{"id":28984,"date":"2026-03-18T10:21:16","date_gmt":"2026-03-18T09:21:16","guid":{"rendered":"https:\/\/www.mines-stetienne.fr\/panoramines\/?p=28984"},"modified":"2026-03-18T10:21:19","modified_gmt":"2026-03-18T09:21:19","slug":"la-recherche-en-avant-3-questions-a-renee-charriere","status":"publish","type":"post","link":"https:\/\/www.mines-stetienne.fr\/panoramines\/2026\/03\/18\/la-recherche-en-avant-3-questions-a-renee-charriere\/","title":{"rendered":"La recherche en avant : 3 questions \u00e0 Ren\u00e9e Charri\u00e8re"},"content":{"rendered":"\n<p class=\"has-text-align-center\"><em>Enseignante-chercheuse au centre SMS (Science des mat\u00e9riaux et des structures), Ren\u00e9e Charri\u00e8re travaille sur les propri\u00e9t\u00e9s optiques et colorim\u00e9triques des mat\u00e9riaux et nous pr\u00e9sente sa collaboration avec l\u2019entreprise C2RPC.<\/em><\/p>\n\n\n\n<p><strong>Pouvez-vous nous expliquez votre recherche ?<br><\/strong>Je suis ing\u00e9nieure en optique, je travaille sur les propri\u00e9t\u00e9s optiques et thermiques des mat\u00e9riaux. Depuis septembre 2014, je suis maitre de conf\u00e9rences \u00e0 Mines Saint-\u00c9tienne et j\u2019encadre le travail de doctorants chaque ann\u00e9e.<\/p>\n\n\n\n<p><strong>Avec quels types d\u2019entreprises travaillez-vous ?<br><\/strong>Mes recherches sur les propri\u00e9t\u00e9s optiques des mat\u00e9riaux me permettent de travailler dans diff\u00e9rents domaines allant des mat\u00e9riaux pour l\u2019industrie du luxe au camouflage infrarouge en passant par le design&nbsp;: j&rsquo;ai par exemple travaill\u00e9 avec une doctorante sur le vieillissement de la coloration des mat\u00e9riaux pour en faire une valeur ajout\u00e9e. <\/p>\n\n\n\n<p>Mon exp\u00e9rience de recherche m\u2019ouvre aujourd\u2019hui aussi au domaine de l\u2019art et de la conservation. J\u2019encadre la th\u00e8se de L\u00e9a Viard et nous travaillons avec Gabriel Bernard, conservateur, restaurateur et fondateur de l\u2019entreprise C2RPC.<a id=\"_msocom_1\"><\/a><\/p>\n\n\n\n<p><strong>Avez-vous un exemple concret de collaboration r\u00e9ussie avec une entreprise ?<br><\/strong>C\u2019est Gabriel Bernard, lui-m\u00eame, qui nous a contact\u00e9 car il recherchait un expert dans la caract\u00e9risation optique des bleus du peintre Yves Klein. Collaborer avec C2RPC, une entreprise de conservation et de restauration d\u2019\u0153uvres d\u2019art, est une premi\u00e8re pour moi.<br>Le bleu Klein est un proc\u00e9d\u00e9 d\u00e9pos\u00e9 en 1960 \u00e0 l&rsquo;Institut national de la propri\u00e9t\u00e9 industrielle (INPI) par le plasticien Yves Klein. Il associe le bleu outremer synth\u00e9tique \u00e0 un liant choisi avec l&rsquo;aide du marchand de couleurs \u00c9douard Adam.<\/p>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-2 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"197\" height=\"256\" data-id=\"29002\" src=\"https:\/\/www.mines-stetienne.fr\/panoramines\/wp-content\/uploads\/sites\/3\/2026\/02\/telechargement-1.jpg\" alt=\"\" class=\"wp-image-29002\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"860\" height=\"573\" data-id=\"29004\" src=\"https:\/\/www.mines-stetienne.fr\/panoramines\/wp-content\/uploads\/sites\/3\/2026\/02\/860_maxpeoplefrfour625930.jpg\" alt=\"\" class=\"wp-image-29004\" srcset=\"https:\/\/www.mines-stetienne.fr\/panoramines\/wp-content\/uploads\/sites\/3\/2026\/02\/860_maxpeoplefrfour625930.jpg 860w, https:\/\/www.mines-stetienne.fr\/panoramines\/wp-content\/uploads\/sites\/3\/2026\/02\/860_maxpeoplefrfour625930-300x200.jpg 300w, https:\/\/www.mines-stetienne.fr\/panoramines\/wp-content\/uploads\/sites\/3\/2026\/02\/860_maxpeoplefrfour625930-768x512.jpg 768w\" sizes=\"auto, (max-width: 860px) 100vw, 860px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"1024\" data-id=\"29003\" src=\"https:\/\/www.mines-stetienne.fr\/panoramines\/wp-content\/uploads\/sites\/3\/2026\/02\/signal-2026-02-23-090233_002-1-768x1024.jpeg\" alt=\"\" class=\"wp-image-29003\" srcset=\"https:\/\/www.mines-stetienne.fr\/panoramines\/wp-content\/uploads\/sites\/3\/2026\/02\/signal-2026-02-23-090233_002-1-768x1024.jpeg 768w, https:\/\/www.mines-stetienne.fr\/panoramines\/wp-content\/uploads\/sites\/3\/2026\/02\/signal-2026-02-23-090233_002-1-225x300.jpeg 225w, https:\/\/www.mines-stetienne.fr\/panoramines\/wp-content\/uploads\/sites\/3\/2026\/02\/signal-2026-02-23-090233_002-1-1152x1536.jpeg 1152w, https:\/\/www.mines-stetienne.fr\/panoramines\/wp-content\/uploads\/sites\/3\/2026\/02\/signal-2026-02-23-090233_002-1.jpeg 1536w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/><\/figure>\n<\/figure>\n\n\n\n<p>La finalit\u00e9 de nos travaux est de mieux conserver les \u0153uvres fragiles de Klein qui ne m\u00e9langeait que tr\u00e8s peu de liant avec le pigment bleu. La peinture est donc tr\u00e8s pulv\u00e9rulente et notre travail avec CR2PC est de comprendre comment conserver\/restaurer ces \u0153uvres tout en gardant le m\u00eame aspect visuel.<br>C2RPC a r\u00e9alis\u00e9 des \u00e9chantillons caract\u00e9ristiques des techniques employ\u00e9es par Yves Klein pour que nous les caract\u00e9risions, c\u2019est-\u00e0-dire pour que nous quantifiions leurs propri\u00e9t\u00e9s optiques. A l\u2019\u0153il, on remarque que certains \u00e9chantillons sont plus brillants et notre objectif et d\u2019expliquer pourquoi. On doit relier les param\u00e8tres du mat\u00e9riau \u00e0 ses propri\u00e9t\u00e9s optiques pour expliquer les diff\u00e9rences visuelles.<\/p>\n\n\n\n<p>On fait des mesures de brillant, de couleur mais aussi de r\u00e9flectivit\u00e9 bidirectionnelle (quantit\u00e9 de lumi\u00e8re r\u00e9fl\u00e9chie par un mat\u00e9riau dans une direction donn\u00e9e). <br>Notre objectif est aussi de d\u00e9velopper un dispositif de caract\u00e9risation sans contact. Lorsqu\u2019on mesure le brillant d\u2019un mat\u00e9riau, on doit malheureusement le toucher. L&rsquo;appareil de mesure est pos\u00e9 dessus, ce qui n\u2019est pas id\u00e9al pour la conservation d\u2019\u0153uvres d\u2019art. <\/p>\n\n\n\n<p>Nous avons pu \u00e9galement avoir de premiers contacts avec le Mus\u00e9e d&rsquo;art moderne et contemporain de Saint-\u00c9tienne et le Centre Pompidou pour de futures mesures directement sur des \u0153uvres d\u2019art.<\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Enseignante-chercheuse au centre SMS (Science des mat\u00e9riaux et des structures), Ren\u00e9e Charri\u00e8re travaille sur les propri\u00e9t\u00e9s optiques et colorim\u00e9triques des mat\u00e9riaux et nous pr\u00e9sente sa collaboration avec l\u2019entreprise C2RPC. Pouvez-vous nous expliquez votre recherche ?Je suis ing\u00e9nieure en optique, je &hellip;<\/p>\n","protected":false},"author":12778,"featured_media":29182,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_relevanssi_hide_post":"","_relevanssi_hide_content":"","_relevanssi_pin_for_all":"","_relevanssi_pin_keywords":"","_relevanssi_unpin_keywords":"","_relevanssi_related_keywords":"","_relevanssi_related_include_ids":"","_relevanssi_related_exclude_ids":"","_relevanssi_related_no_append":"","_relevanssi_related_not_related":"","_relevanssi_related_posts":"28732,23686,22220,22543,24702,18970","_relevanssi_noindex_reason":"","footnotes":""},"categories":[14],"tags":[1265,329,1264,40,873,91,132,1266],"class_list":["post-28984","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-recherche","tag-caracterisation-optique","tag-centre-sms","tag-ingenieur-optique","tag-innovation","tag-mines-saint-etienne","tag-recherche","tag-saint-etienne","tag-science-des-materiaux-et-des-structures"],"pp_statuses_selecting_workflow":false,"pp_workflow_action":"current","pp_status_selection":"publish","pp_force_visibility":null,"pp_subpost_visibility":null,"pp_inherited_force_visibility":null,"pp_inherited_subpost_visibility":null,"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>La recherche en avant : 3 questions \u00e0 Ren\u00e9e Charri\u00e8re - Panoramines<\/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.mines-stetienne.fr\/panoramines\/2026\/03\/18\/la-recherche-en-avant-3-questions-a-renee-charriere\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"La recherche en avant : 3 questions \u00e0 Ren\u00e9e Charri\u00e8re - Panoramines\" \/>\n<meta property=\"og:description\" content=\"Enseignante-chercheuse au centre SMS (Science des mat\u00e9riaux et des structures), Ren\u00e9e Charri\u00e8re travaille sur les propri\u00e9t\u00e9s optiques et colorim\u00e9triques des mat\u00e9riaux et nous pr\u00e9sente sa collaboration avec l\u2019entreprise C2RPC. 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