{"id":128249,"date":"2026-05-27T10:53:01","date_gmt":"2026-05-27T08:53:01","guid":{"rendered":"https:\/\/www.linseis.com\/unkategorisiert\/high-entropy-alloys-heas-thermal-analysis-and-thermophysical-properties\/"},"modified":"2026-05-27T11:07:44","modified_gmt":"2026-05-27T09:07:44","slug":"high-entropy-alloys-heas-thermal-analysis-and-thermophysical-properties","status":"publish","type":"post","link":"https:\/\/www.linseis.com\/en\/wiki\/high-entropy-alloys-heas-thermal-analysis-and-thermophysical-properties\/","title":{"rendered":"High Entropy Alloys (HEAs): Thermal analysis and thermophysical properties"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"128249\" class=\"elementor elementor-128249 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 page.&quot;,&quot;marker_view&quot;:&quot;numbers&quot;,&quot;minimize_box&quot;:&quot;yes&quot;,&quot;minimized_on&quot;:&quot;tablet&quot;,&quot;hierarchical_view&quot;:&quot;yes&quot;,&quot;min_height&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]},&quot;min_height_tablet&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]},&quot;min_height_mobile&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]}}\" data-widget_type=\"table-of-contents.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-toc__header\">\n\t\t\t\t\t\t<h4 class=\"elementor-toc__header-title\">\n\t\t\t\tTable of contents\t\t\t<\/h4>\n\t\t\t\t\t\t\t\t\t\t<div class=\"elementor-toc__toggle-button elementor-toc__toggle-button--expand\" role=\"button\" tabindex=\"0\" aria-controls=\"elementor-toc__97683da\" aria-expanded=\"true\" aria-label=\"Open table of 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>Today, High Entropy Alloys (HEAs) are regarded as the central material class for high-performance applications in <a href=\"https:\/\/www.linseis.com\/en\/applications\/automotive-aviation-aerospace\/\"><strong>aerospace<\/strong><\/a>power generation and turbine and reactor construction. Due to their complex, multi-component composition, they exhibit unique combinations of high strength, temperature and oxidation resistance. <a href=\"https:\/\/www.linseis.com\/en\/wiki\/oxidation-induction-time\/\"><strong>oxidation resistance<\/strong><\/a> &#8211; but at the same time they are extremely difficult to characterize. Precise thermal analysis and the determination of thermophysical properties are therefore crucial enablers for the targeted development and simulation of HEAs and their transfer to industrial applications (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\">What are High Entropy Alloys?<\/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>High entropy alloys &#8211; also known as <em>multi-principal element alloys<\/em> or <em>complex concentrated alloys<\/em> &#8211; typically consist of at least five main elements in the range of 5-35 at.%. In contrast to classical alloys with a dominant base element (e.g. Ni, Co or Fe conductive metal), the properties of HEAs are determined by the mixing and entropy effect of several elements (Odetola et al., 2024). The high configurational entropy often stabilizes simple solid solution phases (FCC, BCC, HCP) and leads to a variety of &#8220;core effects&#8221; such as strong lattice distortion, sluggish diffusion and synergistic property effects (&#8220;cocktail effect&#8221;).<\/p><p>HEAs are particularly interesting for high-performance applications because they offer an exceptional balance of strength, toughness, temperature stability and often also improved oxidation and wear resistance (Odetola et al., 2024; Liu et al., 2023). Typical areas of application are turbine blades, reactor and combustion chamber components as well as high-temperature structural components, where conventional superalloys reach their limits. <\/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=\"128245\" 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=\"Scientific infographic showing FCC, BCC, and HCP crystal structures in high entropy alloys with multi-element atomic lattices and visualization of lattice distortion caused by complex alloy compositions.\"\/>\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>Visualization created with AI-based image generation.<\/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\">Why thermal analysis is crucial for 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>Dealing with multi-component systems generates extremely complex, sometimes vaguely defined phase diagrams. Without sound thermal analysis, phase transitions, stability ranges and reaction behavior can hardly be reliably predicted. Thermal analysis therefore provides the basis for a reliable material evaluation and for the validation of thermodynamic models (CALPHAD, entropy calculations) (Odetola et al., 2024).  <\/p><p>The temperature dependence of phase stability and diffusion behavior is particularly critical for HEAs:<\/p><ul><li><strong>Phase stability<\/strong> in HEAs is largely dominated by the entropy contribution; with increasing temperature, simple solid solutions often stabilize at the expense of complex intermetallic or Laves phases (Odetola et al., 2024).<\/li><li><strong>Diffusion behavior<\/strong> is significantly delayed in HEAs (&#8220;sluggish diffusion&#8221;), which favors the formation of fine, stable nanoprecipitates and high creep stability (Odetola et al., 2024).<\/li><li><strong>Reaction behavior and oxidation<\/strong> are strongly dependent on temperature, atmosphere and composition; thermal analysis under inert gas or air provides decisive information on oxidation and decomposition processes (e.g. by STA measurements).<\/li><\/ul><p>Without thermal analysis, temperature stability, <a href=\"https:\/\/www.linseis.com\/en\/wiki\/phase-change-analysis-with-dsc\/\"><strong>phase behavior<\/strong><\/a> and thus also the process windows for casting, heat treatment or additive <a href=\"https:\/\/www.linseis.com\/en\/wiki\/advancing-additive-manufacturing-with-thermal-analysis\/\"><strong>additive manufacturing<\/strong><\/a> cannot be reliably defined &#8211; a reliable material evaluation is then not possible (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\">Relevant measurement methods for 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>Differential Scanning Calorimetry (DSC)<\/h3><p><a href=\"https:\/\/www.linseis.com\/en\/instruments\/differential-scanning-calorimeter-dsc\/\"><strong>DSC<\/strong><\/a> is a key technique for the determination of phase transitions, melting and solidification curves as well as heat capacity in HEAs. The metallurgy of HEAs often shows several superpositions of phase transformations (e.g. FCC-\u2194-BCC, formation or dissolution of Laves or \u03b3&#8217; phases), which show up in DSC curves as <a href=\"https:\/\/www.linseis.com\/en\/wiki\/endothermic-vs-exothermic-reactions\/\"><strong>endothermic or exothermic peaks<\/strong><\/a> (Odetola et al., 2024; Liu et al., 2023). <\/p><p>By integrating DSC curves, the molar heat capacity <a href=\"https:\/\/www.linseis.com\/en\/properties\/specific-heat-capacity\/\"><strong>heat capacity<\/strong><\/a> can be determined, which in turn provides insights into the thermal entropy and stability of the solid solution phases (Odetola et al., 2024). DSC-based characterization also supports the selection of parameters for heat treatment processes (annealing, aging) and the identification of solution annealing temperatures for \u03b3&#8217; or Laves phases (Liu et al., 2023). <\/p><h3>Simultaneous thermal analysis (STA \/ TGA-DSC)<\/h3><p><a href=\"https:\/\/www.linseis.com\/en\/instruments\/thermal-analysis\/simultaneous-thermal-analyzer-tga-dsc\/\"><strong>STA measurements<\/strong><\/a> (combined <a href=\"https:\/\/www.linseis.com\/en\/instruments\/tga-thermogravimetry\/\"><strong>thermogravimetry<\/strong><\/a> and calorimetric analysis) provide mass and heat data at the same time and are useful for assessing the <a href=\"https:\/\/www.linseis.com\/en\/wiki\/measurement-of-thermal-stability\/\"><strong>thermal stability<\/strong><\/a> and oxidation behavior of HEAs. In HEAs, mass (e.g. due to oxidation or decomposition reactions) and phase state often change in the same temperature range, so that a coupled measurement makes interpretation much easier (Odetola et al., 2024; Liu et al., 2023). <\/p><p>Typical STA applications:<\/p><ul><li>Determination of <strong>oxidation starting points<\/strong> and <strong>mass loss<\/strong> at high temperatures (e.g. 800-1200 \u00b0C).<\/li><li>Identification of <strong>decomposition or desorption effects<\/strong>, e.g. in coatings or low-oxide alloys.<\/li><li>Determination of <strong>thermal stability<\/strong> and <strong>equilibrium temperatures<\/strong> for phase formation.<\/li><\/ul><p>The STA thus provides a direct database for the selection of shielding gas or air atmospheres in manufacturing and operating processes.<\/p><h3>Laser Flash Analysis (LFA)<\/h3><p>The <a href=\"https:\/\/www.linseis.com\/en\/instruments\/thermal-conductivity\/lfa-laser-flash-analyzer\/\"><strong>laser flash analysis<\/strong><\/a> enables the determination of thermal diffusivity and &#8211; derived from this &#8211; the <a href=\"https:\/\/www.linseis.com\/en\/properties\/thermal-conductivity\/\"><strong>thermal conductivity<\/strong><\/a> over a wide temperature range. HEAs often show unusual mixtures of moderate to low thermal conductivity and high mechanical stability, which is particularly interesting for thermal design (Liu et al., 2023; Odetola et al., 2024). <\/p><p>The LFA method is particularly suitable for dense, homogeneous HEA samples and provides important input data for thermal simulations:<\/p><ul><li><strong>Thermal diff<\/strong> usivity describes how quickly a temperature field is established in the sample.<\/li><li><strong>Thermal conductivity<\/strong> (\u03bb) is usually calculated from diffusivity, specific heat and density and is decisive for the design of cooling strategies (e.g. in turbine blades or reactor components).<\/li><\/ul><p>The combination of DSC (for cpc_pcp) and LFA (for \\(a\\)) enables a complete, temperature-dependent thermophysical characterization of HEAs.<\/p><h3>Dilatometry<\/h3><p>The <a href=\"https:\/\/www.linseis.com\/en\/instruments\/dilatometer\/\"><strong>dilatometry<\/strong><\/a> measures the change in length of HEA samples with temperature and thus provides direct information on the <a href=\"https:\/\/www.linseis.com\/en\/wiki\/determination-of-the-cte-density\/\"><strong>thermal expansion (CTE)<\/strong><\/a> and phase transformations. HEAs with complex phase landscapes (FCC\/BCC mixed structures, eutectic or lamellar microstructures) often show nonlinear CTE curves, which appear as kinks or plateaus in dilatometer data (Liu et al., 2023; Odetola et al., 2024). <\/p><p>Typical applications:<\/p><ul><li>Determination of the <strong>coefficient of linear expansion (CTE)<\/strong> in relevant temperature ranges.<\/li><li>Identification of <strong>phase transformations<\/strong> (e.g. BCC formation, Laves sheath, \u03b3&#8217;-solution).<\/li><li>Investigation of <strong>sintering and diffusion processes<\/strong>, especially in additively manufactured or compacted HEA samples.<\/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=\"128246\" 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=\"Scientific infographic illustrating DSC, STA, and LFA thermal analysis methods for high entropy alloys, including phase transformations, oxidation behavior, thermal stability, diffusivity, and thermal conductivity measurements at elevated temperatures.\"\/>\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>Visualization created with AI-based image generation.<\/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\">Important thermophysical properties of 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>HEAs combine a variety of thermophysical properties that result directly from their multi-component structure and the aforementioned &#8220;core effects&#8221;:<\/p><ul><li><strong>Thermal conductivity<\/strong> often low to moderate, due to disturbed heat conduction pathways and increased phonon scattering (Liu et al., 2023).<\/li><li><strong>Thermal diffusivity<\/strong> can vary depending on the microstructure; lamellar or nanoscale phases are generally less thermally conductive.<\/li><li><strong>Thermal\/specific heat<\/strong> is determined via DSC and is used to calculate thermal entropy and Gibbs energy (Odetola et al., 2024).<\/li><li><strong>Thermal expansion (CTE)<\/strong> is frequency- and stress-dependent and can differ greatly from conventional alloys in HEAs.<\/li><li><strong>Oxidation resistance<\/strong> is largely determined by the formation of complex, multi-component oxide layers, which exhibit better long-term stability in many HEAs than in classical superalloys (e.g. Ni-based systems) (Liu et al., 2023).<\/li><\/ul><p><br>Refractory HEAs (RHEAs) in particular show a common pattern: high strength and creep resistance combined with moderate to low thermal conductivity &#8211; a very attractive profile for high-temperature components (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\">Typical applications of 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>The outstanding thermal and mechanical properties of HEAs make them very attractive for high-performance applications:<\/p><ul><li><strong>Turbines &#038; high temperature components<\/strong>: HEAs are being investigated for turbine blades, combustor components and high-temperature piping; their combination of high strength and oxidation-resistant surface is advantageous over classical superalloys (Liu et al., 2023).<\/li><li><strong>Nuclear technology<\/strong>: The temperature- and radiation-stable structure of many HEAs and their improved resistance to corrosion and oxidation in aggressive environments make them interesting for fuel cladding and structural components (Odetola et al., 2024).<\/li><li><strong>Wear-resistant coatings<\/strong>: HEA coatings show excellent thermal stability and high wear resistance, e.g. in high temperature tribology applications (Liu et al., 2023).<\/li><li><strong>Energy systems<\/strong>: High-temperature HEAs are being researched for high-temperature heat storage, reactor components and turbomachinery in high-temperature power plants and hypersonic drives (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=\"128247\" 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=\"Scientific visualization of high entropy alloy applications in turbine and reactor systems, showing high-temperature components, oxidation resistance, thermal stability, and advanced microstructures for extreme industrial environments.\"\/>\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>Visualization created with AI-based image generation.<\/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\">Measurement requirements in the laboratory  <\/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>The characterization of HEAs in the laboratory requires a variety of specific requirements:<\/p><ul><li><strong>High temperatures<\/strong> (&gt;1000 \u00b0C, sometimes up to 1500-1600 \u00b0C) are necessary to capture relevant phase and diffusion ranges.<\/li><li><strong>Inert gas and vacuum conditions<\/strong> are essential to prevent unwanted oxidation or contamination.<\/li><li><strong>Sample preparation<\/strong> must ensure maximum homogeneity, as thermal analysis relies on chemically homogeneous and structurally uniform samples.<\/li><li><strong>Reproducibility<\/strong> is crucial; many HEAs exhibit phase behavior that is highly dependent on temperature and time profiles, which is why standardized measurement protocols and automated systems are required.<\/li><\/ul><p>A combination of DSC, STA, LFA and dilatometry measurements provides a complete, multidimensional characterization, which is essential for the development and validation of 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\">Conclusion<\/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>Thermal analysis is a key driver for the development and industrial use of high-entropy alloys. Without precise thermal and thermophysical data, phase transitions, temperature stability and long-term behavior of HEAs can neither be simulated nor safely transferred to technical applications. The combination of several measurement methods &#8211; DSC, STA, LFA, dilatometry &#8211; provides a comprehensive view of the thermal dimension of HEAs and supports the development of high-temperature components in aerospace, energy and high-performance metallurgical systems.  <\/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\">Bibliography<\/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>High-temperature properties and thermodynamic design of advanced High Entropy Alloys<\/em>. In: <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 modeling strategies for advanced materials applications<\/em>. In: <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>High entropy alloys (HEAs) are now considered a key material class for high-performance applications in aerospace, power generation, turbines and reactor construction. Due to their complex, multi-component composition, they exhibit unique combinations of high strength, temperature and oxidation resistance &#8211; but at the same time they are extremely difficult to characterize.   <\/p>\n","protected":false},"author":3,"featured_media":128248,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[106],"tags":[],"class_list":["post-128249","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-wiki"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.linseis.com\/en\/wp-json\/wp\/v2\/posts\/128249","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.linseis.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.linseis.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.linseis.com\/en\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/www.linseis.com\/en\/wp-json\/wp\/v2\/comments?post=128249"}],"version-history":[{"count":0,"href":"https:\/\/www.linseis.com\/en\/wp-json\/wp\/v2\/posts\/128249\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.linseis.com\/en\/wp-json\/wp\/v2\/media\/128248"}],"wp:attachment":[{"href":"https:\/\/www.linseis.com\/en\/wp-json\/wp\/v2\/media?parent=128249"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.linseis.com\/en\/wp-json\/wp\/v2\/categories?post=128249"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.linseis.com\/en\/wp-json\/wp\/v2\/tags?post=128249"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}