I-Aluminiyam oxide yealpha-isigaba 99.999% (isiseko sesinyithi)
| AluminiyamOxide | |
| Inombolo yeCAS | 1344-28-1 |
| Ifomula yemichiza | Al2O3 |
| Ubunzima beMolar | 101.960 g · mol -1 |
| Imbonakalo | emhlophe eqinileyo |
| Ivumba | engenavumba |
| Ukuxinana | 3.987g/cm3 |
| Indawo yokunyibilika | 2,072°C(3,762°F;2,345K) |
| Indawo yokubilisa | 2,977°C(5,391°F;3,250K) |
| Ukunyibilika emanzini | enganyibilikiyo |
| Ukunyibilika | ayinyibilikiyo kuzo zonke izinyibilikisi |
| logP | 0.3186 |
| Ukuchaphazeleka kwemagneti(χ) | -37.0×10−6cm3/mol |
| I-Thermal conductivity | 30W · m−1 · K−1 |
Inkcazo yeShishini yeI-Aluminiyam oxide
| Uphawu | IkristaleUhlobo lweSakhiwo | Al2O3≥(%) | IMat yangaphandle.≤(%) | Ubungakanani beNcam | ||
| 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 |
Ukupakisha: ipakishwe kwibhakethi kwaye itywinwe ngaphakathi nge-ethene yokubambisana, ubunzima bobunzima bungama-20 kilogram ngebhakethi.
Isetyenziselwa ntoni iAluminiyam oxide?
IAlumina (Al2O3)isebenza njengemathiriyeli ekrwada yoluhlu olubanzi lweemveliso ze-ceramic eziphambili kwaye njenge-arhente esebenzayo ekusetyenzweni kweekhemikhali, kubandakanywa ii-adsorbents, ii-catalysts, i-microelectronics, iikhemikhali, ishishini le-aerospace, kunye nenye indawo yobuchwepheshe obuphezulu.Iimpawu eziphezulu ze-alumina zinokunikezela ziyenze ilungele ukusetyenziswa kwizicelo ezininzi.Ezinye zezicelo eziqhelekileyo ngaphandle kwemveliso ye-aluminium zidweliswe ngezantsi.Izigcwalisi.Ukuba mhlophe ngokwekhemikhali inert kwaye imhlophe, ialuminiyam oxide yinto ethandwayo yokuzalisa iiplastiki.Iglasi.Iimveliso ezininzi zeglasi zine-aluminiyam oxide njengesithako.I-Catalysis I-Aluminiyam oxide idala iindlela ezahlukeneyo zokusabela eziluncedo kwimizi-mveliso.Ukucocwa kwegesi.I-aluminiyam oxide isetyenziswa ngokubanzi ukususa amanzi kwimijelo yegesi.Abrasive.I-aluminium oxide isetyenziselwa ubunzima kunye namandla ayo.Peyinta.Iiflake ze-aluminium oxide zisetyenziswa kwipeyinti yeziphumo ezibonisa ukuhombisa.Ifayibha edibeneyo.I-aluminium oxide isetyenziswe kwizinto ezimbalwa zokulinga kunye nezorhwebo zefiber kwizicelo eziphezulu zokusebenza (umzekelo, iFiber FP, i-Nextel 610, i-Nextel 720).Isikrweqe somzimba.Ezinye izikrweqe zomzimba zisebenzisa iipleyiti ze-alumina zeceramic, ziqhele ukudityaniswa ne-aramid okanye i-UHMWPE exhasayo ukuphumeza ukusebenza ngokuchasene nezoyikiso zompu.Ukukhuselwa kwe-abrasion.I-aluminiyam oxide inokukhuliswa njengokwaleka kwi-aluminiyam nge-anodizing okanye nge-plasma electrolytic oxidation.Ukugquma kombane.I-aluminiyam oxide yi-insulator yombane esetyenziswa njenge-substrate (i-silicon kwisafire) kwiisekethe ezidibeneyo kodwa kwakhona njengomqobo we-tunnel yokwenziwa kwezixhobo ze-superconducting ezifana ne-electron transistors enye kunye ne-superconducting quantum interference devices (SQUIDs).
I-Aluminiyam oxide, ukuba yi-dielectric ene-gap enkulu yebhendi, isetyenziswe njengesithintelo sokukhusela kwi-capacitors.Ekukhanyeni, i-aluminiyam oxide eguquguqukayo isetyenziswa kwezinye izibane zomphunga wesodium.I-aluminiyam oxide ikwasetyenziswa ekulungiseleleni ukumiswa kokugquma kwizibane ezixineneyo zefluorescent.Kwiilabhoratri zekhemistri, i-aluminium oxide iphakathi kwi-chromatography, ekhoyo kwisiseko (pH 9.5), i-acidic (pH 4.5 xa isemanzini) kunye ne-neutral formulations.Impilo kunye nezicelo zonyango zibandakanya njengezinto eziphathekayo kwiindawo zokutshintshwa kwe-hip kunye neepilisi zokulawula ukuzalwa.Isetyenziswa njenge-scintillator kunye ne-dosimeter yokhuseleko lwemitha kunye nezicelo zonyango kwiipropathi zayo ze-luminescence ezivuselelweyo.I-insulation ye-furnaces ephezulu yokushisa ivame ukuveliswa kwi-aluminium oxide.Amaqhekeza amancinci e-aluminium oxide ahlala esetyenziswa njengeetshiphusi ezibilayo kwikhemistri.Ikwasetyenziselwa ukwenza i-spark plug insulators.Isebenzisa inkqubo yokutshiza ngeplasma kwaye ixutywe ne-titania, igqunywa kumphezulu wokuqhawuka wezinye iirimu zebhayisekile ukubonelela ukukrazuka kunye nokungagugi.Uninzi lwamehlo e-ceramic kwiintonga zokuloba ziindandatho ezijikelezayo ezenziwe nge-aluminium oxide.Ngowona mfanekiso ucolekileyo ongumgubo (omhlophe), obizwa ngokuba yi-Diamantine, i-aluminiyam oxide isetyenziswa njenge-abrasive yokupholisha egqwesileyo ekwenzeni iwotshi kunye nokwenza iiwotshi.I-aluminiyam oxide isetyenziselwa ukugquma i-stanchions kumnqamlezo wemoto kunye neshishini lebhayisekile yeentaba.Olu tyaba ludityaniswe ne-molybdenum disulfate ukunika i-lubrication yexesha elide lomphezulu.
