{"id":114428,"date":"2022-02-06T19:51:21","date_gmt":"2022-02-06T18:51:21","guid":{"rendered":"https:\/\/material-properties.org\/niobium-et-tantale-comparaison-proprietes\/"},"modified":"2022-03-22T14:13:52","modified_gmt":"2022-03-22T13:13:52","slug":"niobium-et-tantale-comparaison-proprietes","status":"publish","type":"post","link":"https:\/\/material-properties.org\/fr\/niobium-et-tantale-comparaison-proprietes\/","title":{"rendered":"Niobium et Tantale – Comparaison – Propri\u00e9t\u00e9s"},"content":{"rendered":"

Cet article contient une comparaison des principales propri\u00e9t\u00e9s thermiques et atomiques du niobium et du tantale, deux \u00e9l\u00e9ments chimiques comparables du tableau p\u00e9riodique. Il contient \u00e9galement des descriptions de base et des applications des deux \u00e9l\u00e9ments. Niobium contre Tantale.<\/em><\/p>\n

\"niobium<\/p>\n

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

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

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

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

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

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

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

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

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

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

<\/div>\n
\n

Niobium et Tantale – \u00c0 propos des \u00e9l\u00e9ments<\/h2>\n<\/div><\/div>\n
\n
\"\"<\/div>
\n

Niobium<\/h3>\n

Le niobium est un m\u00e9tal de transition mou, gris et ductile, que l’on trouve souvent dans les min\u00e9raux pyrochlore (la principale source commerciale de niobium) et la columbite.<\/p>\n<\/div>

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

Tantale<\/h3>\n

Le tantale est un m\u00e9tal de transition rare, dur, bleu-gris et lustr\u00e9 qui est tr\u00e8s r\u00e9sistant \u00e0 la corrosion.<\/p>\n<\/div>

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

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

\n

\"Tantale<\/p>\n

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

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

<\/div>\n
\n

Niobium et Tantale – Applications<\/h2>\n<\/div><\/div>\n
\n
\n
\n

Niobium<\/a><\/h3>\n

La consommation de niobium est domin\u00e9e par son utilisation comme additif \u00e0 l’acier faiblement alli\u00e9 \u00e0 haute r\u00e9sistance et \u00e0 l’acier inoxydable pour les ol\u00e9oducs et gazoducs, les carrosseries de voitures et de camions, les exigences architecturales, les aciers \u00e0 outils, les coques de navires, les voies ferr\u00e9es.\u00a0Cependant, il existe un certain nombre d’autres applications pour le niobium m\u00e9tallique et ses compos\u00e9s.\u00a0Bien que le niobium ait de nombreuses applications, la majorit\u00e9 est utilis\u00e9e dans la production d’acier de construction de haute qualit\u00e9.\u00a0La deuxi\u00e8me plus grande application du niobium concerne les superalliages \u00e0 base de nickel.\u00a0Les alliages niobium-\u00e9tain sont utilis\u00e9s comme aimants supraconducteurs.<\/p>\n<\/div><\/div>\n<\/div><\/div>\n<\/div><\/div>\n

\n
\n
\n

Tantale<\/a><\/h3>\n

La consommation de tantale est domin\u00e9e par les condensateurs pour les \u00e9quipements \u00e9lectroniques.\u00a0Les condensateurs sont des composants \u00e9lectriques qui stockent l’\u00e9nergie \u00e9lectrostatiquement dans un champ \u00e9lectrique et sont utilis\u00e9s dans une grande vari\u00e9t\u00e9 de produits \u00e9lectriques et \u00e9lectroniques.\u00a0Les principales utilisations finales des condensateurs au tantale comprennent les t\u00e9l\u00e9phones portables, les t\u00e9l\u00e9avertisseurs, les ordinateurs personnels et l’\u00e9lectronique automobile.\u00a0Alli\u00e9 \u00e0 d’autres m\u00e9taux, le tantale est \u00e9galement utilis\u00e9 dans la fabrication d’outils en carbure pour les \u00e9quipements de travail des m\u00e9taux et dans la production de superalliages pour les composants des moteurs \u00e0 r\u00e9action.\u00a0Des compos\u00e9s de tantale tels que le pentoxyde de tantale sont utilis\u00e9s pour fabriquer des condensateurs et du verre \u00e0 indice de r\u00e9fraction \u00e9lev\u00e9 \u00e0 utiliser dans les objectifs d’appareil photo.<\/p>\n<\/div><\/div>\n<\/div><\/div>\n<\/div><\/div>\n

\n

Niobium et Tantale – 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>\nNiobium<\/b><\/td>\nTantale<\/b><\/td>\n<\/tr>\n
Densit\u00e9<\/td>\n8,57 g\/cm3<\/strong><\/td>\n16,65 g\/cm3<\/strong><\/td>\n<\/tr>\n
R\u00e9sistance \u00e0 la traction ultime<\/td>\n275 MPa<\/strong><\/td>\n760 MPa<\/strong><\/td>\n<\/tr>\n
Limite d’\u00e9lasticit\u00e9<\/td>\n70 MPa<\/strong><\/td>\n705 MPa<\/strong><\/td>\n<\/tr>\n
Module de Young<\/td>\n105 GPa<\/strong><\/td>\n186 GPa<\/strong><\/td>\n<\/tr>\n
\u00c9chelle de Mohs<\/td>\n6<\/strong><\/td>\n6,5<\/strong><\/td>\n<\/tr>\n
Duret\u00e9 Brinell<\/td>\n740 MPa<\/strong><\/td>\n800 MPa<\/strong><\/td>\n<\/tr>\n
Duret\u00e9 Vickers<\/td>\n1300 MPa<\/strong><\/td>\n870 MPa<\/strong><\/td>\n<\/tr>\n
Point de fusion<\/td>\n2477\u00b0C<\/strong><\/td>\n2996\u00b0C<\/strong><\/td>\n<\/tr>\n
Point d’\u00e9bullition<\/td>\n4744 \u00b0C<\/strong><\/td>\n5425\u00b0C<\/strong><\/td>\n<\/tr>\n
Conductivit\u00e9 thermique<\/td>\n53,7 W\/mK<\/strong><\/td>\n57 W\/mK<\/strong><\/td>\n<\/tr>\n
Coefficient de dilatation thermique<\/td>\n7,3 \u00b5m\/mK<\/strong><\/td>\n6,3 \u00b5m\/mK<\/strong><\/td>\n<\/tr>\n
Chaleur sp\u00e9cifique<\/td>\n0,26 J\/g\u00b7K<\/span><\/strong><\/td>\n0,14 J\/g\u00b7K<\/strong><\/td>\n<\/tr>\n
Temp\u00e9rature de fusion<\/td>\n26,4 kJ\/mole<\/strong><\/td>\n31,6 kJ\/mole<\/strong><\/td>\n<\/tr>\n
Chaleur de vaporisation<\/td>\n682 kJ\/mole<\/span><\/strong><\/td>\n743 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 niobium et du tantale, deux \u00e9l\u00e9ments chimiques comparables du tableau p\u00e9riodique. Il contient \u00e9galement des descriptions de base et des applications des deux \u00e9l\u00e9ments. Niobium contre Tantale. 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":"\nNiobium et Tantale - 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 niobium et du tantale, 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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