{"id":10121,"date":"2020-12-29T22:20:45","date_gmt":"2020-12-29T22:20:45","guid":{"rendered":"https:\/\/nanovea.com\/?p=10121"},"modified":"2025-05-22T20:48:07","modified_gmt":"2025-05-22T20:48:07","slug":"in-situ-medida-de-desgaste-em-alta-temperatura","status":"publish","type":"post","link":"https:\/\/nanovea.com\/pt\/in-situ-medida-de-desgaste-em-alta-temperatura\/","title":{"rendered":"Medi\u00e7\u00e3o de Desgaste In Situ em Alta Temperatura"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"10121\" class=\"elementor elementor-10121\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-671fe32 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"671fe32\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-78c476f\" data-id=\"78c476f\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-79a97ac elementor-widget elementor-widget-heading\" data-id=\"79a97ac\" data-element_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\">MEDI\u00c7\u00c3O DE DESGASTE IN SITU\nEM ALTA TEMPERATURA<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-56428aa elementor-widget elementor-widget-heading\" data-id=\"56428aa\" data-element_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\">USANDO O TRIB\u00d4METRO<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-737df0b elementor-widget elementor-widget-image\" data-id=\"737df0b\" data-element_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=\"1024\" height=\"302\" src=\"https:\/\/nanovea.com\/wp-content\/uploads\/2020\/12\/IN-SITU-WEAR-MEASUREMENT-Aerospace-Tribology.png\" class=\"attachment-large size-large wp-image-9629\" alt=\"Trib\u00f4metro Aeroespacial do IN-SITU WEAR MEASUREMENT\" \/>\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<div class=\"elementor-element elementor-element-80ac3eb elementor-widget elementor-widget-heading\" data-id=\"80ac3eb\" data-element_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\">Preparado por<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c5e6887 elementor-widget elementor-widget-heading\" data-id=\"c5e6887\" data-element_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\">Duanjie Li, PhD<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-4a68714 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"4a68714\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-4ed1cf2\" data-id=\"4ed1cf2\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-5d12b4b elementor-widget elementor-widget-heading\" data-id=\"5d12b4b\" data-element_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\">INTRODU\u00c7\u00c3O<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a31024a elementor-widget elementor-widget-text-editor\" data-id=\"a31024a\" data-element_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 Transformador Diferencial Linear Vari\u00e1vel (LVDT) \u00e9 um tipo de transformador el\u00e9trico robusto usado para medir o deslocamento linear. Tem sido amplamente utilizado em diversas aplica\u00e7\u00f5es industriais, incluindo turbinas de pot\u00eancia, hidr\u00e1ulica, automa\u00e7\u00e3o, aeronaves, sat\u00e9lites, reatores nucleares, e muitas outras.<\/p>\n<p>Neste estudo, apresentamos os add-ons de LVDT e m\u00f3dulos de alta temperatura do NANOVEA <a href=\"https:\/\/nanovea.com\/tribometers\/\">Trib\u00f4metro<\/a> que permitem que a altera\u00e7\u00e3o da profundidade da trilha de desgaste da amostra testada seja medida durante o processo de desgaste em temperaturas elevadas. Isso permite aos usu\u00e1rios correlacionar diferentes est\u00e1gios do processo de desgaste com a evolu\u00e7\u00e3o do COF, o que \u00e9 fundamental para melhorar a compreens\u00e3o fundamental do mecanismo de desgaste e das caracter\u00edsticas tribol\u00f3gicas dos materiais para aplica\u00e7\u00f5es em altas temperaturas.<\/p>\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<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-8eb27be elementor-reverse-mobile elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"8eb27be\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-1b29ba9\" data-id=\"1b29ba9\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-f364dac elementor-reverse-mobile elementor-section-full_width elementor-section-height-default elementor-section-height-default\" data-id=\"f364dac\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-no\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-69ab210\" data-id=\"69ab210\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-bf7fda4 elementor-widget elementor-widget-text-editor\" data-id=\"bf7fda4\" data-element_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>OBJETIVO DA MEDI\u00c7\u00c3O<\/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-0881b1b elementor-widget elementor-widget-text-editor\" data-id=\"0881b1b\" data-element_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><i>Neste estudo, gostar\u00edamos de mostrar a capacidade do Trib\u00f4metro NANOVEA T50 para monitorar in situ a evolu\u00e7\u00e3o do processo de desgaste dos materiais a temperaturas elevadas.<\/i><\/p><p><i>O processo de desgaste da cer\u00e2mica de silicato de alumina a diferentes temperaturas \u00e9 simulado de forma controlada e monitorada.<\/i><\/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-53aac9c elementor-widget elementor-widget-spacer\" data-id=\"53aac9c\" data-element_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-ac9a29e elementor-widget elementor-widget-text-editor\" data-id=\"ac9a29e\" data-element_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>NANOVEA<\/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-d3e3fa5 elementor-widget elementor-widget-text-editor\" data-id=\"d3e3fa5\" data-element_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>T50<\/p>\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<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-f74e451\" data-id=\"f74e451\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-cc8ea1d elementor-widget elementor-widget-image\" data-id=\"cc8ea1d\" data-element_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\t<a href=\"https:\/\/nanovea.com\/instruments\/t50\/\">\n\t\t\t\t\t\t\t<img decoding=\"async\" width=\"705\" height=\"695\" src=\"https:\/\/nanovea.com\/wp-content\/uploads\/2020\/12\/Robust-Tribometer-Nanovea-T50.png\" class=\"elementor-animation-grow attachment-large size-large wp-image-9876\" alt=\"\" \/>\t\t\t\t\t\t\t\t<\/a>\n\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<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-232b958 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"232b958\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-247fa85\" data-id=\"247fa85\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-cf6da99 elementor-widget elementor-widget-heading\" data-id=\"cf6da99\" data-element_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\">PROCEDIMENTO DE TESTE<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0bb13fc elementor-widget elementor-widget-text-editor\" data-id=\"0bb13fc\" data-element_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 comportamento tribol\u00f3gico, por exemplo, coeficiente de atrito, COF e resist\u00eancia ao desgaste das placas cer\u00e2micas de silicato de alumina foi avaliado pelo Trib\u00f4metro NANOVEA. A placa cer\u00e2mica de silicato de alumina foi aquecida por um forno desde a temperatura ambiente, RT, at\u00e9 temperaturas elevadas (400\u00b0C e 800\u00b0C), seguido pelos testes de desgaste a tais temperaturas.\u00a0<\/p><p><span style=\"color: var( --e-global-color-text );\">Para compara\u00e7\u00e3o, os testes de desgaste foram realizados quando a amostra esfriou de 800\u00b0C para 400\u00b0C e depois para a temperatura ambiente. Uma ponta esf\u00e9rica AI2O3 (6mm de di\u00e2metro, grau 100) foi aplicada contra as amostras testadas. O COF, a profundidade de desgaste e a temperatura foram monitorados in situ.<\/span><\/p>\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<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-e62194a elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"e62194a\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-fc45574\" data-id=\"fc45574\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-67a742f elementor-widget elementor-widget-heading\" data-id=\"67a742f\" data-element_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\"><i>PAR\u00c2METROS DE TESTE<\/i><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7df685c elementor-widget elementor-widget-heading\" data-id=\"7df685c\" data-element_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\">da medi\u00e7\u00e3o pin-on-disk<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-87220b3 elementor-widget elementor-widget-image\" data-id=\"87220b3\" data-element_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=\"783\" height=\"150\" src=\"https:\/\/nanovea.com\/wp-content\/uploads\/2020\/12\/Test-parameters-of-the-pin-on-disk-measurement-09.png\" class=\"attachment-large size-large wp-image-9647\" 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<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-6ea7c12\" data-id=\"6ea7c12\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-27fa479 elementor-widget elementor-widget-image\" data-id=\"27fa479\" data-element_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 loading=\"lazy\" decoding=\"async\" width=\"461\" height=\"436\" src=\"https:\/\/nanovea.com\/wp-content\/uploads\/2020\/12\/Tribometer-Sample-LVDT.png\" class=\"attachment-large size-large wp-image-9644\" alt=\"Trib\u00f4metro LVDT Amostra\" \/>\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<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-daca6c8 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"daca6c8\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-b20ea5a\" data-id=\"b20ea5a\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-7ae56c2 elementor-widget elementor-widget-text-editor\" data-id=\"7ae56c2\" data-element_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 taxa de desgaste, K, foi avaliada usando a f\u00f3rmula K=V\/(Fxs)=A\/(Fxn), onde V \u00e9 o volume gasto, F \u00e9 a carga normal, s \u00e9 a dist\u00e2ncia de deslizamento, A \u00e9 a \u00e1rea da se\u00e7\u00e3o transversal da pista de desgaste, e n \u00e9 o n\u00famero de revolu\u00e7\u00e3o. A rugosidade da superf\u00edcie e os perfis da pista de desgaste foram avaliados pelo Perfurador \u00d3ptico NANOVEA, e a morfologia da pista de desgaste foi examinada usando um microsc\u00f3pio \u00f3tico.<\/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-449eb71 elementor-widget elementor-widget-heading\" data-id=\"449eb71\" data-element_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\">RESULTADOS &amp; DISCUSS\u00c3O<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-97191d5 elementor-widget elementor-widget-text-editor\" data-id=\"97191d5\" data-element_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 COF e a profundidade da pista de desgaste registrados in situ s\u00e3o mostrados no FIGURA 1 e FIGURA 2, respectivamente. No FIGURA 1, \"-I\" indica o teste realizado quando a temperatura foi aumentada de RT para uma temperatura elevada. O \"-D\" representa a diminui\u00e7\u00e3o da temperatura a partir de uma temperatura mais alta de 800\u00b0C.<\/p><p><span style=\"color: var( --e-global-color-text );\">Como mostrado no FIGURA 1, as amostras testadas em diferentes temperaturas exibem um COF compar\u00e1vel de ~0,6 ao longo das medi\u00e7\u00f5es. Um COF t\u00e3o elevado leva a um processo de desgaste acelerado que cria uma quantidade substancial de detritos. A profundidade da pista de desgaste foi monitorada durante os testes de desgaste por LVDT, como mostrado na FIGURA 2. Os testes realizados \u00e0 temperatura ambiente antes do aquecimento da amostra e ap\u00f3s o resfriamento da amostra mostram que a placa cer\u00e2mica de silicato de alumina apresenta um processo de desgaste progressivo em RT, a profundidade da pista de desgaste aumenta gradualmente durante todo o teste de desgaste para ~170 e ~150 \u03bcm, respectivamente.\u00a0<\/span><\/p><p><span style=\"color: var( --e-global-color-text );\">Em compara\u00e7\u00e3o, os testes de desgaste em temperaturas elevadas (400\u00b0C e 800\u00b0C) apresentam um comportamento de desgaste diferente - a profundidade da pista de desgaste aumenta prontamente no in\u00edcio do processo de desgaste, e diminui \u00e0 medida que o teste continua. A profundidade da pista de desgaste para testes realizados em temperaturas 400\u00b0C-I, 800\u00b0C e 400\u00b0C-D \u00e9 de ~140, ~350 e ~210 \u03bcm, respectivamente.<\/span><\/p>\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<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-383bb84 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"383bb84\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-78a42f9\" data-id=\"78a42f9\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-159074a elementor-widget elementor-widget-image\" data-id=\"159074a\" data-element_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 loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"785\" src=\"https:\/\/nanovea.com\/wp-content\/uploads\/2020\/12\/Coefficient-of-Friction-during-pin-on-desk-Tests-at-different-temperatures.png\" class=\"attachment-large size-large wp-image-9954\" alt=\"COF durante os testes pin-on-desk Testes em diferentes temperaturas\" \/>\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<div class=\"elementor-element elementor-element-54788e7 elementor-widget elementor-widget-heading\" data-id=\"54788e7\" data-element_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\"><b><i>FIGURA 1. <\/i><\/b>\n<span>Coeficiente de Fric\u00e7\u00e3o durante os testes pin-on-disk a diferentes temperaturas<\/span><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-f8b4657\" data-id=\"f8b4657\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-1662bb7 elementor-widget elementor-widget-image\" data-id=\"1662bb7\" data-element_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 loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"799\" src=\"https:\/\/nanovea.com\/wp-content\/uploads\/2020\/12\/Evolution-of-wear-track-depth-of-the-alumina-silicate-ceramic-plate-at-different-temperatures.png\" class=\"attachment-large size-large wp-image-9955\" alt=\"Desgaste da placa cer\u00e2mica de silicato de alumina a diferentes temperaturas\" \/>\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<div class=\"elementor-element elementor-element-7b1b5d2 elementor-widget elementor-widget-heading\" data-id=\"7b1b5d2\" data-element_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\"><b><i>FIGURA 2. <\/i><\/b>\n<span>Evolu\u00e7\u00e3o da profundidade da pista de desgaste da placa cer\u00e2mica de silicato de alumina a diferentes temperaturas<\/span> \n<br style=\"line-height: normal;text-align: -webkit-auto\">\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-88e7033 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"88e7033\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-7458112\" data-id=\"7458112\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-a5d78cb elementor-widget elementor-widget-text-editor\" data-id=\"a5d78cb\" data-element_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 taxa m\u00e9dia de desgaste e a profundidade da pista de desgaste das placas cer\u00e2micas de silicato de alumina em diferentes temperaturas foram medidas usando <b><i>NANOVEA<\/i><\/b> Profiler \u00d3ptico, conforme resumido em <b><i>FIGURA 3<\/i><\/b>. A profundidade da pista de desgaste est\u00e1 de acordo com o registrado usando LVDT. A placa cer\u00e2mica de silicato de alumina apresenta uma taxa de desgaste substancialmente aumentada de ~0,5 mm3\/Nm a 800\u00b0C, em compara\u00e7\u00e3o com as taxas de desgaste abaixo de 0,2 mm3\/N a temperaturas abaixo de 400\u00b0C. A placa cer\u00e2mica de silicato de alumina n\u00e3o apresenta propriedades mec\u00e2nicas\/tribol\u00f3gicas significativamente melhoradas ap\u00f3s o curto processo de aquecimento, possuindo uma taxa de desgaste compar\u00e1vel antes e depois do tratamento t\u00e9rmico.<\/p><p><span style=\"color: var( --e-global-color-text );\">A cer\u00e2mica de silicato de alumina, tamb\u00e9m conhecida como lava e pedra milagrosa, \u00e9 macia e maquin\u00e1vel antes do tratamento t\u00e9rmico. Um longo processo de queima a temperaturas elevadas de at\u00e9 1093\u00b0C pode aumentar substancialmente sua dureza e resist\u00eancia, ap\u00f3s o que \u00e9 necess\u00e1ria a usinagem com diamante. Tal caracter\u00edstica \u00fanica torna a cer\u00e2mica de silicato de alumina um material ideal para escultura.<\/span><\/p><p>Neste estudo, mostramos que o tratamento t\u00e9rmico a uma temperatura mais baixa que o necess\u00e1rio para a queima (800\u00b0C vs 1093\u00b0C) em pouco tempo n\u00e3o melhora as caracter\u00edsticas mec\u00e2nicas e tribol\u00f3gicas da cer\u00e2mica de silicato de alumina, tornando a queima adequada um processo essencial para este material antes de sua utiliza\u00e7\u00e3o nas aplica\u00e7\u00f5es reais.<\/p><div>\u00a0<\/div>\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-51b82d0 elementor-widget elementor-widget-image\" data-id=\"51b82d0\" data-element_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 loading=\"lazy\" decoding=\"async\" width=\"1687\" height=\"1211\" src=\"https:\/\/nanovea.com\/wp-content\/uploads\/2020\/12\/Wear-rate-and-wear-track-depth-of-the-sample-at-different-temperatures.png\" class=\"attachment-full size-full wp-image-9962\" alt=\"Taxa de desgaste e profundidade da pista de desgaste da amostra em diferentes temperaturas 1\" \/>\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<div class=\"elementor-element elementor-element-85de02e elementor-widget elementor-widget-heading\" data-id=\"85de02e\" data-element_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\"><b><i>FIGURA 3. <\/i><\/b>\nTaxa de desgaste e profundidade da pista de desgaste da amostra em diferentes temperaturas<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-a218831 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"a218831\" data-element_type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-c168af9\" data-id=\"c168af9\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-7686b62 elementor-widget elementor-widget-heading\" data-id=\"7686b62\" data-element_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\u00c3O<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-30fe3b0 elementor-widget elementor-widget-text-editor\" data-id=\"30fe3b0\" data-element_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>Com base na an\u00e1lise tribol\u00f3gica abrangente deste estudo, mostramos que a placa cer\u00e2mica de silicato de alumina apresenta coeficiente de atrito compar\u00e1vel em diferentes temperaturas desde a temperatura ambiente at\u00e9 800\u00b0C. No entanto, mostra uma taxa de desgaste substancialmente aumentada de ~0,5 mm3\/Nm a 800\u00b0C, demonstrando a import\u00e2ncia de um tratamento t\u00e9rmico adequado desta cer\u00e2mica.<\/p><p>Os Trib\u00f4metros NANOVEA s\u00e3o capazes de avaliar as propriedades tribol\u00f3gicas dos materiais para aplica\u00e7\u00f5es a altas temperaturas de at\u00e9 1000\u00b0C. A fun\u00e7\u00e3o de medi\u00e7\u00f5es in situ do COF e da profundidade da pista de desgaste permite aos usu\u00e1rios correlacionar diferentes est\u00e1gios do processo de desgaste com a evolu\u00e7\u00e3o do COF, o que \u00e9 fundamental para melhorar a compreens\u00e3o fundamental do mecanismo de desgaste e das caracter\u00edsticas tribol\u00f3gicas dos materiais utilizados em temperaturas elevadas.<\/p>\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<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-0dd5029 elementor-section-content-middle elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"0dd5029\" data-element_type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-c0df1b7\" data-id=\"c0df1b7\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-066d379 elementor-widget elementor-widget-text-editor\" data-id=\"066d379\" data-element_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 Trib\u00f4metros NANOVEA oferecem testes de desgaste e atrito precisos e repet\u00edveis usando os modos rotativo e linear conforme ISO e ASTM, com m\u00f3dulos opcionais de desgaste a alta temperatura, lubrifica\u00e7\u00e3o e tribo-corros\u00e3o dispon\u00edveis em um sistema pr\u00e9-integrado. A gama inigual\u00e1vel da NANOVEA \u00e9 uma solu\u00e7\u00e3o ideal para determinar a gama completa de propriedades tribol\u00f3gicas de revestimentos, filmes e substratos finos ou grossos, macios ou duros.<\/p><p>Os perfis opcionais 3D sem contato est\u00e3o dispon\u00edveis para imagens 3D de alta resolu\u00e7\u00e3o de faixas de desgaste, al\u00e9m de outras medidas de superf\u00edcie, tais como rugosidade.<\/p>\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<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-3a4ad5f\" data-id=\"3a4ad5f\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-57b5a8d elementor-widget elementor-widget-image\" data-id=\"57b5a8d\" data-element_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 loading=\"lazy\" decoding=\"async\" width=\"546\" height=\"308\" src=\"https:\/\/nanovea.com\/wp-content\/uploads\/2020\/12\/IN-SITU-WEAR-MEASUREMENT-1-1.jpg\" class=\"attachment-large size-large wp-image-9973\" alt=\"MEDI\u00c7\u00c3O DO DESGASTE IN-SITU\" \/>\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<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-b9fa98a elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"b9fa98a\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-04c2dae\" data-id=\"04c2dae\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-196b014 elementor-widget elementor-widget-heading\" data-id=\"196b014\" data-element_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\">Tem um aplicativo semelhante?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-70b294d elementor-align-justify open-chat elementor-widget elementor-widget-button\" data-id=\"70b294d\" data-element_type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-size-sm\" role=\"button\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">CONVERSE COM UM ESPECIALISTA AGORA<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\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-c69db75 elementor-align-justify button-quote elementor-widget elementor-widget-button\" data-id=\"c69db75\" data-element_type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/nanovea.com\/contact-sales-form\/\" id=\"button-quote-bottom\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">OBTENHA PRE\u00c7OS E DETALHES RAPIDAMENTE<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\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<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>IN SITU WEAR MEASUREMENT AT HIGH TEMPERATURE USING TRIBOMETER Prepared by Duanjie Li, PhD INTRODUCTION The Linear Variable Differential Transformer (LVDT) is a type of robust electrical transformer used to measure linear displacement. It has been widely used in a variety of industrial applications, including power turbines, hydraulics, automation, aircraft, satellites, nuclear reactors, and many [&hellip;]<\/p>","protected":false},"author":7,"featured_media":9985,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"footnotes":""},"categories":[7,378,349,373,336],"tags":[],"class_list":["post-10121","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-application-notes","category-high-temperature-tribology","category-laboratory-testing","category-rotational-tribology","category-tribology-testing"],"_links":{"self":[{"href":"https:\/\/nanovea.com\/pt\/wp-json\/wp\/v2\/posts\/10121","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/nanovea.com\/pt\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/nanovea.com\/pt\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/nanovea.com\/pt\/wp-json\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"https:\/\/nanovea.com\/pt\/wp-json\/wp\/v2\/comments?post=10121"}],"version-history":[{"count":85,"href":"https:\/\/nanovea.com\/pt\/wp-json\/wp\/v2\/posts\/10121\/revisions"}],"predecessor-version":[{"id":24755,"href":"https:\/\/nanovea.com\/pt\/wp-json\/wp\/v2\/posts\/10121\/revisions\/24755"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nanovea.com\/pt\/wp-json\/wp\/v2\/media\/9985"}],"wp:attachment":[{"href":"https:\/\/nanovea.com\/pt\/wp-json\/wp\/v2\/media?parent=10121"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nanovea.com\/pt\/wp-json\/wp\/v2\/categories?post=10121"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nanovea.com\/pt\/wp-json\/wp\/v2\/tags?post=10121"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}