{"id":16889,"date":"2023-10-07T06:52:01","date_gmt":"2023-10-07T06:52:01","guid":{"rendered":"https:\/\/bemagnet.com\/?p=16889"},"modified":"2023-10-07T06:52:01","modified_gmt":"2023-10-07T06:52:01","slug":"o-niquel-e-magnetico","status":"publish","type":"post","link":"https:\/\/bemagnet.com\/pt\/is-nickel-magnetic\/","title":{"rendered":"O n\u00edquel \u00e9 magn\u00e9tico?"},"content":{"rendered":"

O n\u00edquel \u00e9 magn\u00e9tico.<\/p>\n

Metais magn\u00e9ticos<\/a> t\u00eam tipicamente electr\u00f5es n\u00e3o emparelhados. O n\u00edquel cont\u00e9m electr\u00f5es n\u00e3o emparelhados na sua camada exterior, o que o torna magn\u00e9tico.<\/p>\n

O n\u00edquel est\u00e1 classificado entre os metais ferromagn\u00e9ticos, o que significa que \u00e9 altamente magn\u00e9tico e tamb\u00e9m pode ser transformado num \u00edman com o seu campo magn\u00e9tico. O n\u00edquel tem um ponto de curie de 355\u00b0C, se for sujeito a temperaturas superiores a este ponto. O n\u00edquel perde o seu magnetismo.<\/p>\n

\"Vis\u00e3o
Vis\u00e3o geral do n\u00edquel<\/figcaption><\/figure>\n

Propriedades magn\u00e9ticas do n\u00edquel<\/h2>\n

Existem tr\u00eas tipos diferentes de magnetismo exibidos pelos metais que s\u00e3o tanto magn\u00e9ticos como n\u00e3o magn\u00e9ticos. O ferromagnetismo, o diamagnetismo e o paramagnetismo.<\/p>\n

As propriedades magn\u00e9ticas de um metal s\u00e3o as principais determinantes do tipo de magnetismo que o metal ir\u00e1 apresentar. O n\u00edquel apresenta ferromagnetismo e paramagnetismo quando perde o seu magnetismo.<\/p>\n

Os metais ferromagn\u00e9ticos cont\u00eam \u00e1tomos cuja for\u00e7a magn\u00e9tica e orienta\u00e7\u00e3o se alinham na mesma dire\u00e7\u00e3o, formando um forte campo magn\u00e9tico. Estes metais cont\u00eam \u00e1tomos n\u00e3o emparelhados, o que os torna fortemente magn\u00e9ticos. Os metais ferromagn\u00e9ticos podem manter a sua polariza\u00e7\u00e3o magn\u00e9tica mesmo na aus\u00eancia de um campo magn\u00e9tico.<\/p>\n

\"Estrutura
Estrutura molecular do n\u00edquel<\/figcaption><\/figure>\n

Quando o n\u00edquel \u00e9 exposto a temperaturas superiores ao seu ponto curie, perde o seu magnetismo. O n\u00edquel exposto apresenta ent\u00e3o paramagnetismo.<\/p>\n

Os metais paramagn\u00e9ticos funcionam, em princ\u00edpio, de forma oposta aos metais diamagn\u00e9ticos. Quando sujeitos a um campo magn\u00e9tico, os \u00e1tomos do metal alinham-se numa dire\u00e7\u00e3o semelhante \u00e0 do campo. Esta rea\u00e7\u00e3o conduz a uma atra\u00e7\u00e3o fraca.<\/p>\n

Os metais diamagn\u00e9ticos t\u00eam uma fraca repuls\u00e3o quando aproximados de um campo magn\u00e9tico. Quando expostos a um campo magn\u00e9tico, cada \u00e1tomo alinha-se na dire\u00e7\u00e3o oposta.<\/p>\n

O n\u00edquel pode tornar-se um \u00edman?<\/h2>\n

O n\u00edquel pode ser magnetizado para se tornar um \u00edman permanente<\/a>. O n\u00edquel \u00e9 um ferromagn\u00e9tico<\/a> e uma das suas propriedades \u00e9 a capacidade de manter o magnetismo mesmo depois de o campo magn\u00e9tico ter sido retirado.<\/p>\n

Quando o n\u00edquel est\u00e1 sujeito a uma campo magn\u00e9tico<\/a> o momento magn\u00e9tico dos seus \u00e1tomos alinha os momentos do campo permitindo-lhe reter o magnetismo.<\/p>","protected":false},"excerpt":{"rendered":"

Nickel is magnetic. Magnetic metals typically have unpaired electrons. Nickel contains unpaired electrons in its outer shell making it magnetic. Nickel is categorized under ferromagnetic metals meaning it is highly magnetic and can also be turned into a magnet with its magnetic field. Nickel has a curie point of 355\u00b0C if subjected to temperatures above […]<\/p>\n","protected":false},"author":1,"featured_media":16892,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","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":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"default","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"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-opacity":"","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-opacity":"","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-opacity":"","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-opacity":"","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-opacity":"","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-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[1],"tags":[],"class_list":["post-16889","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"acf":[],"yoast_head":"\nIs Nickel Magnetic - Dailymag<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/bemagnet.com\/pt\/o-niquel-e-magnetico\/\" \/>\n<meta property=\"og:locale\" content=\"pt_PT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Is Nickel Magnetic - Dailymag\" \/>\n<meta property=\"og:description\" content=\"Nickel is magnetic. 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