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Middiyaha Jikada Ruitai: Ilahaaga Premier ee Midiyaha Jikada ee Gaarka ah ee laga sameeyay Shiinaha
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Middiyaha Jikada Ruitai: Ilahaaga Premier ee Midiyaha Jikada ee Gaarka ah ee laga sameeyay Shiinaha
Waxaa jira laba nooc oo ah hababka dahaarka caadiga ah ee qalabka: kaydinta uumiga kiimikada (cvd) iyo kaydinta uumiga jirka (pvd) hadda. Sanadihii la soo dhaafay, qaar ka mid ah hababka daahan cusub ayaa soo muuqday, kuwaas oo leh rajo codsi oo wanaagsan.
CVD
Habka CVD, kaas oo iska leh dhigaalka atomiga, waa hab lagu sameeyo lakab adag oo dusha sare ee kuleylka kuleylka iyadoo la adeegsanayo uumiga, hydrogen iyo qaybaha kale ee kiimikada ee halide birta heerkulka sare ee 950 ~ 1050 ℃. Nidaamku waxa uu ka kooban yahay saddex marxaladood: uumiga walxaha, gaadiidka agagaarka shaxanka iyo samaynta dul-saarka shaxanka.
Dhammaan noocyada kala duwan ee hababka cvd, vacuum ion bombardment iyo buufinta falcelinta magnetron ion ayaa ah kuwa ugu isticmaalka badan. Tiknoolajiyada cvd waxaa inta badan loo isticmaalaa daahan dusha sare ee qalabka goynta carbide sibidhka, kaas oo ku haboon roughing xawaaraha sare iyo dhamaystirka semi-dhammaynta dhexdhexaad ah iyo mid culus.
Marka la barbardhigo hababka kale ee daahan, habka cvd ma aha oo kaliya faa'iidooyinka qalabka fudud, habka qaan, laakiin sidoo kale waxay leedahay faa'iidooyinka soo socda:
Waxaa jira noocyo badan oo sediments, kuwaas oo lagu dahaadhay karaa biraha, alloys, carbides, nitrides, borides, oxides, carbon nitrides, nitrides oxygen, nitrides hydro-carbon, iwm. Iyada oo la ilaalinayo sare iyo lebis, lakabyo badan oo leh unugyo kala duwan ayaa la heli karaa, dhumucdiisuna waa lebis. Heerka dhigaalku waa sarreeyaa waana fududahay in la xakameeyo. Dahaarka ayaa leh nadiif sare iyo miro dhuuban oo cufan. Ku dheggan xooggan ayaa heli kara dahaar ka sii dhumuc weyn. Qiimaha habka hooseeya, oo ku habboon wax soo saarka ballaaran.
PVD
Habka PVD waa in laga saaro agabka ilaha la beegsanayo qaabab jireed sida uumi-bax ama sputtering, ka dibna lagu shubo uumiga tamarta tamarta ah ee substrate ama qayb ka mid ah dusha sare si ay u sameeyaan lakab filim iyada oo loo marayo vacuum ama nus-vacuum space. Falcelinta uumiga ee atamka birta ah ee la uumi baxay ama la miiray waxay keenaysaa meel dhigista xeryahooda loo baahan yahay ee dusha qalabka. daahan pvd waxaa lagu dahaadhay karaa nitride titanium, titanium carbon nitride, aluminium titanium nitrogen xeryahooda, iyo sidoo kale biraha refractory kala duwan ee carbides iyo nitrides.
Tiknoolajiyada PVD waxaa inta badan loo adeegsadaa daaweynta dusha sare ee aaladaha kaarbiide-ka ee isku dhafan iyo qalabka birta ee xawaaraha sare leh. Waxaa si weyn loo isticmaalay daahan daahan ee xoogaa carbide sibidhka, wax shiida gooyay, reamer, tuubada, qalab qaab gaar ah, alxanka qalab iyo wixii la mid ah.
MT-CVD
Dahaarka tcn oo leh qaab-dhismeedka kristalin-ka-cafilan ee cufan waxaa lagu heli karaa kaydinta uumiga kiimikada heerkulka dhexdhexaadka ah (MT-CVD) at 700 ~ 900 ℃. Dhumucda daahan waxay gaari kartaa 8 ~ 10μm, oo waxay noqon kartaa a2o3, tiin on lakabka dusha by technology cvd.
Daab daahan MT-CVD waxay ku habboon tahay xawaaraha sare, heerkulka sare, culeyska weyn, xaaladaha goynta qalalan, nolosheeda waxay ku saabsan tahay laba jeer ka badan kan daabka caadiga ah. cvd cilladda ugu weyn ee habka ayaa ah in heerkulka meel dhigistu uu sarreeyo, iyo baabi'inta aaladda iyo qallafsanaanta waxay dhici doontaa marka qalabka birta ee xawaaraha sarreeya la dahaadho. Markaa aaladda la dhigay waa in la demiyo.
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