Mukushandiswa kwemafuta emuviri (PVD), kuwanda kwemafirimu ndeimwe yezviratidzo zvikuru zvinoratidza mashandiro ekugadzira machira emagetsi, emagetsi, uye ekudzivirira ngura. Kune machira akaomarara, mafirimu ekushongedza, machira emagetsi, uye mafirimu matete anoshanda, chimiro chakasimba chinowanzobatanidzwa nekunamatira kuri nani, kuomarara kwakanyanya, kuderera kwevhudzi, uye kuramba kwakavandudzwa kwekupfekwa uye kuora kwezvakatipoteredza.
Zvisinei, kuwedzera simba rekuisa firimu hakungoonekwi nekungowedzera simba rekuisa firimu kana mwero wekuisa firimu. Pachinyanya kukosha, zvine chekuita nehukuru hwesimba rinoendeswa kufirimu iri kukura, iro rinodzora kufamba kwepasi, kupararira kweadatom, maitiro e nucleation, kukura kwetsanga, uye kushanduka kwehurema panguva yekuisa firimu.
Kunzwisisa hukama huripo pakati pesimba rinopinda, ion bombardment, tembiricha ye substrate, uye firimu microstructure saka kwakakosha pakugadzirisa maitiro ePVD.
1. Chii chinonzi Kuwanda Kwesimba muPVD?
MuPVD, izwi rekuti simba rehuwandu rinowanzo tsanangura huwandu hwesimba rinounzwa ku substrate kana firimu rinokura pachikamu chimwe nechimwe uye mukati menguva yakatarwa yekushanda. Mu practical process engineering, rinobatanidzwa zvakanyanya ne parameters dzakadai se ion energy, ion flux, substrate bias, plasma density, discharge power, deposition rate, uye substrate temperature.
Pamaitiro ePVD ane ionized, kunyanya cathodic arc deposition uye high-power magnetron sputtering, firimu rinokura haringosanganiswi chete nemarudzi e neutral deposition asiwo ne energetic ions. Kana substrate bias yakakodzera ikashandiswa, maion aya anokurumidziswa kuenda pamusoro pe substrate, zvichiendesa simba kufirimu rinokura.
Simba iri rinokanganisa kufamba kwemaatomu nemaion ari pamusoro. Simba rakakwana rinobvumira maadatomu kukunda zvipingamupinyi zvekupararira kwenzvimbo, kufamba achienda kunzvimbo dzakanaka, uye kuzadza maburi madiki ari mufirimu iri kukura. Nekuda kweizvozvo, firimu rinogona kushanduka kubva pachimiro chine maburi kuenda pachimiro chakakora, chakamanikana.
Saka, kuwanda kwesimba kunofanirwa kuonekwa sezambuko rakakosha pakati pemagadzirirwo ePVD uye chimiro chekupedzisira chefirimu.
2. Nei Simba Rinoiswa Richisarudza Kuwanda Kwemafirimu
Pakutanga kwekuiswa kwechinhu, maatomu kana maion anosvika panzvimbo yacho haagadziri jira rakakwana ipapo ipapo. Anoungana pamusoro, anotama, uye zvishoma nezvishoma anoumba zvitsuwa zvinozopedzisira zvabatana kuita firimu rinoenderera mberi.
Kana mhuka dziri kusvika dzisina simba rakakwana rekufamba kwemhepo, kufamba kwadzo pamusoro kunenge kwakaderera. Dzinogona kuramba dziri pedyo nenzvimbo dzadzo dzekutanga dzekumhara, zvichikonzera kupararira kwepasi kusina kukwana uye kuumbwa kwenzvimbo dzisina chinhu. Sezvo nzvimbo idzi dzichiramba dzichiiswa, nzvimbo idzi dzinogona kukura kuita nzvimbo ine maburi madiki uye ine maburi mashoma.
Chiitiko ichi chinonyanya kukosha mumaitiro ekuisa ma ion mumhepo ine tembiricha yakaderera kana masisitimu anoshanda asina ma ion akakwana.
Kana simba rinounzwa kufirimu riri kukura rikawedzerwa kusvika padanho rakakodzera, kupararira kwepasi kunotanga kushanda zvakanyanya. Mhando dzakachengetwa dzinogona kufamba pamusoro pevhu dzotora nzvimbo dzine simba shoma, nepo ion bombardment ichigona kukurudzira kurongwa kwemaatomu, kuderedza defect, uye kuvhara kwevasina chinhu. Firimu rinobuda rinowanzo ratidza chimiro chakasimba uye kubatana kwakasimba kweinterfacial.
Kubva pamaonero ezvipenyu zvidiki, chinangwa hachisi chekungo "wedzera simba," asi kugadzira chiyero chakakodzera chesimba-ku-kuyerera panguva yekukura kwefirimu.
3. Basa reKusarura kweSubstrate
Pakati pema PVD process parameters aripo, substrate bias voltage ndeimwe yenzira dzakananga dzekudzora simba remaion bombardment.
Kushandisa negative bias ku substrate kunoita kuti pave nemagetsi anokonzera kuti maion ane positive charged aende pamusoro pe substrate. Kuwedzera hukuru hwe bias kunowanzowedzera simba re impact ion, izvo zvinogona kuwedzera kushanda kwe surface uye film density.
Semuenzaniso, pakuiswa kweTiN, CrN, TiAlN, DLC, nezvimwe zvinhu zvinoshanda, mamiriro akakodzera ekusarudza anogona kuvandudza huwandu hwefirimu, kuomarara, kunamira, uye kuramba kupfeka.
Zvisinei, hukama huripo pakati pemagetsi ekubiridzira nehunhu hwefirimu hahuna kurongeka. Kana simba remaion bombardment rikawandisa, migumisiro yakawanda isingafadzi inogona kuitika, kusanganisira kudzokorodza, kuisa zvinhu mumidziyo, kuunganidzwa kwezvinosara, kupisa kwemidziyo, kugadzira zvikanganiso, uye kunyange kukuvara kwemidziyo.
Kuputika kwemaion akawanda kunogonawo kubvisa maatomu akambochengetwa kubva pamusoro pefirimu, zvichideredza mwero wekuisa maatomu uye zvinogona kuchinja chimiro chependi.
Saka, kusarura kwakakodzera kwe substrate kunofanirwa kusarudzwa zvichienderana nezvinhu zve substrate, system yekuvhara, mhando dzeion, huwandu hweplasma, mwero wekuisa, uye hunhu hwefirimu hunodiwa, pane kungotevera voltage yakakwira yekusarudza.
4. Ion Flux neIon Energy Zvinofanira Kufungwa Pamwe Chete
Kuwanda kwemafirimu kunodzorwa nesimba rinopfuura remaion chete. Kuyerera kwemaion, kureva huwandu hwemaion anosvika pasi pevhu panzvimbo imwe neimwe nenguva, kwakakosha zvakaenzana.
Kuyerera kwemaion ane simba guru kunogona kuchinja zvakanyanya firimu riri kukura, asi kana kubuda kwemaion kwakaderera zvakanyanya, simba rese rinoendeswa kufirimu rinogona kuramba risina kukwana. Kusiyana neizvi, kubuda kwemaion akawanda kwazvo pasimba rakawandisa kunogona kukonzera kubhomba kwakanyanya uye kupopotedzana kusingadiwe kana kuzara kwemafuta.
Nekuda kwechikonzero ichi, kufambira mberi kwemaitiro ePVD kuri kuwedzera kutarisisa pakudzora hukama hwakabatana pakati pesimba reion ne ion flux, pane kubata substrate bias separamita yakaparadzana.
Hukama uhwu hwakakosha zvikuru mumaitiro ekuisa ionized zvakanyanya akadai se cathodic arc PVD uye high-power impulse magnetron sputtering (HiPIMS). Nekuwedzera ionization fraction ye deposition species, matekinoroji aya anopa kushanduka kukuru mukudzora simba rinounzwa kufirimu riri kukura.
5. Kuwanda kweSimba uye Kushanduka kweZvivako Zvidiki
Simba rehuwandu hwesimba rinogonawo kunzwisiswa kuburikidza nekushanduka kwemaumbirwo efirimu.
Kana zvinhu zvisina simba rakawanda, kufamba-famba pamusoro pemvura kunogona kukonzera kukura kusina simba kana kuti kwekoramu, kunyanya kana tembiricha yemuvhu iri pasi uye mhando dzakachengetwa dzisina kufamba kwakakwana.
Sezvo simba richikwira mukati menguva yakakodzera, kupararira kwenzvimbo kunowedzera kushanda uye chimiro che microstructure chinowedzera kusimba. Miganhu yegorosi nemaburi epakati pemakoramu zvinogona kuderedzwa, nepo chifukidziro chichiwedzera kuenderera mberi uye kugadzikana kwemuchina.
Zvisinei, nekuwedzera kwehuwandu hwesimba, maitiro acho anogona kupinda muhurongwa hwakasimba hwemaion bombardment. Kupopota uye kupenya kweatomu zvinova zvakanyanya kukosha, zvichikonzera kumanikidzwa kwakanyanya kwekumanikidzwa. Kunyangwe chifukidziro chingaramba chakasimba, kushushikana kwakanyanya kwemukati kunogona kuderedza kunamira uye kutungamira mukutsemuka kana kupatsanuka.
Nekuda kweizvozvo, kazhinji pane mukana wekuwana huwandu hwakanaka hwesimba pane hukama huri nyore apo simba rakawanda rinogara richigadzira mafirimu ari nani.
6. Kuwanda kwesimba uye "Atomic Peening" Mhedzisiro
Imwe yenzira dzakakosha dzinobatanidzwa nekubhomba kwemaion ane simba ndeyekuita kweatomu peening effect.
Munguva yekubhomba kwemaion ane simba, maion anouya anotamisa simba kumaatomu epamusoro, zvichikonzera kutama kwemaatomu ari munzvimbo imwe chete uye kurongwa patsva. Izvi zvinogona kumanikidza maatomu kupinda muchimiro chakabatana zvakanyanya uye kudzvinyirira kukura kwehuwandu hwakavhurika mukati mefirimu rinokura.
Mugumisiro wacho unogona kuva muchimiro che microstructure chakasimba chine kuoma kwakawedzerwa uye kugadzikana kwemuchina.
Maitiro aya anonyanya kukosha kune machira ePVD akaomarara. Kune masisitimu akadai seTiN, CrN, TiCN, AlTiN, uye machira enitride ane hukama, kuputirwa kwemaion kwakakodzera kunogona kubatsira mukuwedzera kwehuwandu hwemafirimu uye kuwedzera mashandiro emakanika.
Zvisinei, kupinza maatomu zvakanyanya kunogona kukonzera kushushikana kwakanyanya. Saka, kuputira kwakasimba hakusi iko kuputira kwakakodzera kana kushushikana kwaro kwemukati kuchipfuura kugona kwekunamatira kwe substrate/coating interface.
Chinangwa chinoshanda ndechekuenzanisa pakati pekuwanda kwefirimu, kushushikana kwasara, kunamira, kuomarara, uye mwero wekuiswa kwechinhu.
7. Chiyero cheKuisa Mari Chinochinjawo Simba Rakakwana
Kuwanda kwesimba hakugone kuongororwa pasina kudzvanywa nehuwandu hwesimba rakapihwa.
Kana mwero wekuiswa kwechinhu ukawedzera zvakanyanya nepo mamiriro ekuputirwa kwechinhu achiramba asina kuchinja, chiyero chekuputirwa kwechinhu chine simba kune chinobuda chinogona kudzikira. Nemamwe mashoko, zvinhu zvakawanda zviri kuiswa pasina kuwedzera kwakaenzana kwesimba riripo kukurudzira kupararira kwenzvimbo uye kugadziriswa kwechimiro.
Izvi zvinogona kukonzera shanduko kuenda kune microstructure isina kusimba zvakanyanya.
Kusiyana neizvi, kuchengetedza chiyero chakakodzera che ion-to-neutral flux kunogona kubatsira kutsiva shanduko muhuwandu hwekuisa firimu uye kuchengetedza chimiro chefirimu chakafanana.
Ndosaka kugadzirwa kwemaitiro eindasitiri ePVD kuchifanira kunyatsotarisa kwete chete simba uye mwero wekuisa zvinhu, asiwo hukama huripo pakati pehuwandu hwemaion current, simba reion, flux yekuisa zvinhu, uye substrate bias.
8. Kupisa kweSubstrate neIon Bombardment Zvinoshanda Pamwe Chete
Kupisa kwepasi pevhu chimwe chinhu chikuru chinokanganisa kusimba kwefirimu.
Simba rekupisa rinopa maatomu akachengetwa kufamba, ukuwo ion bombardment ichipa simba rekuwedzera kinetic. Maitiro ese ari maviri anogona kukurudzira kupararira kwepasi uye kurongwazve kwechimiro.
Kune zvinhu zvinodzivirira tembiricha zvakaita semapurasitiki ekugadzira, zvikamu zveoptical, nezvimwe zvinhu zvemagetsi, kuwedzera tembiricha ye substrate kungasakwanisika. Muzviitiko izvi, kubhomba kwemaion kunodzorwa kunova kwakakosha zvikuru nekuti kunogona kupa simba rakawedzerwa kufirimu rinokura pasina kuvimba nekupisa kwekupisa chete.
Iyi ndeimwe yezvakanakira zvakakosha zvemaitiro ePVD anobatsira maion: kuwedzera kwefirimu kunogona kuwedzerwa kuburikidza nekukanda masimbi ane simba ukuwo kuchichengetedza tembiricha yakaderera ye substrate.
Kunyange zvakadaro, kuputika kwemaion pachako kunounza kupisa. Nokudaro, tembiricha ye substrate inofanira kuramba ichitariswa panguva yese yekuiswa kwemafuta kudzivirira kushanduka kwekupisa kana kudzikira kwezvinhu zvinonzwa kupisa.
9. Kuwanda kwesimba kunofanira kuenzaniswa neCoating System
Zvinhu zvakasiyana-siyana zvekuputira zvine zvinodiwa zvakasiyana zvekushandiswa kwemaion bombardment uye simba rinopinda.
Kune hard nitride coatings, ion bombardment ine simba rinowanzo batsira pakuwana high density, high hardness, uye strong adhesion. Kune optical coatings, ion bombardment yakawanda inogona kukonzera stress kana kuchinja refractive-index uniformity. Kune simbi decoration coatings, ion energy yakawanda inogona kukanganisa surface morphology, gloss, color, uye residual stress.
DLC nedzimwe mbatya dzakagadzirwa nekabhoni dzinonyanya kunzwisiswa nekuenzana kuripo pakati pesimba reion nemamiriro ekuisa ion nekuti simba reion rinogona kukanganisa magadzirirwo ebonding uye nekudaro chiyero chiripo pakati pesp² nesp³ bonding.
Saka, hapana "simba rakakwana" rinoshanda kune pendi yega yega yePVD. Hwindo rekugadzirisa rakakodzera rinofanira kusimbiswa zvichienderana nehurongwa hwezvinhu, substrate, ukobvu hwefirimu, mwero wekuisa, hunhu hwemakanika hunodiwa, zvinodiwa nemaziso, uye miganhu yekupisa.
10. Kubva paMagadzirirwo Emagadzirirwo Emafirimu Kuenda paKushanda Kwemafirimu
Mukugadzirwa kwePVD mumaindasitiri, huwandu hwesimba hunofanira kuongororwa kuburikidza nehunhu hwemafirimu hunoyerwa kwete kuburikidza nematanho ekuita chete.
Nzira yekuisa simba yakanyatsogadziriswa inofanira kubatsira mukuvandudza huwandu hwemafirimu, kuomarara, kunamira, kuramba kupfeka, kuramba ngura, kugadzikana kwemaziso, uye kushanda kwezvipingamupinyi, zvichienderana nekushandiswa.
Nzira dzekutarisa hunhu dzakadai seSEM, XRD, nanoindentation, scratch testing, residual-stress measurement, surface roughness analysis, uye film-thickness mapping dzinogona kushandiswa kusimbisa hukama huripo pakati pe process parameters uye coating performance.
Izvi zvinobvumira maitiro ePVD kuti abve pakugadzirisa zviri nyore kuenda kuhwindo remaitiro akarongeka uye nzira yekudzora magadzirirwo ema microstructure.
Mhedziso
MuPVD, kuwanda kwesimba chimwe chezvinhu zvikuru zvinodzora shanduko kubva pakuvaka zvinhu zvisina kurongeka kuenda kumafirimu akakora uye akasimba. Simba remaion rakakodzera uye flux yemaion zvinogona kuwedzera kupararira kwenzvimbo, kukurudzira kurongwazve kwemaatomu, kuderedza kuumbwa kwevhudzi, uye kuvandudza kuzara kwemafirimu.
Zvisinei, simba rakawanda harirevi kuti rinoita zviri nani pakuputira. Kuputika kwemaion zvakanyanya kunogona kukonzera kupopota, kupisa kwesubstrate, kumanikidzwa kwakanyanya, uye kukuvara kweinterface. Chinhu chikuru ndechekugadzira chiyero chakanaka pakati pesimba reion, flux yeion, chiyero chekuisa, bias yesubstrate, density yeplasma, uye tembiricha yesubstrate.
Saka, pamichina yemazuva ano yePVD, kugona kudzora simba rinopinda hakusi nzira yekuwedzera kushanda zvakanaka kwekuisa simba—isimba guru rekugadzira magadzirirwo emafirimu uye kuwana kushanda kwakasimba uye kudzokororwa kwepurasitiki.
-Chinyorwa ichi chakabudiswa namugadziri wemidziyo yekuputira vacuum Zhenhua Vacuum
Nguva yekutumira: Nyamavhuvhu-04-2026