{"id":137,"count":0,"description":"
\r\n\r\nCeramika z tlenku glinu (Al\u2082O\u2083) i <\/b><\/strong>korund.\"\"<\/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\nKluczowe w\u0142a\u015bciwo\u015bci ceramiki z tlenku glinu <\/b><\/strong>Zalety:<\/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>Wady:<\/b><\/strong>\r\n<\/strong>Niska wytrzyma\u0142o\u015b\u0107, wzgl\u0119dna krucho\u015b\u0107.\r\n<\/b><\/strong>\r\n\r\nKONTAKT Z NAMI<\/a>\r\n\r\nOg\u00f3lne\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n
w\u0142asno\u015b\u0107<\/td>\r\nJednostka<\/td>\r\n95%Al2O3<\/td>\r\n99%Al2O3<\/td>\r\n99,7%Al2O3<\/td>\r\n99.99%Al2O3<\/td>\r\n<\/tr>\r\n
Kolor<\/td>\r\n<\/td>\r\nbia\u0142y<\/td>\r\nKo\u015b\u0107 s\u0142oniowa<\/td>\r\nKo\u015b\u0107 s\u0142oniowa<\/td>\r\nIcy\/Off White<\/td>\r\n<\/tr>\r\n
G\u0119sto\u015b\u0107<\/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
Absorpcja wody<\/td>\r\n%<\/td>\r\n0<\/td>\r\n0<\/td>\r\n0<\/td>\r\n0<\/td>\r\n<\/tr>\r\n
Przepuszczalno\u015b\u0107 gazu<\/td>\r\natms-cc\/s<\/td>\r\ngazoszczelno\u015b\u0107 <10-\u00b9\u00ba<\/td>\r\ngazoszczelno\u015b\u0107 <10-\u00b9\u00ba<\/td>\r\ngazoszczelno\u015b\u0107 <10-\u00b9\u00ba<\/td>\r\ngazoszczelno\u015b\u0107 <10-\u00b9\u00ba<\/td>\r\n<\/tr>\r\n
Transmisja optyczna<\/td>\r\n\u03bcm<\/td>\r\n<\/td>\r\n<\/td>\r\n<\/td>\r\n0.3 ~ 5<\/td>\r\n<\/tr>\r\n
Utrata odbicia<\/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\nW\u0142a\u015bciwo\u015bci mechaniczne\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n
W\u0142a\u015bciwo\u015b\u0107<\/td>\r\nJednostka<\/td>\r\n95%Al2O3<\/td>\r\n99%Al2O3<\/td>\r\n99,7%Al2O3<\/td>\r\n99.99%Al2O3<\/td>\r\n<\/tr>\r\n
Twardo\u015b\u0107 Vickersa (500 g)<\/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
Twardo\u015b\u0107 Rockwella<\/td>\r\nR45N<\/td>\r\n79<\/td>\r\n81<\/td>\r\n86<\/td>\r\n91<\/td>\r\n<\/tr>\r\n
Wytrzyma\u0142o\u015b\u0107 na \u015bciskanie przy 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
Wytrzyma\u0142o\u015b\u0107 na z\u0142amanie (belka z karbem)<\/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
Modu\u0142 spr\u0119\u017cysto\u015bci<\/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
Wsp\u00f3\u0142czynnik 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
Modu\u0142 rozci\u0105gania @ 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\nW\u0142a\u015bciwo\u015bci termiczne\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n
W\u0142asno\u015b\u0107<\/td>\r\nJednostka<\/td>\r\n95%Al2O3<\/td>\r\n99%Al2O3<\/td>\r\n99,7%Al2O3<\/td>\r\n99.99%Al2O3<\/td>\r\n<\/tr>\r\n
Przewodno\u015b\u0107 cieplna przy 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
Pojemno\u015b\u0107 cieplna w\u0142a\u015bciwa<\/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
Maks. temperatura robocza powietrza\/czynnika oboj\u0119tnego<\/td>\r\nFahrenheita (\u00b0F)<\/td>\r\n3000<\/td>\r\n3000<\/td>\r\n3000<\/td>\r\n3000<\/td>\r\n<\/tr>\r\n
Celsjusza (\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\nW\u0142a\u015bciwo\u015bci elektryczne\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
W\u0142asno\u015b\u0107<\/td>\r\nJednostka<\/td>\r\n95%Al2O3<\/td>\r\n99%Al2O3<\/td>\r\n99,7%Al2O3<\/td>\r\n99.99%Al2O3<\/td>\r\n<\/tr>\r\n
Sta\u0142a dielektryczna przy 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
Sta\u0142a dielektryczna przy gigahercach<\/td>\r\n<\/td>\r\n11<\/td>\r\n9.8<\/td>\r\n9.6<\/td>\r\n<\/td>\r\n<\/tr>\r\n
Strata dielektryczna przy 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
Straty dielektryczne przy gigahercach<\/td>\r\n<\/td>\r\n12.5<\/td>\r\n9.8<\/td>\r\n9.6<\/td>\r\n<\/td>\r\n<\/tr>\r\n
Wytrzyma\u0142o\u015b\u0107 dielektryczna (grubo\u015b\u0107.125\")<\/td>\r\nV\/mil<\/td>\r\n250<\/td>\r\n260<\/td>\r\n290<\/td>\r\n430<\/td>\r\n<\/tr>\r\n
Rezystywno\u015b\u0107 obj\u0119to\u015bciowa @ 25\u00b0C<\/td>\r\nom-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
Rezystywno\u015b\u0107 obj\u0119to\u015bciowa @ 300\u00b0C<\/td>\r\nom-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
Rezystywno\u015b\u0107 obj\u0119to\u015bciowa @ 500\u00b0C<\/td>\r\nom-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
Rezystywno\u015b\u0107 obj\u0119to\u015bciowa @ 700\u00b0C<\/td>\r\nom-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\nKONTAKT Z NAMI<\/a>\r\n

Zastosowania ceramiki z tlenku glinu<\/b><\/strong><\/h3>\r\nCeramika z tlenku glinu jest szeroko stosowana w wielu dziedzinach przemys\u0142u i biomedycyny, w tym mi\u0119dzy innymi:\r\n
    \r\n \t
  • Pr\u00f3\u017cniowe urz\u0105dzenia elektroniczne<\/strong><\/li>\r\n \t
  • Pod\u0142o\u017ca do obwod\u00f3w grubo- i cienkowarstwowych<\/strong><\/li>\r\n \t
  • Izolatory \u015bwiec zap\u0142onowych<\/strong><\/li>\r\n \t
  • Komponenty tekstylno-ceramiczne<\/strong><\/li>\r\n \t
  • Materia\u0142y \u015bcierne, narz\u0119dzia szlifierskie i ceramiczne narz\u0119dzia tn\u0105ce<\/strong><\/li>\r\n \t
  • Wysokotemperaturowe cz\u0119\u015bci konstrukcyjne<\/strong><\/li>\r\n \t
  • Szafir (99,99% Al\u2082O\u2083) mo\u017ce by\u0107 stosowany w peryskopach, lunetach i obiektywach przyrz\u0105d\u00f3w pomiarowych.<\/b><\/strong><\/li>\r\n<\/ul>\r\n \r\n\r\nMateria\u0142y ceramiczne z tlenku glinu - 4 poziomy czysto\u015bci<\/strong>\r\n
    \r\n
    \"\"\r\n95% Tlenek glinu \uff08A12O3\uff09<\/strong><\/div>\r\n
    \"\"\r\n99% Tlenek glinu \uff08A12O3\uff09<\/strong><\/div>\r\n
    \"\"\r\n99.7% Tlenek glinu \uff08A12O3\uff09<\/strong><\/div>\r\n
    \"\"\r\n99.99% Tlenek glinu (A12O3)<\/strong><\/div>\r\n<\/div>\r\n \r\n\r\nObr\u00f3bka CNC ceramiki z tlenku glinu<\/strong>\r\nYixing WEIERT Ceramics Technology Co., Ltd. jest wiod\u0105cym producentem i eksporterem ceramiki z tlenku glinu. Dzi\u0119ki dedykowanemu dzia\u0142owi bada\u0144 i rozwoju (R&D) dla materia\u0142\u00f3w ceramicznych, stale wprowadzamy innowacje i zwi\u0119kszamy wydajno\u015b\u0107 materia\u0142\u00f3w, aby sprosta\u0107 r\u00f3\u017cnorodnym potrzebom naszych klient\u00f3w. W przeciwie\u0144stwie do po\u015brednik\u00f3w handlowych, jeste\u015bmy bezpo\u015brednim producentem z pe\u0142nymi mo\u017cliwo\u015bciami wewn\u0119trznymi, co pozwala nam kontrolowa\u0107 ca\u0142y proces produkcji ceramiki technicznej - od produkcji surowc\u00f3w i spiekania po obr\u00f3bk\u0119 CNC. Od 2016 roku wyprodukowali\u015bmy ponad 5000 rodzaj\u00f3w precyzyjnych produkt\u00f3w ceramicznych dla setek firm.","link":"https:\/\/weiert-ceramics.com\/pl\/materials\/alumina-ceramic-al2o3\/","name":"Ceramika aluminiowa (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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