Ngesikhathi se-evaporation coating, i-nucleation kanye nokukhula kongqimba lwefilimu kuyisisekelo sobuchwepheshe obuhlukahlukene be-ion coating
1.I-nucleation
Inubuchwepheshe be-vacuum evaporation coating, ngemva kokuba izinhlayiya zesendlalelo sefilimu zihwamukile emthonjeni wokuhwamuka ngendlela yama-athomu, zindiza ngqo ku-workpiece ku-vacuum ephezulu futhi zakha ungqimba lwefilimu nge-nucleation nokukhula ebusweni bomsebenzi wokusebenza. Ngesikhathi sokuhwamuka kwe-vacuum, amandla ama-athomu ongqimba lwefilimu aphuma emthonjeni wokuhwamuka angaba ngu-0.2eV. Lapho ukuhlangana phakathi kwezinhlayiya zesendlalelo sefilimu kukhulu kunamandla okubopha phakathi kwama-athomu ongqimba lwefilimu nomsebenzi, yakha inucleus yesiqhingi. I-athomu yesendlalelo sefilimu eyodwa ihlala phezu kwendawo yokusebenza isikhathi eside yenza ukunyakaza okungajwayelekile, ukusakazeka, ukufuduka, noma ukungqubuzana namanye ama-athomu ukuze akhe amaqoqo e-athomu Inani lama-athomu kuqoqo le-athomu lifinyelela inani elithile elibalulekile, kwakheka i-nucleus ezinzile, ebizwa ngokuthi i-nucleus emise okwehomogeneous.
bushelelezi, futhi iqukethe iziphambeko eziningi nezinyathelo, ezidala umehluko kumandla okukhangisa wezingxenye ezihlukene zocezu lokusebenza kuma-athomu akhipha imisebe. Amandla e-adsorption ebusweni besici makhulu kunendawo evamile, ngakho-ke iba isikhungo esisebenzayo, esivumelana ne-nucleation ethandwayo, ebizwa ngokuthi i-heterogeneous nucleation. Lapho amandla okuhlangana elingana namandla okubopha, noma amandla okubopha phakathi kwama-athomu ulwelwesi kanye nomsebenzi mkhulu kunamandla okuhlangana phakathi kwama-athomu olwelwesi, kwakheka isakhiwo se-lamellar. Kubuchwepheshe be-ion plating, i-island core yakhiwa ezimweni eziningi.
2.Ukukhula
Uma umnyombo wefilimu sewakhiwe, uyaqhubeka nokukhula ngokubamba ama-athomu esigameko.Iziqhingi ziyakhula futhi zihlangane ndawonye ukuze zakhe ama-hemispheres amakhulu, kancane kancane zakha ungqimba lwesiqhingi oluyi-hemispherical olusakazeka phezu kwendawo yokusebenza.
Uma amandla e-athomu engqimba yefilimu ephakeme, angasakazeka ngokwanele ebusweni futhi ifilimu eqhubekayo ebushelelezi ingase yakheke lapho amaqoqo alandelayo angenayo e-athomu emancane.Uma ukusakazeka kwama-athomu endaweni kubuthakathaka futhi nosayizi wamaqoqo afakiwe mkhulu, akhona njengenuclei enkulu ye-peninsular.Umgogodla unomphumela oqinile wengxenye yesiqhingi umphumela”.I-projection of the surface ivumela kakhulu ukubamba ama-athomu afakwe kamuva kanye nokukhula okukhethekile, okuholela ekukhuleni kwezinga lokugoqa phezulu ukuze kwakheke amakristalu ayikholamu noma amakholomu anosayizi owanele. Ama-voids angena ngaphakathi akhiwa phakathi kwamakristalu ayi-conical kanye nenani lokuma okungaphezulu liyakhuphuka.Izicubu ezinhle zingatholakala ku-vacuum ephezulu, ngokuncipha kwe-vacuum degree, i-microstructure ye-membrane iba mkhulu futhi ibe mkhulu.
Isikhathi sokuthumela: May-24-2023