{"id":128285,"date":"2026-05-27T10:53:01","date_gmt":"2026-05-27T08:53:01","guid":{"rendered":"https:\/\/www.linseis.com\/sem-categoria\/ligas-de-alta-entropia-heas-analise-termica-e-propriedades-termofisicas\/"},"modified":"2026-05-27T11:18:13","modified_gmt":"2026-05-27T09:18:13","slug":"ligas-de-alta-entropia-heas-analise-termica-e-propriedades-termofisicas","status":"publish","type":"post","link":"https:\/\/www.linseis.com\/pt-pt\/conhecimentos\/ligas-de-alta-entropia-heas-analise-termica-e-propriedades-termofisicas\/","title":{"rendered":"Ligas de alta entropia (HEAs): An\u00e1lise t\u00e9rmica e propriedades termof\u00edsicas"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"128285\" class=\"elementor elementor-128285 elementor-128230\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-b75441f e-flex e-con-boxed e-con e-parent\" data-id=\"b75441f\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-35d541b e-con-full e-flex e-con e-child\" data-id=\"35d541b\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-97683da elementor-toc--minimized-on-tablet elementor-widget elementor-widget-table-of-contents\" data-id=\"97683da\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;headings_by_tags&quot;:[&quot;h2&quot;],&quot;exclude_headings_by_selector&quot;:[],&quot;no_headings_message&quot;:&quot;No headings were found on this 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contents\"><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-chevron-down\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M207.029 381.476L12.686 187.132c-9.373-9.373-9.373-24.569 0-33.941l22.667-22.667c9.357-9.357 24.522-9.375 33.901-.04L224 284.505l154.745-154.021c9.379-9.335 24.544-9.317 33.901.04l22.667 22.667c9.373 9.373 9.373 24.569 0 33.941L240.971 381.476c-9.373 9.372-24.569 9.372-33.942 0z\"><\/path><\/svg><\/div>\n\t\t\t\t<div class=\"elementor-toc__toggle-button elementor-toc__toggle-button--collapse\" role=\"button\" tabindex=\"0\" aria-controls=\"elementor-toc__97683da\" aria-expanded=\"true\" aria-label=\"Close table of contents\"><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-chevron-up\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M240.971 130.524l194.343 194.343c9.373 9.373 9.373 24.569 0 33.941l-22.667 22.667c-9.357 9.357-24.522 9.375-33.901.04L224 227.495 69.255 381.516c-9.379 9.335-24.544 9.317-33.901-.04l-22.667-22.667c-9.373-9.373-9.373-24.569 0-33.941L207.03 130.525c9.372-9.373 24.568-9.373 33.941-.001z\"><\/path><\/svg><\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<div id=\"elementor-toc__97683da\" class=\"elementor-toc__body\">\n\t\t\t<div class=\"elementor-toc__spinner-container\">\n\t\t\t\t<svg class=\"elementor-toc__spinner eicon-animation-spin e-font-icon-svg e-eicon-loading\" aria-hidden=\"true\" viewBox=\"0 0 1000 1000\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M500 975V858C696 858 858 696 858 500S696 142 500 142 142 304 142 500H25C25 237 238 25 500 25S975 237 975 500 763 975 500 975Z\"><\/path><\/svg>\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d69a620 elementor-widget elementor-widget-spacer\" data-id=\"d69a620\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f563fb9 elementor-widget elementor-widget-text-editor\" data-id=\"f563fb9\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>As ligas de alta entropia (HEAs) s\u00e3o atualmente consideradas como uma classe chave de materiais para aplica\u00e7\u00f5es de alto desempenho em <a href=\"https:\/\/www.linseis.com\/pt-pt\/applikationen\/automovel-aeroespacial\/\"><strong>aeroespacial<\/strong><\/a>gera\u00e7\u00e3o de energia e constru\u00e7\u00e3o de turbinas e reactores. Devido \u00e0 sua composi\u00e7\u00e3o complexa e multicomponente, apresentam combina\u00e7\u00f5es \u00fanicas de elevada resist\u00eancia, temperatura e resist\u00eancia \u00e0 oxida\u00e7\u00e3o. <a href=\"https:\/\/www.linseis.com\/pt-pt\/conhecimentos\/tempo-e-temperatura-de-inducao-da-oxidacao\/\"><strong>resist\u00eancia \u00e0 oxida\u00e7\u00e3o<\/strong><\/a> &#8211; mas, ao mesmo tempo, s\u00e3o extremamente dif\u00edceis de caraterizar. A an\u00e1lise t\u00e9rmica precisa e a determina\u00e7\u00e3o das propriedades termof\u00edsicas s\u00e3o, por conseguinte, factores essenciais para o desenvolvimento e a simula\u00e7\u00e3o orientados dos HEAs e para a sua transfer\u00eancia para aplica\u00e7\u00f5es industriais (Odetola et al., 2024).  <\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3f25694 elementor-widget elementor-widget-spacer\" data-id=\"3f25694\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-70a90bd elementor-widget elementor-widget-heading\" data-id=\"70a90bd\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">O que s\u00e3o ligas de alta entropia?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3e57f3d elementor-widget elementor-widget-spacer\" data-id=\"3e57f3d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8bfe25d elementor-widget elementor-widget-text-editor\" data-id=\"8bfe25d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>As ligas de alta entropia &#8211; tamb\u00e9m conhecidas como <em>ligas de elementos multi-principais<\/em> ou <em>ligas concentradas complexas<\/em> &#8211; s\u00e3o normalmente constitu\u00eddas por pelo menos cinco elementos principais na gama de 5-35 at.-%. Em contraste com as ligas cl\u00e1ssicas com um elemento de base dominante (por exemplo, Ni, Co ou Fe, metal condutor), as propriedades das HEAs s\u00e3o determinadas pela mistura e pelo efeito de entropia de v\u00e1rios elementos (Odetola et al., 2024). A elevada entropia configuracional estabiliza frequentemente fases simples de solu\u00e7\u00f5es s\u00f3lidas (FCC, BCC, HCP) e conduz a uma variedade de &#8220;efeitos nucleares&#8221;, tais como forte distor\u00e7\u00e3o da rede, difus\u00e3o lenta e efeitos sin\u00e9rgicos de propriedades (&#8220;efeito cocktail&#8221;).<\/p><p>As HEAs s\u00e3o particularmente interessantes para aplica\u00e7\u00f5es de alto desempenho porque oferecem um equil\u00edbrio excecional de resist\u00eancia, tenacidade, estabilidade de temperatura e, muitas vezes, tamb\u00e9m uma melhor resist\u00eancia \u00e0 oxida\u00e7\u00e3o e ao desgaste (Odetola et al., 2024; Liu et al., 2023). As \u00e1reas de aplica\u00e7\u00e3o t\u00edpicas s\u00e3o as p\u00e1s das turbinas, os componentes dos reactores e das c\u00e2maras de combust\u00e3o, bem como os componentes estruturais de alta temperatura, onde as superligas convencionais atingem os seus limites. <\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-89c0869 elementor-widget elementor-widget-spacer\" data-id=\"89c0869\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" class=\"e-image-base e-21f92a0-4b1c716\" data-interaction-id=\"21f92a0\" data-e-type=\"widget\" data-id=\"21f92a0\" id=\"128280\" src=\"https:\/\/www.linseis.com\/wp-content\/uploads\/2026\/05\/Crystal-Structures-and-Lattice-Distortion-in-High-Entropy-Alloys.png\" width=\"1536\" height=\"1024\" srcset=\"https:\/\/www.linseis.com\/wp-content\/uploads\/2026\/05\/Crystal-Structures-and-Lattice-Distortion-in-High-Entropy-Alloys.png 1536w, https:\/\/www.linseis.com\/wp-content\/uploads\/2026\/05\/Crystal-Structures-and-Lattice-Distortion-in-High-Entropy-Alloys-300x200.png 300w, https:\/\/www.linseis.com\/wp-content\/uploads\/2026\/05\/Crystal-Structures-and-Lattice-Distortion-in-High-Entropy-Alloys-1024x683.png 1024w, https:\/\/www.linseis.com\/wp-content\/uploads\/2026\/05\/Crystal-Structures-and-Lattice-Distortion-in-High-Entropy-Alloys-768x512.png 768w\" alt=\"Infografia cient\u00edfica que mostra as estruturas cristalinas FCC, BCC e HCP em ligas de alta entropia com redes at\u00f3micas de v\u00e1rios elementos e visualiza\u00e7\u00e3o da distor\u00e7\u00e3o da rede causada por composi\u00e7\u00f5es de ligas complexas.\"\/>\t\t\t\t<div class=\"elementor-element elementor-element-8924b53 elementor-widget elementor-widget-text-editor\" data-id=\"8924b53\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><em>Visualiza\u00e7\u00e3o criada com gera\u00e7\u00e3o de imagens baseada em IA.<\/em><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2779a66 elementor-widget elementor-widget-spacer\" data-id=\"2779a66\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-56bfe34 elementor-widget elementor-widget-heading\" data-id=\"56bfe34\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Porque \u00e9 que a an\u00e1lise t\u00e9rmica \u00e9 crucial para as HEAs<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-36f5a88 elementor-widget elementor-widget-spacer\" data-id=\"36f5a88\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-035f339 elementor-widget elementor-widget-text-editor\" data-id=\"035f339\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Lidar com sistemas multicomponentes gera diagramas de fase extremamente complexos, por vezes vagamente definidos. Sem uma an\u00e1lise t\u00e9rmica s\u00f3lida, as transi\u00e7\u00f5es de fase, as gamas de estabilidade e o comportamento de rea\u00e7\u00e3o dificilmente podem ser previstos de forma fi\u00e1vel. A an\u00e1lise t\u00e9rmica fornece, portanto, a base para uma avalia\u00e7\u00e3o fi\u00e1vel do material e para a valida\u00e7\u00e3o de modelos termodin\u00e2micos (CALPHAD, c\u00e1lculos de entropia) (Odetola et al., 2024).  <\/p><p>A depend\u00eancia da temperatura da estabilidade da fase e do comportamento de difus\u00e3o \u00e9 particularmente cr\u00edtica para os HEAs:<\/p><ul><li><strong>A estabilidade das fases<\/strong> nas HEAs \u00e9 largamente dominada pela contribui\u00e7\u00e3o da entropia; com o aumento da temperatura, as solu\u00e7\u00f5es s\u00f3lidas simples estabilizam-se frequentemente \u00e0 custa de fases intermet\u00e1licas complexas ou de Laves (Odetola et al., 2024).<\/li><li><strong>O comportamento de difus\u00e3o<\/strong> \u00e9 significativamente retardado nos HEAs (&#8220;difus\u00e3o lenta&#8221;), o que favorece a forma\u00e7\u00e3o de nanoprecipitados finos e est\u00e1veis e uma elevada estabilidade \u00e0 flu\u00eancia (Odetola et al., 2024).<\/li><li>O <strong>comportamento da rea\u00e7\u00e3o e a oxida\u00e7\u00e3o<\/strong> dependem fortemente da temperatura, da atmosfera e da composi\u00e7\u00e3o; a an\u00e1lise t\u00e9rmica sob g\u00e1s inerte ou ar fornece informa\u00e7\u00f5es decisivas sobre os processos de oxida\u00e7\u00e3o e decomposi\u00e7\u00e3o (por exemplo, atrav\u00e9s de medi\u00e7\u00f5es STA).<\/li><\/ul><p>A estabilidade t\u00e9rmica pode ser determinada sem an\u00e1lise t\u00e9rmica, <a href=\"https:\/\/www.linseis.com\/pt-pt\/conhecimentos\/mede-a-transicao-de-fase-com-dsc\/\"><strong>o comportamento das fases<\/strong><\/a> e, portanto, tamb\u00e9m as janelas de processo para fundi\u00e7\u00e3o, tratamento t\u00e9rmico ou fabrico aditivo <a href=\"https:\/\/www.linseis.com\/pt-pt\/conhecimentos\/fabrico-avancado-de-aditivos-com-analise-termica\/\"><strong>fabrico aditivo<\/strong><\/a> n\u00e3o podem ser definidas de forma fi\u00e1vel &#8211; n\u00e3o \u00e9 ent\u00e3o poss\u00edvel uma avalia\u00e7\u00e3o fi\u00e1vel do material (Odetola et al., 2024).<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-72b4575 elementor-widget elementor-widget-spacer\" data-id=\"72b4575\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1b982d6 elementor-widget elementor-widget-heading\" data-id=\"1b982d6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">M\u00e9todos de medi\u00e7\u00e3o relevantes para os HEAs<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-92f5197 elementor-widget elementor-widget-spacer\" data-id=\"92f5197\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5df331d elementor-widget elementor-widget-text-editor\" data-id=\"5df331d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h3>Calorimetria Explorat\u00f3ria Diferencial (DSC)<\/h3><p><a href=\"https:\/\/www.linseis.com\/pt-pt\/equipamentos\/dsc-calorimetria-de-varrimento-diferencial\/\"><strong>DSC<\/strong><\/a> \u00e9 uma t\u00e9cnica fundamental para a determina\u00e7\u00e3o de transi\u00e7\u00f5es de fase, curvas de fus\u00e3o e solidifica\u00e7\u00e3o, bem como da capacidade t\u00e9rmica em HEAs. A metalurgia dos HEAs mostra frequentemente v\u00e1rias sobreposi\u00e7\u00f5es de transforma\u00e7\u00f5es de fase (por exemplo, FCC-\u2194-BCC, forma\u00e7\u00e3o ou dissolu\u00e7\u00e3o de fases Laves ou \u03b3&#8217;), que aparecem nas curvas DSC como <a href=\"https:\/\/www.linseis.com\/pt-pt\/conhecimentos\/reaccoes-endotermicas-vs-reaccoes-exotermicas\/\"><strong>picos endot\u00e9rmicos ou exot\u00e9rmicos<\/strong><\/a> (Odetola et al., 2024; Liu et al., 2023). <\/p><p>Atrav\u00e9s da integra\u00e7\u00e3o das curvas DSC, a capacidade t\u00e9rmica molar <a href=\"https:\/\/www.linseis.com\/pt-pt\/variaveis-medidas\/capacidade-termica-especifica\/\"><strong>molar<\/strong><\/a> que, por sua vez, fornece informa\u00e7\u00f5es sobre a entropia t\u00e9rmica e a estabilidade das fases da solu\u00e7\u00e3o s\u00f3lida (Odetola et al., 2024). A carateriza\u00e7\u00e3o baseada em DSC tamb\u00e9m apoia a sele\u00e7\u00e3o de par\u00e2metros para processos de tratamento t\u00e9rmico (recozimento, envelhecimento) e a identifica\u00e7\u00e3o de temperaturas de recozimento de solu\u00e7\u00e3o para as fases \u03b3&#8217; ou Laves (Liu et al., 2023). <\/p><h3>An\u00e1lise t\u00e9rmica simult\u00e2nea (STA \/ TGA-DSC)<\/h3><p><a href=\"https:\/\/www.linseis.com\/pt-pt\/equipamentos\/analise-termica\/sta-analise-termica-simultanea\/\"><strong>Medi\u00e7\u00f5es STA<\/strong><\/a> (combinadas <a href=\"https:\/\/www.linseis.com\/pt-pt\/equipamentos\/tga-termogravimetria\/\"><strong>termogravimetria<\/strong><\/a> e an\u00e1lise calorim\u00e9trica) fornecem dados de massa e calor ao mesmo tempo e s\u00e3o \u00fateis para avaliar a <a href=\"https:\/\/www.linseis.com\/pt-pt\/conhecimentos\/medicao-da-estabilidade-termica\/\"><strong>estabilidade t\u00e9rmica<\/strong><\/a> estabilidade t\u00e9rmica e o comportamento de oxida\u00e7\u00e3o dos HEAs. Nos HEAs, a massa (por exemplo, devido a reac\u00e7\u00f5es de oxida\u00e7\u00e3o ou decomposi\u00e7\u00e3o) e o estado de fase mudam frequentemente na mesma gama de temperaturas, pelo que uma medi\u00e7\u00e3o acoplada facilita muito a interpreta\u00e7\u00e3o (Odetola et al., 2024; Liu et al., 2023). <\/p><p>Aplica\u00e7\u00f5es t\u00edpicas da STA:<\/p><ul><li>Determina\u00e7\u00e3o dos <strong>pontos de partida da oxida\u00e7\u00e3o<\/strong> e da <strong>perda de massa<\/strong> a altas temperaturas (por exemplo, 800-1200 \u00b0C).<\/li><li>Identifica\u00e7\u00e3o de <strong>efeitos de decomposi\u00e7\u00e3o ou dessor\u00e7\u00e3o<\/strong>, por exemplo, em revestimentos ou ligas de baixo teor de \u00f3xido.<\/li><li>Determina\u00e7\u00e3o da <strong>estabilidade t\u00e9rmica<\/strong> e das <strong>temperaturas de equil\u00edbrio<\/strong> para a forma\u00e7\u00e3o de fases.<\/li><\/ul><p>O STA fornece assim uma base de dados direta para a sele\u00e7\u00e3o de atmosferas de g\u00e1s de prote\u00e7\u00e3o ou de ar nos processos de fabrico e de opera\u00e7\u00e3o.<\/p><h3>An\u00e1lise de flash laser (LFA)<\/h3><p>A <a href=\"https:\/\/www.linseis.com\/pt-pt\/equipamentos\/condutividade-termica\/lfa-analisador-de-flash-a-laser\/\"><strong>an\u00e1lise de flash laser<\/strong><\/a> permite a determina\u00e7\u00e3o da difusividade t\u00e9rmica e &#8211; derivada desta &#8211; da <a href=\"https:\/\/www.linseis.com\/pt-pt\/variaveis-medidas\/condutividade-termica\/\"><strong>condutividade t\u00e9rmica<\/strong><\/a> numa vasta gama de temperaturas. As HEAs mostram frequentemente misturas invulgares de condutividade t\u00e9rmica moderada a baixa e elevada estabilidade mec\u00e2nica, o que \u00e9 particularmente interessante para o design t\u00e9rmico (Liu et al., 2023; Odetola et al., 2024). <\/p><p>O m\u00e9todo LFA \u00e9 particularmente adequado para amostras densas e homog\u00e9neas de HEA e fornece dados de entrada importantes para simula\u00e7\u00f5es t\u00e9rmicas:<\/p><ul><li><strong>A difusividade t\u00e9rmica<\/strong> descreve a rapidez com que um campo de temperatura \u00e9 estabelecido na amostra.<\/li><li><strong>A condutividade t\u00e9rmica<\/strong> (\u03bb) \u00e9 normalmente calculada a partir da difusividade, do calor espec\u00edfico e da densidade e \u00e9 decisiva para a conce\u00e7\u00e3o de estrat\u00e9gias de arrefecimento (por exemplo, em p\u00e1s de turbinas ou componentes de reactores).<\/li><\/ul><p>A combina\u00e7\u00e3o de DSC (para cpc_pcp) e LFA (para \\(a\\)) permite uma carateriza\u00e7\u00e3o termof\u00edsica completa e dependente da temperatura dos HEAs.<\/p><h3>Dilatometria<\/h3><p>A <a href=\"https:\/\/www.linseis.com\/pt-pt\/equipamentos\/dilatometro\/\"><strong>dilatometria<\/strong><\/a> mede a mudan\u00e7a no comprimento das amostras de HEA com a temperatura e, assim, fornece informa\u00e7\u00f5es diretas sobre a <a href=\"https:\/\/www.linseis.com\/pt-pt\/conhecimentos\/determinacao-da-densidade-cte\/\"><strong>expans\u00e3o t\u00e9rmica (CTE)<\/strong><\/a> e transforma\u00e7\u00f5es de fase. As HEAs com paisagens de fase complexas (estruturas mistas FCC\/BCC, microestruturas eut\u00e9cticas ou lamelares) apresentam frequentemente curvas CTE n\u00e3o lineares, que aparecem como dobras ou planaltos nos dados do dilat\u00f3metro (Liu et al., 2023; Odetola et al., 2024). <\/p><p>Aplica\u00e7\u00f5es t\u00edpicas:<\/p><ul><li>Determina\u00e7\u00e3o do <strong>coeficiente de expans\u00e3o linear (CTE)<\/strong> em gamas de temperatura relevantes.<\/li><li>Identifica\u00e7\u00e3o de <strong>transforma\u00e7\u00f5es de fase<\/strong> (por exemplo, forma\u00e7\u00e3o de BCC, bainha de Laves, solu\u00e7\u00e3o \u03b3&#8217;).<\/li><li>Investiga\u00e7\u00e3o dos <strong>processos de sinteriza\u00e7\u00e3o e difus\u00e3o<\/strong>, especialmente em amostras de HEA fabricadas aditivamente ou compactadas.<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c348815 elementor-widget elementor-widget-spacer\" data-id=\"c348815\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<img decoding=\"async\" class=\"e-image-base e-1883e7c-cc392f0\" data-interaction-id=\"1883e7c\" data-e-type=\"widget\" data-id=\"1883e7c\"  id=\"128281\" src=\"https:\/\/www.linseis.com\/wp-content\/uploads\/2026\/05\/Thermal-Analysis-Methods-for-High-Entropy-Alloys.png\" width=\"1536\" height=\"1024\" srcset=\"https:\/\/www.linseis.com\/wp-content\/uploads\/2026\/05\/Thermal-Analysis-Methods-for-High-Entropy-Alloys.png 1536w, https:\/\/www.linseis.com\/wp-content\/uploads\/2026\/05\/Thermal-Analysis-Methods-for-High-Entropy-Alloys-300x200.png 300w, https:\/\/www.linseis.com\/wp-content\/uploads\/2026\/05\/Thermal-Analysis-Methods-for-High-Entropy-Alloys-1024x683.png 1024w, https:\/\/www.linseis.com\/wp-content\/uploads\/2026\/05\/Thermal-Analysis-Methods-for-High-Entropy-Alloys-768x512.png 768w\" alt=\"Infografia cient\u00edfica que ilustra os m\u00e9todos de an\u00e1lise t\u00e9rmica DSC, STA e LFA para ligas de alta entropia, incluindo transforma\u00e7\u00f5es de fase, comportamento de oxida\u00e7\u00e3o, estabilidade t\u00e9rmica, difusividade e medi\u00e7\u00f5es de condutividade t\u00e9rmica a temperaturas elevadas.\"\/>\t\t\t\t<div class=\"elementor-element elementor-element-25a936e elementor-widget elementor-widget-text-editor\" data-id=\"25a936e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><em>Visualiza\u00e7\u00e3o criada com gera\u00e7\u00e3o de imagens baseada em IA.<\/em><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ac9afd3 elementor-widget elementor-widget-spacer\" data-id=\"ac9afd3\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-95aac46 elementor-widget elementor-widget-heading\" data-id=\"95aac46\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Propriedades termof\u00edsicas importantes dos HEAs<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6dd2e47 elementor-widget elementor-widget-spacer\" data-id=\"6dd2e47\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a18f69c elementor-widget elementor-widget-text-editor\" data-id=\"a18f69c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Os HEAs combinam uma variedade de propriedades termof\u00edsicas que resultam diretamente da sua estrutura multicomponente e dos &#8220;efeitos de n\u00facleo&#8221; acima mencionados:<\/p><ul><li><strong>A condutividade t\u00e9rmica<\/strong> \u00e9 frequentemente baixa a moderada, devido \u00e0 perturba\u00e7\u00e3o das vias de condu\u00e7\u00e3o de calor e ao aumento da dispers\u00e3o de f\u00f5es (Liu et al., 2023).<\/li><li><strong>A difusividade t\u00e9rmica<\/strong> pode variar consoante a microestrutura; as fases lamelares ou nanom\u00e9tricas s\u00e3o geralmente menos condutoras de calor.<\/li><li><strong>O calor t\u00e9rmico\/espec\u00edfico<\/strong> \u00e9 determinado por DSC e \u00e9 utilizado para calcular a entropia t\u00e9rmica e a energia de Gibbs (Odetola et al., 2024).<\/li><li><strong>A expans\u00e3o t\u00e9rmica (CTE)<\/strong> \u00e9 dependente da frequ\u00eancia e da tens\u00e3o e pode diferir muito das ligas convencionais em HEAs.<\/li><li><strong>A resist\u00eancia \u00e0 oxida\u00e7\u00e3o<\/strong> \u00e9 largamente determinada pela forma\u00e7\u00e3o de camadas de \u00f3xido complexas e multicomponentes, que apresentam uma melhor estabilidade a longo prazo em muitas HEAs do que em superligas cl\u00e1ssicas (por exemplo, sistemas \u00e0 base de Ni) (Liu et al., 2023).<\/li><\/ul><p><br>Os HEAs refract\u00e1rios (RHEAs), em particular, apresentam um padr\u00e3o comum: elevada for\u00e7a e resist\u00eancia \u00e0 flu\u00eancia combinadas com uma condutividade t\u00e9rmica moderada a baixa &#8211; um perfil muito atrativo para componentes de alta temperatura (Liu et al., 2023; Odetola et al., 2024).<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0e0a422 elementor-widget elementor-widget-spacer\" data-id=\"0e0a422\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1632185 elementor-widget elementor-widget-heading\" data-id=\"1632185\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Aplica\u00e7\u00f5es t\u00edpicas dos HEAs<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d6035da elementor-widget elementor-widget-spacer\" data-id=\"d6035da\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-cc80029 elementor-widget elementor-widget-text-editor\" data-id=\"cc80029\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>As excelentes propriedades t\u00e9rmicas e mec\u00e2nicas dos HEAs tornam-nos muito atractivos para aplica\u00e7\u00f5es de elevado desempenho:<\/p><ul><li><strong>Turbinas e componentes de alta temperatura<\/strong>: As HEAs est\u00e3o a ser investigadas para l\u00e2minas de turbinas, componentes de c\u00e2maras de combust\u00e3o e tubagens de alta temperatura; a sua combina\u00e7\u00e3o de alta resist\u00eancia e superf\u00edcie resistente \u00e0 oxida\u00e7\u00e3o \u00e9 vantajosa em rela\u00e7\u00e3o \u00e0s superligas cl\u00e1ssicas (Liu et al., 2023).<\/li><li><strong>Tecnologia nuclear<\/strong>: A estrutura est\u00e1vel \u00e0 temperatura e \u00e0 radia\u00e7\u00e3o de muitos HEAs e a sua maior resist\u00eancia \u00e0 corros\u00e3o e \u00e0 oxida\u00e7\u00e3o em ambientes agressivos tornam-nos interessantes para o revestimento de combust\u00edvel e componentes estruturais (Odetola et al., 2024).<\/li><li><strong>Revestimentos resistentes ao desgaste<\/strong>: Os revestimentos HEA apresentam uma excelente estabilidade t\u00e9rmica e uma elevada resist\u00eancia ao desgaste, por exemplo, em aplica\u00e7\u00f5es tribol\u00f3gicas a alta temperatura (Liu et al., 2023).<\/li><li><strong>Sistemas energ\u00e9ticos<\/strong>: Os HEAs de alta temperatura est\u00e3o a ser investigados para armazenamento de calor a alta temperatura, componentes de reactores e turbom\u00e1quinas em centrais el\u00e9ctricas de alta temperatura e motores hipers\u00f3nicos (Odetola et al., 2024).<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b28ef4e elementor-widget elementor-widget-spacer\" data-id=\"b28ef4e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<img decoding=\"async\" class=\"e-image-base e-04f427c-617bc41\" data-interaction-id=\"04f427c\" data-e-type=\"widget\" data-id=\"04f427c\"  id=\"128282\" src=\"https:\/\/www.linseis.com\/wp-content\/uploads\/2026\/05\/High-Entropy-Alloys-for-Turbine-and-Reactor-Applications.png\" width=\"1536\" height=\"1024\" srcset=\"https:\/\/www.linseis.com\/wp-content\/uploads\/2026\/05\/High-Entropy-Alloys-for-Turbine-and-Reactor-Applications.png 1536w, https:\/\/www.linseis.com\/wp-content\/uploads\/2026\/05\/High-Entropy-Alloys-for-Turbine-and-Reactor-Applications-300x200.png 300w, https:\/\/www.linseis.com\/wp-content\/uploads\/2026\/05\/High-Entropy-Alloys-for-Turbine-and-Reactor-Applications-1024x683.png 1024w, https:\/\/www.linseis.com\/wp-content\/uploads\/2026\/05\/High-Entropy-Alloys-for-Turbine-and-Reactor-Applications-768x512.png 768w\" alt=\"Visualiza\u00e7\u00e3o cient\u00edfica de aplica\u00e7\u00f5es de ligas de alta entropia em sistemas de turbinas e reactores, mostrando componentes de alta temperatura, resist\u00eancia \u00e0 oxida\u00e7\u00e3o, estabilidade t\u00e9rmica e microestruturas avan\u00e7adas para ambientes industriais extremos.\"\/>\t\t\t\t<div class=\"elementor-element elementor-element-53bfd8e elementor-widget elementor-widget-text-editor\" data-id=\"53bfd8e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><em>Visualiza\u00e7\u00e3o criada com gera\u00e7\u00e3o de imagens baseada em IA.<\/em><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c7225d7 elementor-widget elementor-widget-spacer\" data-id=\"c7225d7\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2c36fea elementor-widget elementor-widget-heading\" data-id=\"2c36fea\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Requisitos de medi\u00e7\u00e3o no laborat\u00f3rio  <\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5093464 elementor-widget elementor-widget-spacer\" data-id=\"5093464\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2b2fdfa elementor-widget elementor-widget-text-editor\" data-id=\"2b2fdfa\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>A carateriza\u00e7\u00e3o de HEAs em laborat\u00f3rio requer uma variedade de requisitos espec\u00edficos:<\/p><ul><li>S\u00e3o necess\u00e1rias <strong>temperaturas elevadas<\/strong> (&gt;1000 \u00b0C, em alguns casos at\u00e9 1500-1600 \u00b0C) para captar as gamas de fase e de difus\u00e3o relevantes.<\/li><li><strong>As condi\u00e7\u00f5es de g\u00e1s inerte e v\u00e1cuo<\/strong> s\u00e3o essenciais para evitar oxida\u00e7\u00e3o ou contamina\u00e7\u00e3o indesejadas.<\/li><li>A <strong>prepara\u00e7\u00e3o das amostras<\/strong> deve garantir a m\u00e1xima homogeneidade, uma vez que a an\u00e1lise t\u00e9rmica depende de amostras quimicamente homog\u00e9neas e estruturalmente uniformes.<\/li><li><strong>A reprodutibilidade<\/strong> \u00e9 crucial; muitos HEAs exibem um comportamento de fase que \u00e9 altamente dependente dos perfis de temperatura e tempo, raz\u00e3o pela qual s\u00e3o necess\u00e1rios protocolos de medi\u00e7\u00e3o padronizados e sistemas automatizados.<\/li><\/ul><p>Uma combina\u00e7\u00e3o de medi\u00e7\u00f5es de DSC, STA, LFA e dilatometria fornece uma carateriza\u00e7\u00e3o completa e multidimensional, que \u00e9 essencial para o desenvolvimento e valida\u00e7\u00e3o de HEAs (Odetola et al., 2024; Liu et al., 2023).<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a477b16 elementor-widget elementor-widget-spacer\" data-id=\"a477b16\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2f6d72f elementor-widget elementor-widget-heading\" data-id=\"2f6d72f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Conclus\u00e3o<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c43d94c elementor-widget elementor-widget-spacer\" data-id=\"c43d94c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3d70752 elementor-widget elementor-widget-text-editor\" data-id=\"3d70752\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>A an\u00e1lise t\u00e9rmica \u00e9 um fator-chave para o desenvolvimento e a utiliza\u00e7\u00e3o industrial de ligas de alta entropia. Sem dados t\u00e9rmicos e termof\u00edsicos precisos, as transi\u00e7\u00f5es de fase, a estabilidade t\u00e9rmica e o comportamento a longo prazo das ligas de alta entropia n\u00e3o podem ser simulados nem transferidos de forma fi\u00e1vel para aplica\u00e7\u00f5es t\u00e9cnicas. A combina\u00e7\u00e3o de v\u00e1rios m\u00e9todos de medi\u00e7\u00e3o &#8211; DSC, STA, LFA, dilatometria &#8211; fornece uma vis\u00e3o abrangente da dimens\u00e3o t\u00e9rmica das HEAs e apoia o desenvolvimento de componentes de alta temperatura em sistemas aeroespaciais, energ\u00e9ticos e metal\u00fargicos de alto desempenho.  <\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-422900a elementor-widget elementor-widget-spacer\" data-id=\"422900a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d311197 elementor-widget elementor-widget-heading\" data-id=\"d311197\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Bibliografia<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-bc5a2c1 elementor-widget elementor-widget-spacer\" data-id=\"bc5a2c1\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7ec0ae5 elementor-widget elementor-widget-text-editor\" data-id=\"7ec0ae5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Liu, Y. et al. (2023) <em>Propriedades a alta temperatura e conce\u00e7\u00e3o termodin\u00e2mica de ligas avan\u00e7adas de alta entropia<\/em>. Em: <em>Advanced Materials Review<\/em>, 15, pp. 123-145.  <\/p><p>Odetola, P. et al. (2024) <em>Exploring high entropy alloys: A review on thermodynamic design and computational modelling strategies for advanced materials applications<\/em>. Em: <em>Heliyon<\/em>, 10(22), e39660.  <\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>As ligas de alta entropia (HEAs) s\u00e3o agora consideradas como uma classe de materiais chave para aplica\u00e7\u00f5es de alto desempenho na ind\u00fastria aeroespacial, gera\u00e7\u00e3o de energia, turbinas e constru\u00e7\u00e3o de reactores. Devido \u00e0 sua composi\u00e7\u00e3o complexa e multicomponente, apresentam combina\u00e7\u00f5es \u00fanicas de elevada resist\u00eancia, temperatura e resist\u00eancia \u00e0 oxida\u00e7\u00e3o &#8211; mas, ao mesmo tempo, s\u00e3o extremamente dif\u00edceis de caraterizar.   <\/p>\n","protected":false},"author":3,"featured_media":128283,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[654],"tags":[],"class_list":["post-128285","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-conhecimentos"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.linseis.com\/pt-pt\/wp-json\/wp\/v2\/posts\/128285","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.linseis.com\/pt-pt\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.linseis.com\/pt-pt\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.linseis.com\/pt-pt\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/www.linseis.com\/pt-pt\/wp-json\/wp\/v2\/comments?post=128285"}],"version-history":[{"count":0,"href":"https:\/\/www.linseis.com\/pt-pt\/wp-json\/wp\/v2\/posts\/128285\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.linseis.com\/pt-pt\/wp-json\/wp\/v2\/media\/128283"}],"wp:attachment":[{"href":"https:\/\/www.linseis.com\/pt-pt\/wp-json\/wp\/v2\/media?parent=128285"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.linseis.com\/pt-pt\/wp-json\/wp\/v2\/categories?post=128285"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.linseis.com\/pt-pt\/wp-json\/wp\/v2\/tags?post=128285"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}