{"id":115472,"date":"2022-04-24T16:20:19","date_gmt":"2022-04-24T15:20:19","guid":{"rendered":"https:\/\/material-properties.org\/beryllium-et-magnesium-comparaison-proprietes\/"},"modified":"2022-04-25T10:19:22","modified_gmt":"2022-04-25T09:19:22","slug":"beryllium-et-magnesium-comparaison-proprietes","status":"publish","type":"post","link":"https:\/\/material-properties.org\/fr\/beryllium-et-magnesium-comparaison-proprietes\/","title":{"rendered":"B\u00e9ryllium et Magn\u00e9sium &#8211; Comparaison &#8211; Propri\u00e9t\u00e9s"},"content":{"rendered":"<p><em>Cet article contient une comparaison des principales propri\u00e9t\u00e9s thermiques et atomiques du b\u00e9ryllium et du magn\u00e9sium, deux \u00e9l\u00e9ments chimiques comparables du tableau p\u00e9riodique.\u00a0Il contient \u00e9galement des descriptions de base et des applications des deux \u00e9l\u00e9ments.\u00a0B\u00e9ryllium vs Magn\u00e9sium.<\/em><\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter size-full wp-image-105429\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/12\/beryllium-and-magnesium-comparison.png\" alt=\"b\u00e9ryllium et magn\u00e9sium - comparaison\" width=\"1000\" height=\"900\" srcset=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/12\/beryllium-and-magnesium-comparison.png 1000w, https:\/\/material-properties.org\/wp-content\/uploads\/2020\/12\/beryllium-and-magnesium-comparison-300x270.png 300w, https:\/\/material-properties.org\/wp-content\/uploads\/2020\/12\/beryllium-and-magnesium-comparison-768x691.png 768w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><\/p>\n<div  class=\"lgc-column lgc-grid-parent lgc-grid-50 lgc-tablet-grid-50 lgc-mobile-grid-100 lgc-equal-heights \"><div  class=\"inside-grid-column\">\n<div class=\"su-spoiler su-spoiler-style-modern-light su-spoiler-icon-plus su-spoiler-closed\" data-scroll-offset=\"0\" data-anchor-in-url=\"no\"><div class=\"su-spoiler-title\" tabindex=\"0\" role=\"button\"><span class=\"su-spoiler-icon\"><\/span>Comparer le b\u00e9ryllium avec un autre \u00e9l\u00e9ment<\/div><div class=\"su-spoiler-content su-u-clearfix su-u-trim\">\n<div class=\"su-divider su-divider-style-dotted\" style=\"margin:25px 0;border-width:3px;border-color:#999999\"><\/div>\n<p><a href=\"https:\/\/material-properties.org\/beryllium-and-oxygen-comparison-properties\/\"><img decoding=\"async\" loading=\"lazy\" class=\"alignleft\" title=\"Comparer avec Oxyg\u00e8ne\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/10\/Oxygen-properties-price-application-production-150x150.png\" alt=\"Oxyg\u00e8ne - Propri\u00e9t\u00e9s - Prix - Applications - Production\" width=\"150\" height=\"150\" \/><\/a><\/p>\n<p><a href=\"https:\/\/material-properties.org\/beryllium-and-aluminium-comparison-properties\/\"><img decoding=\"async\" loading=\"lazy\" class=\"alignleft\" title=\"Comparer avec l'aluminium\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/10\/Aluminium-properties-price-application-production-150x150.png\" alt=\"Aluminium - Propri\u00e9t\u00e9s - Prix - Applications - Production\" width=\"150\" height=\"150\" \/><\/a><\/p>\n<p><a href=\"https:\/\/material-properties.org\/beryllium-and-nitrogen-comparison-properties\/\"><img decoding=\"async\" loading=\"lazy\" class=\"alignleft\" title=\"Comparer avec l'azote\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/10\/Nitrogen-properties-price-application-production-150x150.png\" alt=\"Azote - Propri\u00e9t\u00e9s - Prix - Applications - Production\" width=\"150\" height=\"150\" \/><\/a><\/p>\n<p><a href=\"https:\/\/material-properties.org\/beryllium-and-magnesium-comparison-properties\/\"><img decoding=\"async\" loading=\"lazy\" class=\"alignleft\" title=\"Comparer avec Magn\u00e9sium\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/10\/Magnesium-properties-price-application-production-150x150.png\" alt=\"Magn\u00e9sium - Propri\u00e9t\u00e9s - Prix - Applications - Production\" width=\"150\" height=\"150\" \/><\/a><\/p>\n<p><a href=\"https:\/\/material-properties.org\/beryllium-and-copper-comparison-properties\/\"><img decoding=\"async\" loading=\"lazy\" class=\"alignleft\" title=\"Comparer avec Cuivre\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/10\/Copper-properties-price-application-production-150x150.png\" alt=\"Cuivre - Propri\u00e9t\u00e9s - Prix - Applications - Production\" width=\"150\" height=\"150\" \/><\/a><\/p>\n<p><a href=\"https:\/\/material-properties.org\/beryllium-and-chlorine-comparison-properties\/\"><img decoding=\"async\" loading=\"lazy\" class=\"alignleft\" title=\"Comparer avec le chlore\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/10\/Chlorine-properties-price-application-production-150x150.png\" alt=\"Chlore - Propri\u00e9t\u00e9s - Prix - Applications - Production\" width=\"150\" height=\"150\" \/><\/a><\/p>\n<\/div><\/div>\n<\/div><\/div>\n<div  class=\"lgc-column lgc-grid-parent lgc-grid-50 lgc-tablet-grid-50 lgc-mobile-grid-100 lgc-equal-heights \"><div  class=\"inside-grid-column\">\n<div class=\"su-spoiler su-spoiler-style-modern-light su-spoiler-icon-plus su-spoiler-closed\" data-scroll-offset=\"0\" data-anchor-in-url=\"no\"><div class=\"su-spoiler-title\" tabindex=\"0\" role=\"button\"><span class=\"su-spoiler-icon\"><\/span>Comparer le magn\u00e9sium avec un autre \u00e9l\u00e9ment<\/div><div class=\"su-spoiler-content su-u-clearfix su-u-trim\">\n<div class=\"su-divider su-divider-style-dotted\" style=\"margin:25px 0;border-width:3px;border-color:#999999\"><\/div>\n<p><a href=\"https:\/\/material-properties.org\/Lithium-and-Magnesium-comparison-properties\/\"><img decoding=\"async\" loading=\"lazy\" class=\"alignleft\" title=\"Comparer avec Lithium\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/10\/Lithium-properties-price-application-production-150x150.png\" alt=\"Lithium - Propri\u00e9t\u00e9s - Prix - Applications - Production\" width=\"150\" height=\"150\" \/><\/a><\/p>\n<p><a href=\"https:\/\/material-properties.org\/Beryllium-and-Magnesium-comparison-properties\/\"><img decoding=\"async\" loading=\"lazy\" class=\"alignleft\" title=\"Comparer avec B\u00e9ryllium\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/10\/Beryllium-properties-price-application-production-150x150.png\" alt=\"B\u00e9ryllium - Propri\u00e9t\u00e9s - Prix - Applications - Production\" width=\"150\" height=\"150\" \/><\/a><\/p>\n<p><a href=\"https:\/\/material-properties.org\/Oxygen-and-Magnesium-comparison-properties\/\"><img decoding=\"async\" loading=\"lazy\" class=\"alignleft\" title=\"Comparer avec Oxyg\u00e8ne\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/10\/Oxygen-properties-price-application-production-150x150.png\" alt=\"Oxyg\u00e8ne - Propri\u00e9t\u00e9s - Prix - Applications - Production\" width=\"150\" height=\"150\" \/><\/a><\/p>\n<p><a href=\"https:\/\/material-properties.org\/Sodium-and-Magnesium-comparison-properties\/\"><img decoding=\"async\" loading=\"lazy\" class=\"alignleft\" title=\"Comparer avec le sodium\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/10\/Sodium-properties-price-application-production-150x150.png\" alt=\"Sodium - Propri\u00e9t\u00e9s - Prix - Applications - Production\" width=\"150\" height=\"150\" \/><\/a><\/p>\n<p><a href=\"https:\/\/material-properties.org\/Magnesium-and-Calcium-comparison-properties\/\"><img decoding=\"async\" loading=\"lazy\" class=\"alignleft\" title=\"Comparer avec Calcium\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/10\/Calcium-properties-price-application-production-150x150.png\" alt=\"Calcium - Propri\u00e9t\u00e9s - Prix - Applications - Production\" width=\"150\" height=\"150\" \/><\/a><\/p>\n<p><a href=\"https:\/\/material-properties.org\/Magnesium-and-Potassium-comparison-properties\/\"><img decoding=\"async\" loading=\"lazy\" class=\"alignleft\" title=\"Comparer avec Potassium\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/10\/Potassium-properties-price-application-production-150x150.png\" alt=\"Potassium - Propri\u00e9t\u00e9s - Prix - Applications - Production\" width=\"150\" height=\"150\" \/><\/a><\/p>\n<p><a href=\"https:\/\/material-properties.org\/Magnesium-and-Chlorine-comparison-properties\/\"><img decoding=\"async\" loading=\"lazy\" class=\"alignleft\" title=\"Comparer avec le chlore\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/10\/Chlorine-properties-price-application-production-150x150.png\" alt=\"Chlore - Propri\u00e9t\u00e9s - Prix - Applications - Production\" width=\"150\" height=\"150\" \/><\/a><\/p>\n<p><a href=\"https:\/\/material-properties.org\/Magnesium-and-Zinc-comparison-properties\/\"><img decoding=\"async\" loading=\"lazy\" class=\"alignleft\" title=\"Comparer avec le zinc\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/10\/Zinc-properties-price-application-production-150x150.png\" alt=\"Zinc - Propri\u00e9t\u00e9s - Prix - Applications - Production\" width=\"150\" height=\"150\" \/><\/a><\/p>\n<p><a href=\"https:\/\/material-properties.org\/Magnesium-and-Bromine-comparison-properties\/\"><img decoding=\"async\" loading=\"lazy\" class=\"alignleft\" title=\"Comparer avec Brome\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/10\/Bromine-properties-price-application-production-150x150.png\" alt=\"Brome - Propri\u00e9t\u00e9s - Prix - Applications - Production\" width=\"150\" height=\"150\" \/><\/a><\/p>\n<p><a href=\"https:\/\/material-properties.org\/Magnesium-and-Aluminium-comparison-properties\/\"><img decoding=\"async\" loading=\"lazy\" class=\"alignleft\" title=\"Comparer avec l'aluminium\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/10\/Aluminium-properties-price-application-production-150x150.png\" alt=\"Aluminium - Propri\u00e9t\u00e9s - Prix - Applications - Production\" width=\"150\" height=\"150\" \/><\/a><\/p>\n<p><a href=\"https:\/\/material-properties.org\/Magnesium-and-Iron-comparison-properties\/\"><img decoding=\"async\" loading=\"lazy\" class=\"alignleft\" title=\"Comparer avec Fer\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/10\/Iron-properties-price-application-production-150x150.png\" alt=\"Fer - Propri\u00e9t\u00e9s - Prix - Applications - Production\" width=\"150\" height=\"150\" \/><\/a><\/p>\n<p><a href=\"https:\/\/material-properties.org\/Magnesium-and-Copper-comparison-properties\/\"><img decoding=\"async\" loading=\"lazy\" class=\"alignleft\" title=\"Comparer avec Cuivre\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/10\/Copper-properties-price-application-production-150x150.png\" alt=\"Cuivre - Propri\u00e9t\u00e9s - Prix - Applications - Production\" width=\"150\" height=\"150\" \/><\/a><\/p>\n<\/div><\/div>\n<\/div><\/div>\n<div class=\"su-spacer\" style=\"height:20px\"><\/div>\n<div class=\"su-heading su-heading-style-modern-1-dark su-heading-align-left\" id=\"\" style=\"font-size:13px;margin-bottom:20px\"><div class=\"su-heading-inner\">\n<h2>B\u00e9ryllium et Magn\u00e9sium &#8211; \u00c0 propos des \u00e9l\u00e9ments<\/h2>\n<\/div><\/div>\n<div  class=\"lgc-column lgc-grid-parent lgc-grid-50 lgc-tablet-grid-50 lgc-mobile-grid-100 lgc-equal-heights \"><div  class=\"inside-grid-column\">\n<div class=\"sue-icon-text sue-panel-clickable\" data-url=\"https:\/\/material-properties.org\/beryllium-properties-applications-price-production\/\" data-target=\"self\" style=\"min-height:58px;padding-left:72px;color:#333333\"><div class=\"sue-icon-text-icon\" style=\"color:#5dbcd2;font-size:48px;width:48px;height:48px\"><img src=\"icon : cercle d'informations\" style=\"width:48px\" alt=\"\" \/><\/div><div class=\"sue-icon-text-content sue-content-wrap\" style=\"color:#333333\">\n<h3>B\u00e9ryllium<\/h3>\n<p>Le b\u00e9ryllium est un m\u00e9tal dur et gris\u00e2tre naturellement pr\u00e9sent dans les roches min\u00e9rales, le charbon, le sol et la poussi\u00e8re volcanique.\u00a0L&rsquo;utilisation commerciale du b\u00e9ryllium n\u00e9cessite l&rsquo;utilisation d&rsquo;un \u00e9quipement de contr\u00f4le de la poussi\u00e8re appropri\u00e9 et de contr\u00f4les industriels en tout temps en raison de la toxicit\u00e9 des poussi\u00e8res contenant du b\u00e9ryllium inhal\u00e9es qui peuvent provoquer une maladie allergique chronique potentiellement mortelle chez certaines personnes appel\u00e9e b\u00e9rylliose.\u00a0Le b\u00e9ryllium a une grande section efficace de diffusion pour les neutrons de haute \u00e9nergie, environ 6 granges pour les \u00e9nergies sup\u00e9rieures \u00e0 environ 10 keV.\u00a0Par cons\u00e9quent, il fonctionne comme un r\u00e9flecteur de neutrons et un mod\u00e9rateur de neutrons, ralentissant efficacement les neutrons \u00e0 l&rsquo;\u00e9nergie thermique.\u00a0\u00c9tant donn\u00e9 que le b\u00e9rylium a une \u00e9nergie de seuil tr\u00e8s faible pour l&rsquo;\u00e9mission de neutrons, il peut \u00eatre utilis\u00e9 comme source de neutrons dans les r\u00e9acteurs nucl\u00e9aires.\u00a0La source Sb-Be est bas\u00e9e sur la r\u00e9action (\u03b3,n) (c&rsquo;est-\u00e0-dire qu&rsquo;elle \u00e9met des photoneutrons).<br \/>\n<\/p><\/div><div style=\"clear:both;height:0\"><\/div><\/div>\n<\/div><\/div>\n<div  class=\"lgc-column lgc-grid-parent lgc-grid-50 lgc-tablet-grid-50 lgc-mobile-grid-100 lgc-equal-heights \"><div  class=\"inside-grid-column\">\n<div class=\"sue-icon-text sue-panel-clickable\" data-url=\"https:\/\/material-properties.org\/magnesium-properties-applications-price-production\/\" data-target=\"self\" style=\"min-height:58px;padding-left:72px;color:#333333\"><div class=\"sue-icon-text-icon\" style=\"color:#5dbcd2;font-size:48px;width:48px;height:48px\"><img src=\"icon : cercle d'informations\" style=\"width:48px\" alt=\"\" \/><\/div><div class=\"sue-icon-text-content sue-content-wrap\" style=\"color:#333333\">\n<h3>Magn\u00e9sium<\/h3>\n<p>Le magn\u00e9sium est un solide gris brillant qui ressemble physiquement aux cinq autres \u00e9l\u00e9ments de la deuxi\u00e8me colonne (groupe 2 ou m\u00e9taux alcalino-terreux) du tableau p\u00e9riodique: tous les \u00e9l\u00e9ments du groupe 2 ont la m\u00eame configuration \u00e9lectronique dans la couche \u00e9lectronique externe et une structure cristalline similaire.<br \/>\n<\/p><\/div><div style=\"clear:both;height:0\"><\/div><\/div>\n<\/div><\/div>\n<div class=\"su-divider su-divider-style-dotted\" style=\"margin:25px 0;border-width:3px;border-color:#999999\"><\/div>\n<div  class=\"lgc-column lgc-grid-parent lgc-grid-50 lgc-tablet-grid-50 lgc-mobile-grid-100 lgc-equal-heights \"><div  class=\"inside-grid-column\">\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter size-medium wp-image-92269\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/09\/Beryllium-periodic-table-300x224.png\" alt=\"B\u00e9ryllium dans le tableau p\u00e9riodique\" width=\"300\" height=\"224\" srcset=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/09\/Beryllium-periodic-table-300x224.png 300w, https:\/\/material-properties.org\/wp-content\/uploads\/2020\/09\/Beryllium-periodic-table-768x574.png 768w, https:\/\/material-properties.org\/wp-content\/uploads\/2020\/09\/Beryllium-periodic-table.png 854w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/p>\n<\/div><\/div>\n<div  class=\"lgc-column lgc-grid-parent lgc-grid-50 lgc-tablet-grid-50 lgc-mobile-grid-100 lgc-equal-heights \"><div  class=\"inside-grid-column\">\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter size-medium wp-image-92399\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/09\/Magnesium-periodic-table-300x243.png\" alt=\"Magn\u00e9sium dans le tableau p\u00e9riodique\" width=\"300\" height=\"243\" srcset=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/09\/Magnesium-periodic-table-300x243.png 300w, https:\/\/material-properties.org\/wp-content\/uploads\/2020\/09\/Magnesium-periodic-table-768x622.png 768w, https:\/\/material-properties.org\/wp-content\/uploads\/2020\/09\/Magnesium-periodic-table.png 842w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/p>\n<p style=\"text-align: left;\"><\/p><\/div><\/div>\n<p style=\"text-align: center;\">Source : www.luciteria.com<\/p>\n<div class=\"su-spacer\" style=\"height:20px\"><\/div>\n<div class=\"su-heading su-heading-style-modern-1-dark su-heading-align-left\" id=\"\" style=\"font-size:13px;margin-bottom:20px\"><div class=\"su-heading-inner\">\n<h2>B\u00e9ryllium et Magn\u00e9sium &#8211; Applications<\/h2>\n<\/div><\/div>\n<div  class=\"lgc-column lgc-grid-parent lgc-grid-50 lgc-tablet-grid-50 lgc-mobile-grid-100 lgc-equal-heights \"><div  class=\"inside-grid-column\">\n<div class=\"sue-shadow-wrap sue-content-wrap sue-shadow-inline-no\"><div class=\"sue-shadow sue-shadow-style-vertical\">\n<div class=\"sue-panel\" data-url=\"\" data-target=\"self\" style=\"background-color:#ffffff;color:#333333;border-radius:0px;-moz-border-radius:0px;-webkit-border-radius:0px;box-shadow:none;-moz-box-shadow:none;-webkit-box-shadow:none;border:1px solid #cccccc\"><div class=\"sue-panel-content sue-content-wrap\" style=\"padding:15px;text-align:left\">\n<h3><a href=\"https:\/\/material-properties.org\/beryllium-properties-applications-price-production\/\">B\u00e9ryllium<\/a><\/h3>\n<p>Le b\u00e9rylium peut \u00eatre utilis\u00e9 comme agent d&rsquo;alliage dans la production de b\u00e9ryllium-cuivre, les diagnostics de d\u00e9tection par rayons X, la fabrication de p\u00e9riph\u00e9riques informatiques, dans les r\u00e9acteurs nucl\u00e9aires comme mod\u00e9rateurs et r\u00e9flecteurs de neutrons.\u00a080% du b\u00e9ryllium utilis\u00e9 va dans les alliages cuivre b\u00e9ryllium.\u00a0La combinaison d&rsquo;un poids l\u00e9ger et d&rsquo;une r\u00e9sistance \u00e9lev\u00e9e \u00e0 des temp\u00e9ratures extr\u00eames rend les alliages de b\u00e9ryllium m\u00e9tal et aluminium b\u00e9ryllium id\u00e9aux pour une utilisation dans des applications a\u00e9rospatiales hautes performances telles que les composants de fus\u00e9es.\u00a0La transparence aux rayons X rend le m\u00e9tal b\u00e9ryllium pur essentiel dans les \u00e9quipements de s\u00e9curit\u00e9 et les technologies d&rsquo;imagerie m\u00e9dicale \u00e0 haute r\u00e9solution, telles que la mammographie pour d\u00e9tecter le cancer du sein.\u00a0Le cuivre au b\u00e9ryllium est le plus dur et le plus r\u00e9sistant de tous les alliages de cuivre (UTS jusqu&rsquo;\u00e0 1 400 MPa), \u00e0 l&rsquo;\u00e9tat enti\u00e8rement trait\u00e9 thermiquement et travaill\u00e9 \u00e0 froid.<\/p>\n<\/div><\/div>\n<\/div><\/div>\n<\/div><\/div>\n<div  class=\"lgc-column lgc-grid-parent lgc-grid-50 lgc-tablet-grid-50 lgc-mobile-grid-100 lgc-equal-heights \"><div  class=\"inside-grid-column\">\n<div class=\"sue-shadow-wrap sue-content-wrap sue-shadow-inline-no\"><div class=\"sue-shadow sue-shadow-style-vertical\">\n<div class=\"sue-panel\" data-url=\"\" data-target=\"self\" style=\"background-color:#ffffff;color:#333333;border-radius:0px;-moz-border-radius:0px;-webkit-border-radius:0px;box-shadow:none;-moz-box-shadow:none;-webkit-box-shadow:none;border:1px solid #cccccc\"><div class=\"sue-panel-content sue-content-wrap\" style=\"padding:15px;text-align:left\">\n<h3><a href=\"https:\/\/material-properties.org\/magnesium-properties-applications-price-production\/\">Magn\u00e9sium<\/a><\/h3>\n<p>Le magn\u00e9sium est le troisi\u00e8me m\u00e9tal de structure le plus couramment utilis\u00e9, apr\u00e8s le fer et l&rsquo;aluminium.[35] Les principales applications du magn\u00e9sium sont, dans l&rsquo;ordre: les alliages d&rsquo;aluminium, le moulage sous pression (alli\u00e9 au zinc), l&rsquo;\u00e9limination du soufre dans la production de fer et d&rsquo;acier, et la production de titane dans le proc\u00e9d\u00e9 Kroll. Les alliages de magn\u00e9sium sont utilis\u00e9s dans une grande vari\u00e9t\u00e9 d&rsquo;applications structurelles et non structurelles. Les applications structurelles incluent les \u00e9quipements automobiles, industriels, de manutention, commerciaux et a\u00e9rospatiaux. Les alliages de magn\u00e9sium sont utilis\u00e9s pour les pi\u00e8ces qui fonctionnent \u00e0 des vitesses \u00e9lev\u00e9es et doivent donc \u00eatre l\u00e9gers pour minimiser les forces d&rsquo;inertie. Les applications commerciales comprennent les outils portatifs, les ordinateurs portables, les bagages et les \u00e9chelles, les automobiles (par exemple, les volants et les colonnes, les cadres de si\u00e8ge, les bo\u00eetiers de transmission). Magnox (alliage),<\/p>\n<\/div><\/div>\n<\/div><\/div>\n<\/div><\/div>\n<div class=\"su-heading su-heading-style-modern-1-dark su-heading-align-left\" id=\"\" style=\"font-size:13px;margin-bottom:20px\"><div class=\"su-heading-inner\">\n<h2>B\u00e9ryllium et Magn\u00e9sium &#8211; Comparaison dans le tableau<\/h2>\n<\/div><\/div>\n<div  class=\"lgc-column lgc-grid-parent lgc-grid-100 lgc-tablet-grid-100 lgc-mobile-grid-100 lgc-equal-heights \"><div  class=\"inside-grid-column\">\n<table class=\"a\">\n<tbody>\n<tr class=\"b\">\n<td style=\"text-align: center;\">\u00c9l\u00e9ment<\/td>\n<td style=\"text-align: center;\"><strong>B\u00e9ryllium<\/strong><\/td>\n<td style=\"text-align: center;\"><strong>Magn\u00e9sium<\/strong><\/td>\n<\/tr>\n<tr class=\"c\">\n<td style=\"text-align: center;\">Densit\u00e9<\/td>\n<td style=\"text-align: center;\"><strong>1,848g\/cm3<\/strong><\/td>\n<td style=\"text-align: center;\"><strong>1,738 g\/cm3<\/strong><\/td>\n<\/tr>\n<tr class=\"c\">\n<td style=\"text-align: center;\">R\u00e9sistance \u00e0 la traction ultime<\/td>\n<td style=\"text-align: center;\"><strong>345 MPa<\/strong><\/td>\n<td style=\"text-align: center;\"><strong>200 MPa<\/strong><\/td>\n<\/tr>\n<tr class=\"c\">\n<td style=\"text-align: center;\">Limite d&rsquo;\u00e9lasticit\u00e9<\/td>\n<td style=\"text-align: center;\"><strong>N \/ A<\/strong><\/td>\n<td style=\"text-align: center;\"><strong>N \/ A<\/strong><\/td>\n<\/tr>\n<tr class=\"c\">\n<td style=\"text-align: center;\">Module de Young<\/td>\n<td style=\"text-align: center;\"><strong>287 GPa<\/strong><\/td>\n<td style=\"text-align: center;\"><strong>45 GPa<\/strong><\/td>\n<\/tr>\n<tr class=\"c\">\n<td style=\"text-align: center;\">\u00c9chelle de Mohs<\/td>\n<td style=\"text-align: center;\"><strong>5,5<\/strong><\/td>\n<td style=\"text-align: center;\"><strong>2,5<\/strong><\/td>\n<\/tr>\n<tr class=\"c\">\n<td style=\"text-align: center;\">Duret\u00e9 Brinell<\/td>\n<td style=\"text-align: center;\"><strong>600 MPa<\/strong><\/td>\n<td style=\"text-align: center;\"><strong>260 MPa<\/strong><\/td>\n<\/tr>\n<tr class=\"c\">\n<td style=\"text-align: center;\">Duret\u00e9 Vickers<\/td>\n<td style=\"text-align: center;\"><strong>1670 MPa<\/strong><\/td>\n<td style=\"text-align: center;\"><strong>N \/ A<\/strong><\/td>\n<\/tr>\n<tr class=\"c\">\n<td style=\"text-align: center;\">Point de fusion<\/td>\n<td style=\"text-align: center;\"><strong>1278\u00a0\u00b0C<\/strong><\/td>\n<td style=\"text-align: center;\"><strong>649\u00a0\u00b0C<\/strong><\/td>\n<\/tr>\n<tr class=\"c\">\n<td style=\"text-align: center;\">Point d&rsquo;\u00e9bullition<\/td>\n<td style=\"text-align: center;\"><strong>2469 \u00b0C<\/strong><\/td>\n<td style=\"text-align: center;\"><strong>1090 \u00b0C<\/strong><\/td>\n<\/tr>\n<tr class=\"c\">\n<td style=\"text-align: center;\">Conductivit\u00e9 thermique<\/td>\n<td style=\"text-align: center;\"><strong>200W\/mK<\/strong><\/td>\n<td style=\"text-align: center;\"><strong>156 W\/mK<\/strong><\/td>\n<\/tr>\n<tr class=\"c\">\n<td style=\"text-align: center;\">Coefficient de dilatation thermique<\/td>\n<td style=\"text-align: center;\"><strong>11,3 \u00b5m\/mK<\/strong><\/td>\n<td style=\"text-align: center;\"><strong>24,8 \u00b5m\/mK<\/strong><\/td>\n<\/tr>\n<tr class=\"c\">\n<td style=\"text-align: center;\">Chaleur sp\u00e9cifique<\/td>\n<td style=\"text-align: center;\"><strong><span style=\"text-align: start;\">1,82 J\/g\u00b7K<\/span><\/strong><\/td>\n<td style=\"text-align: center;\"><strong>1,02 J\/g\u00b7K<\/strong><\/td>\n<\/tr>\n<tr class=\"c\">\n<td style=\"text-align: center;\">Temp\u00e9rature de fusion<\/td>\n<td style=\"text-align: center;\"><strong><span style=\"text-align: start;\">12,2 kJ\/mol<\/span><\/strong><\/td>\n<td style=\"text-align: center;\"><strong>8,954 kJ\/mol<\/strong><\/td>\n<\/tr>\n<tr class=\"c\">\n<td style=\"text-align: center;\">Chaleur de vaporisation<\/td>\n<td style=\"text-align: center;\"><strong><span style=\"text-align: start;\">292,4 kJ\/mol<\/span><\/strong><\/td>\n<td style=\"text-align: center;\"><strong>127,4 kJ\/mol<\/strong><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Cet article contient une comparaison des principales propri\u00e9t\u00e9s thermiques et atomiques du b\u00e9ryllium et du magn\u00e9sium, deux \u00e9l\u00e9ments chimiques comparables du tableau p\u00e9riodique.\u00a0Il contient \u00e9galement des descriptions de base et des applications des deux \u00e9l\u00e9ments.\u00a0B\u00e9ryllium vs Magn\u00e9sium. 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":"<!-- This site is optimized with the Yoast SEO plugin v21.2 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>B\u00e9ryllium et Magn\u00e9sium - 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 b\u00e9ryllium et du magn\u00e9sium, 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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