Hauv peb txoj kev nkag siab, zirconia ceramics thiab alumina ceramics yog ob qho tib si dawb, thaum silicon nitride ceramics yog dub.Koj puas tau pom alumina dub (AL2O3) ceramics?
Dub alumina ceramics yog dav xim vim lawv cov khoom tshwj xeeb, Semiconductor integrated circuit normlly xav tau lub teeb pom kev zoo, nws tuaj yeem txo qhov tsis zoo ntawm lub teeb ntawm kev sib xyaw ua ke.Yog li cov dub yog qhov zoo tshaj plaws xaiv.
Aluminium (AL2O3) feem ntau yog xim tsis muaj xim lossis xim dawb, tab sis nyob rau hauv qee qhov xwm txheej nws tuaj yeem tig dub.Cov hauv qab no yog cov txheej txheem ntxaws ntxaws ntawm aluminium oxide ua cov xim dub: Cov pa phem hauv av: Muaj qee cov pa phem rau ntawm alumina, xws li cov organic teeb meem uas muaj cov pa roj carbon, hydrogen, oxygen thiab lwm yam khoom, los yog impurities uas muaj cov hlau hloov pauv.Cov impurities no tuaj yeem ua cov catalysts, ua rau alumina hnov mob.Oxidation-txo cov tshuaj tiv thaiv: Hauv qee qhov kub thiab txias, cov pa phem ntawm alumina yuav raug oxidation-txo cov tshuaj tiv thaiv nrog oxygen.Cov tshuaj tiv thaiv no tuaj yeem ua rau muaj kev hloov pauv ntawm cov xim ntawm alumina.Tsim kom muaj qhov txo qis: Nyob rau saum npoo ntawm alumina, vim muaj cov tshuaj tiv thaiv redox, ib qho kev txo qis yuav raug tsim.Qhov kev txo qis no muaj cov khoom siv tshuaj sib txawv, suav nrog kev hloov pauv hauv stoichiometry thiab tsim cov lattice defects.Tsim cov chaw xim: Hauv cheeb tsam txo qis, muaj qee qhov chaw tsis zoo ntawm cov pa oxygen uas tuaj yeem ua kom haum cov khoom siv hluav taws xob ntxiv.Cov hluav taws xob ntxiv no hloov pauv cov qauv ntawm alumina, hloov nws absorbs thiab qhia txog lub teeb.Qhov no ua rau cov xim ntawm alumina hloov mus rau dub.Feem ntau, cov txheej txheem dub ntawm alumina feem ntau yog tshwm sim los ntawm oxidation-txo cov tshuaj tiv thaiv pib los ntawm cov pa phem nyob rau saum npoo ntawm alumina, uas tsim ib cheeb tsam txo thiab qhia ntxiv electrons, uas thaum kawg ua rau alumina tig dub.Dub alumina tuaj yeem siv los ua cov khoom siv rau cov khoom siv xws li photodiodes, photoconductors, photodetectors, thiab phototransistors.Nws qhov sib txawv ntawm lub zog siab thiab cov khoom zoo optoelectronic ua rau nws ua lub luag haujlwm tseem ceeb hauv thaj chaw ntawm optoelectronics.
Post lub sij hawm: Aug-31-2023