{"id":117328,"date":"2022-09-16T09:51:28","date_gmt":"2022-09-16T08:51:28","guid":{"rendered":"https:\/\/material-properties.org\/niobio-e-tantalo-comparacao-propriedades\/"},"modified":"2022-10-19T10:24:14","modified_gmt":"2022-10-19T09:24:14","slug":"niobio-e-tantalo-comparacao-propriedades","status":"publish","type":"post","link":"https:\/\/material-properties.org\/pt-br\/niobio-e-tantalo-comparacao-propriedades\/","title":{"rendered":"Ni\u00f3bio 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 do ni\u00f3bio e do 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.\u00a0Ni\u00f3bio vs. T\u00e2ntalo.<\/span><\/em><\/p>\n

\"ni\u00f3bio<\/p>\n

\n
<\/span>Compare Ni\u00f3bio com outro elemento<\/div>
\n
<\/div>\n

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

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

\"Estanho<\/a><\/p>\n

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

\n
<\/span>Compare 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

Ni\u00f3bio e T\u00e2ntalo – Sobre Elementos<\/span><\/h2>\n<\/div><\/div>\n
\n
<\/i><\/div>
\n

Ni\u00f3bio<\/span><\/h3>\n

O ni\u00f3bio \u00e9 um metal de transi\u00e7\u00e3o macio, cinza e d\u00factil, frequentemente encontrado nos minerais pirocloro (a principal fonte comercial de ni\u00f3bio) e columbita.<\/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<\/div>

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

\n

\"Ni\u00f3bio<\/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

Ni\u00f3bio e T\u00e2ntalo – Aplica\u00e7\u00f5es<\/span><\/h2>\n<\/div><\/div>\n
\n
\n
\n

Ni\u00f3bio<\/span><\/a><\/h3>\n

O consumo de ni\u00f3bio \u00e9 dominado por seu uso como aditivo para a\u00e7os de baixa liga de alta resist\u00eancia e a\u00e7os inoxid\u00e1veis \u200b\u200bpara oleodutos e gasodutos, carrocerias de carros e caminh\u00f5es, requisitos arquitet\u00f4nicos, a\u00e7os ferramenta, cascos de navios, ferrovias.\u00a0No entanto, existem v\u00e1rias outras aplica\u00e7\u00f5es para o metal ni\u00f3bio e seus compostos.\u00a0Embora o ni\u00f3bio tenha muitas aplica\u00e7\u00f5es, a maioria \u00e9 usada na produ\u00e7\u00e3o de a\u00e7o estrutural de alta qualidade.\u00a0A segunda maior aplica\u00e7\u00e3o do ni\u00f3bio \u00e9 em superligas \u00e0 base de n\u00edquel.\u00a0As ligas de ni\u00f3bio-estanho s\u00e3o usadas como \u00edm\u00e3s supercondutores.<\/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

Ni\u00f3bio 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>\nNi\u00f3bio<\/span><\/b><\/td>\nT\u00e2ntalo<\/span><\/b><\/td>\n<\/tr>\n
Densidade<\/span><\/td>\n8,57 g\/cm3<\/sup><\/span><\/strong><\/td>\n16,65 g\/cm3<\/sup><\/span><\/strong><\/td>\n<\/tr>\n
Resist\u00eancia \u00e0 tra\u00e7\u00e3o<\/span><\/td>\n275 MPa<\/span><\/strong><\/td>\n760 MPa<\/span><\/strong><\/td>\n<\/tr>\n
For\u00e7a de rendimento<\/span><\/td>\n70 MPa<\/span><\/strong><\/td>\n705 MPa<\/span><\/strong><\/td>\n<\/tr>\n
M\u00f3dulo de elasticidade de Young<\/span><\/td>\n105 GPa<\/span><\/strong><\/td>\n186 GPa<\/span><\/strong><\/td>\n<\/tr>\n
Escala de Mohs<\/span><\/td>\n6<\/span><\/strong><\/td>\n6,5<\/span><\/strong><\/td>\n<\/tr>\n
Dureza Brinell<\/span><\/td>\n740 MPa<\/span><\/strong><\/td>\n800 MPa<\/span><\/strong><\/td>\n<\/tr>\n
Dureza Vickers<\/span><\/td>\n1300 MPa<\/span><\/strong><\/td>\n870 MPa<\/span><\/strong><\/td>\n<\/tr>\n
Ponto de fus\u00e3o<\/span><\/td>\n2477 \u00b0C<\/span><\/strong><\/td>\n2996 \u00b0C<\/span><\/strong><\/td>\n<\/tr>\n
Ponto de ebuli\u00e7\u00e3o<\/span><\/td>\n4744 \u00b0C<\/span><\/strong><\/td>\n5425 \u00b0C<\/span><\/strong><\/td>\n<\/tr>\n
Condutividade t\u00e9rmica<\/span><\/td>\n53,7 W\/mK<\/span><\/strong><\/td>\n57 W\/mK<\/span><\/strong><\/td>\n<\/tr>\n
Coeficiente de Expans\u00e3o T\u00e9rmica<\/span><\/td>\n7,3 \u00b5m\/mK<\/span><\/strong><\/td>\n6,3 \u00b5m\/mK<\/span><\/strong><\/td>\n<\/tr>\n
Calor espec\u00edfico<\/span><\/td>\n0,26 J\/gK<\/span><\/span><\/strong><\/td>\n0,14 J\/gK<\/span><\/strong><\/td>\n<\/tr>\n
Calor de fus\u00e3o<\/span><\/td>\n26,4 kJ\/mol<\/span><\/strong><\/td>\n31,6 kJ\/mol<\/span><\/strong><\/td>\n<\/tr>\n
Calor da vaporiza\u00e7\u00e3o<\/span><\/td>\n682 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 do ni\u00f3bio e do 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.\u00a0Ni\u00f3bio 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":"\nNi\u00f3bio 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 do ni\u00f3bio e do 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. Ni\u00f3bio 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\/niobio-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=\"Ni\u00f3bio 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 do ni\u00f3bio e do 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. 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