{"id":117468,"date":"2022-09-19T14:32:00","date_gmt":"2022-09-19T13:32:00","guid":{"rendered":"https:\/\/material-properties.org\/boro-e-carbono-comparacao-propriedades\/"},"modified":"2022-10-31T10:03:44","modified_gmt":"2022-10-31T09:03:44","slug":"boro-e-carbono-comparacao-propriedades","status":"publish","type":"post","link":"https:\/\/material-properties.org\/pt-br\/boro-e-carbono-comparacao-propriedades\/","title":{"rendered":"Boro e Carbono &#8211; Compara\u00e7\u00e3o &#8211; Propriedades"},"content":{"rendered":"<p><em><span>Este artigo cont\u00e9m uma compara\u00e7\u00e3o das principais propriedades t\u00e9rmicas e at\u00f4micas do boro e do carbono, dois elementos qu\u00edmicos compar\u00e1veis \u200b\u200bda tabela peri\u00f3dica.\u00a0Ele tamb\u00e9m cont\u00e9m descri\u00e7\u00f5es b\u00e1sicas e aplica\u00e7\u00f5es de ambos os elementos.\u00a0Boro vs. Carbono.<\/span><\/em><\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter size-full wp-image-106228\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2021\/01\/boron-and-carbon-comparison.png\" alt=\"boro e carbono - compara\u00e7\u00e3o\" width=\"1000\" height=\"900\" srcset=\"https:\/\/material-properties.org\/wp-content\/uploads\/2021\/01\/boron-and-carbon-comparison.png 1000w, https:\/\/material-properties.org\/wp-content\/uploads\/2021\/01\/boron-and-carbon-comparison-300x270.png 300w, https:\/\/material-properties.org\/wp-content\/uploads\/2021\/01\/boron-and-carbon-comparison-768x691.png 768w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><\/p>\n<div  class=\"lgc-column lgc-grid-parent lgc-grid-50 lgc-tablet-grid-50 lgc-mobile-grid-100 lgc-equal-heights \"><div  class=\"inside-grid-column\">\n<div class=\"su-spoiler su-spoiler-style-modern-light su-spoiler-icon-plus su-spoiler-closed\" data-scroll-offset=\"0\" data-anchor-in-url=\"no\"><div class=\"su-spoiler-title\" tabindex=\"0\" role=\"button\"><span class=\"su-spoiler-icon\"><\/span>Compare Boro com outro elemento<\/div><div class=\"su-spoiler-content su-u-clearfix su-u-trim\">\n<div class=\"su-divider su-divider-style-dotted\" style=\"margin:25px 0;border-width:3px;border-color:#999999\"><\/div>\n<p><a href=\"https:\/\/material-properties.org\/boron-and-oxygen-comparison-properties\/\"><img decoding=\"async\" loading=\"lazy\" class=\"alignleft\" title=\"Compare with Oxygen\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/10\/Oxygen-properties-price-application-production-150x150.png\" alt=\"Oxygen - Properties - Price - Applications - Production\" width=\"150\" height=\"150\" \/><\/a><\/p>\n<p><a href=\"https:\/\/material-properties.org\/boron-and-nitrogen-comparison-properties\/\"><img decoding=\"async\" loading=\"lazy\" class=\"alignleft\" title=\"Compare with Nitrogen\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/10\/Nitrogen-properties-price-application-production-150x150.png\" alt=\"Nitrogen - Properties - Price - Applications - Production\" width=\"150\" height=\"150\" \/><\/a><\/p>\n<p><a href=\"https:\/\/material-properties.org\/boron-and-chlorine-comparison-properties\/\"><img decoding=\"async\" loading=\"lazy\" class=\"alignleft\" title=\"Compare with Chlorine\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/10\/Chlorine-properties-price-application-production-150x150.png\" alt=\"Chlorine - Properties - Price - Applications - Production\" width=\"150\" height=\"150\" \/><\/a><\/p>\n<p><a href=\"https:\/\/material-properties.org\/boron-and-carbon-comparison-properties\/\"><img decoding=\"async\" loading=\"lazy\" class=\"alignleft\" title=\"Compare with Carbon\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/10\/Carbon-properties-price-application-production-150x150.png\" alt=\"Carbon - Properties - Price - Applications - Production\" width=\"150\" height=\"150\" \/><\/a><\/p>\n<p><a href=\"https:\/\/material-properties.org\/boron-and-silicon-comparison-properties\/\"><img decoding=\"async\" loading=\"lazy\" class=\"alignleft\" title=\"Compare with Silicon\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/10\/Silicon-properties-price-application-production-150x150.png\" alt=\"Silicon - Properties - Price - Applications - Production\" width=\"150\" height=\"150\" \/><\/a><\/p>\n<\/div><\/div>\n<\/div><\/div>\n<div  class=\"lgc-column lgc-grid-parent lgc-grid-50 lgc-tablet-grid-50 lgc-mobile-grid-100 lgc-equal-heights \"><div  class=\"inside-grid-column\">\n<div class=\"su-spoiler su-spoiler-style-modern-light su-spoiler-icon-plus su-spoiler-closed\" data-scroll-offset=\"0\" data-anchor-in-url=\"no\"><div class=\"su-spoiler-title\" tabindex=\"0\" role=\"button\"><span class=\"su-spoiler-icon\"><\/span>Compare o Carbono com outro elemento<\/div><div class=\"su-spoiler-content su-u-clearfix su-u-trim\">\n<div class=\"su-divider su-divider-style-dotted\" style=\"margin:25px 0;border-width:3px;border-color:#999999\"><\/div>\n<p><a href=\"https:\/\/material-properties.org\/hydrogen-and-carbon-comparison-properties\/\"><img decoding=\"async\" loading=\"lazy\" class=\"alignleft\" title=\"Compare with Hydrogen\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/10\/Hydrogen-properties-price-application-production-150x150.png\" alt=\"Hydrogen - Properties - Price - Applications - Production\" width=\"150\" height=\"150\" \/><\/a><\/p>\n<p><a href=\"https:\/\/material-properties.org\/boron-and-carbon-comparison-properties\/\"><img decoding=\"async\" loading=\"lazy\" class=\"alignleft\" title=\"Compare with Boron\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/10\/Boron-properties-price-application-production-150x150.png\" alt=\"Boron - Properties - Price - Applications - Production\" width=\"150\" height=\"150\" \/><\/a><\/p>\n<p><a href=\"https:\/\/material-properties.org\/carbon-and-oxygen-comparison-properties\/\"><img decoding=\"async\" loading=\"lazy\" class=\"alignleft\" title=\"Compare with Oxygen\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/10\/Oxygen-properties-price-application-production-150x150.png\" alt=\"Oxygen - Properties - Price - Applications - Production\" width=\"150\" height=\"150\" \/><\/a><\/p>\n<p><a href=\"https:\/\/material-properties.org\/carbon-and-aluminium-comparison-properties\/\"><img decoding=\"async\" loading=\"lazy\" class=\"alignleft\" title=\"Compare with Aluminium\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/10\/Aluminium-properties-price-application-production-150x150.png\" alt=\"Aluminium - Properties - Price - Applications - Production\" width=\"150\" height=\"150\" \/><\/a><\/p>\n<p><a href=\"https:\/\/material-properties.org\/carbon-and-nitrogen-comparison-properties\/\"><img decoding=\"async\" loading=\"lazy\" class=\"alignleft\" title=\"Compare with Nitrogen\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/10\/Nitrogen-properties-price-application-production-150x150.png\" alt=\"Nitrogen - Properties - Price - Applications - Production\" width=\"150\" height=\"150\" \/><\/a><\/p>\n<p><a href=\"https:\/\/material-properties.org\/carbon-and-iron-comparison-properties\/\"><img decoding=\"async\" loading=\"lazy\" class=\"alignleft\" title=\"Compare with Iron\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/10\/Iron-properties-price-application-production-150x150.png\" alt=\"Iron - Properties - Price - Applications - Production\" width=\"150\" height=\"150\" \/><\/a><\/p>\n<p><a href=\"https:\/\/material-properties.org\/carbon-and-chlorine-comparison-properties\/\"><img decoding=\"async\" loading=\"lazy\" class=\"alignleft\" title=\"Compare with Chlorine\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/10\/Chlorine-properties-price-application-production-150x150.png\" alt=\"Chlorine - Properties - Price - Applications - Production\" width=\"150\" height=\"150\" \/><\/a><\/p>\n<p><a href=\"https:\/\/material-properties.org\/carbon-and-bromine-comparison-properties\/\"><img decoding=\"async\" loading=\"lazy\" class=\"alignleft\" title=\"Compare with Bromine\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/10\/Bromine-properties-price-application-production-150x150.png\" alt=\"Bromine - Properties - Price - Applications - Production\" width=\"150\" height=\"150\" \/><\/a><\/p>\n<\/div><\/div>\n<\/div><\/div>\n<div class=\"su-spacer\" style=\"height:20px\"><\/div>\n<div class=\"su-heading su-heading-style-modern-1-dark su-heading-align-left\" id=\"\" style=\"font-size:13px;margin-bottom:20px\"><div class=\"su-heading-inner\">\n<h2><span>Boro e Carbono &#8211; Sobre Elementos<\/span><\/h2>\n<\/div><\/div>\n<div  class=\"lgc-column lgc-grid-parent lgc-grid-50 lgc-tablet-grid-50 lgc-mobile-grid-100 lgc-equal-heights \"><div  class=\"inside-grid-column\">\n<div class=\"sue-icon-text sue-panel-clickable\" data-url=\"https:\/\/material-properties.org\/boron-properties-applications-price-production\/\" data-target=\"self\" style=\"min-height:58px;padding-left:72px;color:#000000\"><div class=\"sue-icon-text-icon\" style=\"color:#5dbcd2;font-size:48px;width:48px;height:48px\"><i class=\"sui sui-info-circle\" style=\"font-size:48px;color:#5dbcd2\"><\/i><\/div><div class=\"sue-icon-text-content sue-content-wrap\" style=\"color:#000000\">\n<h3><span>Boro<\/span><\/h3>\n<p>Concentra\u00e7\u00f5es significativas de boro ocorrem na Terra em compostos conhecidos como minerais de borato.\u00a0Existem mais de 100 minerais de borato diferentes, mas os mais comuns s\u00e3o: b\u00f3rax, quernita, ulexita etc. O boro natural consiste principalmente em dois is\u00f3topos est\u00e1veis, 11B (80,1%) e 10B (19,9%).\u00a0Na ind\u00fastria nuclear, o boro \u00e9 comumente usado como absorvedor de n\u00eautrons devido \u00e0 alta se\u00e7\u00e3o transversal de n\u00eautrons do is\u00f3topo 10B.\u00a0Sua se\u00e7\u00e3o de choque de rea\u00e7\u00e3o (n,alfa) para n\u00eautrons t\u00e9rmicos \u00e9 de cerca de 3840 barns (para n\u00eautrons de 0,025 eV).\u00a0O is\u00f3topo 11B tem se\u00e7\u00e3o transversal de absor\u00e7\u00e3o para n\u00eautrons t\u00e9rmicos de cerca de 0,005 barns (para n\u00eautrons de 0,025 eV).\u00a0A maioria das rea\u00e7\u00f5es (n,alfa) de n\u00eautrons t\u00e9rmicos s\u00e3o rea\u00e7\u00f5es 10B(n,alfa)7Li acompanhadas por emiss\u00e3o gama de 0,48 MeV.<\/p>\n<\/div><div style=\"clear:both;height:0\"><\/div><\/div>\n<\/div><\/div>\n<div  class=\"lgc-column lgc-grid-parent lgc-grid-50 lgc-tablet-grid-50 lgc-mobile-grid-100 lgc-equal-heights \"><div  class=\"inside-grid-column\">\n<div class=\"sue-icon-text sue-panel-clickable\" data-url=\"https:\/\/material-properties.org\/carbon-properties-applications-price-production\/\" data-target=\"self\" style=\"min-height:58px;padding-left:72px;color:#000000\"><div class=\"sue-icon-text-icon\" style=\"color:#5dbcd2;font-size:48px;width:48px;height:48px\"><i class=\"sui sui-info-circle\" style=\"font-size:48px;color:#5dbcd2\"><\/i><\/div><div class=\"sue-icon-text-content sue-content-wrap\" style=\"color:#000000\">\n<h3><span>Carbono<\/span><\/h3>\n<p>\u00c9 n\u00e3o-met\u00e1lico e tetravalente \u2013 disponibilizando quatro el\u00e9trons para formar liga\u00e7\u00f5es qu\u00edmicas covalentes.\u00a0O carbono \u00e9 um dos poucos elementos conhecidos desde a antiguidade.\u00a0O carbono \u00e9 o 15\u00ba elemento mais abundante na crosta terrestre e o quarto elemento mais abundante no universo em massa depois do hidrog\u00eanio, h\u00e9lio e oxig\u00eanio.<\/p>\n<\/div><div style=\"clear:both;height:0\"><\/div><\/div>\n<\/div><\/div>\n<div class=\"su-divider su-divider-style-dotted\" style=\"margin:25px 0;border-width:3px;border-color:#999999\"><\/div>\n<p><span><div  class=\"lgc-column lgc-grid-parent lgc-grid-50 lgc-tablet-grid-50 lgc-mobile-grid-100 lgc-equal-heights \"><div  class=\"inside-grid-column\">\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter size-medium wp-image-92279\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/09\/Boron-periodic-table-259x300.png\" alt=\"Boro na Tabela Peri\u00f3dica\" width=\"259\" height=\"300\" srcset=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/09\/Boron-periodic-table-259x300.png 259w, https:\/\/material-properties.org\/wp-content\/uploads\/2020\/09\/Boron-periodic-table.png 591w\" sizes=\"(max-width: 259px) 100vw, 259px\" \/><\/p>\n<p><span><\/span><\/p><\/div><\/div><\/span><\/p>\n<p><span><div  class=\"lgc-column lgc-grid-parent lgc-grid-50 lgc-tablet-grid-50 lgc-mobile-grid-100 lgc-equal-heights \"><div  class=\"inside-grid-column\">\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter size-medium wp-image-92294\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/09\/Carbon-periodic-table-300x267.png\" alt=\"Carbono na Tabela Peri\u00f3dica\" width=\"300\" height=\"267\" srcset=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/09\/Carbon-periodic-table-300x267.png 300w, https:\/\/material-properties.org\/wp-content\/uploads\/2020\/09\/Carbon-periodic-table.png 750w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/p>\n<p style=\"text-align: left;\"><span><\/span><\/p><\/div><\/div><\/span><\/p>\n<p style=\"text-align: center;\"><span>Fonte: www.luciteria.com<\/span><\/p>\n<p><span><div class=\"su-spacer\" style=\"height:20px\"><\/div><\/span><\/p>\n<p><span><div class=\"su-heading su-heading-style-modern-1-dark su-heading-align-left\" id=\"\" style=\"font-size:13px;margin-bottom:20px\"><div class=\"su-heading-inner\"><\/span><\/p>\n<h2><span>Boro e Carbono &#8211; Aplica\u00e7\u00f5es<\/span><\/h2>\n<\/div><\/div>\n<div  class=\"lgc-column lgc-grid-parent lgc-grid-50 lgc-tablet-grid-50 lgc-mobile-grid-100 lgc-equal-heights \"><div  class=\"inside-grid-column\">\n<div class=\"sue-shadow-wrap sue-content-wrap sue-shadow-inline-no\"><div class=\"sue-shadow sue-shadow-style-vertical\">\n<div class=\"sue-panel\" data-url=\"\" data-target=\"self\" style=\"background-color:#ffffff;color:#333333;border-radius:0px;-moz-border-radius:0px;-webkit-border-radius:0px;box-shadow:none;-moz-box-shadow:none;-webkit-box-shadow:none;border:1px solid #cccccc\"><div class=\"sue-panel-content sue-content-wrap\" style=\"padding:15px;text-align:left\">\n<h3><a href=\"https:\/\/material-properties.org\/boron-properties-applications-price-production\/\"><span>Boro<\/span><\/a><\/h3>\n<p><span>Quase todo o min\u00e9rio de boro extra\u00eddo da Terra \u00e9 destinado ao refinamento em \u00e1cido b\u00f3rico e tetraborato de s\u00f3dio pentahidratado.\u00a0Nos Estados Unidos, 70% do boro \u00e9 utilizado para a produ\u00e7\u00e3o de vidro e cer\u00e2mica.\u00a0O principal uso em escala industrial global de compostos de boro (cerca de 46% do uso final) \u00e9 na produ\u00e7\u00e3o de fibra de vidro para fibras de vidro isolantes e estruturais contendo boro, especialmente na \u00c1sia.\u00a0O boro \u00e9 adicionado aos a\u00e7os de boro no n\u00edvel de algumas partes por milh\u00e3o para aumentar a temperabilidade.\u00a0Porcentagens mais altas s\u00e3o adicionadas aos a\u00e7os usados \u200b\u200bna ind\u00fastria nuclear devido \u00e0 capacidade de absor\u00e7\u00e3o de n\u00eautrons do boro (por exemplo, pellets de carboneto de boro).\u00a0O boro tamb\u00e9m pode aumentar a dureza superficial de a\u00e7os e ligas por meio de boreta\u00e7\u00e3o.\u00a0P\u00f3s de carboneto de boro e nitreto de boro c\u00fabico s\u00e3o amplamente utilizados como abrasivos.<\/span><\/p>\n<\/div><\/div>\n<\/div><\/div>\n<\/div><\/div>\n<div  class=\"lgc-column lgc-grid-parent lgc-grid-50 lgc-tablet-grid-50 lgc-mobile-grid-100 lgc-equal-heights \"><div  class=\"inside-grid-column\">\n<div class=\"sue-shadow-wrap sue-content-wrap sue-shadow-inline-no\"><div class=\"sue-shadow sue-shadow-style-vertical\">\n<div class=\"sue-panel\" data-url=\"\" data-target=\"self\" style=\"background-color:#ffffff;color:#333333;border-radius:0px;-moz-border-radius:0px;-webkit-border-radius:0px;box-shadow:none;-moz-box-shadow:none;-webkit-box-shadow:none;border:1px solid #cccccc\"><div class=\"sue-panel-content sue-content-wrap\" style=\"padding:15px;text-align:left\">\n<h3><a href=\"https:\/\/material-properties.org\/carbon-properties-applications-price-production\/\"><span>Carbono<\/span><\/a><\/h3>\n<p><span>O principal uso econ\u00f4mico do carbono, al\u00e9m de alimentos e madeira, \u00e9 na forma de hidrocarbonetos, principalmente o g\u00e1s metano combust\u00edvel f\u00f3ssil e o petr\u00f3leo bruto (petr\u00f3leo).\u00a0Grafite e diamantes s\u00e3o dois importantes al\u00f3tropos de carbono que t\u00eam amplas aplica\u00e7\u00f5es.\u00a0Os usos do carbono e seus compostos s\u00e3o extremamente variados.\u00a0Pode formar ligas com ferro, sendo o mais comum o a\u00e7o carbono.\u00a0O carbono \u00e9 um elemento n\u00e3o met\u00e1lico, que \u00e9 um importante elemento de liga em todos os materiais \u00e0 base de metais ferrosos.\u00a0O carbono est\u00e1 sempre presente em ligas met\u00e1licas, ou seja, em todos os tipos de a\u00e7o inoxid\u00e1vel e ligas resistentes ao calor.\u00a0O carbono \u00e9 um austenitizador muito forte e aumenta a resist\u00eancia do a\u00e7o.\u00a0Na verdade, \u00e9 o principal elemento de endurecimento e \u00e9 essencial para a forma\u00e7\u00e3o de cementita, Fe3C, perlita, esferoidita e martensita ferro-carbono.\u00a0Adicionar uma pequena quantidade de carbono n\u00e3o met\u00e1lico ao ferro troca sua grande ductilidade pela maior resist\u00eancia.\u00a0O grafite \u00e9 combinado com argilas para formar o &#8216;chumbo&#8217; usado nos l\u00e1pis usados \u200b\u200bpara escrever e desenhar.\u00a0Tamb\u00e9m \u00e9 usado como lubrificante e pigmento, como material de moldagem na fabrica\u00e7\u00e3o de vidro, em eletrodos para baterias secas e em galvanoplastia e eletroforma\u00e7\u00e3o, em escovas para motores el\u00e9tricos e como moderador de n\u00eautrons em reatores nucleares.\u00a0O carv\u00e3o vegetal tem sido usado desde os primeiros tempos para uma grande variedade de prop\u00f3sitos, incluindo arte e medicina, mas, de longe, seu uso mais importante tem sido como combust\u00edvel metal\u00fargico.\u00a0As fibras de carbono s\u00e3o usadas onde o baixo peso, alta rigidez, alta condutividade ou onde a apar\u00eancia da fibra de carbono \u00e9 desejada.\u00a0O grafite \u00e9 combinado com argilas para formar o &#8216;chumbo&#8217; usado nos l\u00e1pis usados \u200b\u200bpara escrever e desenhar.\u00a0Tamb\u00e9m \u00e9 usado como lubrificante e pigmento, como material de moldagem na fabrica\u00e7\u00e3o de vidro, em eletrodos para baterias secas e em galvanoplastia e eletroforma\u00e7\u00e3o, em escovas para motores el\u00e9tricos e como moderador de n\u00eautrons em reatores nucleares.\u00a0O carv\u00e3o vegetal tem sido usado desde os primeiros tempos para uma grande variedade de prop\u00f3sitos, incluindo arte e medicina, mas, de longe, seu uso mais importante tem sido como combust\u00edvel metal\u00fargico.\u00a0As fibras de carbono s\u00e3o usadas onde o baixo peso, alta rigidez, alta condutividade ou onde a apar\u00eancia da fibra de carbono \u00e9 desejada.\u00a0O grafite \u00e9 combinado com argilas para formar o &#8216;chumbo&#8217; usado nos l\u00e1pis usados \u200b\u200bpara escrever e desenhar.\u00a0Tamb\u00e9m \u00e9 usado como lubrificante e pigmento, como material de moldagem na fabrica\u00e7\u00e3o de vidro, em eletrodos para baterias secas e em galvanoplastia e eletroforma\u00e7\u00e3o, em escovas para motores el\u00e9tricos e como moderador de n\u00eautrons em reatores nucleares.\u00a0O carv\u00e3o vegetal tem sido usado desde os primeiros tempos para uma grande variedade de prop\u00f3sitos, incluindo arte e medicina, mas, de longe, seu uso mais importante tem sido como combust\u00edvel metal\u00fargico.\u00a0As fibras de carbono s\u00e3o usadas onde o baixo peso, alta rigidez, alta condutividade ou onde a apar\u00eancia da fibra de carbono \u00e9 desejada.\u00a0em escovas para motores el\u00e9tricos e como moderador de n\u00eautrons em reatores nucleares.\u00a0O carv\u00e3o vegetal tem sido usado desde os primeiros tempos para uma grande variedade de prop\u00f3sitos, incluindo arte e medicina, mas, de longe, seu uso mais importante tem sido como combust\u00edvel metal\u00fargico.\u00a0As fibras de carbono s\u00e3o usadas onde o baixo peso, alta rigidez, alta condutividade ou onde a apar\u00eancia da fibra de carbono \u00e9 desejada.\u00a0em escovas para motores el\u00e9tricos e como moderador de n\u00eautrons em reatores nucleares.\u00a0O carv\u00e3o vegetal tem sido usado desde os primeiros tempos para uma grande variedade de prop\u00f3sitos, incluindo arte e medicina, mas, de longe, seu uso mais importante tem sido como combust\u00edvel metal\u00fargico.\u00a0As fibras de carbono s\u00e3o usadas onde o baixo peso, alta rigidez, alta condutividade ou onde a apar\u00eancia da fibra de carbono \u00e9 desejada.<\/span><\/p>\n<\/div><\/div>\n<\/div><\/div>\n<\/div><\/div>\n<div class=\"su-heading su-heading-style-modern-1-dark su-heading-align-left\" id=\"\" style=\"font-size:13px;margin-bottom:20px\"><div class=\"su-heading-inner\">\n<h2><span>Boro e Carbono &#8211; Compara\u00e7\u00e3o na Tabela<\/span><\/h2>\n<p><span><\/div><\/div><\/span><\/p>\n<p><span><div  class=\"lgc-column lgc-grid-parent lgc-grid-100 lgc-tablet-grid-100 lgc-mobile-grid-100 lgc-equal-heights \"><div  class=\"inside-grid-column\">\n<table class=\"a\">\n<tbody>\n<tr class=\"b\">\n<td style=\"text-align: center;\"><span>Elemento<\/span><\/td>\n<td style=\"text-align: center;\"><strong><span>Boro<\/span><\/strong><\/td>\n<td style=\"text-align: center;\"><strong><span>Carbono<\/span><\/strong><\/td>\n<\/tr>\n<tr class=\"c\">\n<td style=\"text-align: center;\"><span>Densidade<\/span><\/td>\n<td style=\"text-align: center;\"><strong><span>2,46 g\/cm<sup>3<\/sup><\/span><\/strong><\/td>\n<td style=\"text-align: center;\"><strong><span>2,26 g\/cm<sup>3<\/sup><\/span><\/strong><\/td>\n<\/tr>\n<tr class=\"c\">\n<td style=\"text-align: center;\"><span>Resist\u00eancia \u00e0 tra\u00e7\u00e3o<\/span><\/td>\n<td style=\"text-align: center;\"><strong><span>N\/D<\/span><\/strong><\/td>\n<td style=\"text-align: center;\"><strong><span>15 MPa (grafite);\u00a03500 MPa (fibra de carbono)<\/span><\/strong><\/td>\n<\/tr>\n<tr class=\"c\">\n<td style=\"text-align: center;\"><span>For\u00e7a de rendimento<\/span><\/td>\n<td style=\"text-align: center;\"><strong><span>N\/D<\/span><\/strong><\/td>\n<td style=\"text-align: center;\"><strong><span>N\/D<\/span><\/strong><\/td>\n<\/tr>\n<tr class=\"c\">\n<td style=\"text-align: center;\"><span>M\u00f3dulo de elasticidade de Young<\/span><\/td>\n<td style=\"text-align: center;\"><strong><span>N\/D<\/span><\/strong><\/td>\n<td style=\"text-align: center;\"><strong><span>4,1 GPa (grafite);\u00a0228 GPa (fibra de carbono)<\/span><\/strong><\/td>\n<\/tr>\n<tr class=\"c\">\n<td style=\"text-align: center;\"><span>Escala de Mohs<\/span><\/td>\n<td style=\"text-align: center;\"><strong><span>9,5<\/span><\/strong><\/td>\n<td style=\"text-align: center;\"><strong><span>0,8 (grafite)<\/span><\/strong><\/td>\n<\/tr>\n<tr class=\"c\">\n<td style=\"text-align: center;\"><span>Dureza Brinell<\/span><\/td>\n<td style=\"text-align: center;\"><strong><span>N\/D<\/span><\/strong><\/td>\n<td style=\"text-align: center;\"><strong><span>N\/D<\/span><\/strong><\/td>\n<\/tr>\n<tr class=\"c\">\n<td style=\"text-align: center;\"><span>Dureza Vickers<\/span><\/td>\n<td style=\"text-align: center;\"><strong><span>49.000 MPa<\/span><\/strong><\/td>\n<td style=\"text-align: center;\"><strong><span>N\/D<\/span><\/strong><\/td>\n<\/tr>\n<tr class=\"c\">\n<td style=\"text-align: center;\"><span>Ponto de fus\u00e3o<\/span><\/td>\n<td style=\"text-align: center;\"><strong><span>2079 \u00b0C<\/span><\/strong><\/td>\n<td style=\"text-align: center;\"><strong><span>4099 \u00b0C<\/span><\/strong><\/td>\n<\/tr>\n<tr class=\"c\">\n<td style=\"text-align: center;\"><span>Ponto de ebuli\u00e7\u00e3o<\/span><\/td>\n<td style=\"text-align: center;\"><strong><span>3927 \u00b0C<\/span><\/strong><\/td>\n<td style=\"text-align: center;\"><strong><span>4527 \u00b0C<\/span><\/strong><\/td>\n<\/tr>\n<tr class=\"c\">\n<td style=\"text-align: center;\"><span>Condutividade t\u00e9rmica<\/span><\/td>\n<td style=\"text-align: center;\"><strong><span>27 W\/mK<\/span><\/strong><\/td>\n<td style=\"text-align: center;\"><strong><span>129 W\/mK<\/span><\/strong><\/td>\n<\/tr>\n<tr class=\"c\">\n<td style=\"text-align: center;\"><span>Coeficiente de Expans\u00e3o T\u00e9rmica<\/span><\/td>\n<td style=\"text-align: center;\"><strong><span>5-7 \u00b5m\/mK<\/span><\/strong><\/td>\n<td style=\"text-align: center;\"><strong><span>0,8 \u00b5m\/mK<\/span><\/strong><\/td>\n<\/tr>\n<tr class=\"c\">\n<td style=\"text-align: center;\"><span>Calor espec\u00edfico<\/span><\/td>\n<td style=\"text-align: center;\"><strong><span style=\"text-align: start;\"><span>1,02 J\/gK<\/span><\/span><\/strong><\/td>\n<td style=\"text-align: center;\"><strong><span>0,71 J\/gK<\/span><\/strong><\/td>\n<\/tr>\n<tr class=\"c\">\n<td style=\"text-align: center;\"><span>Calor de fus\u00e3o<\/span><\/td>\n<td style=\"text-align: center;\"><strong><span style=\"text-align: start;\"><span>50,2 kJ\/mol<\/span><\/span><\/strong><\/td>\n<td style=\"text-align: center;\"><strong><span>N\/D<\/span><\/strong><\/td>\n<\/tr>\n<tr class=\"c\">\n<td style=\"text-align: center;\"><span>Calor da vaporiza\u00e7\u00e3o<\/span><\/td>\n<td style=\"text-align: center;\"><strong><span style=\"text-align: start;\"><span>508 kJ\/mol<\/span><\/span><\/strong><\/td>\n<td style=\"text-align: center;\"><strong><span>355,8 kJ\/mol<\/span><\/strong><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><span><\/span><\/p><\/div><\/div><\/span><\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Este artigo cont\u00e9m uma compara\u00e7\u00e3o das principais propriedades t\u00e9rmicas e at\u00f4micas do boro e do carbono, dois elementos qu\u00edmicos compar\u00e1veis \u200b\u200bda tabela peri\u00f3dica.\u00a0Ele tamb\u00e9m cont\u00e9m descri\u00e7\u00f5es b\u00e1sicas e aplica\u00e7\u00f5es de ambos os elementos.\u00a0Boro vs. Carbono. Fonte: www.luciteria.com &nbsp;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.2 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Boro e Carbono - Compara\u00e7\u00e3o - Propriedades - Material Properties<\/title>\n<meta name=\"description\" content=\"Este artigo cont\u00e9m uma compara\u00e7\u00e3o das principais propriedades t\u00e9rmicas e at\u00f4micas do boro e do carbono, dois elementos qu\u00edmicos compar\u00e1veis da tabela peri\u00f3dica. Ele tamb\u00e9m cont\u00e9m descri\u00e7\u00f5es b\u00e1sicas e aplica\u00e7\u00f5es de ambos os elementos. 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