Mukunzwisisa kwedu, zirconia ceramics uye alumina ceramics ese ari machena, nepo silicon nitride ceramics itema.Wakamboona dema alumina (AL2O3) ceramics?
Black alumina ceramics inotariswa zvakanyanya nekuda kweiyo yakasarudzika zvivakwa, Semiconductor yakabatanidzwa dunhu rinowanzoda yakanaka kunzwisiswa kwechiedza, inogona kuderedza yakashata mhedzisiro yechiedza pamaseketi akabatanidzwa.Saka dema ndiyo yakanakisa sarudza.
Aluminium(AL2O3) kazhinji haina ruvara kana kuchena, asi mune mamwe mamiriro inogona kuita dema.Izvi zvinotevera maitiro akadzama ealuminium oxide achigadzira dema: Kusvibiswa kwepasi: Pane zvimwe zvinosvibisa pamusoro pealumina, senge organic zvinhu zvine kabhoni, haidhirojeni, okisijeni nezvimwe zvinhu, kana tsvina ine simbi inochinja.Izvi zvinosvibisa zvinogona kuita sezvinokonzera, zvichiita kuti alumina iite.Oxidation-reduction reaction: Pasi peimwe tembiricha uye mhepo, zvinosvibisa pamusoro pealumina zvinozosangana neoxidation-kuderedza maitiro neokisijeni.Aya maitiro anogona kukonzera shanduko muruvara rwealumina.Kuumbwa kwenzvimbo yekudzikisa: Pamusoro pealuminium, nekuda kwekuvapo kwekuita redox, nzvimbo yekudzikisa ichaumbwa.Iyi nharaunda yakaderedzwa ine akasiyana emakemikari zvimiro, kusanganisira shanduko mu stoichiometry uye kuumbwa kwemareti akaremara.Kuumbwa kwenzvimbo dzemavara: Munharaunda inoderedza, kune dzimwe nzvimbo dzakakanganisika dzeokisijeni dzinogona kutakura maerekitironi ekuwedzera.Aya maerekitironi ekuwedzera anoshandura bhendi chimiro chealumina, achichinja mabatiro aanoita uye anoratidza chiedza.Izvi zvinoita kuti ruvara rwealuminium ruchinje kuita dema.Kazhinji, kuumbwa kwealumina kutema kunonyanya kukonzerwa nekuita kwekuderedza oxidation kunotanga nezvinosvibisa pamusoro pealumina, iyo inoumba nzvimbo yakaderedzwa uye inotanga mamwe maerekitironi, izvo zvinozoita kuti alumina iite dema.Black alumina inogona kushandiswa sechinhu chemidziyo yakadai semafotodiode, mafotoconductors, mafotodetectors, uye mafototransistors.Yayo yakakura simba gap uye yakanaka optoelectronic zvivakwa zvinoita kuti iite basa rakakosha mumunda weoptoelectronics.
Nguva yekutumira: Aug-31-2023