{"id":16447,"date":"2025-01-28T08:42:30","date_gmt":"2025-01-28T11:42:30","guid":{"rendered":"https:\/\/www.fie.undef.edu.ar\/ceptm\/?p=16447"},"modified":"2025-01-28T08:42:30","modified_gmt":"2025-01-28T11:42:30","slug":"fuertes-como-el-acero-ligeros-como-la-espuma-el-aprendizaje-automatico-y-la-impresion-nano-3d-producen-innovadores-materiales-nanoarquitecturados-de-alto-rendimiento","status":"publish","type":"post","link":"https:\/\/www.fie.undef.edu.ar\/ceptm\/?p=16447","title":{"rendered":"Fuertes como el acero, ligeros como la espuma: el aprendizaje autom\u00e1tico y la impresi\u00f3n nano-3D producen\u00a0innovadores\u00a0materiales nanoarquitecturados de alto rendimiento"},"content":{"rendered":"

Investigadores de la Universidad de Toronto han utilizado el aprendizaje autom\u00e1tico para dise\u00f1ar materiales con la resistencia del acero pero la ligereza del poliestireno. En el art\u00edculo adjunto, se describe c\u00f3mo crearon nanomateriales con propiedades que ofrecen una combinaci\u00f3n contradictoria de resistencia excepcional, peso ligero y capacidad de personalizaci\u00f3n. El enfoque podr\u00eda beneficiar a una amplia gama de industrias. El texto analiza los avances en materiales centr\u00e1ndose especialmente en las nanoredes de carbono optimizadas. Estos materiales se dise\u00f1an mediante optimizaci\u00f3n bayesiana multiobjetivo y polimerizaci\u00f3n de dos fotones, logrando una impresionante resistencia espec\u00edfica a bajas densidades. El proceso de optimizaci\u00f3n da como resultado mejoras significativas tanto en la resistencia como en el m\u00f3dulo de Young. Adem\u00e1s, al reducir los di\u00e1metros de los puntales de las nanoredes, se crea un carbono de alta resistencia con propiedades \u00fanicas. El estudio demuestra el potencial para crear metamateriales escalables en mil\u00edmetros con dimensiones nanom\u00e9tricas que combinan la resistencia del acero al carbono y la baja densidad del poliestireno, ofreciendo nuevas posibilidades para aplicaciones de dise\u00f1o industrial.<\/p>\n

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Abstract<\/strong><\/p>\n

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Nanoarchitected materials are at the frontier of metamaterial design and have set the benchmark for mechanical performance in several contemporary applications. However, traditional nanoarchitected designs with conventional topologies exhibit poor stress distributions and induce premature nodal failure. Here, using multi-objective Bayesian optimization and two-photon polymerization, optimized carbon nanolattices with an exceptional specific strength of 2.03\u00a0MPa\u00a0m3<\/sup>\u00a0kg\u22121<\/sup> at low densities <215\u00a0kg m\u22123<\/sup> are created. Generative design optimization provides experimental improvements in strength and Young’s modulus by as much as 118% and 68%, respectively, at equivalent densities with entirely different lattice failure responses. Additionally, the reduction of nanolattice strut diameters to 300\u00a0nm produces a unique high-strength carbon with a pyrolysis-induced atomic gradient of 94% sp2<\/sup> aromatic carbon and low oxygen impurities. Using multi-focus multi-photon polymerization, a millimeter-scalable metamaterial consisting of 18.75 million lattice cells with nanometer dimensions is demonstrated. Combining Bayesian optimized designs and nanoarchitected pyrolyzed carbon, the optimal nanostructures exhibit the strength of carbon steel at the density of Styrofoam offering unparalleled capabilities in light-weighting, fuel reduction, and contemporary design applications.<\/p>\n<\/div>\n

\"Descargar<\/a><\/p>\n<\/section>\n<\/div>\n

Fuente:<\/strong> https:\/\/advanced.onlinelibrary.wiley.com<\/em><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

Investigadores de la Universidad de Toronto han utilizado el aprendizaje autom\u00e1tico para dise\u00f1ar materiales con la resistencia del acero pero la ligereza del poliestireno. En… <\/p>\n","protected":false},"author":1,"featured_media":16449,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[37,24],"tags":[],"_links":{"self":[{"href":"https:\/\/www.fie.undef.edu.ar\/ceptm\/index.php?rest_route=\/wp\/v2\/posts\/16447"}],"collection":[{"href":"https:\/\/www.fie.undef.edu.ar\/ceptm\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.fie.undef.edu.ar\/ceptm\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.fie.undef.edu.ar\/ceptm\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.fie.undef.edu.ar\/ceptm\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=16447"}],"version-history":[{"count":1,"href":"https:\/\/www.fie.undef.edu.ar\/ceptm\/index.php?rest_route=\/wp\/v2\/posts\/16447\/revisions"}],"predecessor-version":[{"id":16450,"href":"https:\/\/www.fie.undef.edu.ar\/ceptm\/index.php?rest_route=\/wp\/v2\/posts\/16447\/revisions\/16450"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.fie.undef.edu.ar\/ceptm\/index.php?rest_route=\/wp\/v2\/media\/16449"}],"wp:attachment":[{"href":"https:\/\/www.fie.undef.edu.ar\/ceptm\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=16447"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.fie.undef.edu.ar\/ceptm\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=16447"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.fie.undef.edu.ar\/ceptm\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=16447"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}