{"id":117310,"date":"2022-09-16T07:35:17","date_gmt":"2022-09-16T06:35:17","guid":{"rendered":"https:\/\/material-properties.org\/tungstenio-e-renio-comparacao-propriedades\/"},"modified":"2022-10-18T10:04:29","modified_gmt":"2022-10-18T09:04:29","slug":"tungstenio-e-renio-comparacao-propriedades","status":"publish","type":"post","link":"https:\/\/material-properties.org\/pt-br\/tungstenio-e-renio-comparacao-propriedades\/","title":{"rendered":"Tungst\u00eanio e R\u00eanio – Compara\u00e7\u00e3o – Propriedades"},"content":{"rendered":"

Este artigo cont\u00e9m uma compara\u00e7\u00e3o das principais propriedades t\u00e9rmicas e at\u00f4micas do tungst\u00eanio e do r\u00eanio, 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.\u00a0Tungst\u00eanio vs. R\u00eanio.<\/span><\/em><\/p>\n

\"tungst\u00eanio<\/p>\n

\n
<\/span>Compare Tungst\u00eanio com outro elemento<\/div>
\n
<\/div>\n

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

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

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

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

\"Molibd\u00eanio<\/a><\/p>\n

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

\"R\u00eanio<\/a><\/p>\n

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

\"Iridium<\/a><\/p>\n<\/div><\/div>\n<\/div><\/div>\n

\n
<\/span>Comparar R\u00eanio com outro elemento<\/div>
\n
<\/div>\n

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

\"Tungst\u00eanio<\/a><\/p>\n<\/div><\/div>\n<\/div><\/div>\n

<\/div>\n
\n

Tugst\u00eanio e R\u00eanio – Sobre Elementos<\/span><\/h2>\n<\/div><\/div>\n
\n
<\/i><\/div>
\n

Tungst\u00eanio<\/span><\/h3>\n

O tungst\u00eanio \u00e9 um metal raro encontrado naturalmente na Terra quase exclusivamente em compostos qu\u00edmicos.\u00a0O tungst\u00eanio \u00e9 um material intrinsecamente fr\u00e1gil e duro, dificultando o trabalho.<\/span><\/p>\n<\/div>

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

R\u00eanio<\/span><\/h3>\n

O r\u00eanio \u00e9 um metal de transi\u00e7\u00e3o de terceira linha, branco-prateado, pesado, no grupo 7 da tabela peri\u00f3dica.<\/span><\/p>\n<\/div>

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

\n

\"Tungst\u00eanio<\/p>\n

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

\n

\"R\u00eanio<\/p>\n

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

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

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

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

Tungst\u00eanio e R\u00eanio – Aplica\u00e7\u00f5es<\/span><\/h2>\n<\/div><\/div>\n
\n
\n
\n

Tungst\u00eanio<\/span><\/a><\/h3>\n

O tungst\u00eanio \u00e9 um metal amplamente utilizado.\u00a0Aproximadamente metade do tungst\u00eanio \u00e9 consumido para a produ\u00e7\u00e3o de materiais duros \u2013 nomeadamente carboneto de tungst\u00eanio \u2013 sendo o restante uso principal em ligas e a\u00e7os.\u00a0A minera\u00e7\u00e3o e o processamento mineral exigem m\u00e1quinas e componentes resistentes ao desgaste, porque as energias e as massas dos corpos que interagem s\u00e3o significativas.\u00a0Para isso, devem ser usados \u200b\u200bmateriais com a maior resist\u00eancia ao desgaste.\u00a0Por exemplo, o carboneto de tungst\u00eanio \u00e9 usado extensivamente na minera\u00e7\u00e3o em brocas de perfura\u00e7\u00e3o de rocha de martelo superior, martelos de fundo de po\u00e7o, cortadores de rolos, talhadeiras de arado de parede longa, picaretas de cisalhamento de parede longa, alargadores de perfura\u00e7\u00e3o e m\u00e1quinas de perfura\u00e7\u00e3o de t\u00faneis.\u00a0Os 40% restantes s\u00e3o geralmente usados \u200b\u200bpara fazer v\u00e1rias ligas e a\u00e7os especiais, eletrodos, filamentos, fios, bem como diversos componentes para aplica\u00e7\u00f5es el\u00e9tricas, eletr\u00f4nicas, aquecimento, ilumina\u00e7\u00e3o e soldagem.<\/span><\/p>\n<\/div><\/div>\n<\/div><\/div>\n<\/div><\/div>\n

\n
\n
\n

R\u00eanio<\/span><\/a><\/h3>\n

Mais de 80% do uso global de r\u00eanio est\u00e1 em superligas de alta temperatura para aplica\u00e7\u00f5es de aeronaves, como l\u00e2minas de turbinas e pe\u00e7as de motores.\u00a0Essas ligas cont\u00eam at\u00e9 6% de r\u00eanio, tornando a constru\u00e7\u00e3o de motores a jato o maior uso \u00fanico para o elemento.\u00a0O r\u00eanio \u00e9 adicionado \u00e0s superligas \u00e0 base de n\u00edquel para melhorar a resist\u00eancia \u00e0 flu\u00eancia das ligas.\u00a0A demanda restante \u00e9 principalmente das ind\u00fastrias de refino petroqu\u00edmico.\u00a0Catalisadores de platina-r\u00eanio que s\u00e3o usados \u200b\u200bprincipalmente em gasolina de alta octanagem sem chumbo s\u00e3o outra aplica\u00e7\u00e3o importante de r\u00eanio.<\/span><\/p>\n<\/div><\/div>\n<\/div><\/div>\n<\/div><\/div>\n

\n

Tungst\u00eanio e R\u00eanio – 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>\nTungst\u00eanio<\/span><\/b><\/td>\nR\u00eanio<\/span><\/b><\/td>\n<\/tr>\n
Densidade<\/span><\/td>\n19,25 g\/cm3<\/sup><\/span><\/strong><\/td>\n21,02 g\/cm3<\/sup><\/span><\/strong><\/td>\n<\/tr>\n
Resist\u00eancia \u00e0 tra\u00e7\u00e3o<\/span><\/td>\n980 MPa<\/span><\/strong><\/td>\n1070 MPa<\/span><\/strong><\/td>\n<\/tr>\n
For\u00e7a de rendimento<\/span><\/td>\n750 MPa<\/span><\/strong><\/td>\n290 MPa<\/span><\/strong><\/td>\n<\/tr>\n
M\u00f3dulo de elasticidade de Young<\/span><\/td>\n411 GPa<\/span><\/strong><\/td>\n463 GPa<\/span><\/strong><\/td>\n<\/tr>\n
Escala de Mohs<\/span><\/td>\n7,5<\/span><\/strong><\/td>\n7<\/span><\/strong><\/td>\n<\/tr>\n
Dureza Brinell<\/span><\/td>\n3000 MPa<\/span><\/strong><\/td>\n1400 MPa<\/span><\/strong><\/td>\n<\/tr>\n
Dureza Vickers<\/span><\/td>\n3500 MPa<\/span><\/strong><\/td>\n2500 MPa<\/span><\/strong><\/td>\n<\/tr>\n
Ponto de fus\u00e3o<\/span><\/td>\n3410 \u00b0C<\/span><\/strong><\/td>\n3180 \u00b0C<\/span><\/strong><\/td>\n<\/tr>\n
Ponto de ebuli\u00e7\u00e3o<\/span><\/td>\n59300 \u00b0C<\/span><\/strong><\/td>\n5600 \u00b0C<\/span><\/strong><\/td>\n<\/tr>\n
Condutividade t\u00e9rmica<\/span><\/td>\n170 W\/mK<\/span><\/strong><\/td>\n48 W\/mK<\/span><\/strong><\/td>\n<\/tr>\n
Coeficiente de Expans\u00e3o T\u00e9rmica<\/span><\/td>\n4,5 \u00b5m\/mK<\/span><\/strong><\/td>\n6,2 \u00b5m\/mK<\/span><\/strong><\/td>\n<\/tr>\n
Calor espec\u00edfico<\/span><\/td>\n0,13 J\/gK<\/span><\/span><\/strong><\/td>\n0,13 J\/gK<\/span><\/strong><\/td>\n<\/tr>\n
Calor de fus\u00e3o<\/span><\/td>\n35,4 kJ\/mol<\/span><\/strong><\/td>\n33,2 kJ\/mol<\/span><\/strong><\/td>\n<\/tr>\n
Calor da vaporiza\u00e7\u00e3o<\/span><\/td>\n824 kJ\/mol<\/span><\/span><\/strong><\/td>\n715 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 tungst\u00eanio e do r\u00eanio, 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.\u00a0Tungst\u00eanio vs. R\u00eanio. 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":"\nTungst\u00eanio e R\u00eanio - 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 tungst\u00eanio e do r\u00eanio, 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. Tungst\u00eanio vs R\u00eanio.\" \/>\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\/tungstenio-e-renio-comparacao-propriedades\/\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Tungst\u00eanio e R\u00eanio - 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 tungst\u00eanio e do r\u00eanio, 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. Tungst\u00eanio vs R\u00eanio.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/material-properties.org\/pt-br\/tungstenio-e-renio-comparacao-propriedades\/\" \/>\n<meta property=\"og:site_name\" content=\"Material Properties\" \/>\n<meta property=\"article:published_time\" content=\"2022-09-16T06:35:17+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2022-10-18T09:04:29+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/material-properties.org\/wp-content\/uploads\/2021\/01\/tungsten-and-rhenium-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\/tungstenio-e-renio-comparacao-propriedades\/\",\"url\":\"https:\/\/material-properties.org\/pt-br\/tungstenio-e-renio-comparacao-propriedades\/\",\"name\":\"Tungst\u00eanio e R\u00eanio - Compara\u00e7\u00e3o - Propriedades - Material Properties\",\"isPartOf\":{\"@id\":\"https:\/\/material-properties.org\/pt-br\/#website\"},\"datePublished\":\"2022-09-16T06:35:17+00:00\",\"dateModified\":\"2022-10-18T09:04:29+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 do tungst\u00eanio e do r\u00eanio, dois elementos qu\u00edmicos compar\u00e1veis da tabela peri\u00f3dica. 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