{"id":114431,"date":"2022-02-06T20:57:24","date_gmt":"2022-02-06T19:57:24","guid":{"rendered":"https:\/\/material-properties.org\/rhodium-et-rhenium-comparaison-proprietes\/"},"modified":"2022-03-22T14:18:55","modified_gmt":"2022-03-22T13:18:55","slug":"rhodium-et-rhenium-comparaison-proprietes","status":"publish","type":"post","link":"https:\/\/material-properties.org\/fr\/rhodium-et-rhenium-comparaison-proprietes\/","title":{"rendered":"Rhodium et Rh\u00e9nium – Comparaison – Propri\u00e9t\u00e9s"},"content":{"rendered":"

Cet article contient une comparaison des principales propri\u00e9t\u00e9s thermiques et atomiques du rhodium et du rh\u00e9nium, deux \u00e9l\u00e9ments chimiques comparables du tableau p\u00e9riodique.\u00a0Il contient \u00e9galement des descriptions de base et des applications des deux \u00e9l\u00e9ments.\u00a0Rhodium contre Rh\u00e9nium.<\/em><\/p>\n

\"rhodium<\/p>\n

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

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

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

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

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

\"Rh\u00e9nium<\/a><\/p>\n

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

\n
<\/span>Comparer le rh\u00e9nium avec un autre \u00e9l\u00e9ment<\/div>
\n
<\/div>\n

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

\"Tungst\u00e8ne<\/a><\/p>\n<\/div><\/div>\n<\/div><\/div>\n

<\/div>\n
\n

Rhodium et Rh\u00e9nium – \u00c0 propos des \u00e9l\u00e9ments<\/h2>\n<\/div><\/div>\n
\n
\"\"<\/div>
\n

Rhodium<\/h3>\n

Le rhodium est un m\u00e9tal de transition rare, blanc argent\u00e9, dur, r\u00e9sistant \u00e0 la corrosion et chimiquement inerte.\u00a0C’est un m\u00e9tal noble et un membre du groupe du platine.<\/p>\n<\/div>

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

Rh\u00e9nium<\/h3>\n

Le rh\u00e9nium est un m\u00e9tal de transition blanc argent\u00e9, lourd, de troisi\u00e8me rang\u00e9e du groupe 7 du tableau p\u00e9riodique.<\/p>\n<\/div>

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

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

\n

\"Rh\u00e9nium<\/p>\n

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

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

<\/div>\n
\n

Rhodium et Rh\u00e9nium – Applications<\/h2>\n<\/div><\/div>\n
\n
\n
\n

Rhodium<\/a><\/h3>\n

L’utilisation principale de l’\u00e9l\u00e9ment (environ 80% de la production mondiale de rhodium) est l’un des catalyseurs des convertisseurs catalytiques \u00e0 trois voies des automobiles.\u00a0Parce que le m\u00e9tal rhodium est inerte contre la corrosion et la plupart des produits chimiques agressifs, et en raison de sa raret\u00e9, le rhodium est g\u00e9n\u00e9ralement alli\u00e9 au platine ou au palladium et appliqu\u00e9 dans des rev\u00eatements r\u00e9sistants aux hautes temp\u00e9ratures et \u00e0 la corrosion.\u00a0Dans les r\u00e9acteurs nucl\u00e9aires, les d\u00e9tecteurs \u00e0 base de rhodium sont souvent utilis\u00e9s pour mesurer le flux neutronique dans le c\u0153ur.<\/p>\n<\/div><\/div>\n<\/div><\/div>\n<\/div><\/div>\n

\n
\n
\n

Rh\u00e9nium<\/a><\/h3>\n

Plus de 80 % de l’utilisation mondiale de rh\u00e9nium est dans les superalliages \u00e0 haute temp\u00e9rature pour les applications a\u00e9ronautiques telles que les aubes de turbine et les pi\u00e8ces de moteur.\u00a0Ces alliages contiennent jusqu’\u00e0 6% de rh\u00e9nium, ce qui fait de la construction de moteurs \u00e0 r\u00e9action la plus grande utilisation unique de l’\u00e9l\u00e9ment.\u00a0Le rh\u00e9nium est ajout\u00e9 aux superalliages \u00e0 base de nickel pour am\u00e9liorer la r\u00e9sistance au fluage des alliages.\u00a0La demande restante provient principalement des industries p\u00e9trochimiques de raffinage.\u00a0Les catalyseurs platine-rh\u00e9nium qui sont principalement utilis\u00e9s dans l’essence sans plomb \u00e0 indice d’octane \u00e9lev\u00e9 sont une autre application majeure du rh\u00e9nium.<\/p>\n<\/div><\/div>\n<\/div><\/div>\n<\/div><\/div>\n

\n

Rhodium et Rh\u00e9nium – 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>\nRhodium<\/b><\/td>\nRh\u00e9nium<\/b><\/td>\n<\/tr>\n
Densit\u00e9<\/td>\n12,45 g\/cm3<\/strong><\/td>\n21,02 g\/cm3<\/strong><\/td>\n<\/tr>\n
R\u00e9sistance \u00e0 la traction ultime<\/td>\n950 MPa<\/strong><\/td>\n1070 MPa<\/strong><\/td>\n<\/tr>\n
Limite d’\u00e9lasticit\u00e9<\/td>\nN \/ A<\/strong><\/td>\n290 MPa<\/strong><\/td>\n<\/tr>\n
Module de Young<\/td>\n380 GPa<\/strong><\/td>\n463 GPa<\/strong><\/td>\n<\/tr>\n
\u00c9chelle de Mohs<\/td>\n6<\/strong><\/td>\n7<\/strong><\/td>\n<\/tr>\n
Duret\u00e9 Brinell<\/td>\n1100 MPa<\/strong><\/td>\n1400 MPa<\/strong><\/td>\n<\/tr>\n
Duret\u00e9 Vickers<\/td>\n1246 MPa<\/strong><\/td>\n2500 MPa<\/strong><\/td>\n<\/tr>\n
Point de fusion<\/td>\n1964\u00b0C<\/strong><\/td>\n3180\u00b0C<\/strong><\/td>\n<\/tr>\n
Point d’\u00e9bullition<\/td>\n3695\u00b0C<\/strong><\/td>\n5600\u00b0C<\/strong><\/td>\n<\/tr>\n
Conductivit\u00e9 thermique<\/td>\n150 W\/mK<\/strong><\/td>\n48 W\/mK<\/strong><\/td>\n<\/tr>\n
Coefficient de dilatation thermique<\/td>\n8,2 \u00b5m\/mK<\/strong><\/td>\n6,2 \u00b5m\/mK<\/strong><\/td>\n<\/tr>\n
Chaleur sp\u00e9cifique<\/td>\n0,242 J\/g\u00b7K<\/span><\/strong><\/td>\n0,13 J\/g\u00b7K<\/strong><\/td>\n<\/tr>\n
Temp\u00e9rature de fusion<\/td>\n21,5 kJ\/mole<\/strong><\/td>\n33,2 kJ\/mole<\/strong><\/td>\n<\/tr>\n
Chaleur de vaporisation<\/td>\n493 kJ\/mole<\/span><\/strong><\/td>\n715 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 rhodium et du rh\u00e9nium, deux \u00e9l\u00e9ments chimiques comparables du tableau p\u00e9riodique.\u00a0Il contient \u00e9galement des descriptions de base et des applications des deux \u00e9l\u00e9ments.\u00a0Rhodium contre Rh\u00e9nium. 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":"\nRhodium et Rh\u00e9nium - 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 rhodium et du rh\u00e9nium, deux \u00e9l\u00e9ments chimiques comparables du tableau p\u00e9riodique. 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