Munguva yekuputira evaporation, iyo nucleation uye kukura kweiyo firimu layer ndiyo hwaro hweakasiyana ion coating tekinoroji
1.Nucleation
Invacuum evaporation coating tekinoroji, mushure mekunge firimu rezvikamu zvimedu zvanyungudutswa kubva kumhepo inoputika muchimiro chemaatomu, dzinobhururuka dzakananga kune workpiece mu high vacuum uye dzinogadzira firimu remukati ne nucleation uye kukura pamusoro pebasa rekushanda.Munguva yevacuum evaporation, simba remaatomu emufirimu rinobuda kubva kumhepo inoputika rinenge 0.2eV.Kana kubatana pakati pezvimedu zvemufirimu kwakakura kupfuura simba rekubatanidza pakati pemaatomu emutsetse wefirimu uye workpiece, gadzira nucleus yechitsuwa.Atomu rimwechete remufirimu rinoramba riri pamusoro pechishandiso kwenguva yakareba ichiita kufamba kusingaenzaniswi, kupararira, kutama, kana kubonderana nemamwe maatomu kuti aumbe masumbu emaatomu. nucleus inoumbwa, inonzi homogeneous shaped nucleus.
yakatsetseka, uye ine hurema hwakawanda nematanho, izvo zvinokonzeresa mutsauko musimba rekushambadza rezvikamu zvakasiyana zveworkpiece kumaatomu eradioactive.Iyo adsorption simba repamusoro pechirema rakakura kupfuura iro renzvimbo yakajairwa, saka rinova iro muzinda unoshanda, unobatsira kune yakasarudzika nucleation, inonzi heterogeneous nucleation.Kana simba rekubatanidza rakaenzana nechisimba chinosunga, kana simba rekubatanidza pakati pemaatomu e membrane uye workpiece yakakura kudarika simba rekubatana pakati pemaatomu e membrane, iyo lamellar structure inoumbwa.Mune ion plating tekinoroji, musimboti wechitsuwa unoumbwa mune dzakawanda zviitiko.
2.Kukura
Kamwe musimboti wefirimu wakaumbwa, unoramba uchikura nekuteya maatomu echiitiko.Zvitsuwa zvinokura uye zvinosangana pamwe chete kuti zvigadzire mahemispheres makuru, zvishoma nezvishoma zvichiita hemispherical island layer inopararira pamusoro pechiso che workpiece.
Kana simba reatomu rechikamu chemufirimu rakakwirira, rinogona kupararira zvakakwana pamusoro pepamusoro uye firimu rinoenderera mberi rakatsetseka rinogona kuumbwa kana mapoka eatomu anotevera ari madiki. masumbu akaiswa ihombe, aripo sehombe peninsular nuclei.Kumusoro kwechiwi chepakati kune simba remumvuri pachikamu checoncave, ndiko "mumvuri wemhedzisiro".Kuratidzwa kwepamusoro kunobatsira kutora maatomu akaiswa anotevera. uye kukura kwakasarudzika, zvichikonzera kuwedzera kwechiyero che concavity pamusoro pekuita conical kana columnar makristasi ehukuru hwakakwana.Inopinza voids inoumbwa pakati peiyo conical crystals uye pamusoro roughness kukosha kunowedzera.Fine tishu inogona kuwanikwa pakakwirira vacuum, nekuderera kwevacuum degree, iyo microstructure ye membrane inova yakakura uye yakawedzera.
Nguva yekutumira: May-24-2023