{"id":114494,"date":"2022-02-07T21:29:22","date_gmt":"2022-02-07T20:29:22","guid":{"rendered":"https:\/\/material-properties.org\/scandium-et-aluminium-comparaison-proprietes\/"},"modified":"2022-03-24T14:14:21","modified_gmt":"2022-03-24T13:14:21","slug":"scandium-et-aluminium-comparaison-proprietes","status":"publish","type":"post","link":"https:\/\/material-properties.org\/fr\/scandium-et-aluminium-comparaison-proprietes\/","title":{"rendered":"Scandium et Aluminium – Comparaison – Propri\u00e9t\u00e9s"},"content":{"rendered":"

Cet article contient une comparaison des principales propri\u00e9t\u00e9s thermiques et atomiques du scandium et de l’aluminium, deux \u00e9l\u00e9ments chimiques comparables du tableau p\u00e9riodique.\u00a0Il contient \u00e9galement des descriptions de base et des applications des deux \u00e9l\u00e9ments.\u00a0Scandium contre Aluminium.<\/em><\/p>\n

\"scandium<\/p>\n

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

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

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

\n
<\/span>Comparer l'aluminium avec un autre \u00e9l\u00e9ment<\/div>
\n
<\/div>\n

\"Hydrog\u00e8ne<\/a><\/p>\n

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

\"B\u00e9ryllium<\/a><\/p>\n

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

\"Oxyg\u00e8ne<\/a><\/p>\n

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

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

\"Magn\u00e9sium<\/a><\/p>\n

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

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

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

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

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

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

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

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

<\/div>\n
\n

Scandium et Aluminium – \u00c0 propos des \u00e9l\u00e9ments<\/h2>\n<\/div><\/div>\n
\n
\"\"<\/div>
\n

Scandium<\/h3>\n

Le scandium est un \u00e9l\u00e9ment de bloc d m\u00e9tallique blanc argent\u00e9, il a \u00e9t\u00e9 historiquement parfois class\u00e9 comme un \u00e9l\u00e9ment de terre rare, avec l’yttrium et les lanthanides.
\n<\/p><\/div>

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

Aluminium<\/h3>\n

L’aluminium est un m\u00e9tal blanc argent\u00e9, doux, non magn\u00e9tique et ductile du groupe du bore. En masse, l’aluminium repr\u00e9sente environ 8 % de la cro\u00fbte terrestre; c’est le troisi\u00e8me \u00e9l\u00e9ment le plus abondant apr\u00e8s l’oxyg\u00e8ne et le silicium et le m\u00e9tal le plus abondant dans la cro\u00fbte, bien qu’il soit moins courant dans le manteau ci-dessous.<\/p>\n<\/div>

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

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

\n

\"Aluminium<\/p>\n

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

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

<\/div>\n
\n

Scandium et Aluminium – Applications<\/h2>\n<\/div><\/div>\n
\n
\n
\n

Scandium<\/a><\/h3>\n

La principale application du scandium en poids est dans les alliages aluminium-scandium pour les composants mineurs de l’industrie a\u00e9rospatiale.\u00a0Ces alliages contiennent entre 0,1% et 0,5% de scandium.\u00a0Sc am\u00e9liore consid\u00e9rablement les alliages d’aluminium, augmentant la r\u00e9sistance, la r\u00e9sistance \u00e0 la corrosion et la soudabilit\u00e9.<\/p>\n<\/div><\/div>\n<\/div><\/div>\n<\/div><\/div>\n

\n
\n
\n

Aluminium<\/a><\/h3>\n

L’aluminium et ses alliages sont largement utilis\u00e9s dans les applications a\u00e9rospatiales, automobiles, architecturales, lithographiques, d’emballage, \u00e9lectriques et \u00e9lectroniques.\u00a0C’est le principal mat\u00e9riau de construction de l’industrie a\u00e9ronautique tout au long de son histoire.\u00a0Environ 70% des cellules des avions civils commerciaux sont fabriqu\u00e9es \u00e0 partir d’alliages d’aluminium, et sans aluminium, l’aviation civile ne serait pas \u00e9conomiquement viable.\u00a0L’industrie automobile utilise d\u00e9sormais l’aluminium comme pi\u00e8ces moul\u00e9es de moteur, roues, radiateurs et de plus en plus comme pi\u00e8ces de carrosserie.\u00a0L’aluminium 6111 et l’alliage d’aluminium 2008 sont largement utilis\u00e9s pour les panneaux ext\u00e9rieurs de carrosserie automobile.\u00a0Les blocs-cylindres et les carters sont souvent coul\u00e9s en alliages d’aluminium.<\/p>\n<\/div><\/div>\n<\/div><\/div>\n<\/div><\/div>\n

\n

Scandium et Aluminium – 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>\nScandium<\/b><\/td>\nAluminium<\/b><\/td>\n<\/tr>\n
Densit\u00e9<\/td>\n2,985 g\/cm3<\/strong><\/td>\n2,7 g\/cm3<\/strong><\/td>\n<\/tr>\n
R\u00e9sistance \u00e0 la traction ultime<\/td>\n200 MPa<\/strong><\/td>\n90 MPa (pur), 600 MPa (alliages)<\/strong><\/td>\n<\/tr>\n
Limite d’\u00e9lasticit\u00e9<\/td>\nN \/ A<\/strong><\/td>\n11 MPa (pur), 400 MPa (alliages)<\/strong><\/td>\n<\/tr>\n
Module de Young<\/td>\n74,4 GPa<\/strong><\/td>\n70 GPa<\/strong><\/td>\n<\/tr>\n
\u00c9chelle de Mohs<\/td>\nN \/ A<\/strong><\/td>\n2,8<\/strong><\/td>\n<\/tr>\n
Duret\u00e9 Brinell<\/td>\n740 – 1200 MPa<\/strong><\/td>\n240 MPa<\/strong><\/td>\n<\/tr>\n
Duret\u00e9 Vickers<\/td>\nN \/ A<\/strong><\/td>\n167 MPa<\/strong><\/td>\n<\/tr>\n
Point de fusion<\/td>\n1541\u00b0C<\/strong><\/td>\n660\u00b0C<\/strong><\/td>\n<\/tr>\n
Point d’\u00e9bullition<\/td>\n2830\u00b0C<\/strong><\/td>\n2467\u00b0C<\/strong><\/td>\n<\/tr>\n
Conductivit\u00e9 thermique<\/td>\n15,8 W\/mK<\/strong><\/td>\n237 W\/mK<\/strong><\/td>\n<\/tr>\n
Coefficient de dilatation thermique<\/td>\n10,2 \u00b5m\/mK<\/strong><\/td>\n23,1 \u00b5m\/mK<\/strong><\/td>\n<\/tr>\n
Chaleur sp\u00e9cifique<\/td>\n0,6 J\/g\u00b7K<\/span><\/strong><\/td>\n0,9 J\/g\u00b7K<\/strong><\/td>\n<\/tr>\n
Temp\u00e9rature de fusion<\/td>\n14,1 kJ\/mole<\/strong><\/td>\n10,79 kJ\/mole<\/strong><\/td>\n<\/tr>\n
Chaleur de vaporisation<\/td>\n314,2 kJ\/mole<\/span><\/strong><\/td>\n293,4 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 scandium et de l’aluminium, deux \u00e9l\u00e9ments chimiques comparables du tableau p\u00e9riodique.\u00a0Il contient \u00e9galement des descriptions de base et des applications des deux \u00e9l\u00e9ments.\u00a0Scandium contre Aluminium. 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":"\nScandium et Aluminium - 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 scandium et de l'aluminium, deux \u00e9l\u00e9ments chimiques comparables du tableau p\u00e9riodique. 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