{"id":21967,"date":"2003-07-03T00:00:00","date_gmt":"2003-07-03T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/caracterizacion-de-alambres-ortodoncicos-de-na%c2%adquel-titanio\/"},"modified":"2003-07-03T00:00:00","modified_gmt":"2003-07-03T00:00:00","slug":"caracterizacion-de-alambres-ortodoncicos-de-na%c2%adquel-titanio","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/caracterizacion-de-alambres-ortodoncicos-de-na%c2%adquel-titanio\/","title":{"rendered":"Caracterizaci\u00f3n de alambres ortod\u00f3ncicos de n\u00edquel titanio"},"content":{"rendered":"<h2>Tesis doctoral de <strong>  Manglano Borso Di Carminati Cayetana <\/strong><\/h2>\n<p>Introducci\u00f3n  la gran variabilidad en el comportamiento de los alambres niti y su frecuente uso, plantean cierta confusi\u00f3n en el cl\u00ednico que se pretenden resilver en esta investigaci\u00f3n.  objetivos  caracterizar los alambres niti desde una perspectiva global.  material y m\u00e9todos  como grupo experimental 13 alambres niti de distintas casas comerciales y como grupo control el acero y cromo cobalto. Se realizaron ensayos de tracci\u00f3n, microan\u00e1lisis de rayos x, microscopia electr\u00f3nica de barrido, calorimetr\u00eda, ensayos de corrosi\u00f3n, liberaci\u00f3n de iones ni y ti, pruebas de ciclado t\u00e9rmico y transformaci\u00f3n din\u00e1mica a tiempo real con microscop\u00eda electr\u00f3nica de ambiente.  resultados y discusi\u00f3n  en el ensayo mec\u00e1nico de tracci\u00f3n se observaron distintos tipos de comportamiento desde el superel\u00e1stico al no superel\u00e1stico. En la composici\u00f3n qu\u00edmica todos los alambres ensayados se encontraban cerca de la composici\u00f3n estequiom\u00e9trica con muy peque\u00f1as variaciones entre todos.  los resultados de calorimetr\u00eda indican que existen variaciones importantes en las temperaturas de transformaci\u00f3n entre unos y otros alambres niti.  en los resultados de voltametr\u00eda c\u00edclicad de los ensayos de corrosi\u00f3n se observo que aumenta la capacidad de corrosi\u00f3n de los alambres niti bajo tensi\u00f3n y por el aumento de niquel en la composici\u00f3n qu\u00edmica. La liberaci\u00f3n de iones niquel en ning\u00fan caso fue t\u00f3xica y siempre estuvo por debado de la ingerida por agua potable. En los resultados de ciclado t\u00e9rmico a 120 grados se observ\u00f3 una disminuci\u00f3n en las tensiones de transformaic\u00f3n, y a 550 grados cent\u00edgrados aparece una gran cantidad de precipitados provocando la amnesia de la aleaci\u00f3n .  en la transformaci\u00f3n din\u00e1mica se observa que bajo tensi\u00f3n la aleaci\u00f3n presenta memoria estructural y que los lugares de nucleaci\u00f3n de las placas de martensita parecen ser los v\u00e9rtices de los l\u00edmites de grano.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Caracterizaci\u00f3n de alambres ortod\u00f3ncicos de n\u00edquel titanio<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Caracterizaci\u00f3n de alambres ortod\u00f3ncicos de n\u00edquel titanio <\/li>\n<li><strong>Autor:<\/strong>\u00a0  Manglano Borso Di Carminati Cayetana <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Universitat de val\u00e9ncia (estudi general)<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 07\/03\/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> Manglano De Mas Jos\u00e9 Luis<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Francisco Dalmases moncayo <\/li>\n<li>Jos\u00e9 Mar\u00eda Manero planella (vocal)<\/li>\n<li>Jos\u00e9 vicente Bagan sebastian (vocal)<\/li>\n<li>Alberto Bravo Luis (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Manglano Borso Di Carminati Cayetana Introducci\u00f3n la gran variabilidad en el comportamiento de los alambres niti y [&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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