{"id":114402,"date":"2022-02-05T04:33:41","date_gmt":"2022-02-05T03:33:41","guid":{"rendered":"https:\/\/material-properties.org\/europium-et-dysprosium-comparaison-proprietes\/"},"modified":"2022-10-19T07:24:48","modified_gmt":"2022-10-19T06:24:48","slug":"europium-et-dysprosium-comparaison-proprietes","status":"publish","type":"post","link":"https:\/\/material-properties.org\/fr\/europium-et-dysprosium-comparaison-proprietes\/","title":{"rendered":"Europium et Dysprosium – Comparaison – Propri\u00e9t\u00e9s"},"content":{"rendered":"

Cet article contient une comparaison des principales propri\u00e9t\u00e9s thermiques et atomiques de l’europium et du dysprosium, 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 Dysprosium.<\/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 dysprosium avec un autre \u00e9l\u00e9ment<\/div>
\n
<\/div>\n

\"N\u00e9odyme<\/a><\/p>\n

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

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

<\/div>\n
\n

Europium et Dysprosium – \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

Dysprosium<\/h3>\n

Le dysprosium est un \u00e9l\u00e9ment de terre rare avec un \u00e9clat argent\u00e9 m\u00e9tallique.\u00a0Le dysprosium est utilis\u00e9 pour sa section efficace d’absorption des neutrons thermiques \u00e9lev\u00e9e dans la fabrication de barres de contr\u00f4le dans les r\u00e9acteurs nucl\u00e9aires, pour sa forte susceptibilit\u00e9 magn\u00e9tique dans les applications de stockage de donn\u00e9es.<\/p>\n<\/div>

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

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

\n

\"Dysprosium<\/p>\n

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

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

<\/div>\n
\n

Europium et Dysprosium – 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

Dysprosium<\/a><\/h3>\n

Le dysprosium est utilis\u00e9 dans les ferrites et les alliages magn\u00e9tiques pour les micro-ondes.\u00a0Le dysprosium est de plus en plus demand\u00e9 pour les aimants permanents utilis\u00e9s dans les moteurs de voitures \u00e9lectriques et les \u00e9oliennes.\u00a0Des aciers inoxydables sp\u00e9ciaux alli\u00e9s au dysprosium sont utilis\u00e9s dans les applications de contr\u00f4le nucl\u00e9aire, c’est-\u00e0-dire les barres de commande des r\u00e9acteurs nucl\u00e9aires.\u00a0Le candidat d’un nouveau mat\u00e9riau absorbant pour les barres de commande tol\u00e9rantes aux accidents comprend le gadolinia (Gd2O3), le samaria (Sm2O3), l’europia (Eu2O3), la dysprosie (Dy2O3), l’hafnia (HfO2).<\/p>\n<\/div><\/div>\n<\/div><\/div>\n<\/div><\/div>\n

\n

Europium et Dysprosium – 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>\nDysprosium<\/b><\/td>\n<\/tr>\n
Densit\u00e9<\/td>\n5,244 g\/cm3<\/strong><\/td>\n8,551 g\/cm3<\/strong><\/td>\n<\/tr>\n
R\u00e9sistance \u00e0 la traction ultime<\/td>\n120 MPa<\/strong><\/td>\n220 MPa<\/strong><\/td>\n<\/tr>\n
Limite d’\u00e9lasticit\u00e9<\/td>\n60 MPa<\/strong><\/td>\n200 MPa<\/strong><\/td>\n<\/tr>\n
Module de Young<\/td>\n18,2 GPa<\/strong><\/td>\n61,4 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>\n500 MPa<\/strong><\/td>\n<\/tr>\n
Duret\u00e9 Vickers<\/td>\n170 MPa<\/strong><\/td>\n550 MPa<\/strong><\/td>\n<\/tr>\n
Point de fusion<\/td>\n822\u00b0C<\/strong><\/td>\n1412\u00b0C<\/strong><\/td>\n<\/tr>\n
Point d’\u00e9bullition<\/td>\n1529\u00b0C<\/strong><\/td>\n2567\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>\n9,9 \u00b5m\/mK<\/strong><\/td>\n<\/tr>\n
Chaleur sp\u00e9cifique<\/td>\n0,18 J\/g\u00b7K<\/span><\/strong><\/td>\n0,17 J\/g\u00b7K<\/strong><\/td>\n<\/tr>\n
Temp\u00e9rature de fusion<\/td>\n9,21 kJ\/mole<\/strong><\/td>\n11,06 kJ\/mole<\/strong><\/td>\n<\/tr>\n
Chaleur de vaporisation<\/td>\n143,5 kJ\/mole<\/span><\/strong><\/td>\n230,1 kJ\/mole<\/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 dysprosium, 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 Dysprosium. 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 Dysprosium - 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 dysprosium, 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 Dysprosium.\" \/>\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-dysprosium-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 Dysprosium - 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 dysprosium, deux \u00e9l\u00e9ments chimiques comparables du tableau p\u00e9riodique. Il contient \u00e9galement des descriptions de base et des applications des deux \u00e9l\u00e9ments. 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