{"id":103548,"date":"2024-07-26T09:52:11","date_gmt":"2024-07-26T07:52:11","guid":{"rendered":"https:\/\/www.linseis.com\/metodos-de-analise-termica\/dilatometria\/"},"modified":"2026-01-12T10:14:54","modified_gmt":"2026-01-12T09:14:54","slug":"dilatometria","status":"publish","type":"page","link":"https:\/\/www.linseis.com\/pt-pt\/metodos-de-analise-termica\/dilatometria\/","title":{"rendered":"Dilatometria"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"103548\" class=\"elementor elementor-103548 elementor-21797\" data-elementor-post-type=\"page\">\n\t\t\t\t<div class=\"elementor-element elementor-element-a3549cf e-flex e-con-boxed e-con e-parent\" data-id=\"a3549cf\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-ac41c94 elementor-widget elementor-widget-image\" data-id=\"ac41c94\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"800\" height=\"800\" src=\"https:\/\/www.linseis.com\/wp-content\/uploads\/2024\/06\/linseis_scale-top-1.svg\" class=\"attachment-large size-large wp-image-29175\" alt=\"\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-a7b7feb e-con-full e-flex e-con e-child\" data-id=\"a7b7feb\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-6100945 e-con-full e-flex e-con e-child\" data-id=\"6100945\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-cc1182c elementor-invisible elementor-widget elementor-widget-heading\" data-id=\"cc1182c\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;,&quot;_animation_delay&quot;:250}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\"><b>\n\nDilatometria\n\n<\/b><\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-6d91a43 e-con-full e-flex e-con e-child\" data-id=\"6d91a43\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-9413374 elementor-widget elementor-widget-n-carousel\" data-id=\"9413374\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;carousel_items&quot;:[{&quot;slide_title&quot;:&quot;Produkt 1&quot;,&quot;_id&quot;:&quot;d6fbcdb&quot;}],&quot;slides_to_show&quot;:&quot;1&quot;,&quot;slides_to_scroll&quot;:&quot;2&quot;,&quot;autoplay_speed&quot;:2000,&quot;slides_to_show_tablet&quot;:&quot;1&quot;,&quot;slides_to_show_mobile&quot;:&quot;1&quot;,&quot;autoplay&quot;:&quot;yes&quot;,&quot;pause_on_hover&quot;:&quot;yes&quot;,&quot;pause_on_interaction&quot;:&quot;yes&quot;,&quot;infinite&quot;:&quot;yes&quot;,&quot;speed&quot;:500,&quot;offset_sides&quot;:&quot;none&quot;,&quot;image_spacing_custom&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:10,&quot;sizes&quot;:[]},&quot;image_spacing_custom_tablet&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]},&quot;image_spacing_custom_mobile&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]}}\" data-widget_type=\"nested-carousel.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"e-n-carousel swiper\" role=\"region\" aria-roledescription=\"carousel\" aria-label=\"Karussell\" dir=\"ltr\">\n\t\t\t<div class=\"swiper-wrapper\" aria-live=\"off\">\n\t\t\t\t\t\t\t\t\t\t<div class=\"swiper-slide\" data-slide=\"1\" role=\"group\" aria-roledescription=\"slide\" aria-label=\"1 of 1\">\n\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-44441f5 e-flex e-con-boxed e-con e-child\" data-id=\"44441f5\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-4103051 elementor-widget__width-initial elementor-invisible elementor-widget elementor-widget-image\" data-id=\"4103051\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;}\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"800\" height=\"800\" src=\"https:\/\/www.linseis.com\/wp-content\/uploads\/2024\/07\/Linseis-Icons_Linien-weiss_Zeichenflaeche-1-Kopie-86-1024x1024.png\" class=\"attachment-large size-large wp-image-36269\" alt=\"\" srcset=\"https:\/\/www.linseis.com\/wp-content\/uploads\/2024\/07\/Linseis-Icons_Linien-weiss_Zeichenflaeche-1-Kopie-86-1024x1024.png 1024w, https:\/\/www.linseis.com\/wp-content\/uploads\/2024\/07\/Linseis-Icons_Linien-weiss_Zeichenflaeche-1-Kopie-86-300x300.png 300w, https:\/\/www.linseis.com\/wp-content\/uploads\/2024\/07\/Linseis-Icons_Linien-weiss_Zeichenflaeche-1-Kopie-86-150x150.png 150w, https:\/\/www.linseis.com\/wp-content\/uploads\/2024\/07\/Linseis-Icons_Linien-weiss_Zeichenflaeche-1-Kopie-86-768x768.png 768w, https:\/\/www.linseis.com\/wp-content\/uploads\/2024\/07\/Linseis-Icons_Linien-weiss_Zeichenflaeche-1-Kopie-86-1536x1536.png 1536w, https:\/\/www.linseis.com\/wp-content\/uploads\/2024\/07\/Linseis-Icons_Linien-weiss_Zeichenflaeche-1-Kopie-86-2048x2048.png 2048w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\t\t\t\t\t\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\t\t\t\t<\/div>\n\t\t\t\t\t\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>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b4a6800 elementor-widget elementor-widget-image\" data-id=\"b4a6800\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"800\" height=\"800\" src=\"https:\/\/www.linseis.com\/wp-content\/uploads\/2024\/06\/linseis_scale-bottom-1.svg\" class=\"attachment-large size-large wp-image-29171\" alt=\"\" \/>\t\t\t\t\t\t\t\t\t\t\t\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<div class=\"elementor-element elementor-element-7c8d6cc e-flex e-con-boxed e-con e-parent\" data-id=\"7c8d6cc\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-d7b7522 e-flex e-con-boxed e-con e-parent\" data-id=\"d7b7522\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-449b6fd e-con-full e-flex e-con e-child\" data-id=\"449b6fd\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-031217d elementor-invisible elementor-widget elementor-widget-wp-widget-bcn_widget\" data-id=\"031217d\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;}\" data-widget_type=\"wp-widget-bcn_widget.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"breadcrumbs\" vocab=\"https:\/\/schema.org\/\" typeof=\"BreadcrumbList\"><span property=\"itemListElement\" typeof=\"ListItem\"><a property=\"item\" typeof=\"WebPage\" title=\"Go to Linseis.\" href=\"https:\/\/www.linseis.com\/pt-pt\/\" class=\"home\" aria-current=\"page\"><span property=\"name\">Linseis<\/span><\/a><meta property=\"position\" content=\"1\"><\/span><\/div>\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<div class=\"elementor-element elementor-element-ed98f58 e-flex e-con-boxed e-con e-parent\" data-id=\"ed98f58\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-bbc47b3 e-con-full e-flex e-con e-child\" data-id=\"bbc47b3\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-71a1ec4 elementor-invisible elementor-widget elementor-widget-text-editor\" data-id=\"71a1ec4\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;,&quot;_animation_delay&quot;:500}\" 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<h2>Dilatometria<\/h2>\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-32d9053 elementor-widget elementor-widget-text-editor\" data-id=\"32d9053\" 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<b> <a href=\"https:\/\/www.linseis.com\/messgeraete\/dilatometer\/\" data-auto-event-observed=\"true\"><b>dilatometria<\/b><\/a><\/b> (DIL) \u00e9 uma t\u00e9cnica em que uma mudan\u00e7a dimensional (o comprimento ou volume) de um material sob tens\u00e3o desprez\u00edvel \u00e9 medida em fun\u00e7\u00e3o da temperatura (por exemplo, expans\u00e3o ou contra\u00e7\u00e3o) enquanto o material \u00e9 submetido a um programa de temperatura controlada numa atmosfera espec\u00edfica.<\/p><p>Ao determinar a altera\u00e7\u00e3o dimensional, \u00e9 feita uma distin\u00e7\u00e3o entre os coeficientes <strong>de expans\u00e3o linear<\/strong> e <strong>os coeficientes de expans\u00e3o espacial<\/strong>.<\/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-7d4daa8 elementor-invisible elementor-widget elementor-widget-text-editor\" data-id=\"7d4daa8\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;,&quot;_animation_delay&quot;:500}\" 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><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-15712 size-full\" src=\"https:\/\/www.linseis.com\/wp-content\/uploads\/2024\/07\/Schema-Schubstangendilatometer-Aufbau.png\" alt=\"\" width=\"940\" height=\"788\" srcset=\"https:\/\/www.linseis.com\/wp-content\/uploads\/2024\/07\/Schema-Schubstangendilatometer-Aufbau.png 940w, https:\/\/www.linseis.com\/wp-content\/uploads\/2024\/07\/Schema-Schubstangendilatometer-Aufbau-300x251.png 300w, https:\/\/www.linseis.com\/wp-content\/uploads\/2024\/07\/Schema-Schubstangendilatometer-Aufbau-768x644.png 768w\" sizes=\"(max-width: 940px) 100vw, 940px\" \/><\/p><p style=\"text-align: center;\"><em>Uma amostra vermelha num dilat\u00f3metro<\/em><\/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<div class=\"elementor-element elementor-element-8801439 e-flex e-con-boxed elementor-invisible e-con e-parent\" data-id=\"8801439\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;,&quot;animation&quot;:&quot;fadeInUp&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-4fda86f e-con-full e-flex e-con e-child\" data-id=\"4fda86f\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-fe6d621 elementor-widget elementor-widget-text-editor\" data-id=\"fe6d621\" 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><strong>Os seguintes resultados de medi\u00e7\u00e3o podem ser determinados por dilatometria:<\/strong><\/p><ul><li>Determina\u00e7\u00e3o do coeficiente de expans\u00e3o t\u00e9rmica (CTE)<\/li><li><a href=\"https:\/\/www.linseis.com\/pt-pt\/?page_id=103486\"><strong>Expans\u00e3o t\u00e9rmica linear (\u0394L)<\/strong><\/a><\/li><li>Temperaturas de sinteriza\u00e7\u00e3o e etapas de sinteriza\u00e7\u00e3o<\/li><li>Determina\u00e7\u00e3o da <a href=\"https:\/\/www.linseis.com\/pt-pt\/?p=103212\">\n  <strong>transi\u00e7\u00e3o v\u00edtrea <sub>(Tg<\/sub>)<\/strong>\n<\/a><\/li><li><a href=\"https:\/\/www.linseis.com\/pt-pt\/?p=103281\"><strong>Mudan\u00e7a de fase<\/strong><\/a><\/li><li>Otimiza\u00e7\u00e3o dos processos de cozedura<\/li><li>Altera\u00e7\u00f5es de volume (coeficiente de expans\u00e3o da sala)<\/li><li>Sinteriza\u00e7\u00e3o com controlo de velocidade (RCS)<\/li><li>Decomposi\u00e7\u00e3o<\/li><li>Altera\u00e7\u00e3o da densidade<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-a0a9aac e-con-full e-flex e-con e-child\" data-id=\"a0a9aac\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-53ea4ef elementor-widget elementor-widget-text-editor\" data-id=\"53ea4ef\" 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<h2>Coeficiente de expans\u00e3o linear CTE<\/h2>\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-d38f832 elementor-widget elementor-widget-text-editor\" data-id=\"d38f832\" 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>O coeficiente de expans\u00e3o linear \u00e9 tomado como uma propriedade para a altera\u00e7\u00e3o do comprimento. A amostra \u00e9 colocada num suporte de amostras, que \u00e9 empurrado para um forno. Uma haste de press\u00e3o feita do mesmo material que o suporte da amostra (vidro de quartzo, \u00f3xido de alum\u00ednio) transfere a expans\u00e3o t\u00e9rmica da amostra para um transdutor de deslocamento, que mede o deslocamento. O deslocamento \u00e9 medido em formato anal\u00f3gico ou digital.   <\/p><p>As dimens\u00f5es geom\u00e9tricas dos materiais alteram-se com as mudan\u00e7as de temperatura. Isto pode ser descrito com o seguinte coeficiente linear de expans\u00e3o t\u00e9rmica (CTE): <\/p><p><strong>CTE linear = \u0394<\/strong><strong>L-1\/\u0394<\/strong><strong>T-1\/L<\/strong><\/p><p>\u0394L representa a varia\u00e7\u00e3o do comprimento causada por uma varia\u00e7\u00e3o da temperatura (\u0394T) no comprimento (L) da amostra.<\/p><p>O transdutor de deslocamento est\u00e1 firmemente ligado \u00e0 refer\u00eancia. Como a refer\u00eancia e a haste de press\u00e3o tamb\u00e9m s\u00e3o estendidas da mesma forma durante o aquecimento, a expans\u00e3o da amostra \u00e9 medida em rela\u00e7\u00e3o ao material da refer\u00eancia. A expans\u00e3o t\u00e9rmica real da amostra \u00e9 ent\u00e3o igual ao valor medido pelo transdutor de deslocamento mais a expans\u00e3o de um peda\u00e7o de material de refer\u00eancia do mesmo comprimento que a amostra.  <\/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<div class=\"elementor-element elementor-element-cdefdb7 e-con-full e-flex e-con e-child\" data-id=\"cdefdb7\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-dca24fd elementor-widget elementor-widget-text-editor\" data-id=\"dca24fd\" 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<h2>Dilatometria \u00f3tica<\/h2>\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-d37c58e elementor-widget elementor-widget-text-editor\" data-id=\"d37c58e\" 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 dilatometria \u00f3tica pode ser utilizada para analisar processos de sinteriza\u00e7\u00e3o e a expans\u00e3o linear t\u00e9rmica de materiais anisotr\u00f3picos e fr\u00e1geis em particular, bem como amostras com geometrias complicadas. O ponto de amolecimento e as temperaturas de fus\u00e3o dos materiais tamb\u00e9m podem ser determinados utilizando a determina\u00e7\u00e3o termomec\u00e2nica sem contacto. <\/p><p><strong>Como \u00e9 que a dilatometria \u00f3tica funciona num aparelho de medi\u00e7\u00e3o?<\/strong><\/p><p>Na an\u00e1lise termo-\u00f3tica com um dilat\u00f3metro equipado com uma c\u00e2mara, a amostra \u00e9 irradiada com luz de um lado e as sombras s\u00e3o registadas no outro lado. Um computador utiliza os dados obtidos para calcular a altera\u00e7\u00e3o do comprimento da amostra. <\/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-69f7499 elementor-invisible elementor-widget elementor-widget-text-editor\" data-id=\"69f7499\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;,&quot;_animation_delay&quot;:500}\" 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><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-5661 size-large aligncenter\" src=\"https:\/\/www.linseis.com\/wp-content\/uploads\/2024\/07\/Ash-melting-microscope-1024x802.jpg\" alt=\"\" width=\"1024\" height=\"802\" srcset=\"https:\/\/www.linseis.com\/wp-content\/uploads\/2024\/07\/Ash-melting-microscope-1024x802.jpg 1024w, https:\/\/www.linseis.com\/wp-content\/uploads\/2024\/07\/Ash-melting-microscope-300x235.jpg 300w, https:\/\/www.linseis.com\/wp-content\/uploads\/2024\/07\/Ash-melting-microscope-768x602.jpg 768w, https:\/\/www.linseis.com\/wp-content\/uploads\/2024\/07\/Ash-melting-microscope-1536x1203.jpg 1536w, https:\/\/www.linseis.com\/wp-content\/uploads\/2024\/07\/Ash-melting-microscope-2048x1605.jpg 2048w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/p><p style=\"text-align: center;\"><em>Dilatometria \u00f3tica &#8211; imagem a preto e branco durante um processo de aquecimento<\/em><\/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<div class=\"elementor-element elementor-element-5a584c2 e-con-full e-flex e-con e-child\" data-id=\"5a584c2\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-2111823 elementor-widget elementor-widget-text-editor\" data-id=\"2111823\" 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<h2>As normas seguintes referem-se a este m\u00e9todo:<\/h2>\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-ef9903f elementor-widget elementor-widget-text-editor\" data-id=\"ef9903f\" 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><strong>ASTM E831<\/strong> &#8211; M\u00e9todo de ensaio padr\u00e3o para a expans\u00e3o t\u00e9rmica linear de materiais s\u00f3lidos por an\u00e1lise termomec\u00e2nica.<\/p><p><strong>ASTM D696<\/strong> &#8211; Este m\u00e9todo de ensaio abrange a determina\u00e7\u00e3o do coeficiente de expans\u00e3o t\u00e9rmica linear para materiais pl\u00e1sticos com um coeficiente de expans\u00e3o superior a 1 \u00b5m\/(m.\u00b0C) utilizando um dilat\u00f3metro para s\u00edlica v\u00edtrea.<\/p><p><strong>ASTM E228<\/strong> &#8211; M\u00e9todo de ensaio normalizado para a expans\u00e3o t\u00e9rmica linear de materiais s\u00f3lidos com um dilat\u00f3metro de haste de cisalhamento.<\/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<\/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>Dilatometria Dilatometria A dilatometria (DIL) \u00e9 uma t\u00e9cnica em que uma mudan\u00e7a dimensional (o comprimento ou volume) de um material sob tens\u00e3o desprez\u00edvel \u00e9 medida em fun\u00e7\u00e3o da temperatura (por exemplo, expans\u00e3o ou contra\u00e7\u00e3o) enquanto o material \u00e9 submetido a um programa de temperatura controlada numa atmosfera espec\u00edfica. Ao determinar a altera\u00e7\u00e3o dimensional, \u00e9 feita [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":0,"parent":103513,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"class_list":["post-103548","page","type-page","status-publish","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.linseis.com\/pt-pt\/wp-json\/wp\/v2\/pages\/103548","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.linseis.com\/pt-pt\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.linseis.com\/pt-pt\/wp-json\/wp\/v2\/types\/page"}],"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=103548"}],"version-history":[{"count":0,"href":"https:\/\/www.linseis.com\/pt-pt\/wp-json\/wp\/v2\/pages\/103548\/revisions"}],"up":[{"embeddable":true,"href":"https:\/\/www.linseis.com\/pt-pt\/wp-json\/wp\/v2\/pages\/103513"}],"wp:attachment":[{"href":"https:\/\/www.linseis.com\/pt-pt\/wp-json\/wp\/v2\/media?parent=103548"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}