Parizvino, nzira dzekugadzirira dzeSiC coatingkunyanya zvinosanganisira gel-sol nzira, embedding nzira, brush coating nzira, plasma spraying nzira, kemikari vapor reaction method (CVR) uye kemikari vapor deposition nzira (CVD).
Embedding nzira
Iyi nzira imhando yepamusoro-tembiricha yakasimba-chikamu sintering, iyo inonyanya kushandisa Si poda uye C hupfu sehupfu hwekuisa, inoisa iyographite matrixmu embedding poda, uye siners pakupisa kwakanyanya muinert gasi, uye pakupedzisira anowanaSiC coatingpamusoro pe graphite matrix. Iyi nzira iri nyore mukuita, uye kupfekedza uye matrix zvakasungirirwa zvakanaka, asi kuenzana kwekuputira pamwe negwara reukobvu hakuna kunaka, uye zviri nyore kuburitsa maburi akawanda, zvichikonzera kusagadzikana kweoxidation.
Brush coating nzira
Iyo bhurashi yekuputira nzira inonyanya kubhurasha iyo yemvura mbishi zvinhu pamusoro peiyo graphite matrix, uye yobva yaomesa iyo mbishi pane imwe tembiricha kugadzirira iyo coating. Iyi nzira iri nyore mukuita uye yakaderera mumutengo, asi iyo yekupfekedza yakagadzirwa nebhurashi yekuputira nzira ine isina kusimba chisungo nematrix, isina kunaka yekupfekedza kufanana, kuonda kutetepa uye kushoma oxidation kuramba, uye inoda dzimwe nzira dzekubatsira.
Plasma spraying nzira
Plasma spraying nzira inonyanya kushandisa pfuti yeplasma kupfapfaidza zvakanyungudutswa kana semi-yakanyungudutswa mbishi pamusoro peiyo graphite substrate, uyezve inoomesa uye zvisungo kuita coating. Iyi nzira iri nyore kushandisa uye inogona kugadzirira ine densesilicon carbide coating, asisilicon carbide coatingyakagadzirirwa neiyi nzira kazhinji haina kusimba kuti ive yakasimba oxidation kuramba, saka inowanzo shandiswa kugadzirira SiC composite coatings kuvandudza kunaka kwekuputira.
Gel-sol nzira
Iyo gel-sol nzira inonyanya kugadzirira yunifomu uye yakajeka sol mhinduro yekuvhara pamusoro peiyo substrate, inoomesa kuita gel, uye wozoipisa kuti uwane yekuputira. Iyi nzira iri nyore kushanda uye ine mari shoma, asi iyo yakagadzirwa yakagadziriswa ine zvipingamupinyi zvakadai sekuderera kwekushisa kwekushisa kwekudzivirira uye kuputika nyore, uye haigoni kushandiswa zvakanyanya.
Chemical vapor reaction method (CVR)
CVR inonyanya kuburitsa SiO mhute nekushandisa Si uye SiO2 hupfu pakupisa kwepamusoro, uye nhevedzano yemakemikari anoitika pamusoro peiyo C material substrate kugadzira SiC coating. Iyo SiC coating yakagadzirirwa neiyi nzira yakanyatso sungirirwa kune substrate, asi reaction tembiricha yakakwira uye mutengo wakakwira zvakare.
Nguva yekutumira: Jun-24-2024