{"id":117307,"date":"2022-09-16T07:16:45","date_gmt":"2022-09-16T06:16:45","guid":{"rendered":"https:\/\/material-properties.org\/hafnio-e-tantalo-comparacao-propriedades\/"},"modified":"2022-10-18T09:51:03","modified_gmt":"2022-10-18T08:51:03","slug":"hafnio-e-tantalo-comparacao-propriedades","status":"publish","type":"post","link":"https:\/\/material-properties.org\/pt-br\/hafnio-e-tantalo-comparacao-propriedades\/","title":{"rendered":"H\u00e1fnio e T\u00e2ntalo – Compara\u00e7\u00e3o – Propriedades"},"content":{"rendered":"

Este artigo cont\u00e9m uma compara\u00e7\u00e3o das principais propriedades t\u00e9rmicas e at\u00f4micas de h\u00e1fnio e t\u00e2ntalo, 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.\u00a0H\u00e1fnio vs. T\u00e2ntalo.<\/span><\/em><\/p>\n

\"h\u00e1fnio<\/p>\n

\n
<\/span>Comparar H\u00e1fnio com outro elemento<\/div>
\n
<\/div>\n

\"T\u00e2ntalo<\/a><\/p>\n

\"Zirc\u00f4nio<\/a><\/p>\n<\/div><\/div>\n<\/div><\/div>\n

\n
<\/span>Comparar T\u00e2ntalo com outro elemento<\/div>
\n
<\/div>\n

\"Tit\u00e2nio<\/a><\/p>\n

\"Ni\u00f3bio<\/a><\/p>\n

\"Eur\u00f3pio<\/a><\/p>\n

\"H\u00e1fnio<\/a><\/p>\n<\/div><\/div>\n<\/div><\/div>\n

<\/div>\n
\n

H\u00e1fnio e T\u00e2ntalo – Sobre Elementos<\/span><\/h2>\n<\/div><\/div>\n
\n
<\/i><\/div>
\n

H\u00e1fnio<\/span><\/h3>\n

O h\u00e1fnio \u00e9 um metal de transi\u00e7\u00e3o tetravalente brilhante, cinza prateado, o h\u00e1fnio se assemelha quimicamente ao zirc\u00f4nio e \u00e9 encontrado em muitos minerais de zirc\u00f4nio.\u00a0A grande se\u00e7\u00e3o transversal de captura de n\u00eautrons do h\u00e1fnio o torna um bom material para absor\u00e7\u00e3o de n\u00eautrons em hastes de controle em usinas nucleares, mas ao mesmo tempo exige que ele seja removido das ligas de zirc\u00f4nio resistentes \u00e0 corros\u00e3o transparentes a n\u00eautrons usadas em reatores nucleares.<\/span><\/p>\n<\/div>

<\/div><\/div>\n<\/div><\/div>\n
\n
<\/i><\/div>
\n

T\u00e2ntalo<\/span><\/h3>\n

O t\u00e2ntalo \u00e9 um metal de transi\u00e7\u00e3o raro, duro, cinza-azulado e brilhante, altamente resistente \u00e0 corros\u00e3o.<\/span><\/p>\n

<\/span><\/p><\/div>

<\/div><\/div>
\n<\/span><\/div><\/div><\/span><\/p>\n

<\/div><\/span><\/p>\n

\n

\"H\u00e1fnio<\/p>\n

<\/span><\/p><\/div><\/div><\/span><\/p>\n

\n

\"T\u00e2ntalo<\/p>\n

<\/span><\/p><\/div><\/div><\/span><\/p>\n

Fonte: www.luciteria.com<\/span><\/p>\n

<\/div><\/span><\/p>\n

<\/span><\/p>\n

H\u00e1fnio e T\u00e2ntalo – Aplica\u00e7\u00f5es<\/span><\/h2>\n<\/div><\/div>\n
\n
\n
\n

H\u00e1fnio<\/span><\/a><\/h3>\n

O h\u00e1fnio tem boas propriedades de absor\u00e7\u00e3o de n\u00eautrons e, portanto, \u00e9 usado em hastes de controle em reatores nucleares, mas ao mesmo tempo exige que seja removido das ligas de zirc\u00f4nio resistentes \u00e0 corros\u00e3o transparentes a n\u00eautrons usadas em reatores nucleares.\u00a0Enquanto o nitreto de h\u00e1fnio \u00e9 o mais refrat\u00e1rio de todos os nitretos met\u00e1licos, o carboneto de h\u00e1fnio \u00e9 o mais refrat\u00e1rio de todos os materiais bin\u00e1rios.\u00a0Com um ponto de fus\u00e3o de cerca de 3900 \u00b0C, \u00e9 um dos compostos bin\u00e1rios mais refrat\u00e1rios conhecidos.\u00a0H\u00e1fnio foi ligado com sucesso com v\u00e1rios metais, incluindo ferro, tit\u00e2nio e ni\u00f3bio.<\/span><\/p>\n<\/div><\/div>\n<\/div><\/div>\n<\/div><\/div>\n

\n
\n
\n

T\u00e2ntalo<\/span><\/a><\/h3>\n

O consumo de t\u00e2ntalo \u00e9 dominado por capacitores para equipamentos eletr\u00f4nicos.\u00a0Capacitores s\u00e3o componentes el\u00e9tricos que armazenam energia eletrostaticamente em um campo el\u00e9trico e s\u00e3o usados \u200b\u200bem uma ampla variedade de produtos el\u00e9tricos e eletr\u00f4nicos.\u00a0Os principais usos finais dos capacitores de t\u00e2ntalo incluem telefones port\u00e1teis, pagers, computadores pessoais e eletr\u00f4nicos automotivos.\u00a0Ligado com outros metais, o t\u00e2ntalo tamb\u00e9m \u00e9 usado na fabrica\u00e7\u00e3o de ferramentas de metal duro para equipamentos metal\u00fargicos e na produ\u00e7\u00e3o de superligas para componentes de motores a jato.\u00a0Compostos de t\u00e2ntalo, como o pent\u00f3xido de t\u00e2ntalo, s\u00e3o usados \u200b\u200bpara fazer capacitores e vidros com alto \u00edndice de refra\u00e7\u00e3o para uso em lentes de c\u00e2meras.<\/span><\/p>\n<\/div><\/div>\n<\/div><\/div>\n<\/div><\/div>\n

\n

H\u00e1fnio e T\u00e2ntalo – Compara\u00e7\u00e3o na Tabela<\/span><\/h2>\n

<\/div><\/div><\/span><\/p>\n

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Elemento<\/span><\/td>\nH\u00e1fnio<\/span><\/b><\/td>\nT\u00e2ntalo<\/span><\/b><\/td>\n<\/tr>\n
Densidade<\/span><\/td>\n13,31 g\/cm3<\/span><\/strong><\/td>\n16,65 g\/cm3<\/span><\/strong><\/td>\n<\/tr>\n
Resist\u00eancia \u00e0 tra\u00e7\u00e3o<\/span><\/td>\n480 MPa<\/span><\/strong><\/td>\n760 MPa<\/span><\/strong><\/td>\n<\/tr>\n
For\u00e7a de rendimento<\/span><\/td>\n125 MPa<\/span><\/strong><\/td>\n705 MPa<\/span><\/strong><\/td>\n<\/tr>\n
M\u00f3dulo de elasticidade de Young<\/span><\/td>\n78 GPa<\/span><\/strong><\/td>\n186 GPa<\/span><\/strong><\/td>\n<\/tr>\n
Escala de Mohs<\/span><\/td>\n5,5<\/span><\/strong><\/td>\n6,5<\/span><\/strong><\/td>\n<\/tr>\n
Dureza Brinell<\/span><\/td>\n1700 MPa<\/span><\/strong><\/td>\n800 MPa<\/span><\/strong><\/td>\n<\/tr>\n
Dureza Vickers<\/span><\/td>\n1700 MPa<\/span><\/strong><\/td>\n870 MPa<\/span><\/strong><\/td>\n<\/tr>\n
Ponto de fus\u00e3o<\/span><\/td>\n2227\u00b0C<\/span><\/strong><\/td>\n2996\u00b0C<\/span><\/strong><\/td>\n<\/tr>\n
Ponto de ebuli\u00e7\u00e3o<\/span><\/td>\n4600\u00b0C<\/span><\/strong><\/td>\n5425\u00b0C<\/span><\/strong><\/td>\n<\/tr>\n
Condutividade t\u00e9rmica<\/span><\/td>\n23 W\/mK<\/span><\/strong><\/td>\n57 W\/mK<\/span><\/strong><\/td>\n<\/tr>\n
Coeficiente de Expans\u00e3o T\u00e9rmica<\/span><\/td>\n5,9 \u00b5m\/mK<\/span><\/strong><\/td>\n6,3 \u00b5m\/mK<\/span><\/strong><\/td>\n<\/tr>\n
Calor espec\u00edfico<\/span><\/td>\n0,14 J\/gK<\/span><\/span><\/strong><\/td>\n0,14 J\/gK<\/span><\/strong><\/td>\n<\/tr>\n
Calor de fus\u00e3o<\/span><\/td>\n24,06 kJ\/mol<\/span><\/strong><\/td>\n31,6 kJ\/mol<\/span><\/strong><\/td>\n<\/tr>\n
Calor da vaporiza\u00e7\u00e3o<\/span><\/td>\n575 kJ\/mol<\/span><\/span><\/strong><\/td>\n743 kJ\/mol<\/span><\/strong><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

<\/span><\/p><\/div><\/div><\/span><\/p>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

Este artigo cont\u00e9m uma compara\u00e7\u00e3o das principais propriedades t\u00e9rmicas e at\u00f4micas de h\u00e1fnio e t\u00e2ntalo, 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.\u00a0H\u00e1fnio vs. T\u00e2ntalo. Fonte: www.luciteria.com  <\/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":"\nH\u00e1fnio e T\u00e2ntalo - 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 de h\u00e1fnio e t\u00e2ntalo, 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. H\u00e1fnio vs T\u00e2ntalo.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/material-properties.org\/pt-br\/hafnio-e-tantalo-comparacao-propriedades\/\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"H\u00e1fnio e T\u00e2ntalo - Compara\u00e7\u00e3o - Propriedades - Material Properties\" \/>\n<meta property=\"og:description\" content=\"Este artigo cont\u00e9m uma compara\u00e7\u00e3o das principais propriedades t\u00e9rmicas e at\u00f4micas de h\u00e1fnio e t\u00e2ntalo, 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. H\u00e1fnio vs T\u00e2ntalo.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/material-properties.org\/pt-br\/hafnio-e-tantalo-comparacao-propriedades\/\" \/>\n<meta property=\"og:site_name\" content=\"Material Properties\" \/>\n<meta property=\"article:published_time\" content=\"2022-09-16T06:16:45+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2022-10-18T08:51:03+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/material-properties.org\/wp-content\/uploads\/2021\/01\/hafnium-and-tantalum-comparison.png\" \/>\n<meta name=\"author\" content=\"Nick Connor\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Escrito por\" \/>\n\t<meta name=\"twitter:data1\" content=\"Nick Connor\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. tempo de leitura\" \/>\n\t<meta name=\"twitter:data2\" content=\"4 minutos\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/material-properties.org\/pt-br\/hafnio-e-tantalo-comparacao-propriedades\/\",\"url\":\"https:\/\/material-properties.org\/pt-br\/hafnio-e-tantalo-comparacao-propriedades\/\",\"name\":\"H\u00e1fnio e T\u00e2ntalo - Compara\u00e7\u00e3o - Propriedades - Material Properties\",\"isPartOf\":{\"@id\":\"https:\/\/material-properties.org\/pt-br\/#website\"},\"datePublished\":\"2022-09-16T06:16:45+00:00\",\"dateModified\":\"2022-10-18T08:51:03+00:00\",\"author\":{\"@id\":\"https:\/\/material-properties.org\/pt-br\/#\/schema\/person\/e8c544db9afedaec8574d6464f9398bb\"},\"description\":\"Este artigo cont\u00e9m uma compara\u00e7\u00e3o das principais propriedades t\u00e9rmicas e at\u00f4micas de h\u00e1fnio e t\u00e2ntalo, dois elementos qu\u00edmicos compar\u00e1veis da tabela peri\u00f3dica. 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