{"id":131087,"date":"1996-01-01T00:00:00","date_gmt":"1996-01-01T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/recubrimientos-de-yba2cu3o7-mediante-electrodeposicion-y-electroforesis\/"},"modified":"1996-01-01T00:00:00","modified_gmt":"1996-01-01T00:00:00","slug":"recubrimientos-de-yba2cu3o7-mediante-electrodeposicion-y-electroforesis","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/fisica\/recubrimientos-de-yba2cu3o7-mediante-electrodeposicion-y-electroforesis\/","title":{"rendered":"Recubrimientos de yba2cu3o7 mediante electrodeposicion y electroforesis."},"content":{"rendered":"<h2>Tesis doctoral de <strong> Sebastian Ondo\u00f1o Castillo <\/strong><\/h2>\n<p>La utilizacion de metodos electro-quimicos permite la obtencion de recubrimientos superconductores de ybacuo sobre substratos metalicos en forma de hilo o sobre sustratos de geometria tan variada como placas o anillos.  por un lado, la electrodeposicion simultanea de los tres metales que forman la fase superconductora a partir de una disolucion en dmso de sus nitratos, se ha conseguido con el uso de agentes complejantes. La formacion de complejos estables de estos agenestes con el cobre modifica el potencial de deposicion de este acercandolo al de los otros dos cationes y hace factible la codeposicion.  el posterior tratamiento de este deposito metalico en oxigeno a 900c y la posterior oxigenacion a 450c nos proporciona hilos superconductores con una fraccion superconductora superior al 60% en ausencia de campo y una corriente critica de 500 a\/cm2.  de otro lado el metodo de electroforesis permite, a partir de una suspension del oxido superconductor en un medio organico y mediante la aplicacion entre los electrodos de trabajo de una elevada diferencia de potencial, que las particulas de oxido coagulen en el electrodo negativo en forma de depositos homogeneos y bien adheridos. En ellos existe un cierto grado de orientacion preferencial de las particulas de ybacuo cuyo origen es discutido. Se obtienen corrientes criticas de 4500 y 20.000 a\/cm2 a 77 y 5 k respectivamente.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Recubrimientos de yba2cu3o7 mediante electrodeposicion y electroforesis.<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Recubrimientos de yba2cu3o7 mediante electrodeposicion y electroforesis. <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Sebastian Ondo\u00f1o Castillo <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Aut\u00f3noma de barcelona<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 01\/01\/1996<\/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>Nieves Casa\u00f1  Pastor<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Rafael Navarro Linares <\/li>\n<li>Rafael Iba\u00f1ez Puchades (vocal)<\/li>\n<li>Carlos Muller Jevenois (vocal)<\/li>\n<li>Marie Tarascon Jean (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Sebastian Ondo\u00f1o Castillo La utilizacion de metodos electro-quimicos permite la obtencion de recubrimientos superconductores de ybacuo sobre 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