Aluminium oxide alpha-phase 99.999% (hlau hauv paus)
| Aluminium Oxide | |
| CAS Nr | 1344-28-1 : kuv |
| Tshuaj formula | Al2O3 |
| Molar loj | 101.960 g · mol −1 |
| Qhov tshwm sim | dawb khoom |
| tsw | tsw tsw |
| Qhov ntom | 3,987g 3 |
| Melting point | 2,072 ° C (3,762 ° F; 2,345K) |
| Boiling point | 2,977 ° C (5,391 ° F; 3,250K) |
| Solubility hauv dej | insoluble |
| Solubility | insoluble nyob rau hauv tag nrho cov kuab tshuaj |
| logP | 0.3186 ib |
| Sib nqus susceptibility (χ) | 37.0 × 10-6cm3 / mol |
| Thermal conductivity | 30W·m-1·K-1 |
Enterprise Specification rauAluminium Oxide
| Cim | CrystalHom qauv | Al2O3≥ (%) | Txawv teb chaws Mat.≤(%) | Particle Loj | ||
| Si | Fe | Mg | ||||
| UAS 3N | a | 99.9 ua | - | - | - | 1 ~ 5 m |
| UAS 4N | a | 99.99 ib | 0.003 ib | 0.003 ib | 0.003 ib | 100 ~ 150nm |
| UAS 5N | a | 99.999 ib | 0.0002 | 0.0002 | 0.0001 | 0.2 ~ 10 hli |
| UAS 6N | a | 99.99 9 | - | - | - | 1 ~ 10 hli |
Packing: ntim rau hauv lub thoob thiab ntim rau hauv los ntawm cohesion ethene, net hnyav yog 20 kg ib thoob.
Dab tsi yog Aluminium Oxide siv rau?
Alumina (Al2O3)ua cov khoom siv raw rau ntau yam ntawm cov khoom siv ceramic thiab ua tus neeg sawv cev hauv kev ua tshuaj, suav nrog adsorbents, catalysts, microelectronics, chemicals, aerospace kev lag luam, thiab lwm yam high-tech cheeb tsam. Cov yam ntxwv zoo tshaj alumina tuaj yeem muab ua rau nws zoo tagnrho rau siv hauv ntau daim ntawv thov. Qee qhov kev siv ntau tshaj plaws sab nraud ntawm aluminium ntau lawm yog teev hauv qab no. Fillers. Ua cov tshuaj lom neeg tsis zoo thiab dawb, aluminium oxide yog ib qho kev nyiam rau cov yas. Iav.Muaj formulations ntawm iav muaj txhuas oxide raws li ib tug muaj. Catalysis Aluminium oxide catalyses ntau yam tshuaj tiv thaiv uas muaj txiaj ntsig zoo rau kev lag luam. Gas purification. Aluminium oxide yog dav siv los tshem tawm cov dej los ntawm cov dej ntws. Abrasive. Aluminium oxide yog siv rau nws hardness thiab lub zog. Xim. Aluminium oxide flakes yog siv rau hauv cov xim rau cov teebmeem zoo nkauj. Composite fiber ntau. Aluminium oxide tau siv rau hauv ob peb qhov kev sim thiab kev lag luam fiber ntau rau kev ua haujlwm siab (xws li Fiber FP, Nextel 610, Nextel 720). Lub cev armor.Qee lub cev armors siv alumina ceramic daim hlau, feem ntau ua ke nrog aramid lossis UHMWPE rov qab los ua kom tau txais txiaj ntsig tiv thaiv feem ntau phom sij. Kev tiv thaiv kev puas tsuaj. Aluminium oxide tuaj yeem loj hlob raws li txheej txheej ntawm txhuas los ntawm anodizing lossis los ntawm plasma electrolytic oxidation. Hluav taws xob rwb thaiv tsev. Aluminium oxide yog ib qho hluav taws xob rwb thaiv tsev siv los ua lub substrate (silicon ntawm sapphire) rau kev sib xyaw ua ke tab sis kuj yog qhov thaiv qhov thaiv rau kev tsim cov khoom siv hluav taws xob xws li ib qho hluav taws xob transistors thiab superconducting quantum cuam tshuam cov cuab yeej (SQUIDs).
Aluminium Oxide, ua ib lub dielectric nrog qhov sib txawv loj band, yog siv los ua ib qho kev thaiv thaiv hauv cov capacitors. Hauv kev teeb pom kev zoo, translucent aluminium oxide yog siv rau hauv qee lub teeb sodium vapor. Aluminium oxide kuj tseem siv rau hauv kev npaj cov txheej txheem tshem tawm hauv cov teeb fluorescent. Hauv cov chaw soj ntsuam chemistry, aluminium oxide yog nruab nrab rau chromatography, muaj nyob rau hauv theem pib (pH 9.5), acidic (pH 4.5 thaum nyob hauv dej) thiab cov qauv nruab nrab. Cov ntawv thov kev noj qab haus huv thiab kev kho mob suav nrog nws ua cov khoom siv hauv kev hloov lub duav thiab cov tshuaj tiv thaiv kev yug menyuam. Nws yog siv los ua scintillator thiab dosimeter rau kev tiv thaiv hluav taws xob thiab kev siv tshuaj kho mob rau nws cov khoom siv kho qhov muag luminescence. Rwb thaiv tsev rau cov cua kub kub feem ntau yog tsim los ntawm txhuas oxide. Cov khoom me me ntawm txhuas oxide feem ntau yog siv los ua cov chips hauv chemistry. Nws kuj tseem siv los ua cov hluav taws xob hluav taws xob insulators. Siv cov txheej txheem plasma tshuaj tsuag thiab sib xyaw nrog titania, nws yog coated mus rau lub braking nto ntawm qee lub tsheb kauj vab rims los muab kev puas tsuaj thiab hnav tsis kam. Feem ntau lub qhov muag ceramic ntawm cov pas nuv ntses yog cov nplhaib uas ua los ntawm txhuas oxide. Nyob rau hauv nws cov hmoov zoo tshaj plaws (dawb) daim ntawv, hu ua Diamantine, aluminium oxide yog siv los ua polishing abrasive zoo tshaj hauv watchmaking thiab clockmaking. Aluminium oxide kuj tseem siv rau hauv txheej txheej ntawm stanchions hauv kev lag luam tsheb kauj vab thiab roob tsheb kauj vab. Cov txheej no yog ua ke nrog molybdenum disulfate los muab lub sijhawm ntev lubrication ntawm qhov chaw.
