\n<li>Jos\u00e9 Rivas Rey (vocal)<\/li>\n<li>  (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Carrazana Garcia Jorge A. En la presente investigacion se propone un metodo para la magnetizacion de materiales [&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 center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"footnotes":""},"categories":[41446,199,17,560,966,977],"tags":[247422,247423,2493,565,2751],"class_list":["post-133438","post","type-post","status-publish","format-standard","hentry","category-celulosa","category-fisica","category-quimica","category-quimica-fisica","category-quimica-macromolecular","category-santiago-de-compostela","tag-carrazana-garcia-jorge-a","tag-ivan-rodriguez-rico","tag-jose-rivas-rey","tag-julio-casado-linarejos","tag-manuel-arturo-lopez-quintela"],"_links":{"self":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts\/133438","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/comments?post=133438"}],"version-history":[{"count":0,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts\/133438\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/media?parent=133438"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/categories?post=133438"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/tags?post=133438"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}