{"id":114404,"date":"2022-02-05T05:18:32","date_gmt":"2022-02-05T04:18:32","guid":{"rendered":"https:\/\/material-properties.org\/europium-et-gadolinium-comparaison-proprietes\/"},"modified":"2022-03-22T13:17:58","modified_gmt":"2022-03-22T12:17:58","slug":"europium-et-gadolinium-comparaison-proprietes","status":"publish","type":"post","link":"https:\/\/material-properties.org\/fr\/europium-et-gadolinium-comparaison-proprietes\/","title":{"rendered":"Europium et Gadolinium – Comparaison – Propri\u00e9t\u00e9s"},"content":{"rendered":"

Cet article contient une comparaison des principales propri\u00e9t\u00e9s thermiques et atomiques de l’europium et du gadolinium, deux \u00e9l\u00e9ments chimiques comparables du tableau p\u00e9riodique.\u00a0Il contient \u00e9galement des descriptions de base et des applications des deux \u00e9l\u00e9ments.\u00a0Europium contre Gadolinium.<\/em><\/p>\n

\"europium<\/p>\n

\n
<\/span>Comparer l'europium avec un autre \u00e9l\u00e9ment<\/div>
\n
<\/div>\n

\"Gadolinium<\/a><\/p>\n

\"Dysprosium<\/a><\/p>\n

\"Tantale<\/a><\/p>\n

\"Ytterbium<\/a><\/p>\n<\/div><\/div>\n<\/div><\/div>\n

\n
<\/span>Comparer le gadolinium avec un autre \u00e9l\u00e9ment<\/div>
\n
<\/div>\n

\"Europium<\/a><\/p>\n<\/div><\/div>\n<\/div><\/div>\n

<\/div>\n
\n

Europium et Gadolinium – \u00c0 propos des \u00e9l\u00e9ments<\/h2>\n<\/div><\/div>\n
\n
\"\"<\/div>
\n

Europium<\/h3>\n

L’europium est un m\u00e9tal argent\u00e9 moyennement dur qui s’oxyde facilement dans l’air et l’eau.\u00a0\u00c9tant un membre typique de la s\u00e9rie des lanthanides, l’europium assume g\u00e9n\u00e9ralement l’\u00e9tat d’oxydation +3.\u00a0L’europium est l’un des \u00e9l\u00e9ments les moins abondants de l’univers.\u00a0Seulement environ 5\u00d710\u22128% de toute la mati\u00e8re dans l’univers est de l’europium.<\/p>\n<\/div>

<\/div><\/div>\n<\/div><\/div>\n
\n
\"\"<\/div>
\n

Gadolinium<\/h3>\n

Le gadolinium appartient \u00e0 l’un des \u00e9l\u00e9ments des terres rares (il fait partie d’un ensemble de dix-sept \u00e9l\u00e9ments chimiques du tableau p\u00e9riodique).\u00a0Dans l’industrie nucl\u00e9aire, le gadolinium est couramment utilis\u00e9 comme absorbeur de neutrons en raison de la section efficace d’absorption des neutrons tr\u00e8s \u00e9lev\u00e9e de deux isotopes 155Gd et 157Gd.\u00a0En fait, leurs sections efficaces d’absorption sont les plus \u00e9lev\u00e9es de tous les isotopes stables.<\/p>\n<\/div>

<\/div><\/div>\n<\/div><\/div>\n
<\/div>\n
\n

\"Europium<\/p>\n<\/div><\/div>\n

\n

\"\"<\/p>\n

<\/p><\/div><\/div>\n

Source : www.luciteria.com<\/p>\n

<\/div>\n
\n

Europium et Gadolinium – Applications<\/h2>\n<\/div><\/div>\n
\n
\n
\n

Europium<\/a><\/h3>\n

L’europium est utilis\u00e9 dans l’impression des billets en euros.\u00a0Il brille en rouge sous la lumi\u00e8re UV et les contrefa\u00e7ons peuvent \u00eatre d\u00e9tect\u00e9es par l’absence de cette lueur rouge.\u00a0C’est un dopant dans certains types de verre dans les lasers et autres dispositifs opto\u00e9lectroniques.\u00a0\u00c9tant donn\u00e9 que les isotopes de l’europium agissent comme de bons absorbeurs de neutrons, ils sont \u00e9tudi\u00e9s pour \u00eatre utilis\u00e9s dans des applications de contr\u00f4le nucl\u00e9aire, comme dans les absorbeurs consommables.<\/p>\n<\/div><\/div>\n<\/div><\/div>\n<\/div><\/div>\n

\n
\n
\n

Gadolinium<\/a><\/h3>\n

Le gadolinium poss\u00e8de des propri\u00e9t\u00e9s m\u00e9tallurgiques inhabituelles, dans la mesure o\u00f9 aussi peu que 1% de gadolinium peut am\u00e9liorer de mani\u00e8re significative l’ouvrabilit\u00e9 et la r\u00e9sistance \u00e0 l’oxydation \u00e0 haute temp\u00e9rature du fer, du chrome et des m\u00e9taux apparent\u00e9s.\u00a0Le gadolinium en tant que m\u00e9tal ou sel absorbe les neutrons et est donc parfois utilis\u00e9 pour le blindage en radiographie neutronique et dans les r\u00e9acteurs nucl\u00e9aires.\u00a0Le gadolinium est largement utilis\u00e9 comme absorbeur consommable, qui est couramment utilis\u00e9 dans le combustible neuf pour compenser un exc\u00e8s de r\u00e9activit\u00e9 du c\u0153ur du r\u00e9acteur.\u00a0Parmi tous les \u00e9l\u00e9ments stables connus, le gadolinium poss\u00e8de la section efficace de capture des neutrons thermiques la plus \u00e9lev\u00e9e (49 000 granges).\u00a0L’oxyde de cuivre baryum gadolinium (GdBCO) a \u00e9t\u00e9 recherch\u00e9 pour ses propri\u00e9t\u00e9s supraconductrices avec des applications dans les moteurs ou g\u00e9n\u00e9rateurs supraconducteurs – par exemple dans une \u00e9olienne.<\/p>\n<\/div><\/div>\n<\/div><\/div>\n<\/div><\/div>\n

\n

Europium et Gadolinium – Comparaison dans le tableau<\/h2>\n<\/div><\/div>\n
\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\u00c9l\u00e9ment<\/td>\nEuropium<\/b><\/td>\nGadolinium<\/b><\/td>\n<\/tr>\n
Densit\u00e9<\/td>\n5,244 g\/cm3<\/strong><\/td>\n7,901 g\/cm3<\/strong><\/td>\n<\/tr>\n
R\u00e9sistance \u00e0 la traction ultime<\/td>\n120 MPa<\/strong><\/td>\n170 MPa<\/strong><\/td>\n<\/tr>\n
Limite d’\u00e9lasticit\u00e9<\/td>\n60 MPa<\/strong><\/td>\n160 MPa<\/strong><\/td>\n<\/tr>\n
Module de Young<\/td>\n18,2 GPa<\/strong><\/td>\n54,8 GPa<\/strong><\/td>\n<\/tr>\n
\u00c9chelle de Mohs<\/td>\nN \/ A<\/strong><\/td>\nN \/ A<\/strong><\/td>\n<\/tr>\n
Duret\u00e9 Brinell<\/td>\nN \/ A<\/strong><\/td>\nN \/ A<\/strong><\/td>\n<\/tr>\n
Duret\u00e9 Vickers<\/td>\n170 MPa<\/strong><\/td>\n570 MPa<\/strong><\/td>\n<\/tr>\n
Point de fusion<\/td>\n822\u00b0C<\/strong><\/td>\n1313\u00b0C<\/strong><\/td>\n<\/tr>\n
Point d’\u00e9bullition<\/td>\n1529\u00b0C<\/strong><\/td>\n3000\u00b0C<\/strong><\/td>\n<\/tr>\n
Conductivit\u00e9 thermique<\/td>\n14W\/mK<\/strong><\/td>\n11W\/mK<\/strong><\/td>\n<\/tr>\n
Coefficient de dilatation thermique<\/td>\n35 \u00b5m\/mK<\/strong><\/td>\n9,4 \u00b5m\/mK<\/strong><\/td>\n<\/tr>\n
Chaleur sp\u00e9cifique<\/td>\n0,18 J\/g\u00b7K<\/span><\/strong><\/td>\n0,23 J\/g\u00b7K<\/strong><\/td>\n<\/tr>\n
Temp\u00e9rature de fusion<\/td>\n9,21 kJ\/mole<\/strong><\/td>\n10,05 kJ\/mole<\/strong><\/td>\n<\/tr>\n
Chaleur de vaporisation<\/td>\n143,5 kJ\/mole<\/span><\/strong><\/td>\n359,4 kJ\/mol<\/strong><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div><\/div>\n","protected":false},"excerpt":{"rendered":"

Cet article contient une comparaison des principales propri\u00e9t\u00e9s thermiques et atomiques de l’europium et du gadolinium, deux \u00e9l\u00e9ments chimiques comparables du tableau p\u00e9riodique.\u00a0Il contient \u00e9galement des descriptions de base et des applications des deux \u00e9l\u00e9ments.\u00a0Europium contre Gadolinium. Source : www.luciteria.com<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"yoast_head":"\nEuropium et Gadolinium - Comparaison - Propri\u00e9t\u00e9s - Material Properties<\/title>\n<meta name=\"description\" content=\"Cet article contient une comparaison des principales propri\u00e9t\u00e9s thermiques et atomiques de l'europium et du gadolinium, deux \u00e9l\u00e9ments chimiques comparables du tableau p\u00e9riodique. Il contient \u00e9galement des descriptions de base et des applications des deux \u00e9l\u00e9ments. Europium contre Gadolinium.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/material-properties.org\/fr\/europium-et-gadolinium-comparaison-proprietes\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Europium et Gadolinium - Comparaison - Propri\u00e9t\u00e9s - Material Properties\" \/>\n<meta property=\"og:description\" content=\"Cet article contient une comparaison des principales propri\u00e9t\u00e9s thermiques et atomiques de l'europium et du gadolinium, deux \u00e9l\u00e9ments chimiques comparables du tableau p\u00e9riodique. Il contient \u00e9galement des descriptions de base et des applications des deux \u00e9l\u00e9ments. Europium contre Gadolinium.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/material-properties.org\/fr\/europium-et-gadolinium-comparaison-proprietes\/\" \/>\n<meta property=\"og:site_name\" content=\"Material Properties\" \/>\n<meta property=\"article:published_time\" content=\"2022-02-05T04:18:32+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2022-03-22T12:17:58+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/material-properties.org\/wp-content\/uploads\/2021\/01\/europium-and-gadolinium-comparison.png\" \/>\n<meta name=\"author\" content=\"Nick Connor\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"Nick Connor\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"4 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/material-properties.org\/fr\/europium-et-gadolinium-comparaison-proprietes\/\",\"url\":\"https:\/\/material-properties.org\/fr\/europium-et-gadolinium-comparaison-proprietes\/\",\"name\":\"Europium et Gadolinium - Comparaison - Propri\u00e9t\u00e9s - Material Properties\",\"isPartOf\":{\"@id\":\"https:\/\/material-properties.org\/fr\/#website\"},\"datePublished\":\"2022-02-05T04:18:32+00:00\",\"dateModified\":\"2022-03-22T12:17:58+00:00\",\"author\":{\"@id\":\"https:\/\/material-properties.org\/fr\/#\/schema\/person\/e8c544db9afedaec8574d6464f9398bb\"},\"description\":\"Cet article contient une comparaison des principales propri\u00e9t\u00e9s thermiques et atomiques de l'europium et du gadolinium, deux \u00e9l\u00e9ments chimiques comparables du tableau p\u00e9riodique. Il contient \u00e9galement des descriptions de base et des applications des deux \u00e9l\u00e9ments. Europium contre Gadolinium.\",\"breadcrumb\":{\"@id\":\"https:\/\/material-properties.org\/fr\/europium-et-gadolinium-comparaison-proprietes\/#breadcrumb\"},\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/material-properties.org\/fr\/europium-et-gadolinium-comparaison-proprietes\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/material-properties.org\/fr\/europium-et-gadolinium-comparaison-proprietes\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Dom\u016f\",\"item\":\"https:\/\/material-properties.org\/fr\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Europium et Gadolinium – Comparaison – Propri\u00e9t\u00e9s\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/material-properties.org\/fr\/#website\",\"url\":\"https:\/\/material-properties.org\/fr\/\",\"name\":\"Material Properties\",\"description\":\"\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/material-properties.org\/fr\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"fr-FR\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/material-properties.org\/fr\/#\/schema\/person\/e8c544db9afedaec8574d6464f9398bb\",\"name\":\"Nick Connor\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\/\/material-properties.org\/fr\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/84c0dec310b44b65da29dc9df6925239?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/84c0dec310b44b65da29dc9df6925239?s=96&d=mm&r=g\",\"caption\":\"Nick Connor\"},\"url\":\"https:\/\/material-properties.org\/fr\/author\/matan\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Europium et Gadolinium - Comparaison - Propri\u00e9t\u00e9s - Material Properties","description":"Cet article contient une comparaison des principales propri\u00e9t\u00e9s thermiques et atomiques de l'europium et du gadolinium, deux \u00e9l\u00e9ments chimiques comparables du tableau p\u00e9riodique. Il contient \u00e9galement des descriptions de base et des applications des deux \u00e9l\u00e9ments. Europium contre Gadolinium.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/material-properties.org\/fr\/europium-et-gadolinium-comparaison-proprietes\/","og_locale":"fr_FR","og_type":"article","og_title":"Europium et Gadolinium - Comparaison - Propri\u00e9t\u00e9s - Material Properties","og_description":"Cet article contient une comparaison des principales propri\u00e9t\u00e9s thermiques et atomiques de l'europium et du gadolinium, deux \u00e9l\u00e9ments chimiques comparables du tableau p\u00e9riodique. Il contient \u00e9galement des descriptions de base et des applications des deux \u00e9l\u00e9ments. Europium contre Gadolinium.","og_url":"https:\/\/material-properties.org\/fr\/europium-et-gadolinium-comparaison-proprietes\/","og_site_name":"Material Properties","article_published_time":"2022-02-05T04:18:32+00:00","article_modified_time":"2022-03-22T12:17:58+00:00","og_image":[{"url":"https:\/\/material-properties.org\/wp-content\/uploads\/2021\/01\/europium-and-gadolinium-comparison.png"}],"author":"Nick Connor","twitter_card":"summary_large_image","twitter_misc":{"\u00c9crit par":"Nick Connor","Dur\u00e9e de lecture estim\u00e9e":"4 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/material-properties.org\/fr\/europium-et-gadolinium-comparaison-proprietes\/","url":"https:\/\/material-properties.org\/fr\/europium-et-gadolinium-comparaison-proprietes\/","name":"Europium et Gadolinium - Comparaison - Propri\u00e9t\u00e9s - Material Properties","isPartOf":{"@id":"https:\/\/material-properties.org\/fr\/#website"},"datePublished":"2022-02-05T04:18:32+00:00","dateModified":"2022-03-22T12:17:58+00:00","author":{"@id":"https:\/\/material-properties.org\/fr\/#\/schema\/person\/e8c544db9afedaec8574d6464f9398bb"},"description":"Cet article contient une comparaison des principales propri\u00e9t\u00e9s thermiques et atomiques de l'europium et du gadolinium, deux \u00e9l\u00e9ments chimiques comparables du tableau p\u00e9riodique. Il contient \u00e9galement des descriptions de base et des applications des deux \u00e9l\u00e9ments. Europium contre Gadolinium.","breadcrumb":{"@id":"https:\/\/material-properties.org\/fr\/europium-et-gadolinium-comparaison-proprietes\/#breadcrumb"},"inLanguage":"fr-FR","potentialAction":[{"@type":"ReadAction","target":["https:\/\/material-properties.org\/fr\/europium-et-gadolinium-comparaison-proprietes\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/material-properties.org\/fr\/europium-et-gadolinium-comparaison-proprietes\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Dom\u016f","item":"https:\/\/material-properties.org\/fr\/"},{"@type":"ListItem","position":2,"name":"Europium et Gadolinium – Comparaison – Propri\u00e9t\u00e9s"}]},{"@type":"WebSite","@id":"https:\/\/material-properties.org\/fr\/#website","url":"https:\/\/material-properties.org\/fr\/","name":"Material Properties","description":"","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/material-properties.org\/fr\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"fr-FR"},{"@type":"Person","@id":"https:\/\/material-properties.org\/fr\/#\/schema\/person\/e8c544db9afedaec8574d6464f9398bb","name":"Nick Connor","image":{"@type":"ImageObject","inLanguage":"fr-FR","@id":"https:\/\/material-properties.org\/fr\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/84c0dec310b44b65da29dc9df6925239?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/84c0dec310b44b65da29dc9df6925239?s=96&d=mm&r=g","caption":"Nick Connor"},"url":"https:\/\/material-properties.org\/fr\/author\/matan\/"}]}},"_links":{"self":[{"href":"https:\/\/material-properties.org\/fr\/wp-json\/wp\/v2\/posts\/114404"}],"collection":[{"href":"https:\/\/material-properties.org\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/material-properties.org\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/material-properties.org\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/material-properties.org\/fr\/wp-json\/wp\/v2\/comments?post=114404"}],"version-history":[{"count":0,"href":"https:\/\/material-properties.org\/fr\/wp-json\/wp\/v2\/posts\/114404\/revisions"}],"wp:attachment":[{"href":"https:\/\/material-properties.org\/fr\/wp-json\/wp\/v2\/media?parent=114404"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/material-properties.org\/fr\/wp-json\/wp\/v2\/categories?post=114404"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/material-properties.org\/fr\/wp-json\/wp\/v2\/tags?post=114404"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}