{"id":117272,"date":"2022-09-12T02:17:33","date_gmt":"2022-09-12T01:17:33","guid":{"rendered":"https:\/\/material-properties.org\/liga-mo-25-re-tabela-de-materiais-aplicacoes-preco\/"},"modified":"2022-10-18T06:56:32","modified_gmt":"2022-10-18T05:56:32","slug":"liga-mo-25-re-tabela-de-materiais-aplicacoes-preco","status":"publish","type":"post","link":"https:\/\/material-properties.org\/pt-br\/liga-mo-25-re-tabela-de-materiais-aplicacoes-preco\/","title":{"rendered":"Liga Mo-25 Re &#8211; Tabela de Materiais &#8211; Aplica\u00e7\u00f5es &#8211; Pre\u00e7o"},"content":{"rendered":"<h2>Sobre a Liga Mo-25 Re<\/h2>\n<p>O molibd\u00eanio e o r\u00eanio s\u00e3o ambos metais refrat\u00e1rios.\u00a0Esses metais s\u00e3o bem conhecidos por sua extraordin\u00e1ria resist\u00eancia ao calor e ao desgaste.\u00a0O principal requisito para suportar altas temperaturas \u00e9 um alto ponto de fus\u00e3o e propriedades mec\u00e2nicas est\u00e1veis \u200b\u200b(por exemplo, alta dureza) mesmo em altas temperaturas.\u00a0Esses metais s\u00e3o geralmente combinados para obter as propriedades de fabrica\u00e7\u00e3o, t\u00e9rmicas e mec\u00e2nicas desejadas.\u00a0As ligas de molibd\u00eanio-r\u00eanio apresentam boa ductilidade em baixas temperaturas.\u00a0A liga Mo-35Re tamb\u00e9m tem uma baixa temperatura de transi\u00e7\u00e3o d\u00factil para fr\u00e1gil na condi\u00e7\u00e3o de fundido.\u00a0A liga \u00e9 extremamente dif\u00edcil de fraturar ao martelar o material fundido em temperaturas abaixo de -196 \u00b0C. <div class=\"su-divider su-divider-style-dotted\" style=\"margin:25px 0;border-width:3px;border-color:#999999\"><\/div><a href=\"https:\/\/material-properties.org\/wp-content\/uploads\/2021\/03\/mo-25-re-alloy-properties-density-strength-price.png\"><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-108456\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2021\/03\/mo-25-re-alloy-properties-density-strength-price.png\" alt=\"mo 25 re liga propriedades densidade for\u00e7a pre\u00e7o\" width=\"500\" height=\"500\" srcset=\"https:\/\/material-properties.org\/wp-content\/uploads\/2021\/03\/mo-25-re-alloy-properties-density-strength-price.png 1000w, https:\/\/material-properties.org\/wp-content\/uploads\/2021\/03\/mo-25-re-alloy-properties-density-strength-price-300x300.png 300w, https:\/\/material-properties.org\/wp-content\/uploads\/2021\/03\/mo-25-re-alloy-properties-density-strength-price-150x150.png 150w, https:\/\/material-properties.org\/wp-content\/uploads\/2021\/03\/mo-25-re-alloy-properties-density-strength-price-768x768.png 768w\" sizes=\"(max-width: 500px) 100vw, 500px\" \/><\/a><div class=\"su-divider su-divider-style-dotted\" style=\"margin:25px 0;border-width:3px;border-color:#999999\"><\/div>\n<h3 style=\"text-align: center;\">Resumo<\/h3>\n<table class=\"a\">\n<tbody>\n<tr class=\"b\">\n<td style=\"text-align: center;\">Nome<\/td>\n<td style=\"text-align: center;\"><strong>Liga Mo-25 Re<\/strong><\/td>\n<\/tr>\n<tr class=\"c\">\n<td style=\"text-align: center;\">Fase em STP<\/td>\n<td style=\"text-align: center;\"><strong>s\u00f3lido<\/strong><\/td>\n<\/tr>\n<tr class=\"c\">\n<td style=\"text-align: center;\">Densidade<\/td>\n<td style=\"text-align: center;\"><strong>11200 kg\/m<sup>3<\/sup><\/strong><\/td>\n<\/tr>\n<tr class=\"c\">\n<td style=\"text-align: center;\">Resist\u00eancia \u00e0 tra\u00e7\u00e3o<\/td>\n<td style=\"text-align: center;\"><strong>1100 MPa<\/strong><\/td>\n<\/tr>\n<tr class=\"c\">\n<td style=\"text-align: center;\">For\u00e7a de rendimento<\/td>\n<td style=\"text-align: center;\"><strong>N\/D<\/strong><\/td>\n<\/tr>\n<tr class=\"c\">\n<td style=\"text-align: center;\">M\u00f3dulo de elasticidade de Young<\/td>\n<td style=\"text-align: center;\"><strong>360 GPa<\/strong><\/td>\n<\/tr>\n<tr class=\"c\">\n<td style=\"text-align: center;\">Dureza Brinell<\/td>\n<td style=\"text-align: center;\"><strong>350 BHN<\/strong><\/td>\n<\/tr>\n<tr class=\"c\">\n<td style=\"text-align: center;\">Ponto de fus\u00e3o<\/td>\n<td style=\"text-align: center;\"><strong>2527 \u00b0C<\/strong><\/td>\n<\/tr>\n<tr class=\"c\">\n<td style=\"text-align: center;\">Condutividade t\u00e9rmica<\/td>\n<td style=\"text-align: center;\"><strong>70 W\/mK<\/strong><\/td>\n<\/tr>\n<tr class=\"c\">\n<td style=\"text-align: center;\">Capacidade de calor<\/td>\n<td style=\"text-align: center;\"><strong><span style=\"text-align: start;\">220 J\/gK<\/span><\/strong><\/td>\n<\/tr>\n<tr class=\"c\">\n<td style=\"text-align: center;\">Pre\u00e7o<\/td>\n<td style=\"text-align: center;\"><strong>3000 $\/kg<\/strong><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<div class=\"su-divider su-divider-style-dotted\" style=\"margin:25px 0;border-width:3px;border-color:#999999\"><\/div>\n<h2>Composi\u00e7\u00e3o da Liga Mo-25 Re<\/h2>\n<p>As ligas de molibd\u00eanio-r\u00eanio contendo at\u00e9 40% de r\u00eanio s\u00e3o predominantemente ligas monof\u00e1sicas de solu\u00e7\u00e3o s\u00f3lida c\u00fabica de corpo centrado.\u00a0<div  class=\"lgc-column lgc-grid-parent lgc-grid-33 lgc-tablet-grid-33 lgc-mobile-grid-100 lgc-equal-heights \"><div  class=\"inside-grid-column\">\n<p style=\"text-align: center;\"><span style=\"font-size: 50px;\">75%<a href=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/09\/Molybdenum-periodic-table.png\"><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter size-thumbnail wp-image-92409\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/09\/Molybdenum-periodic-table-150x150.png\" alt=\"Molibd\u00eanio na Tabela Peri\u00f3dica\" width=\"150\" height=\"150\" \/><\/a><\/span><\/p>\n<\/div><\/div> <div  class=\"lgc-column lgc-grid-parent lgc-grid-33 lgc-tablet-grid-33 lgc-mobile-grid-100 lgc-equal-heights \"><div  class=\"inside-grid-column\">\n<p style=\"text-align: center;\"><span style=\"font-size: 50px;\">25%<a href=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/09\/Rhenium-periodic-table.png\"><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter size-thumbnail wp-image-92454\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/09\/Rhenium-periodic-table-150x150.png\" alt=\"R\u00eanio na Tabela Peri\u00f3dica\" width=\"150\" height=\"150\" \/><\/a><\/span><\/p>\n<\/div><\/div> <div  class=\"lgc-column lgc-grid-parent lgc-grid-33 lgc-tablet-grid-33 lgc-mobile-grid-100 lgc-equal-heights \"><div  class=\"inside-grid-column\">\n<\/div><\/div> <div  class=\"lgc-column lgc-grid-parent lgc-grid-33 lgc-tablet-grid-33 lgc-mobile-grid-100 lgc-equal-heights \"><div  class=\"inside-grid-column\"> <\/div><\/div>\n<div class=\"su-divider su-divider-style-dotted\" style=\"margin:25px 0;border-width:3px;border-color:#999999\"><\/div>\n<h2>Aplica\u00e7\u00f5es da Liga Mo-25 Re<\/h2>\n<p>O r\u00eanio \u00e9 considerado altamente desej\u00e1vel como uma adi\u00e7\u00e3o de liga com outros metais refrat\u00e1rios.\u00a0As ligas de molibd\u00eanio-r\u00eanio oferecem resist\u00eancia a altas temperaturas;\u00a0a combina\u00e7\u00e3o aumenta drasticamente a ductilidade e a resist\u00eancia \u00e0 tra\u00e7\u00e3o.\u00a0O r\u00eanio est\u00e1 ganhando aceita\u00e7\u00e3o em reatores nucleares, foguetes e outras aplica\u00e7\u00f5es comerciais e aeroespaciais.\u00a0<div class=\"su-divider su-divider-style-dotted\" style=\"margin:25px 0;border-width:3px;border-color:#999999\"><\/div>\n<h2>Propriedades Mec\u00e2nicas da Liga Mo-25 Re<\/h2>\n<h3>Resist\u00eancia da Liga Mo-25 Re<\/h3>\n<p>Na mec\u00e2nica dos materiais, a\u00a0<strong>resist\u00eancia de um material<\/strong>\u00a0\u00e9 sua capacidade de suportar uma carga aplicada sem falha ou deforma\u00e7\u00e3o pl\u00e1stica.\u00a0<strong>A resist\u00eancia dos materiais<\/strong>\u00a0considera basicamente a rela\u00e7\u00e3o entre as\u00a0<strong>cargas externas<\/strong>\u00a0aplicadas a um material e a\u00a0<strong>deforma\u00e7\u00e3o<\/strong>\u00a0resultante ou altera\u00e7\u00e3o nas dimens\u00f5es do material.\u00a0Ao projetar estruturas e m\u00e1quinas, \u00e9 importante considerar esses fatores, para que o material selecionado tenha resist\u00eancia adequada para resistir \u00e0s cargas ou for\u00e7as aplicadas e manter sua forma original.<\/p>\n<p><strong>A resist\u00eancia de um material<\/strong>\u00a0\u00e9 sua capacidade de suportar esta carga aplicada sem falha ou deforma\u00e7\u00e3o pl\u00e1stica.\u00a0Para tens\u00e3o de tra\u00e7\u00e3o, a capacidade de um material ou estrutura de suportar cargas que tendem a se alongar \u00e9 conhecida como resist\u00eancia \u00e0 tra\u00e7\u00e3o final (UTS).\u00a0<a href=\"https:\/\/material-properties.org\/what-is-yield-strength-yield-point-definition\/\">O limite de escoamento<\/a>\u00a0ou tens\u00e3o de escoamento \u00e9 a propriedade do material definida como a tens\u00e3o na qual um material come\u00e7a a se deformar plasticamente, enquanto o ponto de escoamento \u00e9 o ponto onde a deforma\u00e7\u00e3o n\u00e3o linear (el\u00e1stica + pl\u00e1stica) come\u00e7a.\u00a0No caso de tens\u00e3o tracional de uma barra uniforme (curva tens\u00e3o-deforma\u00e7\u00e3o), a <a href=\"https:\/\/material-properties.org\/what-is-hookes-law-definition\/\"><b>lei de Hooke<\/b><\/a>\u00a0descreve o comportamento de uma barra na regi\u00e3o el\u00e1stica.\u00a0O\u00a0<a href=\"https:\/\/material-properties.org\/what-is-youngs-modulus-of-elasticity-definition\/\">m\u00f3dulo de elasticidade de Young<\/a>\u00a0\u00e9 o m\u00f3dulo de elasticidade para tens\u00f5es de tra\u00e7\u00e3o e compress\u00e3o no regime de elasticidade linear de uma deforma\u00e7\u00e3o uniaxial e geralmente \u00e9 avaliado por ensaios de tra\u00e7\u00e3o.<\/p>\n<p>Veja tamb\u00e9m:\u00a0<a href=\"https:\/\/material-properties.org\/what-is-strength-definition\/\">Resist\u00eancia dos Materiais<\/a><\/p>\n<h3>Resist\u00eancia \u00e0 tra\u00e7\u00e3o final da Liga Mo-25 Re<\/h3>\n<p>A resist\u00eancia \u00e0 tra\u00e7\u00e3o final da Liga Mo-25 Re \u00e9 de 1100 MPa.<\/p>\n<h3>For\u00e7a de Ced\u00eancia da Liga Mo-25 Re<\/h3>\n<p>O limite de escoamento da Liga Mo-25 Re \u00e9 N\/A.<\/p>\n<h3>M\u00f3dulo de elasticidade da Liga Mo-25 Re<\/h3>\n<p>O m\u00f3dulo de elasticidade de Young da Liga Mo-25 Re \u00e9 de 360 \u200b\u200bGPa.<\/p>\n<h3>Dureza da Liga Mo-25 Re<\/h3>\n<p>Na ci\u00eancia dos materiais, a <a href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/materials-science\/material-properties\/hardness\/\"><strong>dureza<\/strong><\/a> \u00e9 a capacidade de suportar\u00a0<strong>o recuo da superf\u00edcie<\/strong> (<strong>deforma\u00e7\u00e3o pl\u00e1stica localizada<\/strong>) e <strong>arranh\u00f5es<\/strong>.\u00a0<a href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/materials-science\/material-properties\/hardness\/brinell-hardness-test\/\"><strong>O teste de dureza Brinell<\/strong><\/a> \u00e9 um dos testes de dureza de indenta\u00e7\u00e3o, que foi desenvolvido para testes de dureza.\u00a0Nos testes Brinell, um <strong>penetrador esf\u00e9rico<\/strong>\u00a0duro \u00e9 for\u00e7ado sob uma carga espec\u00edfica na superf\u00edcie do metal a ser testado.<\/p>\n<p>O <strong>n\u00famero de dureza Brinell<\/strong> (HB) \u00e9 a carga dividida pela \u00e1rea da superf\u00edcie da indenta\u00e7\u00e3o.\u00a0O di\u00e2metro da impress\u00e3o \u00e9 medido com um microsc\u00f3pio com uma escala sobreposta.\u00a0O n\u00famero de dureza Brinell \u00e9 calculado a partir da equa\u00e7\u00e3o:<\/p>\n<p><a href=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/01\/brinell-hardness-number-definition.png\"><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter size-full wp-image-90677\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/01\/brinell-hardness-number-definition.png\" sizes=\"(max-width: 320px) 100vw, 320px\" srcset=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/01\/brinell-hardness-number-definition.png 320w, https:\/\/material-properties.org\/wp-content\/uploads\/2020\/01\/brinell-hardness-number-definition-300x178.png 300w\" alt=\"n\u00famero de dureza brinell - defini\u00e7\u00e3o\" width=\"320\" height=\"190\" \/><\/a><\/p>\n<p>A dureza Brinell da Liga Mo-25 Re \u00e9 de aproximadamente 350 BHN (convertida).<\/p>\n<p>Veja tamb\u00e9m:\u00a0<a href=\"https:\/\/material-properties.org\/what-is-hardness-definition\/\">Dureza dos Materiais<\/a><\/p>\n<div class=\"su-divider su-divider-style-dotted\" style=\"margin:25px 0;border-width:3px;border-color:#999999\"><\/div> <div  class=\"lgc-column lgc-grid-parent lgc-grid-33 lgc-tablet-grid-33 lgc-mobile-grid-100 lgc-equal-heights \"><div  class=\"inside-grid-column\">\n<h3 style=\"text-align: center;\">Resist\u00eancia dos Materiais<\/h3>\n<p><a href=\"https:\/\/material-properties.org\/strength-of-materials-tensile-yield\/\"><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-108070 size-medium\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2021\/02\/Material-Table-Strength-of-Materials-300x182.png\" alt=\"Tabela de Materiais - Resist\u00eancia dos Materiais\" width=\"300\" height=\"182\" \/><\/a><\/p><\/div><\/div> <div  class=\"lgc-column lgc-grid-parent lgc-grid-33 lgc-tablet-grid-33 lgc-mobile-grid-100 lgc-equal-heights \"><div  class=\"inside-grid-column\">\n<h3 style=\"text-align: center;\">Elasticidade dos Materiais<\/h3>\n<p><a href=\"https:\/\/material-properties.org\/elasticity-of-materials\/\"><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-108080 size-medium\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2021\/02\/Material-Table-Elasticity-of-Materials-300x185.png\" alt=\"Tabela de Materiais - Elasticidade dos Materiais\" width=\"300\" height=\"185\" \/><\/a><\/p><\/div><\/div> <div  class=\"lgc-column lgc-grid-parent lgc-grid-33 lgc-tablet-grid-33 lgc-mobile-grid-100 lgc-equal-heights \"><div  class=\"inside-grid-column\">\n<h3 style=\"text-align: center;\">Dureza dos Materiais<\/h3>\n<p><a href=\"https:\/\/material-properties.org\/hardness-of-materials-brinell-mohs\/\"><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-108085 size-medium\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2021\/02\/Material-Table-Hardness-of-Materials-300x182.png\" alt=\"Tabela de Materiais - Dureza dos Materiais\" width=\"300\" height=\"182\" \/><\/a>\u00a0 <\/p><\/div><\/div> <div class=\"su-divider su-divider-style-dotted\" style=\"margin:25px 0;border-width:3px;border-color:#999999\"><\/div>\n<h2>Propriedades T\u00e9rmicas da Liga Mo-25 Re<\/h2>\n<h3>Liga Mo-25 Re Alloy &#8211; Ponto de Fus\u00e3o<\/h3>\n<p><strong>O ponto de fus\u00e3o da Liga Mo-25 Re \u00e9 2527 <\/strong><strong>\u00b0C<\/strong>.<\/p>\n<p>Observe que esses pontos est\u00e3o associados \u00e0 press\u00e3o atmosf\u00e9rica padr\u00e3o.\u00a0Em geral, a <strong>fus\u00e3o<\/strong> \u00e9 uma <strong>mudan\u00e7a de fase<\/strong> de uma subst\u00e2ncia da fase s\u00f3lida para a l\u00edquida.\u00a0O <strong>ponto de fus\u00e3o<\/strong> de uma subst\u00e2ncia \u00e9 a temperatura na qual essa mudan\u00e7a de fase ocorre.\u00a0O <strong>ponto de fus\u00e3o <\/strong>tamb\u00e9m define uma condi\u00e7\u00e3o na qual o s\u00f3lido e o l\u00edquido podem existir em equil\u00edbrio.\u00a0Para v\u00e1rios compostos qu\u00edmicos e ligas, \u00e9 dif\u00edcil definir o ponto de fus\u00e3o, pois geralmente s\u00e3o uma mistura de v\u00e1rios elementos qu\u00edmicos.<\/p>\n<h3>Liga Mo-25 Re &#8211; Condutividade T\u00e9rmica<\/h3>\n<p>A condutividade t\u00e9rmica da Liga Mo-25 Re \u00e9 de <strong>70\u00a0<\/strong><strong>W\/(m\u00b7K)<\/strong>.<\/p>\n<p>As caracter\u00edsticas de transfer\u00eancia de calor de um material s\u00f3lido s\u00e3o medidas por uma propriedade chamada <strong>condutividade t\u00e9rmica<\/strong>, k (ou \u03bb), medida em\u00a0<strong>W\/mK<\/strong>.\u00a0\u00c9 uma medida da capacidade de uma subst\u00e2ncia de transferir calor atrav\u00e9s de um material por <a href=\"https:\/\/www.thermal-engineering.org\/what-is-thermal-conduction-heat-conduction-definition\/\">condu\u00e7\u00e3o<\/a>.\u00a0Observe que <a href=\"https:\/\/www.thermal-engineering.org\/what-is-fouriers-law-of-thermal-conduction-definition\/\"><strong>a lei de Fourier<\/strong><\/a> se aplica a toda mat\u00e9ria, independentemente de seu estado (s\u00f3lido, l\u00edquido ou gasoso), portanto, tamb\u00e9m \u00e9 definida para l\u00edquidos e gases.<\/p>\n<p>A <a href=\"https:\/\/www.thermal-engineering.org\/what-is-thermal-conductivity-definition\/\"><strong>condutividade t\u00e9rmica<\/strong><\/a> da maioria dos l\u00edquidos e s\u00f3lidos varia com a temperatura.\u00a0Para vapores, tamb\u00e9m depende da press\u00e3o.\u00a0No geral:<\/p>\n<p><a href=\"https:\/\/material-properties.org\/wp-content\/uploads\/2019\/05\/thermal-conductivity-definition.png\"><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter size-full wp-image-88793\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2019\/05\/thermal-conductivity-definition.png\" alt=\"condutividade t\u00e9rmica - defini\u00e7\u00e3o\" width=\"225\" height=\"75\" \/><\/a><\/p>\n<p>A maioria dos materiais s\u00e3o quase homog\u00eaneos, portanto, geralmente podemos escrever <strong><em>k = k(T)<\/em><\/strong>.\u00a0Defini\u00e7\u00f5es semelhantes est\u00e3o associadas a condutividades t\u00e9rmicas nas dire\u00e7\u00f5es y e z (ky, kz), mas para um material isotr\u00f3pico a condutividade t\u00e9rmica \u00e9 independente da dire\u00e7\u00e3o de transfer\u00eancia, kx = ky = kz = k.<\/p>\n<h3>Liga Mo-25 Re &#8211; Calor Espec\u00edfico<\/h3>\n<p><strong>O calor espec\u00edfico da Liga Mo-25 Re \u00e9 <\/strong><strong>220\u00a0<\/strong><strong>J\/g<\/strong>\u00a0<strong>K<\/strong>.<\/p>\n<p><strong>Calor espec\u00edfico, ou capacidade calor\u00edfica espec\u00edfica, <\/strong>\u00e9 uma propriedade relacionada \u00e0\u00a0<strong><a href=\"https:\/\/www.thermal-engineering.org\/what-is-internal-energy-thermal-energy-definition\/\">energia interna<\/a><\/strong> que \u00e9 muito importante na termodin\u00e2mica.\u00a0As <strong>propriedades intensivas <\/strong><strong><em>c<\/em><\/strong><strong><em><sub>v<\/sub><\/em><\/strong> e\u00a0<strong><em>c<\/em><\/strong><strong><em><sub>p<\/sub><\/em><\/strong> s\u00e3o definidas para subst\u00e2ncias compress\u00edveis puras simples como derivadas parciais da\u00a0<strong>energia interna <\/strong><strong><em>u(T, v)<\/em><\/strong> e\u00a0<strong>entalpia <\/strong><strong><em>h(T, p)<\/em><\/strong>, respectivamente:<strong>\u00a0<\/strong><\/p>\n<p><a href=\"https:\/\/material-properties.org\/wp-content\/uploads\/2019\/05\/Specific-Heat-at-Constant-Volume-and-Constant-Pressure.png\"><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter size-full wp-image-87689\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2019\/05\/Specific-Heat-at-Constant-Volume-and-Constant-Pressure.png\" alt=\"\" width=\"106\" height=\"138\" \/><\/a><\/p>\n<p>onde os subscritos <strong>v<\/strong> e\u00a0<strong>p<\/strong> denotam as vari\u00e1veis \u200b\u200bmantidas fixas durante a diferencia\u00e7\u00e3o.\u00a0As propriedades <strong>c<sub>v<\/sub> <\/strong>e\u00a0<strong>c<sub>p<\/sub><\/strong> s\u00e3o chamadas de\u00a0<strong>calores espec\u00edficos<\/strong>\u00a0(ou\u00a0<strong>capacidades t\u00e9rmicas<\/strong>) porque, sob certas condi\u00e7\u00f5es especiais, elas relacionam a mudan\u00e7a de temperatura de um sistema com a quantidade de energia adicionada pela transfer\u00eancia de calor.\u00a0Suas unidades no SI s\u00e3o <strong>J\/kg K<\/strong> ou <strong>J\/mol K<\/strong>.<\/p>\n<div class=\"su-divider su-divider-style-dotted\" style=\"margin:25px 0;border-width:3px;border-color:#999999\"><\/div> <div  class=\"lgc-column lgc-grid-parent lgc-grid-33 lgc-tablet-grid-33 lgc-mobile-grid-100 lgc-equal-heights \"><div  class=\"inside-grid-column\">\n<h3 style=\"text-align: center;\">Ponto de fus\u00e3o dos Materiais<\/h3>\n<p><a href=\"https:\/\/material-properties.org\/melting-point-of-materials\/\"><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-108050 size-medium\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2021\/02\/Material-Table-Metling-Point-300x183.png\" alt=\"Tabela de Materiais - Ponto de Fus\u00e3o\" width=\"300\" height=\"183\" \/><\/a><\/p><\/div><\/div> <div  class=\"lgc-column lgc-grid-parent lgc-grid-33 lgc-tablet-grid-33 lgc-mobile-grid-100 lgc-equal-heights \"><div  class=\"inside-grid-column\">\n<h3 style=\"text-align: center;\">Condutividade T\u00e9rmica dos Materiais<\/h3>\n<p><a href=\"https:\/\/material-properties.org\/thermal-conductivity-of-materials\/\"><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-108055 size-medium\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2021\/02\/Material-Table-Thermal-Conductivity-300x180.png\" alt=\"Tabela de Materiais - Condutividade T\u00e9rmica\" width=\"300\" height=\"180\" \/><\/a><\/p><\/div><\/div> <div  class=\"lgc-column lgc-grid-parent lgc-grid-33 lgc-tablet-grid-33 lgc-mobile-grid-100 lgc-equal-heights \"><div  class=\"inside-grid-column\">\n<h3 style=\"text-align: center;\">Capacidade de Calor dos Materiais<\/h3>\n<p><a href=\"https:\/\/material-properties.org\/heat-capacity-of-materials\/\"><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-108063 size-medium\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2021\/02\/Material-Table-Heat-Capacity-300x179.png\" alt=\"Tabela de Materiais - Capacidade de Calor\" width=\"300\" height=\"179\" \/><\/a><\/p>\n<h3 style=\"text-align: center;\"><\/h3>\n<\/div><\/div> <div class=\"su-divider su-divider-style-dotted\" style=\"margin:25px 0;border-width:3px;border-color:#999999\"><\/div>\n<h2>Propriedades e pre\u00e7os de outros materiais<\/h2>\n<p>tabela de materiais em resolu\u00e7\u00e3o de 8k<\/p>\n<div class=\"su-divider su-divider-style-dotted\" style=\"margin:20px 0;border-width:2px;border-color:#999999\"><\/div>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Sobre a Liga Mo-25 Re O molibd\u00eanio e o r\u00eanio s\u00e3o ambos metais refrat\u00e1rios.\u00a0Esses metais s\u00e3o bem conhecidos por sua extraordin\u00e1ria resist\u00eancia ao calor e ao desgaste.\u00a0O principal requisito para suportar altas temperaturas \u00e9 um alto ponto de fus\u00e3o e propriedades mec\u00e2nicas est\u00e1veis \u200b\u200b(por exemplo, alta dureza) mesmo em altas temperaturas.\u00a0Esses metais s\u00e3o geralmente combinados &#8230; <a title=\"Liga Mo-25 Re &#8211; Tabela de Materiais &#8211; Aplica\u00e7\u00f5es &#8211; Pre\u00e7o\" class=\"read-more\" href=\"https:\/\/material-properties.org\/pt-br\/liga-mo-25-re-tabela-de-materiais-aplicacoes-preco\/\">Ler mais&#8230;<\/a><\/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>Liga Mo-25 Re | Propriedades, Pre\u00e7o e Aplica\u00e7\u00e3o | Propriedades do Material<\/title>\n<meta name=\"description\" content=\"O molibd\u00eanio e o r\u00eanio s\u00e3o ambos metais refrat\u00e1rios. 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