{"id":802,"date":"2025-08-27T10:02:04","date_gmt":"2025-08-27T13:02:04","guid":{"rendered":"http:\/\/172.16.1.60\/?page_id=802"},"modified":"2025-12-04T14:14:26","modified_gmt":"2025-12-04T18:14:26","slug":"microscopia-eletronica","status":"publish","type":"page","link":"http:\/\/cmabio.uea.edu.br\/index.php\/microscopia-eletronica\/","title":{"rendered":"Microscopia Eletr\u00f4nica"},"content":{"rendered":"\n<div class=\"wp-block-stackable-columns alignfull stk-block-columns stk-block stk-51b2b12 stk-block-background stk--has-background-overlay\" data-block-id=\"51b2b12\"><style>.stk-51b2b12 .stk--block-align-51b2b12{align-items:center !important;}.stk-51b2b12 {background-color:#000000 !important;background-image:url(http:\/\/cmabio.uea.edu.br\/wp-content\/uploads\/2025\/11\/blog10.jpg) !important;background-position:bottom center !important;background-repeat:no-repeat !important;background-size:cover !important;padding-top:300px !important;padding-bottom:200px !important;margin-bottom:0px !important;}.stk-51b2b12:before{background-color:#000000 !important;opacity:0.6 !important;}.stk-51b2b12-column{--stk-column-gap:35px !important;row-gap:35px !important;}@media screen and (max-width:999px){.stk-51b2b12 {padding-top:250px !important;padding-bottom:150px !important;}}@media screen and (max-width:689px){.stk-51b2b12 {padding-top:150px !important;padding-bottom:100px !important;}}<\/style><div class=\"stk-row stk-inner-blocks stk--block-align-51b2b12 stk-block-content stk-content-align stk-51b2b12-column alignfull\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-0e2597c\" data-v=\"4\" data-block-id=\"0e2597c\"><style>.stk-0e2597c-container{margin-top:0px !important;margin-right:0px !important;margin-bottom:0px !important;margin-left:0px !important;}<\/style><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-0e2597c-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-0e2597c-inner-blocks\">\n<div class=\"wp-block-stackable-heading stk-block-heading stk-block-heading--v2 stk-block stk-45aa733\" id=\"microscopia-eletronica\" data-block-id=\"45aa733\"><style>.stk-45aa733 .stk-block-heading__text{color:var(--theme-palette-color-6, #F3F5F9) !important;}<\/style><h2 class=\"stk-block-heading__text has-text-color has-text-align-center\">Microscopia Eletr\u00f4nica<\/h2><\/div>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-spacer stk-block-spacer stk--no-padding stk-block stk-795c83a\" data-block-id=\"795c83a\"><style>.stk-795c83a {height:140px !important;}<\/style><\/div>\n\n\n\n<div class=\"wp-block-stackable-heading stk-block-heading stk-block-heading--v2 stk-block stk-bdcb026\" id=\"o-que-e\" data-block-id=\"bdcb026\"><style>.stk-bdcb026 .stk-block-heading__text{font-size:30px !important;font-weight:800 !important;font-family:system-ui, sans-serif !important;}@media screen and (max-width:999px){.stk-bdcb026 .stk-block-heading__text{font-size:30px !important;}}<\/style><h2 class=\"stk-block-heading__text\">O que \u00e9?<\/h2><\/div>\n\n\n\n<p>A microscopia eletr\u00f4nica permite a forma\u00e7\u00e3o de uma imagem resultante da intera\u00e7\u00e3o de um feixe de el\u00e9trons incidentes sobre o material a ser observado, dando origem a sinais os quais s\u00e3o captados por diferentes detectores, fornecendo informa\u00e7\u00f5es caracter\u00edsticas sobre a amostra. O microsc\u00f3pio eletr\u00f4nico apresenta um poder de resolu\u00e7\u00e3o potencialmente superior ao do microsc\u00f3pio de luz, atingindo valores inferiores a 1 nan\u00f4metro.<\/p>\n\n\n\n<p>Assim, com uma voltagem suficientemente alta, el\u00e9trons de comprimentos de ondas extremamente curtos podem ser produzidos e focalizados por lentes eletrost\u00e1ticas e eletromagn\u00e9ticas e, ent\u00e3o, capazes de gerar imagens com aumentos superiores a 500.000 vezes.<\/p>\n\n\n\n<div class=\"wp-block-stackable-heading stk-block-heading stk-block-heading--v2 stk-block stk-4129e18\" id=\"microscopia-eletronica-de-varredura-mev\" data-block-id=\"4129e18\"><style>.stk-4129e18 .stk-block-heading__text{font-size:30px !important;font-weight:800 !important;font-family:system-ui, sans-serif !important;}@media screen and (max-width:999px){.stk-4129e18 .stk-block-heading__text{font-size:30px !important;}}<\/style><h2 class=\"stk-block-heading__text\">Microscopia Eletr\u00f4nica de Varredura (MEV)<\/h2><\/div>\n\n\n\n<p>O princ\u00edpio de funcionamento de um microsc\u00f3pio eletr\u00f4nico de varredura se baseia na utiliza\u00e7\u00e3o de um feixe de el\u00e9trons de pequeno di\u00e2metro que s\u00e3o defletidos por um sistema de bobinas, guiando o feixe de modo a varrer a superf\u00edcie da amostra, a explorando ponto a ponto, por linhas sucessivas e transmitindo o sinal do detector a uma tela cat\u00f3dica.<\/p>\n\n\n\n<p>MEV est\u00e1 acoplado ainda com um detector de EDS (espectr\u00f4metro de raio-X de energia dispersiva), o qual analisa informa\u00e7\u00f5es resultantes da emiss\u00e3o de raios-X, o que permite, tamb\u00e9m, analisar a composi\u00e7\u00e3o qu\u00edmica do material alvo de estudo.<\/p>\n\n\n\n<p>Assim, a microscopia eletr\u00f4nica de varredura possibilita a obten\u00e7\u00e3o de informa\u00e7\u00f5es estruturais e qu\u00edmicas de diversas amostras. Permite estudar a superf\u00edcie de materiais, avaliando a microestrutura e correlacion\u00e1-las com suas poss\u00edveis propriedades, bem como defeitos, visando aplica\u00e7\u00f5es funcionais dessas amostras.<\/p>\n\n\n\n<div class=\"wp-block-stackable-spacer stk-block-spacer stk--no-padding stk-block stk-b8a62c3\" data-block-id=\"b8a62c3\"><style>.stk-b8a62c3 {height:140px !important;}<\/style><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Microscopia Eletr\u00f4nica O que \u00e9? A microscopia eletr\u00f4nica permite a forma\u00e7\u00e3o de uma imagem resultante da intera\u00e7\u00e3o de um feixe de el\u00e9trons incidentes sobre o material a ser observado, dando origem a sinais os quais s\u00e3o captados por diferentes detectores, fornecendo informa\u00e7\u00f5es caracter\u00edsticas sobre a amostra. O microsc\u00f3pio eletr\u00f4nico apresenta um poder de resolu\u00e7\u00e3o potencialmente [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"class_list":["post-802","page","type-page","status-publish","hentry"],"blocksy_meta":{"page_title_panel":"","has_hero_section":"disabled","fe1c64ab89945cda534f4bb2d579ae1a":"","hero_section":"type-1","hero_elements":[{"id":"custom_title","enabled":true,"heading_tag":"h1","title":"Home"},{"id":"custom_description","enabled":true,"description_visibility":{"desktop":true,"tablet":true,"mobile":false}},{"id":"custom_meta","enabled":false,"meta_elements":[{"id":"author","enabled":true,"label":"By","has_author_avatar":"yes","avatar_size":25},{"id":"post_date","enabled":true,"label":"On","date_format_source":"default","date_format":"M 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