Kodi Black Alumina Ceramic ndi chiyani

Pakumvetsetsa kwathu, zirconia ceramics ndi alumina ceramics zonse ndi zoyera, pomwe silicon nitride ceramics ndi zakuda.Kodi mwawona zoumba za aluminiyamu wakuda (AL2O3)?

Zoumba zakuda za aluminiyamu zimayamikiridwa kwambiri chifukwa cha mawonekedwe awo apadera, Semiconductor Integrated circuit kawirikawiri imafuna kumva bwino kwa kuwala, imatha kuchepetsa zotsatira zoyipa za kuwala pamabwalo ophatikizika.Choncho wakuda ndi bwino kusankha.

Aluminium(AL2O3) nthawi zambiri imakhala yopanda mtundu kapena yoyera, koma nthawi zina imatha kukhala yakuda.Zotsatirazi ndi mwatsatanetsatane ndondomeko ya aluminiyamu oxide kupanga wakuda: Kuipitsa pamwamba: Pali zowononga zina pamwamba pa aluminiyamu, monga zinthu zamoyo zomwe zili ndi carbon, haidrojeni, mpweya ndi zinthu zina, kapena zonyansa zomwe zimakhala ndi zitsulo zosinthika.Zonyansazi zimatha kukhala ngati zoyambitsa, zomwe zimapangitsa kuti aluminiyamu achitepo kanthu.Kuchepetsa kuchepa kwa okosijeni: Pa kutentha kwina ndi mlengalenga, zowononga pamwamba pa aluminiyamu zimakumana ndi kuchepetsedwa kwa okosijeni ndi okosijeni.Zochita izi zingayambitse kusintha kwa mtundu wa aluminiyamu.Kupanga malo ochepetsera: Pamwamba pa alumina, chifukwa cha kukhalapo kwa redox reaction, malo ochepetsera adzapangidwa.Dera lochepetsedwali lili ndi mankhwala osiyanasiyana, kuphatikizapo kusintha kwa stoichiometry ndi kupanga zolakwika za lattice.Kupanga malo amtundu: M'dera lochepetsera, pali malo ena opanda mpweya omwe amatha kukhala ndi ma elekitironi owonjezera.Ma elekitironi owonjezerawa amasintha gulu la aluminiyamu, kusintha momwe amatengera ndi kuwunikira kuwala.Izi zimapangitsa kuti mtundu wa aluminiyamu usinthe kukhala wakuda.Kawirikawiri, kupanga kwakuda kwa alumina kumachitika makamaka chifukwa cha kuchepa kwa okosijeni komwe kumayambitsidwa ndi zowononga pamwamba pa aluminiyamu, zomwe zimapanga malo ochepetsedwa ndikuyambitsa ma elekitironi owonjezera, omwe pamapeto pake amachititsa kuti aluminiyamu ikhale yakuda.Alumina wakuda amatha kugwiritsidwa ntchito ngati zida zapazida monga ma photodiode, ma photoconductors, ma photodetectors, ndi ma phototransistors.Kusiyana kwake kwamphamvu kwambiri komanso zinthu zabwino za optoelectronic zimamuthandiza kuti azigwira ntchito yofunika kwambiri pamagetsi amagetsi.