{"id":114453,"date":"2022-02-07T05:02:58","date_gmt":"2022-02-07T04:02:58","guid":{"rendered":"https:\/\/material-properties.org\/gallium-et-arsenic-comparaison-proprietes\/"},"modified":"2022-03-23T08:20:58","modified_gmt":"2022-03-23T07:20:58","slug":"gallium-et-arsenic-comparaison-proprietes","status":"publish","type":"post","link":"https:\/\/material-properties.org\/fr\/gallium-et-arsenic-comparaison-proprietes\/","title":{"rendered":"Gallium et Arsenic – Comparaison – Propri\u00e9t\u00e9s"},"content":{"rendered":"

Cet article contient une comparaison des principales propri\u00e9t\u00e9s thermiques et atomiques du gallium et de l’arsenic, deux \u00e9l\u00e9ments chimiques comparables du tableau p\u00e9riodique.\u00a0Il contient \u00e9galement des descriptions de base et des applications des deux \u00e9l\u00e9ments.\u00a0Gallium contre Arsenic.<\/em><\/p>\n

\"gallium<\/p>\n

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

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

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

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

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

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

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

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

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

<\/div>\n
\n

Gallium et arsenic – \u00c0 propos des \u00e9l\u00e9ments<\/h2>\n<\/div><\/div>\n
\n
\"\"<\/div>
\n

Gallium<\/h3>\n

Le gallium pr\u00e9sente des similitudes avec les autres m\u00e9taux du groupe, l’aluminium, l’indium et le thallium.\u00a0Le gallium n’est pas pr\u00e9sent sous forme d’\u00e9l\u00e9ment libre dans la nature, mais sous forme de compos\u00e9s de gallium(III) \u00e0 l’\u00e9tat de traces dans les minerais de zinc et dans la bauxite.
\n<\/p><\/div>

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

Arsenic<\/h3>\n

L’arsenic est pr\u00e9sent dans de nombreux min\u00e9raux, g\u00e9n\u00e9ralement en combinaison avec du soufre et des m\u00e9taux, mais aussi sous forme de cristal \u00e9l\u00e9mentaire pur.\u00a0L’arsenic est un m\u00e9tallo\u00efde.<\/p>\n<\/div>

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

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

\n

\"Arsenic<\/p>\n

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

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

<\/div>\n
\n

Gallium et Arsenic – Applications<\/h2>\n<\/div><\/div>\n
\n
\n
\n

Gallium<\/a><\/h3>\n

La consommation de gallium est centr\u00e9e sur l’industrie des supraconducteurs.\u00a0Les applications semi-conductrices dominent la demande commerciale de gallium, repr\u00e9sentant 98 % du total.\u00a0Lorsqu’il est alli\u00e9 \u00e0 l’arsenic pour produire de l’ars\u00e9niure de gallium (GaAs), il peut convertir l’\u00e9lectricit\u00e9 en lumi\u00e8re.\u00a0En raison de ces propri\u00e9t\u00e9s, il est utilis\u00e9 dans les LED et s’est av\u00e9r\u00e9 produire moins de chaleur que le silicium, ce qui le rend adapt\u00e9 \u00e0 une utilisation dans les superordinateurs.<\/p>\n<\/div><\/div>\n<\/div><\/div>\n<\/div><\/div>\n

\n
\n
\n

Arsenic<\/a><\/h3>\n

L’arsenic est utilis\u00e9 comme agent dopant dans les semi-conducteurs (ars\u00e9niure de gallium) pour les dispositifs \u00e0 semi-conducteurs.\u00a0Il est \u00e9galement utilis\u00e9 en bronzage, en pyrotechnie et pour durcir la grenaille.\u00a0Les compos\u00e9s d’arsenic peuvent \u00eatre utilis\u00e9s pour fabriquer du verre sp\u00e9cial et pr\u00e9server le bois.<\/p>\n<\/div><\/div>\n<\/div><\/div>\n<\/div><\/div>\n

\n

Gallium et arsenic – 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>\nGallium<\/b><\/td>\nArsenic<\/b><\/td>\n<\/tr>\n
Densit\u00e9<\/td>\n5,904 g\/cm3<\/strong><\/td>\n5,727 g\/cm3<\/strong><\/td>\n<\/tr>\n
R\u00e9sistance \u00e0 la traction ultime<\/td>\n15 MPa<\/strong><\/td>\nN \/ A<\/strong><\/td>\n<\/tr>\n
Limite d’\u00e9lasticit\u00e9<\/td>\n8 MPa<\/strong><\/td>\nN \/ A<\/strong><\/td>\n<\/tr>\n
Module de Young<\/td>\n9,8 GPa<\/strong><\/td>\n8 GPa<\/strong><\/td>\n<\/tr>\n
\u00c9chelle de Mohs<\/td>\n1,5<\/strong><\/td>\n3,5<\/strong><\/td>\n<\/tr>\n
Duret\u00e9 Brinell<\/td>\n60 MPa<\/strong><\/td>\n1440 MPa<\/strong><\/td>\n<\/tr>\n
Duret\u00e9 Vickers<\/td>\nN \/ A<\/strong><\/td>\nN \/ A<\/strong><\/td>\n<\/tr>\n
Point de fusion<\/td>\n29,76\u00b0C<\/strong><\/td>\n817\u00b0C<\/strong><\/td>\n<\/tr>\n
Point d’\u00e9bullition<\/td>\n2204\u00b0C<\/strong><\/td>\n614\u00b0C<\/strong><\/td>\n<\/tr>\n
Conductivit\u00e9 thermique<\/td>\n40,6 W\/mK<\/strong><\/td>\n50W\/mK<\/strong><\/td>\n<\/tr>\n
Coefficient de dilatation thermique<\/td>\n18 \u00b5m\/mK<\/strong><\/td>\n5,6 \u00b5m\/mK<\/strong><\/td>\n<\/tr>\n
Chaleur sp\u00e9cifique<\/td>\n0,37 J\/g\u00b7K<\/span><\/strong><\/td>\n0,33 J\/g\u00b7K<\/strong><\/td>\n<\/tr>\n
Temp\u00e9rature de fusion<\/td>\n5,59 kJ\/mole<\/strong><\/td>\nN \/ A<\/strong><\/td>\n<\/tr>\n
Chaleur de vaporisation<\/td>\n258,7 kJ\/mole<\/span><\/strong><\/td>\n34,76 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 gallium et de l’arsenic, deux \u00e9l\u00e9ments chimiques comparables du tableau p\u00e9riodique.\u00a0Il contient \u00e9galement des descriptions de base et des applications des deux \u00e9l\u00e9ments.\u00a0Gallium contre Arsenic. 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":"\nGallium et Arsenic - 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 gallium et de l'arsenic, deux \u00e9l\u00e9ments chimiques comparables du tableau p\u00e9riodique. 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