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 Fa'amea | ||
| 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 faʻaaogaina i nai mea faʻataʻitaʻi ma faʻatau pisinisi mo talosaga maualuga-faʻatinoga (faʻataʻitaʻiga, 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 lava 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. O le alumini oxide o se insulator eletise e 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 fale su'esu'e kemisi, o le alumini oxide ose ala mo le chromatography, e maua i le faavae (pH 9.5), acidic (pH 4.5 pe a i totonu o le vai) ma mea e le tutusa. 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 scintillator ma le dosimeter mo le puipuiga o le fa'avevela ma le fa'aogaina o togafitiga mo ana mea e fa'aosofia ai le malamalama. Insulation mo ogaumu vevela maualuga e masani ona gaosia mai le alumini oxide. E masani ona fa'aaogaina ni fasi meata'i fa'avela i le kemisi. E fa'aaogaina fo'i e fai ai ni insulators polo. O le fa'aogaina o le fa'asu'iina 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 fa'asao. 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 va'ai ma le faiga o 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.
