{"id":61,"date":"2023-01-13T09:00:00","date_gmt":"2023-01-13T08:00:00","guid":{"rendered":"https:\/\/arnaud.collignan.net\/blog\/?p=61"},"modified":"2023-07-08T12:27:57","modified_gmt":"2023-07-08T10:27:57","slug":"lalliage-titane-or-de-larmure-diron-man","status":"publish","type":"post","link":"https:\/\/arnaud.collignan.net\/blog\/2023\/01\/13\/lalliage-titane-or-de-larmure-diron-man\/","title":{"rendered":"L’alliage titane-or de l’armure d’Iron Man"},"content":{"rendered":"\n

Alors que l’alliage titane-or \u00e9voqu\u00e9 dans les films d’Iron Man pour constituer son armure pouvait pr\u00eater \u00e0 sourire, des recherches r\u00e9centes \u00e0 ce sujet rapprochent science et fiction.<\/p>\n\n\n\n

Ce type d’alliage existe de longue date. Son r\u00e9seau cristallin contient 1 atome d’or pour 3 atomes de titane. Baptis\u00e9 \u03b1-Ti3Au, il pr\u00e9sente une duret\u00e9 (r\u00e9sistance au choc) \u00e9quivalente au titane.<\/p>\n\n\n\n

Mais ce type d’alliage est polymorphique, c’est \u00e0 dire que l’organisation de ses atomes peut prendre plusieurs formes cristallines.<\/p>\n\n\n\n

Ainsi, et par hasard, une \u00e9quipe de chercheurs am\u00e9ricains a synth\u00e9tis\u00e9 sous forte chaleur une nouvelle forme de cet alliage, baptis\u00e9 \u03b2-Ti3Au. Son r\u00e9seau cristallin contient 2 atomes d’or pour 6 atomes de titane. Et cette nouvelle forme de titane-or s’av\u00e8re avoir une duret\u00e9 quatre fois sup\u00e9rieure au titane !<\/p>\n","protected":false},"excerpt":{"rendered":"

Alors que l’alliage titane-or \u00e9voqu\u00e9 dans les films d’Iron Man pour constituer son armure pouvait pr\u00eater \u00e0 sourire, des recherches r\u00e9centes \u00e0 ce sujet rapprochent…<\/p>\n

Lire la suite…L’alliage titane-or de l’armure d’Iron Man<\/span><\/a><\/div>\n","protected":false},"author":1,"featured_media":63,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[69],"tags":[50,51,15],"class_list":["post-61","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-materiau","tag-chimie","tag-cristallographie","tag-metalurgie","entry"],"acf":{"auteur_de_limage":"Rafe Whysall","url_de_lauteur_de_limage":"https:\/\/pixabay.com\/fr\/users\/rafekw-11219009\/?utm_source=link-attribution&utm_medium=referral&utm_campaign=image&utm_content=4238837","source":"Future-Science","url_de_la_source":"https:\/\/www.futura-sciences.com\/sciences\/actualites\/physique-t-on-cree-alliage-or-titane-armure-iron-man-63705\/","bibliographie":"Science","url_de_la_bibliographie":"https:\/\/www.science.org\/doi\/10.1126\/sciadv.1600319"},"_links":{"self":[{"href":"https:\/\/arnaud.collignan.net\/blog\/wp-json\/wp\/v2\/posts\/61","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/arnaud.collignan.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/arnaud.collignan.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/arnaud.collignan.net\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/arnaud.collignan.net\/blog\/wp-json\/wp\/v2\/comments?post=61"}],"version-history":[{"count":6,"href":"https:\/\/arnaud.collignan.net\/blog\/wp-json\/wp\/v2\/posts\/61\/revisions"}],"predecessor-version":[{"id":154,"href":"https:\/\/arnaud.collignan.net\/blog\/wp-json\/wp\/v2\/posts\/61\/revisions\/154"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/arnaud.collignan.net\/blog\/wp-json\/wp\/v2\/media\/63"}],"wp:attachment":[{"href":"https:\/\/arnaud.collignan.net\/blog\/wp-json\/wp\/v2\/media?parent=61"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/arnaud.collignan.net\/blog\/wp-json\/wp\/v2\/categories?post=61"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/arnaud.collignan.net\/blog\/wp-json\/wp\/v2\/tags?post=61"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}