
| AluminomOxide | |
| Nọmba CAS | 1344-28-1 |
| Usoro kemịkalụ | Al2O3 |
| Oke mola | 101.960 g · mol −1 |
| Ọdịdị | ihe siri ike ọcha |
| Isi ísì | enweghị isi |
| Njupụta | 3.987g/cm3 |
| Ebe agbaze | 2,072°C(3,762°F;2,345K) |
| Ebe isi mmiri | 2,977°C(5,391°F;3,250K) |
| Mmiri na-agbaze | anaghị agbaze agbaze |
| Mmiri na-agbaze | anaghị agbaze na ihe mgbaze niile |
| ndekọ | 0.3186 |
| Mmetụta magnetik (χ) | −37.0 × 10−6cm3/mol |
| Ọkwa okpomọkụ | 30W·m−1·K−1 |
Nkọwapụta Ụlọ Ọrụ makaAluminom oxide
| Akara ngosi | KristalỤdị Nhazi | Al2O3≥(%) | Mba Ọzọ Mat.≤(%) | Nha nke ihe ndị dị ndụ | ||
| 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 |
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Gịnị ka a na-eji Aluminom Oxide eme?
Alumina (Al2O3)Ọ na-arụ ọrụ dị ka ihe eji emepụta ọtụtụ ngwaahịa seramiiki dị elu yana dịka ihe na-arụ ọrụ na nhazi kemịkalụ, gụnyere ihe na-eme ka ihe na-akpali akpali, ihe na-akpali akpali, microelectronics, kemịkalụ, ụlọ ọrụ ụgbọelu, na mpaghara teknụzụ ndị ọzọ dị elu. Njirimara dị elu nke alumina nwere ike inye na-eme ka ọ dị mma maka ojiji n'ọtụtụ ngwa. Ụfọdụ n'ime ngwa ndị a na-ejikarị eme ihe n'èzí mmepụta aluminom ka edepụtara n'okpuru. Ihe na-ejupụta. Ebe ọ bụ na kemịkalụ anaghị arụ ọrụ nke ọma ma na-acha ọcha, aluminom oxide bụ ihe na-eme ka plastik dị mma. Iko. Ọtụtụ usoro nke iko nwere aluminom oxide dị ka ihe mejupụtara ya. Catalysis Aluminom oxide na-akpali ọtụtụ mmeghachi omume bara uru n'ụlọ ọrụ mmepụta ihe. Nhicha gas. A na-eji aluminom oxide eme ihe nke ukwuu iji wepụ mmiri na iyi gas. Na-afụ ụfụ. A na-eji aluminom oxide eme ihe maka ike na ike ya. Agba. A na-eji flakes aluminom oxide eme ihe na agba maka mmetụta ịchọ mma na-egosipụta. Eriri mejupụtara. A na-eji aluminom oxide eme ihe na ole na ole ihe eji eme ihe na eriri azụmaahịa maka ngwa arụmọrụ dị elu (dịka ọmụmaatụ, Fiber FP, Nextel 610, Nextel 720). Ihe agha ahụ. Ụfọdụ ihe agha ahụ na-eji efere seramiiki alumina, nke na-ejikọkarị ya na nkwado aramid ma ọ bụ UHMWPE iji nweta irè megide ọtụtụ ihe iyi egwu egbe. Nchedo abrasion. Enwere ike ịkụnye aluminom oxide dị ka mkpuchi na aluminom site na anodizing ma ọ bụ site na plasma electrolytic oxidation. Ihe mkpuchi eletriki. Aluminom oxide bụ ihe mkpuchi eletriki eji dị ka ihe ndabere (silicon na sapphire) maka sekit agbakwunyere kamakwa dị ka ihe mgbochi ọwara maka imepụta ngwaọrụ superconducting dị ka otu transistor electron na ngwaọrụ superconducting quantum interference (SQUIDs).
Aluminom oxide, nke bụ dielectric nwere nnukwu oghere eriri, a na-eji ya dị ka ihe mgbochi mkpuchi na capacitors. N'ọkụ, a na-eji aluminum oxide translucent na ụfọdụ oriọna sodium vapor. A na-ejikwa aluminum oxide eme ihe n'ịkwadebe ihe mkpuchi mkpuchi na obere oriọna fluorescent. N'ụlọ nyocha kemistri, aluminum oxide bụ ihe eji eme chromatography, dị na basic (pH 9.5), acidic (pH 4.5 mgbe ọ dị na mmiri) na usoro na-anọpụ iche. Ngwa ahụike na ahụike gụnyere ya dị ka ihe eji dochie úkwù na ọgwụ mgbochi ịmụ nwa. A na-eji ya dị ka ihe na-eme ka ihe na-egbuke egbuke na dosimeta maka nchebe radieshon na ọgwụgwọ maka ihe ndị na-eme ka ọ dị mma. A na-ejikarị aluminum oxide emepụta mkpuchi maka ọkụ ọkụ dị elu. A na-ejikarị obere iberibe aluminum oxide eme ihe dị ka ibe esi mmiri na kemistri. A na-ejikwa ya eme ihe mkpuchi plọg plọg. Site na iji usoro ịgba plasma ma gwakọta ya na titania, a na-ete ya n'elu brek nke ụfọdụ rim ígwè iji nye abrasion na iguzogide iyi. Ọtụtụ anya seramiiki na mkpanaka ịkụ azụ bụ mgbaaka okirikiri emere site na aluminum oxide. N'ụdị ntụ ntụ ya kacha mma (ọcha), nke a na-akpọ Diamantine, a na-eji aluminum oxide eme ihe dị ka ihe na-eme ka ọ dị mma n'ịme elekere na ime elekere. A na-ejikwa aluminum oxide eme ihe n'ikpuchi stanchions na ụlọ ọrụ igwe kwụ otu ebe na motocross. A na-ejikọta mkpuchi a na molybdenum disulfate iji nye mmanụ ogologo oge n'elu ya.