Aluminium oxide alpha-phase 99.999% (metala faavae)
| AluminumOxide | |
| Numera CAS | 1344-28-1 |
| Fua fa'ameamea | Al2O3 |
| Molar mass | 101.960 g · mol −1 |
| Fa'aaliga | pa'epa'e malo |
| Sogisogi | leai se manogi |
| Malosi | 3.987g/cm3 |
| Liu liusuavai | 2,072°C(3,762°F;2,345K) |
| Fa'apuna | 2,977°C(5,391°F;3,250K) |
| Solubility i le vai | e le mafai ona fa'afefeteina |
| Solubility | e le mafai ona solu i so'o se vaifofo |
| logP | 0.3186 |
| Fa'agata fa'amaneta(χ) | −37.0×10−6cm3/mol |
| Fa'avevela vevela | 30W·m−1·K−1 |
Atina'e Fa'amatalaga moAluminium Oxide
| Faailoga | tioataItuaiga Fauga | Al2O3≥(%) | Fala i fafo.≤(%) | Lapo'a La'au | ||
| 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 |
afifiina: teuina i totonu o pakete ma faʻamaufaʻailoga i totonu e le cohesion ethene, mamafa mamafa e 20 kilokalama i le pakete.
O le a le mea e fa'aoga ai le Aluminium Oxide?
Alumina (Al2O3)'au'auna e fai ma mea mata mo le tele o oloa sima maualuga ma o se sui malosi i le gaosiga o vailaʻau, e aofia ai adsorbents, catalysts, microelectronics, vailaʻau, alamanuia aerospace, ma isi vaega maualuga-tekonolosi.Ole uiga maualuga ole alumina e mafai ona ofoina atu e faʻaoga lelei mo le faʻaaogaina i le tele o talosaga.O nisi o talosaga sili ona taatele i fafo atu o le gaosiga alumini o loʻo lisiina i lalo.Fa'atumu.O le fa'agata fa'ama'i ma le pa'epa'e, o le alumini oxide o se fa'atumu fa'apitoa mo palasitika.Glass.O le tele o faʻasologa o tioata o loʻo i ai le alumini oxide e fai ma mea faʻaoga.Catalysis Aluminum oxide e fa'apipi'i ai le tele o fa'agaioiga e aoga i fale gaosimea.Fa'amama kasa.O le alumini oxide e masani ona faʻaaogaina e aveese ai le vai mai le kesi.Abrasive.Alumini oxide e faʻaaogaina mo lona maaa ma le malosi.vali.Aluminum oxide flakes e faʻaaogaina i vali mo faʻaaliga teuteu.Alava tu'ufa'atasi.Alumini oxide ua fa'aaogaina i ni nai mea fa'ata'ita'i ma fa'atau pisinisi mo fa'aoga maualuga (fa'ata'ita'iga, Fiber FP, Nextel 610, Nextel 720).Fa'aofuofu tino.O nisi o ofutau o le tino e fa'aogaina ai le alumina ceramic plates, e masani ona tu'ufa'atasia ma le aramid po'o le UHMWPE lagolago e ausia ai le aoga i le tele o fa'amata'u fana.Puipuiga abrasion.Alumini oxide e mafai ona tupu e pei o se ufiufi i luga o le alumini e ala i le anodizing poʻo le plasma electrolytic oxidation.Insulation eletise.Alumini oxide o se insulator eletise faʻaaogaina e fai ma substrate (silikoni i luga o le safaira) mo fesoʻotaʻiga tuʻufaʻatasia ae faʻapea foʻi ma se pa puipui mo le fausiaina o masini superconducting e pei ole transistors eletise tasi ma superconducting quantum interference device (SQUIDs).
Aluminium Oxide, i le avea o se dielectric ma e fai si tele le va o fusi, e faʻaaogaina e fai ma pa puipui insulating i capacitors.I moli, e faʻaaogaina le alumini oxide e faʻaaogaina i nisi moli vaʻa sodium.O lo'o fa'aogaina fo'i le alumini oxide i le tapenaina o fa'alavalava fa'alava i moli fa'ama'i.I totonu o falesu'esu'e kemisi, o le alumini oxide ose auala mo le chromatography, e maua i le faavae (pH 9.5), acidic (pH 4.5 pe a i totonu o le vai) ma le fa'avae fa'aletonu.O talosaga fa'alesoifua maloloina ma fa'afoma'i e aofia ai e fai ma mea e sui ai suilapalapa ma fuala'au fa'anatinati.O lo'o fa'aaogaina e fai ma fa'aola ma fa'ameamea mo le puipuiga o le fa'avevela ma togafitiga fa'apitoa mo ana mea e fa'aosofia ai le malamalama.O le faʻamalama mo ogaumu vevela maualuga e masani ona gaosia mai le alumini oxide.E masani ona fa'aogaina ni fasi meata'i fa'alaiti ole alumini e fai ma meata'i fa'apuna ile kemisi.E fa'aaogaina fo'i e fai ai ni insulators polo.I le fa'aaogaina o le fa'auluina o le plasma ma fa'afefiloi ma le titania, o lo'o fa'apipi'iina i luga o le mea e taofi ai nisi o uili uila e maua ai le abrasion ma le ofuina.O le tele o mata sima i luga o fagota o mama lapotopoto e faia mai le alumini oxide.I lona pito sili ona lelei o le pauta (pa'epa'e), e ta'ua o le Diamantine, alumini oxide o lo'o fa'aaogaina e fai ma mea fa'alelei sili atu i le gaosiga o le uati ma le uati.O loʻo faʻaaogaina foʻi le alumini oxide i le faʻapipiʻiina o faʻamau i totonu o le afi afi ma le uila afi.O lenei faʻapipiʻi ua tuʻufaʻatasia ma le molybdenum disulfate e tuʻuina atu ai le lubrication umi o luga.
