{"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\/fr\/blog\/news\/razrabotana-3d-pechat-metallami-s-razresheniem-250-nm","title":{"rendered":"D\u00e9veloppement de l'impression 3D avec des m\u00e9taux \u00e0 une r\u00e9solution de 250 nm","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>L'utilisation de l'impression 3D ne surprend plus personne. On peut imprimer des objets chez soi ou au travail, que ce soit en m\u00e9tal ou en plastique. Il ne reste plus qu'\u00e0 r\u00e9duire la r\u00e9solution des buses et \u00e0 augmenter la diversit\u00e9 des mat\u00e9riaux de base. Dans chacun de ces domaines, il y a encore \u00e9norm\u00e9ment de travail \u00e0 faire.<\/p>\n<p><img decoding=\"async\" alt=\"D\u00e9veloppement de l&#039;impression 3D avec des m\u00e9taux \u00e0 une r\u00e9solution de 250 nm\" src=\"\/wp-content\/uploads\/2019\/05\/3b3d7f937caf8154b85a6c0ae95cae1a.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/p>\n<p>Une nouvelle r\u00e9alisation dans l'am\u00e9lioration de l'impression 3D <noindex><a rel=\"nofollow\" href=\"https:\/\/www.ethz.ch\/en\/news-and-events\/eth-news\/news\/2019\/04\/3D-printing-of-metallic-micro-objects.html\">ont annonc\u00e9<\/a><\/noindex> des chercheurs dirig\u00e9s par des scientifiques de l'\u00c9cole polytechnique f\u00e9d\u00e9rale de Zurich (ETH Zurich). Les chercheurs ont pr\u00e9sent\u00e9 une nouvelle technologie prometteuse pour l'impression de micro-objets en m\u00e9tal avec une r\u00e9solution tr\u00e8s \u00e9lev\u00e9e - jusqu'\u00e0 250 nm. Aujourd'hui, l'impression 3D de micro-objets en m\u00e9tal se fait gr\u00e2ce \u00e0 des encres sp\u00e9cialement fabriqu\u00e9es. Ce sont des nanoparticules de m\u00e9tal dispers\u00e9es dans un liquide sous forme de suspension. La r\u00e9solution de ces imprimantes est \u00e0 l'\u00e9chelle des microm\u00e8tres, et l'impression est suivie d'un traitement thermique pour fixer le mod\u00e8le. Cette derni\u00e8re \u00e9tape pr\u00e9sente de nombreux inconv\u00e9nients, y compris une mauvaise formation de pores et une contamination par des substances organiques (solvants). Que proposent donc les chercheurs suisses ?<\/p>\n<p><img decoding=\"async\" alt=\"D\u00e9veloppement de l&#039;impression 3D avec des m\u00e9taux \u00e0 une r\u00e9solution de 250 nm\" src=\"\/wp-content\/uploads\/2019\/05\/e04d65eef14c2918b2ec4caa337203c5.jpg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<\/center><\/p>\n<p>Les scientifiques de Zurich ont remplac\u00e9 la suspension m\u00e9tallique par une impression directe de m\u00e9taux. Plus pr\u00e9cis\u00e9ment, par des ions m\u00e9talliques. Une conception de t\u00eate d'impression a \u00e9t\u00e9 propos\u00e9e, comportant deux soi-disant anodes consommables. Pourquoi deux ? Parce que c'est mieux ! Il est possible d'imprimer un micro-objet en m\u00e9tal alternativement avec un m\u00e9tal ou l'autre, ou m\u00eame avec les deux \u00e0 la fois, cr\u00e9ant ainsi un alliage avec le rapport souhait\u00e9 entre les deux mat\u00e9riaux. Le principe de l'impression 3D propos\u00e9e est que, sous une haute tension appliqu\u00e9e \u00e0 l'anode, les ions m\u00e9talliques sont d\u00e9tach\u00e9s et volent vers le substrat, o\u00f9 ils se d\u00e9posent et se transforment en m\u00e9tal d'origine. Pour que cela fonctionne, le substrat est recouvert d'une couche de solvant, dans laquelle se produisent des r\u00e9actions chimiques redox. L'impression s'effectue donc imm\u00e9diatement en m\u00e9tal pur et ne n\u00e9cessite pas de traitement thermique ult\u00e9rieur.<\/p>\n<p><center><div class=\"youtube-placeholder\" data-id=\"GVTclHY_6UM\" onclick=\"loadVideo(this)\">\r\n        <img decoding=\"async\" src=\"https:\/\/img.youtube.com\/vi\/GVTclHY_6UM\/hqdefault.jpg\" alt=\"Lire la vid\u00e9o\" loading=\"lazy\" width=\"480\" height=\"360\" style=\"width:100%;height:auto;\">\r\n        <div class=\"play-button\"><\/div>\r\n    <\/div><\/center><\/p>\n<p>Les applications de technologies similaires sont nombreuses. Mais les premi\u00e8res qui viennent \u00e0 l\u2019esprit sont la micro\u00e9lectronique et la cr\u00e9ation de m\u00e9tamat\u00e9riaux avec des propri\u00e9t\u00e9s inhabituelles. L'impression avec une telle pr\u00e9cision aidera \u00e0 cr\u00e9er des connexions extr\u00eamement fines et m\u00eame \u00e0 utiliser des mat\u00e9riaux organiques en \u00e9lectronique. En parlant de m\u00e9tamat\u00e9riaux, la combinaison de m\u00e9taux peut conduire \u00e0 l'apparition de mat\u00e9riaux ayant des propri\u00e9t\u00e9s m\u00e9caniques int\u00e9ressantes, par exemple, \u00e9tant \u00e0 la fois flexibles et robustes.<\/p>\n<p><center><\/p>\n<p><\/center><\/p>\n<p>\t\t\t\t<center><br \/>\n\t\t\t\t\t\t\t\t<\/center><br \/>Source : <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/3dnews.ru\/986796\">3dnews.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0418\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435 3D-\u043f\u0435\u0447\u0430\u0442\u0438 \u0443\u0436\u0435 \u043d\u0438\u043a\u043e\u0433\u043e \u043d\u0435 \u0443\u0434\u0438\u0432\u043b\u044f\u0435\u0442. \u041f\u0435\u0447\u0430\u0442\u0430\u0442\u044c \u043f\u0440\u0435\u0434\u043c\u0435\u0442\u044b \u043c\u043e\u0436\u043d\u043e \u0434\u043e\u043c\u0430 \u0438 \u043d\u0430 \u0440\u0430\u0431\u043e\u0442\u0435 \u043a\u0430\u043a \u0438\u0437 \u043c\u0435\u0442\u0430\u043b\u043b\u0430, \u0442\u0430\u043a \u0438 \u0438\u0437 \u043f\u043b\u0430\u0441\u0442\u0438\u043a\u0430. \u041e\u0441\u0442\u0430\u043b\u043e\u0441\u044c \u0442\u043e\u043b\u044c\u043a\u043e \u0441\u043d\u0438\u0436\u0430\u0442\u044c \u0440\u0430\u0437\u0440\u0435\u0448\u0435\u043d\u0438\u0435 \u0440\u0430\u0431\u043e\u0442\u044b \u0441\u043e\u043f\u0435\u043b \u0438 \u043f\u043e\u0432\u044b\u0448\u0430\u0442\u044c \u0440\u0430\u0437\u043d\u043e\u043e\u0431\u0440\u0430\u0437\u0438\u0435 \u0438\u0441\u0445\u043e\u0434\u043d\u044b\u0445 \u043c\u0430\u0442\u0435\u0440\u0438\u0430\u043b\u043e\u0432. \u0418 \u0432 \u043a\u0430\u0436\u0434\u043e\u043c \u0438\u0437 \u044d\u0442\u0438\u0445 \u043d\u0430\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u0439 \u0435\u0449\u0451 \u043f\u0440\u0435\u0434\u0441\u0442\u043e\u0438\u0442 \u0441\u0434\u0435\u043b\u0430\u0442\u044c \u043e\u0447\u0435\u043d\u044c \u0438 \u043e\u0447\u0435\u043d\u044c \u043c\u043d\u043e\u0433\u043e. \u041e\u0447\u0435\u0440\u0435\u0434\u043d\u044b\u043c \u0434\u043e\u0441\u0442\u0438\u0436\u0435\u043d\u0438\u0435\u043c \u0432 \u0441\u043e\u0432\u0435\u0440\u0448\u0435\u043d\u0441\u0442\u0432\u043e\u0432\u0430\u043d\u0438\u0438 3D-\u043f\u0435\u0447\u0430\u0442\u0438 \u043f\u043e\u0445\u0432\u0430\u0441\u0442\u0430\u043b\u0438\u0441\u044c \u0443\u0447\u0451\u043d\u044b\u0435 \u043f\u043e\u0434 \u0440\u0443\u043a\u043e\u0432\u043e\u0434\u0441\u0442\u0432\u043e\u043c \u0438\u0441\u0441\u043b\u0435\u0434\u043e\u0432\u0430\u0442\u0435\u043b\u0435\u0439 \u0438\u0437 [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":24737,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-32978","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.2 - 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