{"id":114401,"date":"2022-02-05T04:11:39","date_gmt":"2022-02-05T03:11:39","guid":{"rendered":"https:\/\/material-properties.org\/terbium-et-dysprosium-comparaison-proprietes\/"},"modified":"2022-10-19T07:24:39","modified_gmt":"2022-10-19T06:24:39","slug":"terbium-et-dysprosium-comparaison-proprietes","status":"publish","type":"post","link":"https:\/\/material-properties.org\/fr\/terbium-et-dysprosium-comparaison-proprietes\/","title":{"rendered":"Terbium et Dysprosium – Comparaison – Propri\u00e9t\u00e9s"},"content":{"rendered":"

Cet article contient une comparaison des principales propri\u00e9t\u00e9s thermiques et atomiques du terbium 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.\u00a0Terbium contre Dysprosium.<\/em><\/p>\n

\"terbium<\/p>\n

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

\"Dysprosium<\/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

Terbium et Dysprosium – \u00c0 propos des \u00e9l\u00e9ments<\/h2>\n<\/div><\/div>\n
\n
\"\"<\/div>
\n

Terbium<\/h3>\n

Le terbium est un m\u00e9tal de terre rare blanc argent\u00e9 qui est mall\u00e9able, ductile et suffisamment mou pour \u00eatre coup\u00e9 avec un couteau.\u00a0Neuvi\u00e8me membre de la s\u00e9rie des lanthanides, le terbium est un m\u00e9tal assez \u00e9lectropositif qui r\u00e9agit avec l’eau en d\u00e9gageant de l’hydrog\u00e8ne gazeux.<\/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

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

\n

\"Dysprosium<\/p>\n

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

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

<\/div>\n
\n

Terbium et Dysprosium – Applications<\/h2>\n<\/div><\/div>\n
\n
\n
\n

Terbium<\/a><\/h3>\n

Le terbium est utilis\u00e9 comme dopant dans le fluorure de calcium, le tungstate de calcium et le molybdate de strontium, des mat\u00e9riaux utilis\u00e9s dans les dispositifs \u00e0 semi-conducteurs.\u00a0Il est \u00e9galement utilis\u00e9 dans les ampoules basse consommation et les lampes au mercure.\u00a0L’oxyde de terbium est utilis\u00e9 dans les luminophores verts des lampes fluorescentes et des tubes de t\u00e9l\u00e9vision couleur.\u00a0Il a \u00e9t\u00e9 utilis\u00e9 pour am\u00e9liorer la s\u00e9curit\u00e9 des radiographies m\u00e9dicales en permettant de produire la m\u00eame qualit\u00e9 d’image avec un temps d’exposition beaucoup plus court.\u00a0Les sels de terbium sont utilis\u00e9s dans les appareils laser.<\/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

Terbium 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>\nTerbium<\/b><\/td>\nDysprosium<\/b><\/td>\n<\/tr>\n
Densit\u00e9<\/td>\n8,219 g\/cm3<\/strong><\/td>\n8,551 g\/cm3<\/strong><\/td>\n<\/tr>\n
R\u00e9sistance \u00e0 la traction ultime<\/td>\nN \/ A<\/strong><\/td>\n220 MPa<\/strong><\/td>\n<\/tr>\n
Limite d’\u00e9lasticit\u00e9<\/td>\nN \/ A<\/strong><\/td>\n200 MPa<\/strong><\/td>\n<\/tr>\n
Module de Young<\/td>\n55,7 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>\n680 MPa<\/strong><\/td>\n500 MPa<\/strong><\/td>\n<\/tr>\n
Duret\u00e9 Vickers<\/td>\n860 MPa<\/strong><\/td>\n550 MPa<\/strong><\/td>\n<\/tr>\n
Point de fusion<\/td>\n1365\u00b0C<\/strong><\/td>\n1412\u00b0C<\/strong><\/td>\n<\/tr>\n
Point d’\u00e9bullition<\/td>\n3123\u00b0C<\/strong><\/td>\n2567\u00b0C<\/strong><\/td>\n<\/tr>\n
Conductivit\u00e9 thermique<\/td>\n11W\/mK<\/strong><\/td>\n11W\/mK<\/strong><\/td>\n<\/tr>\n
Coefficient de dilatation thermique<\/td>\n10,3 \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>\n10,8 kJ\/mole<\/strong><\/td>\n11,06 kJ\/mole<\/strong><\/td>\n<\/tr>\n
Chaleur de vaporisation<\/td>\n330,9 kJ\/mol<\/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 du terbium 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.\u00a0Terbium 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":"\nTerbium 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 du terbium 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. Terbium 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\/terbium-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=\"Terbium 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 du terbium 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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