{"id":114403,"date":"2022-02-05T04:55:42","date_gmt":"2022-02-05T03:55:42","guid":{"rendered":"https:\/\/material-properties.org\/europium-et-ytterbium-comparaison-proprietes\/"},"modified":"2022-03-22T11:57:16","modified_gmt":"2022-03-22T10:57:16","slug":"europium-et-ytterbium-comparaison-proprietes","status":"publish","type":"post","link":"https:\/\/material-properties.org\/fr\/europium-et-ytterbium-comparaison-proprietes\/","title":{"rendered":"Europium et Ytterbium – Comparaison – Propri\u00e9t\u00e9s"},"content":{"rendered":"

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

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

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

<\/div>\n
\n

Europium et Ytterbium – \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

Ytterbium<\/h3>\n

En raison de sa configuration \u00e9lectronique \u00e0 coque ferm\u00e9e, sa densit\u00e9 et ses points de fusion et d’\u00e9bullition diff\u00e8rent consid\u00e9rablement de ceux de la plupart des autres lanthanides.<\/p>\n<\/div>

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

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

\n

\"Ytterbium<\/p>\n

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

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

<\/div>\n
\n

Europium et Ytterbium – 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

Ytterbium<\/a><\/h3>\n

L’ytterbium commence \u00e0 trouver une vari\u00e9t\u00e9 d’utilisations, comme dans les dispositifs de m\u00e9moire et les lasers accordables.\u00a0Il peut \u00e9galement \u00eatre utilis\u00e9 comme catalyseur industriel et est de plus en plus utilis\u00e9 pour remplacer d’autres catalyseurs jug\u00e9s trop toxiques et polluants.\u00a0Une petite quantit\u00e9 d’ytterbium est utilis\u00e9e pour ajouter de la r\u00e9sistance \u00e0 des types d’acier sp\u00e9cifiques.\u00a0L’ytterbium peut \u00e9galement \u00eatre utilis\u00e9 comme dopant pour aider \u00e0 am\u00e9liorer le raffinement du grain, la r\u00e9sistance et d’autres propri\u00e9t\u00e9s m\u00e9caniques de l’acier inoxydable.<\/p>\n<\/div><\/div>\n<\/div><\/div>\n<\/div><\/div>\n

\n

Europium et Ytterbium – 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>\nYtterbium<\/b><\/td>\n<\/tr>\n
Densit\u00e9<\/td>\n5,244 g\/cm3<\/strong><\/td>\n6,57 g\/cm3<\/strong><\/td>\n<\/tr>\n
R\u00e9sistance \u00e0 la traction ultime<\/td>\n120 MPa<\/strong><\/td>\n69 MPa<\/strong><\/td>\n<\/tr>\n
Limite d’\u00e9lasticit\u00e9<\/td>\n60 MPa<\/strong><\/td>\n66 MPa<\/strong><\/td>\n<\/tr>\n
Module de Young<\/td>\n18,2 GPa<\/strong><\/td>\n23,9 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>\n340 MPa<\/strong><\/td>\n<\/tr>\n
Duret\u00e9 Vickers<\/td>\n170 MPa<\/strong><\/td>\n210 MPa<\/strong><\/td>\n<\/tr>\n
Point de fusion<\/td>\n822\u00b0C<\/strong><\/td>\n819\u00b0C<\/strong><\/td>\n<\/tr>\n
Point d’\u00e9bullition<\/td>\n1529\u00b0C<\/strong><\/td>\n1196\u00b0C<\/strong><\/td>\n<\/tr>\n
Conductivit\u00e9 thermique<\/td>\n14W\/mK<\/strong><\/td>\n39W\/mK<\/strong><\/td>\n<\/tr>\n
Coefficient de dilatation thermique<\/td>\n35 \u00b5m\/mK<\/strong><\/td>\n26,3 \u00b5m\/mK<\/strong><\/td>\n<\/tr>\n
Chaleur sp\u00e9cifique<\/td>\n0,18 J\/g\u00b7K<\/span><\/strong><\/td>\n0,15 J\/g\u00b7K<\/strong><\/td>\n<\/tr>\n
Temp\u00e9rature de fusion<\/td>\n9,21 kJ\/mole<\/strong><\/td>\n7,66 kJ\/mole<\/strong><\/td>\n<\/tr>\n
Chaleur de vaporisation<\/td>\n143,5 kJ\/mole<\/span><\/strong><\/td>\n128,9 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 de l’ytterbium, 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 Ytterbium. 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 Ytterbium - 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 de l'ytterbium, 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 Ytterbium.\" \/>\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-ytterbium-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 Ytterbium - 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 de l'ytterbium, 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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