{"id":32978,"date":"2019-10-31T21:50:04","date_gmt":"2019-10-31T18:50:04","guid":{"rendered":"https:\/\/prohoster.info\/blog\/razrabotana-3d-pechat-metallami-s-razresheniem-250-nm\/"},"modified":"2019-10-31T21:50:04","modified_gmt":"2019-10-31T18:50:04","slug":"razrabotana-3d-pechat-metallami-s-razresheniem-250-nm","status":"publish","type":"post","link":"https:\/\/prohoster.info\/es\/blog\/news\/razrabotana-3d-pechat-metallami-s-razresheniem-250-nm","title":{"rendered":"Se ha desarrollado impresi\u00f3n 3D de metales con resoluci\u00f3n de 250 nm","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

El uso de la impresi\u00f3n 3D ya no sorprende a nadie. Se pueden imprimir objetos en casa y en el trabajo tanto de metal como de pl\u00e1stico. Solo queda reducir la resoluci\u00f3n del funcionamiento de las boquillas y aumentar la diversidad de los materiales de origen. Y en cada una de estas direcciones a\u00fan queda mucho, pero mucho por hacer.<\/p>\n

\"Se<\/p>\n

Un nuevo logro en la mejora de la impresi\u00f3n 3D anunciaron<\/a><\/noindex> los cient\u00edficos bajo la direcci\u00f3n de investigadores de la Escuela Polit\u00e9cnica Federal de Z\u00farich (ETH Zurich). Los cient\u00edficos presentaron una nueva tecnolog\u00eda prometedora para la impresi\u00f3n de microobjetos met\u00e1licos con una resoluci\u00f3n muy alta \u2015 hasta 250 nm. Hoy en d\u00eda, la impresi\u00f3n 3D de microobjetos met\u00e1licos se realiza con tinta especialmente fabricada. Esta consiste en nanopart\u00edculas met\u00e1licas suspendidas en un l\u00edquido (suspensi\u00f3n). La resoluci\u00f3n de tales impresoras es en micr\u00f3metros, y la impresi\u00f3n se completa con un obligatorio recocido para fijar el modelo. En esta etapa final hay m\u00faltiples inconvenientes, incluyendo la baja formaci\u00f3n de poros y la contaminaci\u00f3n con materia org\u00e1nica (disolventes). \u00bfQu\u00e9 proponen los suizos?<\/p>\n

\"Se
\n<\/center><\/p>\n

Los cient\u00edficos de Z\u00farich reemplazaron la suspensi\u00f3n met\u00e1lica por la impresi\u00f3n directa de metales. M\u00e1s precisamente, iones met\u00e1licos. Se propuso un dise\u00f1o de cabezal de impresi\u00f3n con dos llamados \u00e1nodos desechables. \u00bfPor qu\u00e9 dos? \u00a1Porque es mejor! Se puede imprimir un microobjeto met\u00e1lico alternando entre un metal u otro, o incluso usando ambos simult\u00e1neamente, creando as\u00ed una aleaci\u00f3n con la proporci\u00f3n deseada de un material y del otro. El principio de la impresi\u00f3n 3D propuesta es que, bajo alta tensi\u00f3n aplicada al \u00e1nodo, los iones de metal se desprenden y vuelan hacia el sustrato, donde se asientan y se convierten en el metal original. Para que esto funcione, el sustrato est\u00e1 recubierto con una capa de disolvente, en la que ocurren reacciones qu\u00edmicas redox. As\u00ed, la impresi\u00f3n se realiza directamente con metal limpio y no requiere recocido posterior.<\/p>\n

\r\n \"Reproducir\r\n
<\/div>\r\n <\/div><\/center><\/p>\n

Las aplicaciones de esta tecnolog\u00eda son numerosas. Sin embargo, lo que primero viene a la mente es la microelectr\u00f3nica y la creaci\u00f3n de metamateriales con propiedades inusuales. La impresi\u00f3n con tal precisi\u00f3n ayudar\u00e1 a crear conexiones ultrafinas e incluso a utilizar materiales org\u00e1nicos en la electr\u00f3nica. Hablando de metamateriales, la combinaci\u00f3n de metales puede llevar a la aparici\u00f3n de materiales con propiedades mec\u00e1nicas interesantes, por ejemplo, que sean simult\u00e1neamente flexibles y resistentes.<\/p>\n

<\/p>\n

<\/center><\/p>\n

\t\t\t\t


\n\t\t\t\t\t\t\t\t<\/center>
Fuente: 3dnews.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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