Chemical Vapor Deposition (CVD) txheej thev naus laus zis yog ib txoj hauv kev los txhim kho cov khoom ntawm titanium alloys. Los ntawm kev hloov cov tshuaj lom neeg hauv cov pa roj rau hauv cov khoom siv ntawm qhov kub thiab txias, CVD cov ntaub ntawv coatings ntawm titanium alloy nto. Cov txheej txheem no muaj cov txiaj ntsig tseem ceeb suav nrog kev txhim kho hnav tsis kam, tiv thaiv corrosion, thiab thermal qaug zog tiv thaiv, tseem ceeb heev rau cov ntawv thov raug kub siab thiab kev ntxhov siab.
Nyob rau hauv lub realm ntawm tej cuab yeej, CVD-coated hard alloy cov cuab yeej qhia txo qis tus nqi thiab ncua lifespans thaum milling titanium alloys ntawm high speeds. Qhov no tsis tsuas yog txhim kho cov cuab yeej siv tau ntev, tab sis kuj txo cov nqi tsim khoom thiab kev saib xyuas zaus. Ntxiv mus, CVD technology pom daim ntawv thov nyob rau hauv biomedical teb, qhov twg coatings deposits ntawm titanium alloy nto txhim khu biocompatibility, hnav tsis kam, thiab corrosion kuj ntawm biomedical implants.
Cov txheej txheem tshuaj lom neeg tshwj xeeb koom nrog hauv titanium alloy CVD txheej txheej tau ua tiav los ntawm cov txheej txheem CVD, txheej txheem nyias-zaj duab xis tso cov yeeb yaj kiab ntawm cov khoom siv hauv substrate los ntawm cov tshuaj tiv thaiv roj-theem. Kev npaj ntawm titanium alloy CVD txheej feem ntau suav nrog kev xaiv ua ntej, kev qhia txog cov pa roj carbon monoxide rau hauv cov tshuaj tiv thaiv chamber, cov tshuaj tiv thaiv saum npoo, thiab cov yeeb yaj kiab tso rau hauv cov yeeb yaj kiab titanium alloy ntawm cov substrates.
Sib piv qhov zoo thiab qhov tsis zoo ntawm CVD txheej tiv thaiv lub cev Vapor Deposition (PVD) txheej qhia ob peb lub ntsiab lus tseem ceeb. CVD coatings ua tau zoo hauv cov kauj ruam kev pab cuam, tso cai rau cov yeeb yaj kiab tsis sib xws txawm nyob rau ntawm qhov chaw zoo li qub. Lawv feem ntau muab cov coatings tuab dua li ntawm 10-20μm, piv rau PVD txheej ntawm 3-5μm, muab qhov zoo dua rau cov ntawv thov uas xav tau cov txheej tiv thaiv tuab dua. CVD thev naus laus zis muaj ntau yam, thiab muaj feem xyuam rau ntau yam kev tso tawm cov yeeb yaj kiab, suav nrog cov yeeb yaj kiab doped lossis tsis tau hloov.
Txawm li cas los xij, CVD cov txheej txheem ua haujlwm ntawm qhov kub thiab txias (800-1000 degree), xav tau cov ntaub ntawv nrog qhov kub thiab txias. Nyob rau hauv sib piv, PVD txheej txheem ntawm qis kub ib ncig ntawm 500 degree yog ntau haum rau txheej precision cov cuab yeej. Thaum cov txheej txheem PVD raug suav tias yog ib puag ncig tus phooj ywg nrog kev ua qias tuaj qis thiab cov nqi tso nyiaj ntau dua li CVD, lawv yuav tsis muaj cov kauj ruam kev pab them nqi thiab cov thickness tswj uas CVD txheej muaj.
Hauv kev xaus, titanium alloy CVD txheej thev naus laus zis txhim kho kev ua haujlwm thiab siv tau ntawm titanium alloys thoob plaws aerospace, biomedical, thiab kev lag luam kev lag luam. Nws lub peev xwm los muab qhov tshwj xeeb hnav tsis kam, tiv thaiv corrosion, thiab thermal stability underscores nws qhov tseem ceeb hauv ntau qhov kev lag luam, qhia nws lub luag haujlwm tseem ceeb hauv kev nce qib ntawm cov khoom muaj peev xwm thiab kev ua haujlwm.
