CVD (Chemical Vapor Deposition) inzira inowanzoshandiswa pakugadzira silicon carbide coatings.CVD silicon carbide coatingsvane akawanda akasiyana maitiro ekuita. Ichi chinyorwa chichasuma nzira yekugadzirira yeCVD silicon carbide coating uye maitiro ayo ekuita.
1. Kugadzirira nzira yeCVD silicon carbide coating
Iyo CVD nzira inoshandura gaseous precursors kuita yakasimba silicon carbide coatings pasi pekushisa kwakanyanya. Zvinoenderana neakasiyana gaseous precursors, inogona kukamurwa kuita gasi chikamu CVD uye yemvura chikamu CVD.
1. Vapor phase CVD
Vapor phase CVD inoshandisa gaseous precursors, kazhinji organosilicon makomisheni, kuti iwane kukura kwesilicon carbide mafirimu. Anowanzo shandiswa organosilicon makomisheni anosanganisira methylsilane, dimethylsilane, monosilane, nezvimwewo, izvo zvinogadzira silicon carbide mafirimu pasimbi substrates nekutakura gaseous precursors mumakamuri ekupisa anopisa. Nzvimbo dzekushisa dzepamusoro mukamuri yekupindura dzinowanzo kugadzirwa nekudziisa induction kana resistive heat.
2. Liquid phase CVD
Liquid-phase CVD inoshandisa mvura inotangira, kazhinji inonzi organic solvent ine silicon uye silanol compound, iyo inopisa uye inoputika mukamuri yekupindura, uye ipapo firimu resilicon carbide rinoumbwa pa substrate kuburikidza nemakemikari reaction.
2. Maitiro ekuita zveCVD silicon carbide coating
1.Excellent high temperature performance
CVD silicon carbide coatingsinopa yakanakisa tembiricha kugadzikana uye oxidation kuramba. Inokwanisa kushanda munzvimbo dzekushisa kwepamusoro uye inogona kumira zvakanyanya mumamiriro ekupisa.
2.Good mechanical properties
CVD silicon carbide coatingane kuoma kwepamusoro uye kunaka kupfeka kusagadzikana. Inodzivirira simbi substrates kubva pakupfeka nekuora, ichiwedzera hupenyu hwebasa rezvinhu.
3. Yakanakisa kugadzikana kwemakemikari
CVD silicon carbide coatingsinopikisa zvakanyanya kumakemikari akajairika akadai seasidhi, alkali uye munyu. Inopikisa kurwisa kwemakemikari uye kuora kwe substrate.
4. Low friction coefficient
CVD silicon carbide coatingine yakaderera friction coefficient uye yakanaka self-lubricating properties. Inoderedza kukakavara uye kupfeka uye inovandudza kushanda kwekushandisa kwezvinhu.
5.Good thermal conductivity
CVD silicon carbide coating ine yakanaka yekupisa conductivity zvivakwa. Inogona kukurumidza kuitisa kupisa uye kuvandudza kupisa kwekupisa kwesimba resimbi base.
6.Excellent magetsi ekudzivirira zvinhu
CVD silicon carbide coating ine yakanaka magetsi ekudzivirira zvivakwa uye inogona kudzivirira kubuda kwazvino. Inoshandiswa zvakanyanya mukudzivirira kwekudzivirira kwemidziyo yemagetsi.
7. Inogadziriswa gobvu uye kuumbwa
Nekudzora mamiriro panguva yeCVD maitiro uye kusungirirwa kweiyo precursor, ukobvu uye kuumbwa kweiyo silicon carbide firimu inogona kugadziriswa. Izvi zvinopa akawanda sarudzo uye kuchinjika kune akasiyana maapplication.
Muchidimbu, CVD silicon carbide coating ine yakanakisa tembiricha yekuita, yakanakisa michina zvivakwa, yakanaka kugadzikana kwemakemikari, yakaderera friction coefficient, yakanaka yekupisa conductivity uye magetsi ekudzivirira zvinhu. Izvi zvivakwa zvinogadzira CVD silicon carbide coatings inoshandiswa zvakanyanya muminda yakawanda, kusanganisira zvemagetsi, optics, aerospace, indasitiri yemakemikari, nezvimwe.
Nguva yekutumira: Mar-20-2024