Dokar girma ta Layer ɗin fim ɗin rufewa ta injin evaporation

A lokacin shafa mai, nucleation da girma na fim ɗin sune tushen fasahar shafa ion daban-daban.

1. Nukiliya

Infasahar shafa tururin injinBayan an cire barbashi daga tushen ƙafewar a cikin siffar ƙwayoyin halitta, suna tashi kai tsaye zuwa wurin aiki a cikin babban injin tsabtace iska kuma suna samar da layin fim ta hanyar nucleation da girma a saman aikin. A lokacin ƙafewar iska, kuzarin ƙwayoyin halitta na layin fim da ke tserewa daga tushen ƙafewar iska yana kusan 0.2eV. Lokacin da haɗin kai tsakanin barbashi na layin fim ya fi ƙarfin haɗin kai tsakanin ƙwayoyin halitta na layin fim da aikin, suna samar da ƙwayar halitta ta tsibiri. Kwayar halitta ta layin fim guda ɗaya tana tsayawa a saman aikin na tsawon lokacin da take yin motsi mara tsari, yaɗuwa, ƙaura, ko karo da wasu ƙwayoyin halitta don samar da ƙungiyoyin ƙwayoyin halitta. Adadin ƙwayoyin halitta a cikin ƙungiyar ƙwayoyin halitta ya kai wani muhimmin ƙima, ana samar da ƙwayar halitta mai karko, wadda ake kira ƙwayar halitta mai siffar kama.

santsi, kuma yana ɗauke da lahani da matakai da yawa, wanda ke haifar da bambanci a cikin ƙarfin shaye-shaye na sassa daban-daban na aikin ga ƙwayoyin rediyoaktif. Ƙarfin shaye-shaye na saman lahani ya fi na saman al'ada girma, don haka ya zama cibiyar aiki, wanda ke taimakawa ga fiffikon nucleation, wanda ake kira nucleation iri-iri. Lokacin da ƙarfin haɗin kai ya yi daidai da ƙarfin ɗaurewa, ko kuma ƙarfin ɗaurewa tsakanin ƙwayoyin membrane da aikin ya fi ƙarfin haɗin kai tsakanin ƙwayoyin membrane, tsarin lamellar yana samuwa. A cikin fasahar plating ion, ana samar da tsakiyar tsibirin a mafi yawan lokuta.

2. Girma

Da zarar an kafa tushen fim ɗin, zai ci gaba da girma ta hanyar kama ƙwayoyin halittar da suka faru. Tsibiran suna girma kuma suna haɗuwa da juna don samar da manyan duniyoyi, a hankali suna samar da wani yanki na tsibiri mai faɗi wanda ya bazu a saman aikin.

Idan ƙarfin atomic na Layer ɗin fim ɗin ya yi yawa, zai iya yaɗuwa sosai a saman kuma za a iya samar da fim mai santsi mai ci gaba lokacin da tarin atomic masu zuwa suka yi ƙanana. Idan yaduwar atoms a saman ya yi rauni kuma girman tarin da aka ajiye ya yi girma, suna wanzuwa a matsayin manyan ƙwayoyin peninsular. Saman tsakiyar tsibirin yana da tasirin inuwa mai ƙarfi akan ɓangaren concave, wato "tasirin inuwa". Hasashen saman ya fi dacewa don kama atoms da aka ajiye a baya da girma mai fifiko, wanda ke haifar da ƙaruwar matakin concavity akan saman don samar da lu'ulu'u masu siffar conical ko columnar masu girman isa. Ana samar da ramuka masu shiga tsakanin lu'ulu'u masu siffar conical kuma ƙimar taurin saman yana ƙaruwa. Ana iya samun kyallen kyallen a babban injin, tare da raguwar matakin injin, ƙaramin tsarin membrane ya zama mai kauri da kauri.