Na nghọta anyị, ceramik zirconia na alumina ceramics na-acha ọcha, ebe seramiki silicon nitride bụ oji.Ị hụla ceramik ojii (AL2O3)?
Black alumina ceramics na-elebara anya nke ukwuu n'ihi ihe ha pụrụ iche, Semiconductor Integrated circuit chọrọ ezigbo mmetụta ọkụ, ọ nwere ike belata mmetụta ọjọọ nke ọkụ na sekit jikọtara ọnụ.Ya mere, nwa kacha mma ịhọrọ.
Aluminom (AL2O3) na-abụkarị enweghị agba ma ọ bụ ọcha siri ike, mana n'ọnọdụ ụfọdụ ọ nwere ike ịtụgharị oji.Ihe na-esonụ bụ usoro zuru ezu nke aluminom oxide na-akpụ ojii: Mmetọ dị n'elu: Enwere ụfọdụ ihe na-emetọ n'elu alumina, dị ka ihe ndị na-emepụta ihe nwere carbon, hydrogen, oxygen na ihe ndị ọzọ, ma ọ bụ adịghị ọcha nwere ọla ngbanwe.Ihe adịghị ọcha ndị a nwere ike ime ka ihe na-eme ka alumina meghachi omume.Mmeghachi omume mbelata oxidation: N'okpuru ụfọdụ okpomọkụ na ikuku, ihe ndị na-emetọ ihe n'elu alumina ga-enweta mmeghachi omume oxidation-mbelata na oxygen.Mmeghachi omume ndị a nwere ike ime mgbanwe na agba nke alumina.Nhazi mpaghara mbelata: N'elu alumina, n'ihi ịdị adị nke mmeghachi omume redox, a ga-emepụta mpaghara mbelata.Mpaghara a belatara nwere akụrụngwa kemịkalụ dị iche iche, gụnyere mgbanwe na stoichiometry na nhazi ntụpọ lattice.Ịmepụta ebe agba agba: Na mpaghara mbelata, enwere saịtị ikuku oxygen nwere ntụpọ nke nwere ike ịnabata elektrọn ọzọ.Eletrọn ndị a na-agbakwunye na-agbanwe nhazi nke alumina, na-agbanwe otú o si amịkọrọ ma na-egosipụta ìhè.Nke a na-eme ka agba nke alumina gbanwee na oji.N'ozuzu, usoro nhazi ojii nke alumina na-abụkarị n'ihi mmeghachi omume oxidation-mbelata nke ihe ndị na-emerụ emerụ na-ebute n'elu alumina, bụ nke na-emepụta ebe dị ntakịrị ma na-ewebata electrons ndị ọzọ, nke na-emecha mee ka alumina gbanwee oji.Enwere ike iji alumina ojii mee ihe maka ngwaọrụ dịka fotodiodes, fotoconductors, fotodetectors, na fototransistors.Oghere ike ya dị elu na ezigbo optoelectronic Njirimara na-enyere ya aka ịrụ ọrụ dị mkpa n'ọhịa nke optoelectronics.
Oge nzipu: Ọgọst-31-2023