{"id":20883,"date":"2018-06-13T09:41:00","date_gmt":"2018-06-13T09:41:00","guid":{"rendered":"https:\/\/www.he-arc.ch\/projets-recherche\/vaac\/"},"modified":"2025-12-02T16:19:35","modified_gmt":"2025-12-02T15:19:35","slug":"vaac","status":"publish","type":"he-arc_project","link":"https:\/\/www.he-arc.ch\/en\/projets-recherche\/vaac\/","title":{"rendered":"VAAC \u2013 Development of a protocol in order to measure the thickness of ancient varnishes on copper alloys"},"content":{"rendered":"\n<div id=\"contact-card-block_581f7871afccb3cceff5e7727b9956c2\" class=\"contact-card is-shadowed mb-2-5 is-not-contained\">\n  <div class=\"contact-card__inner\">\n                <div class=\"contact-entry mb-1\">\n        Project leader\n      <\/div>\n                      <div class=\"contact-entry \">\n        <a href=\"https:\/\/people.he-arc.ch\/contact.php?id=3373568773\" target='_blank' class=\"simple-link contact-entry mb-1\">Julie Schr\u00f6ter<\/a>\n      <\/div>\n            <\/div>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Ancient varnishes on copper alloys are made of different binding media, pigments or colorants. They can have both a protective and aesthetical function. A better knowledge of their thickness could provide information about their technology (application method) and history (dating). This type of information would also help in establishing conservation strategies for these surface finishes in the long run.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">OBJECTIVES<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The aim of the project is to develop and to validate a protocol for thickness measurements on lacquered copper alloys with a portable and non-invasive technique using Eddy current.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">PROGRAM<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Preparation of reproducible reference samples according to selected parameters: &#8211; composition and surface geometry of copper alloys &#8211; composition and min.\/max. thickness similar to real case studies (study of ancient receipes and measurements performed on objects);<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Thickness measurements with the method to be validated and static reference instrumentation: confocal microscopy and ellipsometry;<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Comparison of the results and validation of a protocol for thickness measurements.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">FUNDINGS<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Haute Ecole Arc <a href=\"https:\/\/www.he-arc.ch\/\">he-arc.ch<\/a><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">PARTNERS<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Haute Ecole Arc Ing\u00e9nerie <a href=\"https:\/\/www.he-arc.ch\/domaine\/ingenierie\/\">he-arc.ch<\/a><\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Mus\u00e9e International d\u2019Horlogerie, La Chaux-de-Fonds <a href=\"https:\/\/www.mih.ch\/\">mih.ch<\/a><\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\"><\/ul>\n\n\n\n<div class=\"cta-cards  \">\n\n    \n      \n        <ul class=\"flex-row mt-3 w-list-unstyled\">\n              <li class=\"size-full\">\n  \n  \n        <a href=\"https:\/\/www.he-arc.ch\/wp-content\/uploads\/oldsite\/projets\/projet_vaac.pdf\"  class=\"cta-card is-wide is-shadowed\">\n                <div class=\"cta-card__inner is-with-arrow\">\n                <h3 class=\"cta-card__title pretty-underline is-xlarge\">PDF version<\/h3>\n        <p class=\"cta-card__description is-large\"><\/p>\n                  <span class=\"icon-arrow-right cta-card__arrow\" \/>\n              <\/div>\n        <\/a>\n    \n  \n<\/li>\n          <\/ul>\n    \n  \n<\/div>","protected":false},"author":8,"featured_media":20752,"template":"","he-arc_domain":[5],"he-arc_project_skill":[],"he-arc_project_year":[39,40],"class_list":["post-20883","he-arc_project","type-he-arc_project","status-publish","has-post-thumbnail","hentry","he-arc_domain-conservation-restauration","he-arc_project_year-39","he-arc_project_year-40"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>VAAC \u2013 Development of a protocol in order to measure the thickness of ancient varnishes on copper alloys - 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-recherche\/vaac\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"VAAC \u2013 Development of a protocol in order to measure the thickness of ancient varnishes on copper alloys - Haute-Ecole Arc\" \/>\n<meta property=\"og:description\" content=\"Ancient varnishes on copper alloys are made of different binding media, pigments or colorants. 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