Parizvino, nzira dzekugadzirira dzeSiC coatingkunyanya zvinosanganisira gel-sol nzira, embedding nzira, brush coating nzira, plasma spraying nzira, kemikari gasi reaction nzira (CVR) uye kemikari vapor deposition nzira (CVD).
Embedding nzira:
Iyo nzira imhando yemhando yepamusoro tembiricha yakasimba chikamu sintering, iyo inonyanya kushandisa musanganiswa weSi poda uye C hupfu sehupfu hwekuisa, iyo graphite matrix inoiswa muhupfu hwekuisa, uye tembiricha yekupisa inoitwa muinert gasi. , uye pakupedzisira theSiC coatinginowanikwa pamusoro pe graphite matrix.Iyo nzira iri nyore uye musanganiswa pakati pekuputira uye substrate yakanaka, asi kufanana kwejasi pamwe negwara reukobvu hakuna kunaka, izvo zviri nyore kuburitsa maburi uye zvinotungamira mukusagadzikana oxidation kuramba.
Brush coating nzira:
Iyo bhurashi yekubikira nzira inonyanya kukwesha mvura yakasvibirira pamusoro peiyo graphite matrix, uye wobva warapa iyo mbishi pane imwe tembiricha kugadzirira iyo coating.Maitiro acho ari nyore uye mutengo wakaderera, asi iyo yekupfekedza inogadzirwa nebhurashi yekubikira nzira haina kusimba pamwe neiyo substrate, iyo yekupfeka yakafanana haina kunaka, iyo yekupfeka itete uye oxidation kuramba yakadzikira, uye dzimwe nzira dzinodiwa kubatsira. it.
Plasma spraying nzira:
Iyo plasma yekupfapfaidza nzira inonyanya kupfapfaidza yakanyunguduka kana semi-yakanyunguduka mbishi pamusoro peiyo graphite matrix nepfuti yeplasma, uye wobva waomesa uye sunga kuti uite coating.Iyo nzira iri nyore kushanda uye inogona kugadzirira yakaomesesa silicon carbide coating, asi iyo silicon carbide coating yakagadzirwa neiyo nzira kazhinji haina kusimba uye inotungamira kune isina kusimba oxidation kuramba, saka inowanzo shandiswa kugadzirira kweSiC composite coating kuvandudza. kunaka kwekuputira.
Gel-sol nzira:
Iyo gel-sol nzira inonyanya kugadzirira yunifomu uye yakajeka sol mhinduro inovhara pamusoro pematrix, ichiomesa kuita gel uyezve sinter kuti iwane yekuputira.Iyi nzira iri nyore kushandisa uye yakaderera mumutengo, asi iyo yekupfeka inogadzirwa ine zvimwe zvikanganiso senge yakaderera thermal shock resistance uye nyore kuputika, saka haigone kushandiswa zvakanyanya.
Chemical Gas Reaction (CVR) :
CVR inonyanya kugadziraSiC coatingkuburikidza nekushandisa Si uye SiO2 poda kugadzira SiO chiutsi pakupisa kwakanyanya, uye nhevedzano yemakemikari maitiro anoitika pamusoro peC material substrate.TheSiC coatingyakagadzirirwa nenzira iyi yakanyatsobatanidzwa kune substrate, asi maitiro ekushisa akakwirira uye mutengo wakakwirira.
Chemical Vapor Deposition (CVD):
Parizvino, CVD ndiyo tekinoroji huru yekugadziriraSiC coatingpamusoro pe substrate pamusoro.Iyo huru maitiro ndeyekutevedzana kwemuviri uye kemikari maitiro egasi chikamu chinogadzirisa zvinhu pane substrate pamusoro, uye pakupedzisira iyo SiC coating inogadzirirwa nekuisa pane substrate pamusoro.Iyo SiC coating yakagadzirirwa neCVD tekinoroji yakanyatso sunganidzwa kumusoro kweiyo substrate, iyo inogona zvinobudirira kuvandudza oxidation kuramba uye ablative kuramba kweiyo substrate zvinhu, asi nguva yekuisa nzira iyi yakareba, uye gasi rekuita rine imwe chepfu. gasi.
Nguva yekutumira: Nov-06-2023