Cov nyhuv ntawm Arc qhov chaw tam sim no rau Cov Kev Sib Txhuam Coefficient Of Tin Films
Jun 20, 2018| Txo qhov kev sib txhuam coefficient ntawm zaj duab xis yuav pab txhawb nws txoj kev ua haujlwm, uas tuaj yeem ua haujlwm rau lub neej ntawm kev ua haujlwm. Los ntawm cov ntsiab lus saum toj no thiab, peb tuaj yeem pom qhov arc source tam sim no muaj ib lub zog zoo rau ntawm qhov zoo ntawm zaj duab xis, thiab yog li ntawd muaj ib qho tseem ceeb ntawm kev txhuam coefficient.
Daim duab 1 qhia txog cov cwj pwm ntawm cov cwj pwm ntawm cov yeeb yaj kiab thiab txoj kev sib raug zoo ntawm lub cuab tam tam sim no thiab kev txhuam coefficient. Raws li pom nyob hauv daim duab, txoj kev sib txhuam coefficient ntawm zaj duab xis maj tsub raws li cov keeb kwm tam sim no. Ntawm cov dej siab, qhov chaw muaj lub hom phiaj muaj qhov kub dua, ua rau ntau tshaj li qhov ua tau thiab cov pawg ua kom muaj zog dua thiab lawv tsis yooj yim los ntawm lwm cov neeg thaum lub tsiv ntawm qhov chaw khawb tawm mus rau lub substrate ( qauv). Qhov kub yog siab thaum lawv ncav lub nplaim ntawm cov substrate (qauv), yog li lub diffusion ntawm lub nplaim ceev ceev, thiab cov nqi dej ntawm zaj duab xis yog ib qho yooj yim heev. Lub xub ntiag ntawm cov zauv loj no ua rau lub qhov ntxhib ntawm qhov kawg coated zaj duab xis nto raws li cov khoom loj loj thiab muaj nuj nqis. Yog li ntawd, nyob rau hauv tib lub tej yam kev mob, txoj kev sib txhuam coefficient ntawm high-current-plated TiN film ntau dua li ntawm cov yeeb yam me me-tam sim no.
a) I = 40A; b) Kuv = 70A; c) kuv = 80A; d) Kuv = 90A; e) polished stainless hlau substrate; f) kev sib raug zoo ntawm kev sib tw arc thiab tam sim no zaj duab xis txhuam coefficient
Daim duab 1 Kauj ruam ntawm kev sib tw ntawm cov yeeb yaj duab coated nrog txawv arc qhov currents thiab polished high-speed steels
Los ntawm cov qauv ntawm cov yeeb yam ntawm cov yeeb yaj duab, nws pom tau tias thaum lub arc qhov tam sim no yog 40 A, txoj kev sib tw ntawm TiN zaj duab xis tsis tshua muaj, tab sis thaum lub arc source tam sim no, qhov zoo ntawm cov zaj duab xis vim qhov nce ntawm qhov mob, thiab txhuam kev quab yuam nce. Thaum pib, vim muaj kev vibration, qee qhov curves fluctuate, tab sis nws ruaj stabilizes nrog lub sij hawm dhau.
Sib piv cov yeeb yam kev sib tw ntawm cov films coated nrog 40 A ntawm arc qhov tam sim no thiab cov txhuam txhuam ntawm polished high-speed hlau, nws yuav pom tau hais tias kev sib txhuam yuam ntawm zaj duab xis yog tsawg tshaj li ntawm polished high-speed hlau, lub mob ntawm qhov saum npoo ntawm TiN nyias zaj duab xis uas tso nyob rau hauv qis tam sim no muaj me me loj thiab ntau, cov roughness tsawg. Nrog rau kev nce ntawm qhov tam sim no, cov kev sib txhuam ntawm cov co Tig zaj duab xis yog correspondingly ntau zog, uas txhais tau hais tias qhov zoo ntawm qhov nyias zaj duab xis coated nrog ib tug loj tam sim no cia. Ntxiv mus, cov curves no kuj muaj kev cuam tshuam qhov sib txawv hauv qhov kev hloov ntawm qhov pib tsis ruaj tsis khov mus rau thaj chaw khov kho. Thaum kuv = 40 A, thaj tsam kev hloov pauv deb heev. Txoj kev hloov pauv ntawm polished high-speed hlau yog tiaj thiab du. Raws li qhov qub zuj zus, txoj hauv kev hloov cheeb tsam no kuj maj mam ua ntse, uas, twb tau sib tham saum toj no, yog qhov tshwm sim ntawm cov khoom ntim ntawm cov yeeb yaj kiab.
Muaj qee qhov kev cai rau cov kev hloov hauv kev txhuam tus yam ntxwv. Thaum pib, qhov saum npoo ntawm zaj duab xis yog raug rau ib qho kev quab yuam, thiab lub plhom feem cuam tshuam los ntawm kev cuam tshuam. Txij li thaum cov dej me me no tsuas yog sib koom ua ke ntawm cov yeeb yaj kiab, lawv yooj yim tau tawg tawm, thiab txoj kev sib txhuam me me. Tom qab ntawd, qhov kev sib txhuam quab yuam ua ke nrog lub plhom loj loj muab faus tob hauv zaj duab xis, cov yeeb tshuaj no yuav tsis yooj yim li, ces qhov kev sib txhuam dheev dheev tuaj thiab ces stabilizes. Cov dej khov tob hauv zaj yeeb yaj kiab uas muaj feem xyuam rau cov kab mob tam sim no. Yog hais tias tus kab mob tshwm sim tam sim no me me, cov mob me me ntawm qhov loj thiab ntau, yog li cov kua faus nyob hauv zaj yeeb yaj kiab me thiab, thiab zaj yeeb yaj kiab muaj kev sib zog me me. Raws li cov arc tuaj tam sim no, cov mob kuj nce thiab ua loj dua, yog li cov lus sib zog quab yuam nce.