{"id":137,"count":0,"description":"
\r\n\r\nCer\u00e1mica de al\u00famina (Al\u2082O\u2083) y <\/b><\/strong>corind\u00f3n.\"\"<\/b><\/strong>\r\nAlumina ceramics (Al\u2082O\u2083),\u00a0 are a key member of advanced ceramics family, made from high-purity synthetic alumina powder. The process involves molding the powder into green bodies with pressure-forming equipment, followed by high-temperature sintering. For high-precision components, CNC machining is often used before or after sintering.\r\n\r\nWith the rise of 3D printing, alumina photopolymerization has become an important shaping method\u00a0as well.\r\nAlumina ceramics come in various forms based on crystal structure, mainly including \u03b1-Al\u2082O\u2083, \u03b2-Al\u2082O\u2083, and \u03b3-Al\u2082O\u2083. After high-temperature sintering (typically over 1200\u00b0C), all structures transform into \u03b1-Al\u2082O\u2083, also called corundum.\r\n\r\nThe most commonly used alumina ceramics contain 90% or more Al\u2082O\u2083, with varieties such as 95%, 99%, 99.7%, and 99.99% purity. Alumina with 99.99% purity is often semi-transparent or transparent, known as sapphire.\r\n\r\n<\/div>\r\nPropiedades principales de la cer\u00e1mica de al\u00famina <\/b><\/strong>Ventajas:<\/b><\/strong>\r\n<\/strong>High Melting Point\r\nHigh Hardness\r\nChemical Corrosion Resistance\r\nOutstanding Dielectric Properties\r\nSuperior Optical Properties (for 99.99% Transparent Alumina)\r\n\r\n<\/strong>Desventajas:<\/b><\/strong>\r\n<\/strong>Baja tenacidad, relativamente quebradizo.\r\n<\/b><\/strong>\r\n\r\nCONT\u00c1CTENOS<\/a>\r\n\r\nGeneral\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n
propiedad<\/td>\r\nUnidad<\/td>\r\n95%Al2O3<\/td>\r\n99%Al2O3<\/td>\r\n99,7%Al2O3<\/td>\r\n99,99%Al2O3<\/td>\r\n<\/tr>\r\n
Color<\/td>\r\n<\/td>\r\nblanco<\/td>\r\nMarfil<\/td>\r\nMarfil<\/td>\r\nIcy\/Blanco apagado<\/td>\r\n<\/tr>\r\n
Densidad<\/td>\r\ng\/cm\u00b3<\/td>\r\n3.72<\/td>\r\n3.9<\/td>\r\n3.92<\/td>\r\n3.98<\/td>\r\n<\/tr>\r\n
Absorci\u00f3n de agua<\/td>\r\n%<\/td>\r\n0<\/td>\r\n0<\/td>\r\n0<\/td>\r\n0<\/td>\r\n<\/tr>\r\n
Permeabilidad al gas<\/td>\r\natms-cc\/seg<\/td>\r\nherm\u00e9tico al gas <10-\u00b9\u00ba<\/td>\r\nherm\u00e9tico al gas <10-\u00b9\u00ba<\/td>\r\nherm\u00e9tico al gas <10-\u00b9\u00ba<\/td>\r\nherm\u00e9tico al gas <10-\u00b9\u00ba<\/td>\r\n<\/tr>\r\n
Transmisi\u00f3n \u00f3ptica<\/td>\r\n\u03bcm<\/td>\r\n<\/td>\r\n<\/td>\r\n<\/td>\r\n0.3 ~ 5<\/td>\r\n<\/tr>\r\n
P\u00e9rdida por reflexi\u00f3n<\/td>\r\ndB<\/td>\r\n<\/td>\r\n<\/td>\r\n<\/td>\r\n0.2<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n \r\n\r\nPropiedades mec\u00e1nicas\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n
Propiedad<\/td>\r\nUnidad<\/td>\r\n95%Al2O3<\/td>\r\n99%Al2O3<\/td>\r\n99,7%Al2O3<\/td>\r\n99,99%Al2O3<\/td>\r\n<\/tr>\r\n
Dureza Vickers (500 gm)<\/td>\r\nGPa (kg\/mm2 )<\/td>\r\n11.5 (1175)<\/td>\r\n12.7 (1300)<\/td>\r\n15\uff081530\uff09<\/td>\r\n19.6\uff082000\uff09<\/td>\r\n<\/tr>\r\n
Dureza Rockwell<\/td>\r\nR45N<\/td>\r\n79<\/td>\r\n81<\/td>\r\n86<\/td>\r\n91<\/td>\r\n<\/tr>\r\n
Resistencia a la compresi\u00f3n @ 25\u00b0C<\/td>\r\nMPa (psi x 10\u00b3)<\/td>\r\n1827 (265)<\/td>\r\n2241 (325)<\/td>\r\n2240 (325)<\/td>\r\n2413 (350)<\/td>\r\n<\/tr>\r\n
Flexural Strength (MOR)\r\n(3 point)\u00a0 @ 25\u00b0C<\/td>\r\nMPa (psi x 10\u00b3)<\/td>\r\n310 (45)<\/td>\r\n393 (57)<\/td>\r\n379 (55)<\/td>\r\n455 (66)<\/td>\r\n<\/tr>\r\n
Resistencia a la fractura (viga entallada)<\/td>\r\nMPam1\/2<\/td>\r\n3-4<\/td>\r\n4-5<\/td>\r\n3-4<\/td>\r\n5-6<\/td>\r\n<\/tr>\r\n
M\u00f3dulo de elasticidad<\/td>\r\nGPa (psi x 10\u2076)<\/td>\r\n303 (44)<\/td>\r\n345 (50)<\/td>\r\n379 (55)<\/td>\r\n393 (57)<\/td>\r\n<\/tr>\r\n
Relaci\u00f3n Poissons<\/td>\r\n<\/td>\r\n0.22<\/td>\r\n0.23<\/td>\r\n0.23<\/td>\r\n0.23<\/td>\r\n<\/tr>\r\n
M\u00f3dulo de tracci\u00f3n @ 25\u00b0C<\/td>\r\nMPa (psi x 10\u00b3)<\/td>\r\n151 (22)<\/td>\r\n221 (32)<\/td>\r\n200 (29)<\/td>\r\n275 (40)<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n \r\n\r\nPropiedades t\u00e9rmicas\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n
Propiedad<\/td>\r\nUnidad<\/td>\r\n95%Al2O3<\/td>\r\n99%Al2O3<\/td>\r\n99,7%Al2O3<\/td>\r\n99,99%Al2O3<\/td>\r\n<\/tr>\r\n
Conductividad t\u00e9rmica @ 25\u00b0C<\/td>\r\nW\/m-K<\/td>\r\n20<\/td>\r\n30<\/td>\r\n30<\/td>\r\n35<\/td>\r\n<\/tr>\r\n
Capacidad calor\u00edfica espec\u00edfica<\/td>\r\nJ\/g-\u00b0C<\/td>\r\n0.88<\/td>\r\n0.88<\/td>\r\n0.90<\/td>\r\n<\/td>\r\n<\/tr>\r\n
C.T.E. 25 - 100\u00b0C<\/td>\r\nx 10-\u2076\/C<\/td>\r\n6.1<\/td>\r\n6.2<\/td>\r\n6.5<\/td>\r\n6.5<\/td>\r\n<\/tr>\r\n
C.T.E. 25\u00b0-300\u00b0C<\/td>\r\nx 10-\u2076\/C<\/td>\r\n7.0<\/td>\r\n6.8<\/td>\r\n7.8<\/td>\r\n7.8<\/td>\r\n<\/tr>\r\n
C.T.E. 25\u00b0-600\u00b0C<\/td>\r\nx 10-\u2076\/C<\/td>\r\n7.7<\/td>\r\n7.6<\/td>\r\n8.0<\/td>\r\n8.1<\/td>\r\n<\/tr>\r\n
Temp. m\u00e1x. servicio aire\/inertizado<\/td>\r\nFahrenheit (\u00b0F)<\/td>\r\n3000<\/td>\r\n3000<\/td>\r\n3000<\/td>\r\n3000<\/td>\r\n<\/tr>\r\n
Celsius (\u00b0C)<\/td>\r\n1650<\/td>\r\n1650<\/td>\r\n1650<\/td>\r\n1650<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n \r\n\r\nPropiedades el\u00e9ctricas\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n
Propiedad<\/td>\r\nUnidad<\/td>\r\n95%Al2O3<\/td>\r\n99%Al2O3<\/td>\r\n99,7%Al2O3<\/td>\r\n99,99%Al2O3<\/td>\r\n<\/tr>\r\n
Constante diel\u00e9ctrica a 1 MHz<\/td>\r\n<\/td>\r\n9.2<\/td>\r\n9.5<\/td>\r\n10<\/td>\r\n<\/td>\r\n<\/tr>\r\n
Constante diel\u00e9ctrica @ Gigahercios<\/td>\r\n<\/td>\r\n11<\/td>\r\n9.8<\/td>\r\n9.6<\/td>\r\n<\/td>\r\n<\/tr>\r\n
P\u00e9rdida diel\u00e9ctrica @ 1 MHz<\/td>\r\n<\/td>\r\n0.0009<\/td>\r\n0.0005<\/td>\r\n\u00a0< .0001<\/td>\r\n<\/td>\r\n<\/tr>\r\n
P\u00e9rdida diel\u00e9ctrica @ Gigahercios<\/td>\r\n<\/td>\r\n12.5<\/td>\r\n9.8<\/td>\r\n9.6<\/td>\r\n<\/td>\r\n<\/tr>\r\n
Rigidez diel\u00e9ctrica (espesor de 0,125\")<\/td>\r\nV\/mil<\/td>\r\n250<\/td>\r\n260<\/td>\r\n290<\/td>\r\n430<\/td>\r\n<\/tr>\r\n
Resistividad volum\u00e9trica @ 25\u00b0C<\/td>\r\nohmios-cm<\/td>\r\n> 1 x 10\u00b9\u2074<\/td>\r\n> 1 x 10\u00b9\u2074<\/td>\r\n> 1 x 10\u00b9\u2074<\/td>\r\n> 1 x 10\u00b9\u2074<\/td>\r\n<\/tr>\r\n
Resistividad volum\u00e9trica a 300\u00b0C<\/td>\r\nohmios-cm<\/td>\r\n5 x 10\u00b9\u00b2<\/td>\r\n8 x 10\u00b9\u00b9<\/td>\r\n3 x 10\u00b9\u00b2<\/td>\r\n1 x 10\u00b9\u00b3<\/td>\r\n<\/tr>\r\n
Resistividad volum\u00e9trica @ 500\u00b0C<\/td>\r\nohmios-cm<\/td>\r\n3 x 10\u2079<\/td>\r\n2 x 10\u2079<\/td>\r\n6 x 10\u00b9\u00ba<\/td>\r\n5 x 10\u00b9\u00b2<\/td>\r\n<\/tr>\r\n
Resistividad volum\u00e9trica @ 700\u00b0C<\/td>\r\nohmios-cm<\/td>\r\n3 x 10\u2078<\/td>\r\n2 x 10\u2078<\/td>\r\n6 x 10\u2079<\/td>\r\n1 x 10\u00b9\u00b2<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n

*The values represent typical material properties and may vary depending on product configuration and the manufacturing process. For further information, do not hesitate to contact us.<\/p>\r\nCONT\u00c1CTENOS<\/a>\r\n

Aplicaciones de la cer\u00e1mica de al\u00famina<\/b><\/strong><\/h3>\r\nLas cer\u00e1micas de al\u00famina se utilizan ampliamente en una amplia gama de campos industriales y biom\u00e9dicos, entre otros:\r\n
    \r\n \t
  • Dispositivos electr\u00f3nicos de vac\u00edo<\/strong><\/li>\r\n \t
  • Sustratos para circuitos de capa gruesa y fina<\/strong><\/li>\r\n \t
  • Aisladores de buj\u00edas<\/strong><\/li>\r\n \t
  • Componentes cer\u00e1micos textiles<\/strong><\/li>\r\n \t
  • Abrasivos, herramientas de rectificado y herramientas de corte cer\u00e1micas<\/strong><\/li>\r\n \t
  • Piezas estructurales de alta temperatura<\/strong><\/li>\r\n \t
  • El zafiro (99,99% Al\u2082O\u2083) puede utilizarse para periscopios, visores y lentes de instrumentos de medici\u00f3n.<\/b><\/strong><\/li>\r\n<\/ul>\r\n \r\n\r\nGrados de material cer\u00e1mico de al\u00famina-4 niveles de pureza<\/strong>\r\n
    \r\n
    \"\"\r\n95% Al\u00famina \uff08A12O3\uff09<\/strong><\/div>\r\n
    \"\"\r\n99% Al\u00famina \uff08A12O3\uff09<\/strong><\/div>\r\n
    \"\"\r\n99,7% Al\u00famina \uff08A12O3\uff09<\/strong><\/div>\r\n
    \"\"\r\n99.99% Al\u00famina ( A12O3)<\/strong><\/div>\r\n<\/div>\r\n \r\n\r\nMecanizado CNC Cer\u00e1mica de al\u00famina<\/strong>\r\nYixing WEIERT Ceramics Technology Co., Ltd. es un fabricante y exportador l\u00edder de cer\u00e1mica de al\u00famina. Con un departamento de investigaci\u00f3n y desarrollo (I+D) dedicado a los materiales cer\u00e1micos, innovamos continuamente y mejoramos el rendimiento de los materiales para satisfacer las diversas necesidades de nuestros clientes. A diferencia de los intermediarios comerciales, somos un fabricante directo con plenas capacidades internas, lo que nos permite controlar todo el proceso de producci\u00f3n de cer\u00e1mica t\u00e9cnica, desde la producci\u00f3n de materias primas y la sinterizaci\u00f3n hasta el mecanizado CNC. Desde 2016, hemos producido m\u00e1s de 5000 tipos de productos cer\u00e1micos de precisi\u00f3n para cientos de empresas.","link":"https:\/\/weiert-ceramics.com\/es\/materials\/alumina-ceramic-al2o3\/","name":"Cer\u00e1mica de al\u00famina (Al\u2082O\u2083)","slug":"alumina-ceramic-al2o3","taxonomy":"category","parent":111,"meta":[],"acf":[],"z_taxonomy_image_url":"https:\/\/weiert-ceramics.com\/wp-content\/uploads\/2025\/03\/b9b27a9325267ed3ba80.jpg","yoast_head":"\nAlumina Ceramic, Al2O3 Properties Explained - Weiert Ceramics Technology Co., Ltd.<\/title>\n<meta name=\"description\" content=\"Discover alumina ceramic, also known as Al2O3, a vital material in advanced ceramics. 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