
| AluminiumOxide | |
| Nambala ya CAS | 1344-28-1 |
| Fomula ya mankhwala | Al2O3 |
| Molar mass | 101.960 g · mol −1 |
| Maonekedwe | choyera cholimba |
| Fungo | wopanda fungo |
| Kuchulukana | 3.987g/cm3 |
| Malo osungunuka | 2,072°C(3,762°F;2,345K) |
| Malo otentha | 2,977°C(5,391°F;3,250K) |
| Kusungunuka m'madzi | chosasungunuka |
| Kusungunuka | osasungunuka mu zosungunulira zonse |
| logP | 0.3186 |
| Kuthekera kwa maginito (χ) | −37.0×10−6cm3/mol |
| Kutentha kwa matenthedwe | 30W·m−1·K−1 |
Mafotokozedwe a Kampani yaOkisidi ya Aluminiyamu
| Chizindikiro | KristaloMtundu wa Kapangidwe | Al2O3≥(%) | Mat yachilendo. ≤(%) | Kukula kwa Tinthu | ||
| Si | Fe | Mg | ||||
| UMAO3N | a | 99.9 | - | - | - | 1 ~ 5μm |
| UMAO4N | a | 99.99 | 0.003 | 0.003 | 0.003 | 100 ~ 150nm |
| UMAO5N | a | 99.999 | 0.0002 | 0.0002 | 0.0001 | 0.2 ~ 10μm |
| UMAO6N | a | 99.9999 | - | - | - | 1 ~ 10μm |
Kulongedza: Yopakidwa mu chidebe ndipo yotsekedwa mkati ndi cohesion ethene, kulemera konse ndi 20 kilogalamu pa chidebe chilichonse.
Kodi Aluminium Oxide imagwiritsidwa ntchito pa chiyani?
Alumina (Al2O3)Imagwira ntchito ngati zopangira zinthu zosiyanasiyana zapamwamba za ceramic komanso ngati chothandizira pakupanga mankhwala, kuphatikiza zokometsera, ma catalyst, ma microelectronics, mankhwala, makampani opanga ndege, ndi zina zamakono. Makhalidwe apamwamba a alumina angapereke amawapangitsa kukhala abwino kugwiritsidwa ntchito pazinthu zambiri. Zina mwa ntchito zomwe zimapezeka kwambiri kunja kwa kupanga aluminiyamu zalembedwa pansipa. Zodzaza. Popeza ndi zopanda mankhwala komanso zoyera, aluminiyamu oxide ndi chodzaza chomwe chimakonda kwambiri mapulasitiki. Galasi. Mapangidwe ambiri agalasi ali ndi aluminiyamu oxide ngati chosakaniza. Catalysis Aluminiyamu oxide imayambitsa machitidwe osiyanasiyana omwe ndi othandiza m'mafakitale. Kuyeretsa mpweya. Aluminiyamu oxide imagwiritsidwa ntchito kwambiri kuchotsa madzi m'mitsinje ya gasi. Yosakhazikika. Aluminiyamu oxide imagwiritsidwa ntchito chifukwa cha kuuma kwake ndi mphamvu zake. Utoto. Ma flakes a aluminiyamu oxide amagwiritsidwa ntchito mu utoto kuti azikongoletsa. Ulusi wophatikizika. Aluminiyamu oxide yagwiritsidwa ntchito muzinthu zingapo zoyesera komanso zamalonda za ulusi kuti zigwiritsidwe ntchito kwambiri (monga, Fiber FP, Nextel 610, Nextel 720). Zida zodzitetezera. Zida zina zodzitetezera thupi zimagwiritsa ntchito mbale za alumina ceramic, nthawi zambiri zimaphatikizidwa ndi aramid kapena UHMWPE backup kuti zigwire bwino ntchito motsutsana ndi ziwopsezo zambiri za mfuti. Chitetezo cha abrasion. Aluminium oxide imatha kukulitsidwa ngati chophimba pa aluminiyamu pogwiritsa ntchito anodizing kapena plasma electrolytic oxidation. Kuteteza magetsi. Aluminium oxide ndi chotetezera magetsi chomwe chimagwiritsidwa ntchito ngati substrate (silicon on safiro) ya ma circuits ophatikizidwa komanso ngati chotchinga cha tunnel popanga zida zowongolera monga single electron transistors ndi superconducting quantum interference devices (SQUIDs).
Okisidi ya Aluminiyamu, popeza ndi dielectric yokhala ndi band gap yayikulu, imagwiritsidwa ntchito ngati chotchingira kutentha mu ma capacitor. Pakuunikira, aluminium oxide yowala imagwiritsidwa ntchito mu nyali zina za sodium vapor. Aluminium oxide imagwiritsidwanso ntchito pokonzekera zophimba zomangira mu nyali zazing'ono za fluorescent. Mu ma laboratories a chemistry, aluminium oxide ndi njira yogwiritsira ntchito chromatography, yomwe imapezeka mu basic (pH 9.5), acidic (pH 4.5 ikakhala m'madzi) ndi neutral formulations. Ntchito zaumoyo ndi zamankhwala zimaphatikizapo ngati chinthu chogwiritsidwa ntchito m'malo mwa chiuno ndi mapiritsi oletsa kubereka. Imagwiritsidwa ntchito ngati scintillator ndi dosimeter yotetezera ma radiation ndi ntchito zochiritsira chifukwa cha mphamvu zake zowunikira zomwe zimalimbikitsidwa ndi kuwala. Kuteteza ma uvuni otentha kwambiri nthawi zambiri kumapangidwa kuchokera ku aluminium oxide. Zidutswa zazing'ono za aluminium oxide nthawi zambiri zimagwiritsidwa ntchito ngati ma chips owira mu chemistry. Imagwiritsidwanso ntchito popanga zoteteza spark plug. Pogwiritsa ntchito njira yopopera ya plasma ndikusakaniza ndi titania, imakutidwa pamwamba pa mabuleki a njinga zina kuti ipereke kupsinjika ndi kukana kuwonongeka. Maso ambiri a ceramic pa ndodo zosodza ndi mphete zozungulira zopangidwa ndi aluminium oxide. Mu mtundu wake wabwino kwambiri wa ufa (woyera), wotchedwa Diamantine, aluminiyamu oxide imagwiritsidwa ntchito ngati chopukutira bwino kwambiri popanga mawotchi ndi mawotchi. Aluminium oxide imagwiritsidwanso ntchito popanga ma stanchions mumakampani opanga njinga zamoto ndi zamapiri. Chophimbachi chimaphatikizidwa ndi molybdenum disulfate kuti chipereke mafuta okwanira pamwamba kwa nthawi yayitali.