{"id":6604,"date":"2021-04-04T12:03:07","date_gmt":"2021-04-04T12:03:07","guid":{"rendered":"https:\/\/www.aluminaceramicball.com\/?p=6604"},"modified":"2023-05-13T14:53:37","modified_gmt":"2023-05-13T14:53:37","slug":"zastosowania-proszku-tlenku-glinu-w-przemysle","status":"publish","type":"post","link":"https:\/\/www.aluminaceramicball.com\/pl\/zastosowania-proszku-tlenku-glinu-w-przemysle\/","title":{"rendered":"Charakterystyka i zastosowanie proszku tlenku glinu w przemy\u015ble"},"content":{"rendered":"

Najpopularniejsze z nich to \u03b1-Al2O3 i \u03b3-Al2O3. Korund w naturze to \u03b1-Al2O3, sze\u015bciok\u0105tne, \u015bci\u015ble upakowane kryszta\u0142y. \u03b1-Al2O3 ma temperatur\u0119 topnienia 2015\u00b115\u00b0C, g\u0119sto\u015b\u0107 3,965g\/cm3 i twardo\u015b\u0107 8,8. Jest nierozpuszczalny w wodzie, kwasach i zasadach. \u03b3-Al2O3 jest sze\u015bciennym, \u015bci\u015ble upakowanym kryszta\u0142em, nierozpuszczalnym w wodzie, ale rozpuszczalnym w kwasach i zasadach, i jest typowym tlenkiem amfoterycznym.<\/p>\n

    \n
  1. G\u0142\u00f3wnym sk\u0142adnikiem rubinu i szafiru jest tlenek glinu. R\u00f3\u017cni\u0105 si\u0119 one kolorem ze wzgl\u0119du na inne zanieczyszczenia. Rubin zawiera tlenek chromu i jest czerwony, podczas gdy szafir zawiera tlenek \u017celaza i tlenek tytanu i jest niebieski.<\/li>\n
  2. W g\u0142\u00f3wnym sk\u0142adniku boksytu zawarto\u015b\u0107 tlenku glinu jest najwy\u017csza. W przemy\u015ble boksyt jest oczyszczany do tlenku glinu w procesie Bayera, a nast\u0119pnie przekszta\u0142cany w aluminium metaliczne w procesie Halla-Heroulta.<\/li>\n
  3. Tlenek glinu jest powodem, dla kt\u00f3rego metaliczne aluminium nie ulega \u0142atwo korozji w powietrzu. Czyste metaliczne aluminium \u0142atwo reaguje z tlenem w powietrzu, tworz\u0105c cienk\u0105 warstw\u0119 tlenku aluminium pokrywaj\u0105c\u0105 powierzchni\u0119 aluminium wystawion\u0105 na dzia\u0142anie powietrza. Ta warstwa tlenku aluminium mo\u017ce zapobiec dalszemu utlenianiu aluminium. Grubo\u015b\u0107 i w\u0142a\u015bciwo\u015bci tej warstwy tlenku mo\u017cna zwi\u0119kszy\u0107 w procesie zwanym anodowaniem.<\/li>\n
  4. Aluminium jest dobrym przewodnikiem elektryczno\u015bci i ciep\u0142a. Krystaliczna forma szmergla aluminiowego nadaje si\u0119 do materia\u0142\u00f3w \u015bciernych i narz\u0119dzi tn\u0105cych ze wzgl\u0119du na wysok\u0105 twardo\u015b\u0107.<\/li>\n
  5. Proszek tlenku glinu<\/a> jest cz\u0119sto u\u017cywany jako medium do chromatografii.<\/li>\n<\/ol>","protected":false},"excerpt":{"rendered":"

    The common ones are \u03b1-Al2O3 and \u03b3-Al2O3. Corundum in nature is \u03b1-Al2O3, hexagonal close-packed crystals. \u03b1-Al2O3 has a melting point of 2015\u00b115\u00b0C, a density of 3.965g\/cm3, and a hardness of 8.8. It is insoluble in water, acid or alkali. \u03b3-Al2O3 is a cubic close-packed crystal, insoluble in water, but soluble in acid and alkali, and […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_templately_pack_id":"","_templately_imported_at":"","_templately_source":"","_templately_import_session_id":"","site-sidebar-layout":"default","site-content-layout":"default","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"default","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center 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