{"id":163,"count":0,"description":"<div class=\"pt-20\">\r\n\r\n<img class=\"alignright\" src=\"\/wp-content\/uploads\/2025\/02\/a17046a2a3907907b6b0.png\" alt=\"\" width=\"348\" height=\"348\" \/><strong>Qu'est-ce que la c\u00e9ramique spinelle d'aluminate de magn\u00e9sium (MgAl\u2082O\u2084) ?<\/strong>\r\n\r\nReaction precursor formulation: MgO\u00b7Al\u2082O\u2083\r\nCommon abbreviation: Spinel (MA)\r\n\r\nMagnesium aluminate spinel ceramic, with the chemical formula MgAl\u2082O\u2084, is an advanced ceramic material widely used for crucibles or as liners in the melting industry. Its main component is MgAl\u2082O\u2084. Its dense and vitrified structure provides higher thermal shock resistance. Magnesium aluminate spinel can be further categorized into magnesia-rich spinel and alumina-rich spinel, based on the varying content of the two key components\u2014magnesia and alumina\u2014in the synthesized spinel.\r\n<p data-start=\"172\" data-end=\"212\"><strong>Propri\u00e9t\u00e9s et avantages des mat\u00e9riaux<\/strong><\/p>\r\n<p class=\"\" data-start=\"213\" data-end=\"314\">Par rapport aux r\u00e9fractaires en magn\u00e9sie-chrome, le spinelle d'aluminate de magn\u00e9sium offre les avantages suivants :<\/p>\r\n\r\n<ul data-start=\"316\" data-end=\"508\">\r\n \t<li class=\"\" data-start=\"316\" data-end=\"446\">\r\n<p class=\"\" data-start=\"318\" data-end=\"446\">R\u00e9sistance sup\u00e9rieure aux atmosph\u00e8res r\u00e9ductrices (CO, par exemple), aux gaz contenant du soufre (SO\u2082\/SO\u2083) et aux vapeurs de m\u00e9taux alcalins (K\u2082O, Na\u2082O).<\/p>\r\n<\/li>\r\n \t<li class=\"\" data-start=\"447\" data-end=\"508\">\r\n<p class=\"\" data-start=\"449\" data-end=\"508\">Excellente r\u00e9sistance aux chocs thermiques et \u00e0 la corrosion<\/p>\r\n<\/li>\r\n<\/ul>\r\n<\/div>\r\n<a class=\"pro-detail-btn\" href=\"https:\/\/weiert-ceramics.com\/fr\/contact\/\">CONTACTEZ-NOUS<\/a>\r\n\r\n<strong>Propri\u00e9t\u00e9s du spinelle d'aluminate de magn\u00e9sium (MA-spinel)<\/strong>\r\n<table border=\"1\" width=\"100%\" cellspacing=\"0\">\r\n<tbody>\r\n<tr>\r\n<td colspan=\"3\" align=\"center\" valign=\"center\" height=\"30\">\r\n<p align=\"center\"><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/strong><strong>\u00a0\u00a0\u00a0<\/strong><strong>P<\/strong><strong>ropri\u00e9t\u00e9s des <\/strong><strong>MA-S<\/strong><strong>pinel<\/strong><strong>\u00a0<\/strong><strong>\u00a0<\/strong><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/strong><strong>WEIERT<\/strong><\/p>\r\n<\/td>\r\n<\/tr>\r\n<tr>\r\n<td colspan=\"3\" align=\"center\" valign=\"center\" height=\"30\">\r\n<p align=\"center\"><strong>\u00a0<\/strong><strong>Fritt\u00e9 <\/strong><strong>Composition chimique<\/strong><strong>\u00a0<\/strong><\/p>\r\n<\/td>\r\n<\/tr>\r\n<tr>\r\n<td align=\"center\" valign=\"center\" width=\"819\" height=\"30\">MgAl\u2082O\u2084 (%)<\/td>\r\n<td colspan=\"2\" align=\"center\" valign=\"center\" height=\"30\">\r\n<p align=\"center\">98.2<\/p>\r\n<\/td>\r\n<\/tr>\r\n<tr>\r\n<td align=\"center\" valign=\"center\" height=\"30\">CaO (%)<\/td>\r\n<td colspan=\"2\" align=\"center\" valign=\"center\" height=\"30\">\r\n<p align=\"center\">0.48<\/p>\r\n<\/td>\r\n<\/tr>\r\n<tr>\r\n<td align=\"center\" valign=\"center\" height=\"30\">Fe\u2082O\u2083 (%)<\/td>\r\n<td colspan=\"2\" align=\"center\" valign=\"center\" height=\"30\">\r\n<p align=\"center\">&lt; 0.23<\/p>\r\n<\/td>\r\n<\/tr>\r\n<tr>\r\n<td align=\"center\" valign=\"center\" height=\"30\">SiO\u2082 (%)<\/td>\r\n<td colspan=\"2\" align=\"center\" valign=\"center\" height=\"30\">\r\n<p align=\"center\">0.27<\/p>\r\n<\/td>\r\n<\/tr>\r\n<tr>\r\n<td colspan=\"3\" align=\"center\" valign=\"center\" height=\"30\">\r\n<p align=\"center\"><strong>Fritt\u00e9 <\/strong><strong>T<\/strong><strong>hermiques et <\/strong><strong>P<\/strong><strong>hysical <\/strong><strong>P<\/strong><strong>propri\u00e9t\u00e9s <\/strong><\/p>\r\n<\/td>\r\n<\/tr>\r\n<tr>\r\n<td colspan=\"2\" align=\"center\" valign=\"center\" height=\"30\">Densit\u00e9 (g\/cm3)<\/td>\r\n<td align=\"center\" valign=\"center\" width=\"818\" height=\"30\">\r\n<p align=\"center\">3.4<\/p>\r\n<\/td>\r\n<\/tr>\r\n<tr>\r\n<td colspan=\"2\" align=\"center\" valign=\"center\" height=\"30\">Conductivit\u00e9 thermique (W\/m.K)<\/td>\r\n<td align=\"center\" valign=\"center\" height=\"30\">\r\n<p align=\"center\">5.9<\/p>\r\n<\/td>\r\n<\/tr>\r\n<tr>\r\n<td colspan=\"2\" align=\"center\" valign=\"center\" height=\"30\">Coefficient de dilatation thermique (dL\/L.K.10^6)<\/td>\r\n<td align=\"center\" valign=\"center\" height=\"30\">\r\n<p align=\"center\">7.5<\/p>\r\n<\/td>\r\n<\/tr>\r\n<tr>\r\n<td colspan=\"3\" align=\"center\" valign=\"center\" height=\"30\">\r\n<p align=\"center\"><strong>Propri\u00e9t\u00e9s des poudres<\/strong><\/p>\r\n<\/td>\r\n<\/tr>\r\n<tr>\r\n<td colspan=\"2\" align=\"center\" valign=\"center\" height=\"30\">Taille m\u00e9diane des particules 50% (10-\u2076 m)<\/td>\r\n<td align=\"center\" valign=\"center\" height=\"30\">\r\n<p align=\"center\">40<\/p>\r\n<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n*Les valeurs repr\u00e9sentent les propri\u00e9t\u00e9s typiques des mat\u00e9riaux et peuvent varier en fonction de la configuration du produit et du processus de fabrication. Pour plus d'informations, n'h\u00e9sitez pas \u00e0 contacter <a href=\"https:\/\/weiert-ceramics.com\/fr\/contact\/\">nous contacter<\/a>.\r\n\r\n<strong>Application de la c\u00e9ramique spinelle d'aluminate de magn\u00e9sium<\/strong>\r\nLe spinelle d'aluminate de magn\u00e9sium, avec son faible coefficient d'expansion thermique apr\u00e8s frittage, est couramment utilis\u00e9 pour fabriquer des creusets et des rev\u00eatements pour l'industrie de la fusion. Par exemple, les creusets en spinelle d'aluminate de magn\u00e9sium sont tr\u00e8s r\u00e9sistants \u00e0 la corrosion par l'acier n\u00e9odyme-fer-bore en fusion et peuvent \u00eatre utilis\u00e9s pour la fusion d'aimants permanents ou de mat\u00e9riaux \u00e0 base de terres rares. En outre, il existe un potentiel inexploit\u00e9 important pour l'application des c\u00e9ramiques spinelles d'aluminate de magn\u00e9sium dans les processus de fusion d'alliages.<strong>\r\n<\/strong>\r\n\r\n<strong>Spinelle d'aluminate de magn\u00e9sium Produit<\/strong>\r\n<div class=\"row pt-20\">\r\n<div class=\"col-md-3 col-sm-6\" style=\"text-align: center\"><img class=\"alignnone\" src=\"\/wp-content\/uploads\/2025\/04\/d60934ad38ba8277d081.jpg\" alt=\"\" width=\"861\" height=\"861\" \/>\r\n<a href=\"https:\/\/weiert-ceramics.com\/fr\/category\/products\/ceramic-crucibles\/magnesium-aluminate-spinel-crucible-mgal2o4\/\"><strong>Creuset de spinelle MA<\/strong><\/a><\/div>\r\n<\/div>\r\n<a class=\"pro-detail-btn\" href=\"https:\/\/weiert-ceramics.com\/fr\/contact\/\">CONTACTEZ-NOUS<\/a>","link":"https:\/\/weiert-ceramics.com\/fr\/materials\/magnesium-aluminate-spinel-ceramic-mgal%e2%82%82o%e2%82%84\/","name":"C\u00e9ramique spinelle d\u2019aluminate de magn\u00e9sium (MgAl\u2082O\u2084)","slug":"magnesium-aluminate-spinel-ceramic-mgal%e2%82%82o%e2%82%84","taxonomy":"category","parent":111,"meta":[],"acf":[],"z_taxonomy_image_url":"https:\/\/weiert-ceramics.com\/wp-content\/uploads\/2025\/02\/a17046a2a3907907b6b0.png","yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.1 (Yoast SEO v27.2) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>MA Spinel for High Performance Applications - Weiert Ceramics Technology Co., Ltd.<\/title>\n<meta name=\"description\" content=\"Discover Magnesium Aluminum Spinel, also known as MA Spinel. 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