{"id":23347,"date":"2023-08-22T18:19:46","date_gmt":"2023-08-22T21:19:46","guid":{"rendered":"https:\/\/www.inthemine.com.br\/site\/?p=23347"},"modified":"2023-08-27T19:13:27","modified_gmt":"2023-08-27T22:13:27","slug":"autocura-de-metais","status":"publish","type":"post","link":"https:\/\/www.inthemine.com.br\/site\/autocura-de-metais\/","title":{"rendered":"AUTOCURA DE METAIS"},"content":{"rendered":"<p>Pesquisas realizadas pela Sandia National Laboratories e pela Texas A&amp;M University constataram um processo de autocura de metais. A descoberta foi feita durante um experimento para avaliar como trincas se formavam e se espalhavam por um peda\u00e7o de platina de 40 nan\u00f4metros de espessura, usando um microsc\u00f3pio eletr\u00f4nico de transmiss\u00e3o para puxar as extremidades do metal 200 vezes por segundo, gerando rachaduras microsc\u00f3picas conhecidas como danos de fadiga.<\/p>\n<p>Cerca de 40 minutos ap\u00f3s o in\u00edcio do teste, as trincas passaram a se fundir, sem deixar vest\u00edgios na superf\u00edcie do material. Passado algum tempo voltaram a surgir em novas dire\u00e7\u00f5es. O fen\u00f4meno ocorreu em temperatura ambiente, resultado possivelmente de um processo de soldagem a frio, quando superf\u00edcies met\u00e1licas se aproximam o suficiente para que seus \u00e1tomos se emaranhem.<\/p>\n<p style=\"margin: 0cm;\">Os cientistas aprofundar\u00e3o a pesquisa para saber se a ocorr\u00eancia poder\u00e1 ser reproduzida em metais convencionais ou ambientes t\u00edpicos, o que pode revolucionar os conceitos da Engenharia de Materiais.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Descoberta foi feita durante um experimento para avaliar como trincas se formavam em um peda\u00e7o de platina de 40 nm de espessura<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[29],"tags":[],"class_list":["post-23347","post","type-post","status-publish","format-standard","hentry","category-mine-prospeccao"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - 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