{"id":80289,"date":"2026-03-13T13:23:27","date_gmt":"2026-03-13T12:23:27","guid":{"rendered":"https:\/\/www.he-arc.ch\/?post_type=he-arc_work&#038;p=80289"},"modified":"2026-03-18T10:04:30","modified_gmt":"2026-03-18T09:04:30","slug":"clemence-louis","status":"publish","type":"he-arc_work","link":"https:\/\/www.he-arc.ch\/en\/projets-etudiants\/clemence-louis\/","title":{"rendered":"CLEMENCE Louis"},"content":{"rendered":"\n<p>Ce travail portait sur le d\u00e9veloppement d\u2019une couche d\u2019adh\u00e9rence en nitrure de chrome (CrN) par la technique HiPIMS, destin\u00e9e \u00e0 servir de fondation pour des rev\u00eatements superdurs en diborure de titane (TiB<sub>2<\/sub>) sur des outils de coupe en carbure de tungst\u00e8ne (WC\/Co).<\/p>\n\n\n\n<p>La probl\u00e9matique centrale \u00e9tait la faible adh\u00e9rence du TiB<sub>2<\/sub> lorsqu\u2019il est d\u00e9pos\u00e9 directement sur le substrat, en raison des fortes contraintes g\u00e9n\u00e9r\u00e9es par la transition abrupte de propri\u00e9t\u00e9s.<\/p>\n\n\n\n<p>Pour y rem\u00e9dier, l\u2019influence des param\u00e8tres cl\u00e9s du proc\u00e9d\u00e9 HiPIMS (rapport de flux N<sub>2<\/sub>\/Ar, dur\u00e9e d\u2019impulsion <em>t<sub>on<\/sub><\/em> et tension de polarisation <em>U<\/em><sub>bias<\/sub>) a \u00e9t\u00e9 \u00e9tudi\u00e9e.<\/p>\n\n\n\n<p>Les r\u00e9sultats ont r\u00e9v\u00e9l\u00e9 que la tension de polarisation est le facteur le plus influent, son application permettant de faire passer la duret\u00e9 de 1700 HVI \u00e0 plus de 3500 HVI en densifiant la microstructure.<\/p>\n\n\n\n<p>Toutefois, malgr\u00e9 l\u2019obtention de couches tr\u00e8s dures, la majorit\u00e9 des essais ont r\u00e9sult\u00e9 en une adh\u00e9rence m\u00e9diocre et un manque de reproductibilit\u00e9. La conclusion principale est que les d\u00e9faillances proviennent d\u2019une interface initiale fragile, caus\u00e9e par des instabilit\u00e9s du proc\u00e9d\u00e9, et non des propri\u00e9t\u00e9s intrins\u00e8ques de la couche CrN.<\/p>\n\n\n\n<p><\/p>\n\n\n\n<p><a href=\"https:\/\/www.he-arc.ch\/wp-content\/uploads\/2026\/03\/25MIC-TB454_Clemence_Louis.pdf\" target=\"_blank\" rel=\"noreferrer noopener\">Poster du travail de bachelor de Louis Cl\u00e9mence<\/a><\/p>\n\n\n\n<div id='gallery-1' class='gallery galleryid-80289 gallery-columns-3 gallery-size-thumbnail'><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/www.he-arc.ch\/en\/25mic-tb454_clemence_louis-2-2\/'><img decoding=\"async\" width=\"150\" height=\"133\" src=\"https:\/\/www.he-arc.ch\/wp-content\/uploads\/2026\/03\/25MIC-TB454_Clemence_Louis-150x133.png\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/www.he-arc.ch\/en\/25mic-tb454_clemence_louis2-2\/'><img decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/www.he-arc.ch\/wp-content\/uploads\/2026\/03\/25MIC-TB454_Clemence_Louis2-150x150.png\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" \/><\/a>\n\t\t\t<\/div><\/figure>\n\t\t<\/div>\n\n","protected":false},"author":63,"featured_media":79843,"template":"","he-arc_domain":[3],"he-arc_training_branch":[50],"he-arc_training_orientation":[57],"he-arc_training_level":[58],"he-arc_project_year":[111],"class_list":["post-80289","he-arc_work","type-he-arc_work","status-publish","has-post-thumbnail","hentry","he-arc_domain-ingenierie","he-arc_training_branch-microtechniques","he-arc_training_orientation-ingenierie-biomedicale","he-arc_training_level-travail-de-bachelor","he-arc_project_year-111"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>CLEMENCE Louis - Haute-Ecole Arc<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.he-arc.ch\/en\/projets-etudiants\/clemence-louis\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"CLEMENCE Louis - Haute-Ecole Arc\" \/>\n<meta property=\"og:description\" content=\"Ce travail portait sur le d\u00e9veloppement d\u2019une couche d\u2019adh\u00e9rence en nitrure de chrome (CrN) par la technique HiPIMS, destin\u00e9e \u00e0 servir de fondation pour des rev\u00eatements superdurs en diborure de titane (TiB2) sur des outils de coupe en carbure de tungst\u00e8ne (WC\/Co). La probl\u00e9matique centrale \u00e9tait la faible adh\u00e9rence du TiB2 lorsqu\u2019il est d\u00e9pos\u00e9 directement [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.he-arc.ch\/en\/projets-etudiants\/clemence-louis\/\" \/>\n<meta property=\"og:site_name\" content=\"Haute-Ecole Arc\" \/>\n<meta property=\"article:modified_time\" content=\"2026-03-18T09:04:30+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.he-arc.ch\/wp-content\/uploads\/2026\/03\/25MIC-TB454_Clemence_Louis-e1773404493306.png\" \/>\n\t<meta property=\"og:image:width\" content=\"1688\" \/>\n\t<meta property=\"og:image:height\" content=\"416\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.he-arc.ch\/en\/projets-etudiants\/clemence-louis\/\",\"url\":\"https:\/\/www.he-arc.ch\/en\/projets-etudiants\/clemence-louis\/\",\"name\":\"CLEMENCE Louis - Haute-Ecole Arc\",\"isPartOf\":{\"@id\":\"https:\/\/www.he-arc.ch\/en\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.he-arc.ch\/en\/projets-etudiants\/clemence-louis\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/www.he-arc.ch\/en\/projets-etudiants\/clemence-louis\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.he-arc.ch\/wp-content\/uploads\/2026\/03\/25MIC-TB454_Clemence_Louis-e1773404493306.png\",\"datePublished\":\"2026-03-13T12:23:27+00:00\",\"dateModified\":\"2026-03-18T09:04:30+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/www.he-arc.ch\/en\/projets-etudiants\/clemence-louis\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.he-arc.ch\/en\/projets-etudiants\/clemence-louis\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/www.he-arc.ch\/en\/projets-etudiants\/clemence-louis\/#primaryimage\",\"url\":\"https:\/\/www.he-arc.ch\/wp-content\/uploads\/2026\/03\/25MIC-TB454_Clemence_Louis-e1773404493306.png\",\"contentUrl\":\"https:\/\/www.he-arc.ch\/wp-content\/uploads\/2026\/03\/25MIC-TB454_Clemence_Louis-e1773404493306.png\",\"width\":1688,\"height\":416},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.he-arc.ch\/en\/projets-etudiants\/clemence-louis\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Accueil\",\"item\":\"https:\/\/www.he-arc.ch\/en\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Student Projects\",\"item\":\"https:\/\/www.he-arc.ch\/en\/student-projects\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"CLEMENCE Louis\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.he-arc.ch\/en\/#website\",\"url\":\"https:\/\/www.he-arc.ch\/en\/\",\"name\":\"Haute-Ecole Arc\",\"description\":\"Haute \u00e9cole sp\u00e9cialis\u00e9e Suisse. 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