{"id":114399,"date":"2022-02-05T03:26:35","date_gmt":"2022-02-05T02:26:35","guid":{"rendered":"https:\/\/material-properties.org\/holmium-et-ytterbium-comparaison-proprietes\/"},"modified":"2022-03-22T10:10:16","modified_gmt":"2022-03-22T09:10:16","slug":"holmium-et-ytterbium-comparaison-proprietes","status":"publish","type":"post","link":"https:\/\/material-properties.org\/fr\/holmium-et-ytterbium-comparaison-proprietes\/","title":{"rendered":"Holmium et Ytterbium – Comparaison – Propri\u00e9t\u00e9s"},"content":{"rendered":"

Cet article contient une comparaison des principales propri\u00e9t\u00e9s thermiques et atomiques de l’holmium 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.\u00a0Holmium contre Ytterbium.<\/em><\/p>\n

\"holmium<\/p>\n

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

Holmium et Ytterbium – \u00c0 propos des \u00e9l\u00e9ments<\/h2>\n<\/div><\/div>\n
\n
\"\"<\/div>
\n

Holmium<\/h3>\n

L’holmium fait partie de la s\u00e9rie des lanthanides, l’holmium est un \u00e9l\u00e9ment des terres rares.\u00a0L’holmium est un m\u00e9tal blanc argent\u00e9 relativement mou et mall\u00e9able.<\/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

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

\n

\"Ytterbium<\/p>\n

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

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

<\/div>\n
\n

Holmium et Ytterbium – Applications<\/h2>\n<\/div><\/div>\n
\n
\n
\n

Holmium<\/a><\/h3>\n

L’holmium a la force magn\u00e9tique la plus \u00e9lev\u00e9e de tous les \u00e9l\u00e9ments et est donc utilis\u00e9 pour cr\u00e9er les champs magn\u00e9tiques g\u00e9n\u00e9r\u00e9s artificiellement les plus puissants.\u00a0L’holmium peut absorber les neutrons, il est donc utilis\u00e9 dans les r\u00e9acteurs nucl\u00e9aires pour contr\u00f4ler une r\u00e9action en cha\u00eene.\u00a0Ses alliages sont utilis\u00e9s dans certains aimants.<\/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

Holmium 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>\nHolmium<\/b><\/td>\nYtterbium<\/b><\/td>\n<\/tr>\n
Densit\u00e9<\/td>\n8,795 g\/cm3<\/strong><\/td>\n6,57 g\/cm3<\/strong><\/td>\n<\/tr>\n
R\u00e9sistance \u00e0 la traction ultime<\/td>\n260 MPa<\/strong><\/td>\n69 MPa<\/strong><\/td>\n<\/tr>\n
Limite d’\u00e9lasticit\u00e9<\/td>\n220 MPa<\/strong><\/td>\n66 MPa<\/strong><\/td>\n<\/tr>\n
Module de Young<\/td>\n64,8 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>\n750 MPa<\/strong><\/td>\n340 MPa<\/strong><\/td>\n<\/tr>\n
Duret\u00e9 Vickers<\/td>\n490 MPa<\/strong><\/td>\n210 MPa<\/strong><\/td>\n<\/tr>\n
Point de fusion<\/td>\n1474\u00b0C<\/strong><\/td>\n819\u00b0C<\/strong><\/td>\n<\/tr>\n
Point d’\u00e9bullition<\/td>\n2600\u00b0C<\/strong><\/td>\n1196\u00b0C<\/strong><\/td>\n<\/tr>\n
Conductivit\u00e9 thermique<\/td>\n16W\/mK<\/strong><\/td>\n39W\/mK<\/strong><\/td>\n<\/tr>\n
Coefficient de dilatation thermique<\/td>\n11,2 \u00b5m\/mK<\/strong><\/td>\n26,3 \u00b5m\/mK<\/strong><\/td>\n<\/tr>\n
Chaleur sp\u00e9cifique<\/td>\n0,16 J\/g\u00b7K<\/span><\/strong><\/td>\n0,15 J\/g\u00b7K<\/strong><\/td>\n<\/tr>\n
Temp\u00e9rature de fusion<\/td>\n12,2 kJ\/mole<\/strong><\/td>\n7,66 kJ\/mole<\/strong><\/td>\n<\/tr>\n
Chaleur de vaporisation<\/td>\n241 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’holmium 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.\u00a0Holmium 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":"\nHolmium 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'holmium et de l'ytterbium, deux \u00e9l\u00e9ments chimiques comparables du tableau p\u00e9riodique. 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