Kev tawg ntawm txheej (kev ua tsis tiav ntawm kev nplaum) yog qhov teeb meem zoo uas tshwm sim ntau hauvkev siv tshuab nqus tsev, cuam tshuam ncaj qha rau kev ntseeg tau ntawm cov khoom, kev ruaj khov, thiab kev ua haujlwm. Tsab xov xwm no tshuaj xyuas cov hauv paus ntawm kev tawg los ntawm kev xav ntawm kev sib txuas ntawm cov khoom sib txuas, cov txheej txheem txheej txheem, cov khoom siv, thiab cov yam ntxwv ib puag ncig, thaum tawm tswv yim cov tswv yim txhim kho kom zoo.
1. Kev sib txuas tsis txaus ntawm lub ntsej muag
Lub zog lo rau ntawm cov txheej thiab cov khoom siv yog qhov tseem ceeb rau kev tiv thaiv kev tawg. Cov pa phem ntawm qhov chaw (piv txwv li, roj, oxides, lossis cov dej noo uas nqus tau) lossis kev kho ua ntej ntawm qhov chaw tsis txaus (piv txwv li, kev ntxuav plasma, kev siv ion bombardment) tuaj yeem txo cov zog interfacial, ua rau cov txheej sib cais hauv zos lossis tag nrho. Tsis tas li ntawd, qhov tsis sib xws hauv cov coefficient ntawm thermal expansion (CTE) ntawm cov khoom siv thiab cov txheej tsim kev ntxhov siab sab hauv thaum lub sijhawm thermal, ua rau kev sib txuas ntxiv mus.
2. Kev Tswj Xyuas Cov Txheej Txheem Tsis Zoo
Qib Nqus Tsev Tsis Txaus: Cov roj seem (piv txwv li, O₂, H₂O) uas tau koom ua ke thaum lub sijhawm tso tawm tsim cov qauv porous lossis cov theem impurity, txo cov txheej txheem ntom ntom.
Kev Tso Tawm Ntau Dhau: Kev loj hlob sai ntawm cov txheej txheem ua rau muaj qhov tsis zoo (piv txwv li, qhov hws, cov qauv columnar), ua rau muaj kev ntxhov siab ntau ntxiv.
Kub Tsis Tsim Nyog Rau Cov Khoom Siv: Kub qis txwv tsis pub atomic mobility, cuam tshuam kev sib sau ua ke; kub ntau dhau yuav ua rau interfacial diffusion lossis theem hloov pauv, tsim cov khaubncaws sab nraud povtseg brittle.
Lub zog hluav taws xob tsis zoo lossis lub zog plasma: Kev foob pob ion tsis sib npaug tuaj yeem ua rau muaj kev puas tsuaj rau ntawm lub ntsej muag lossis kev ntxhov siab ntau dhau.
3. Kev Xaiv Khoom Siv thiab Kev Tsim Qauv Tsis Zoo
Kev Tsim Txheej Txheem Tsis Zoo: Tsis muaj cov txheej hloov pauv lossis cov txheej sib phim ua rau muaj kev ntxhov siab sai sai.
Qhov Nyuaj/Qhov Roughness ntawm Cov Khoom Siv Tsis Sib Xws: Cov nplaim du dhau ua rau txo qhov kev sib txuas ntawm cov khoom siv, thaum qhov roughness siab yuav ua rau tsis sib npaug lossis arc.
4. Tej Yam Ib puag ncig thiab Tom Qab Kev Kho Mob
Kev raug rau kev kub hnyiab, kev poob siab ntawm lub cev, lossis kev xeb los ntawm tshuaj lom neeg tom qab tso tawm tuaj yeem ua rau muaj kev tawg vim yog kev ntxhov siab ntawm kev qaug zog lossis kev sib kis ntawm kev xeb. Kev kho tom qab tsis raug (piv txwv li, cov kev teeb tsa annealing tsis raug) kuj tseem yuav ua rau muaj kev ntxhov siab ntxiv.
Cov Kev daws teeb meem pom zoo
Txhim kho cov txheej txheem ntxuav thiab ua kom cov substrate ua haujlwm zoo, xws li kev ntxuav Ar⁺ sputter lossis kev kho ua ntej.
Tswj xyuas kom meej qhov nrawm ntawm kev tso dej, qhov kub ntawm cov substrate, thiab lub zog bias, suav nrog kev saib xyuas hauv qhov chaw.
Txhim kho cov qauv txheej txheem los ntawm kev simulation, suav nrog cov khaubncaws sab nraud povtseg kev ntxhov siab (piv txwv li, Cr lossis Ti txheej hloov pauv).
Tsim kom muaj cov txheej txheem tshuaj xyuas zoo, suav nrog cov txheej txheem ntsuam xyuas kev nplaum xws li kev kuaj khawb thiab kev kuaj rub tawm.
Xaus lus, kev sib cais ntawm cov txheej txheej yog los ntawm kev sib cuam tshuam ntawm ntau yam. Ib txoj hauv kev holistic uas koom ua ke kev txhim kho cov txheej txheem thiab kev tsim kho tshiab ntawm cov khoom siv yog qhov tseem ceeb los txhim kho kev ua tau zoo ntawm cov khoom txheej hauv kev pabcuam.
— Tsab xov xwm no tau luam tawm los ntawmcov khoom siv nqus tsev txheej Chaw tsim khoom Zhenhua Lub Tshuab Nqus Tsev
Lub sijhawm tshaj tawm: Kaum Ib Hlis-12-2025