Txheej

TEHRAN, 31 Lub Yim Hli (MNA) - Cov kws tshawb fawb los ntawm University of Science thiab Technology MISiS (NUST MISiS) tau tsim cov txheej txheem tshwj xeeb rau kev siv cov txheej txheem tiv thaiv rau cov khoom tseem ceeb thiab cov khoom siv niaj hnub no.
Cov kws tshawb fawb los ntawm Lavxias University MISIS (NUST MISIS) tau lees tias qhov originality ntawm lawv cov thev naus laus zis nyob rau hauv kev sib txuas qhov zoo ntawm peb txoj kev tso tawm raws li cov qauv sib txawv ntawm lub cev hauv ib lub tshuab nqus tsev. Los ntawm kev siv cov txheej txheem no, lawv tau txais ntau txheej txheej nrog cov cua sov ua haujlwm siab, hnav tsis kam thiab corrosion kuj, Sputnik ceeb toom.
Raws li cov kws tshawb fawb, cov qauv qub ntawm cov txheej txheej tau ua rau 1.5-fold txhim kho corrosion kuj thiab kub-kub oxidation piv rau cov kev daws teeb meem uas twb muaj lawm. Lawv cov txiaj ntsig tau luam tawm hauv International Journal of Ceramics.
"Thawj thawj zaug, kev tiv thaiv txheej txheej ntawm cov electrode raws li chromium carbide thiab cov ntaub ntawv NiAl (Cr3C2-NiAl) tau txais los ntawm kev ua tiav ntawm lub tshuab nqus tsev electrospark alloying (VES), pulsed cathode-arc evaporation (IPCAE) thiab magnetron sputtering ( MS). ) yog ua rau ib yam khoom. Cov txheej txheej muaj cov txheej txheem microstructure, uas ua rau nws muaj peev xwm ua ke cov txiaj ntsig zoo ntawm tag nrho peb txoj hauv kev, "said Philip, Tus Thawj Saib Xyuas Kev Tshawb Fawb "Innatural Diagnostics of Structural Transformations" ntawm MISiS-ISMAN Scientific Center. Kev kawm ntawm Kiryukhantsev-Korneev tsis qhia.
Raws li nws, lawv thawj zaug kho qhov chaw nrog VESA hloov cov khoom siv los ntawm Cr3C2-NiAl ceramic electrode mus rau lub substrate, kom ntseeg tau siab adhesion zog ntawm txheej thiab substrate.
Nyob rau theem tom ntej, thaum lub sij hawm pulsed cathode-arc evaporation (PCIA), ions los ntawm cathode sau qhov tsis xws luag nyob rau hauv thawj txheej, latching kab nrib pleb thiab tsim ib tug denser thiab ntau txheej txheej nrog siab corrosion kuj.
Nyob rau theem kawg, qhov ntws ntawm atoms yog tsim los ntawm magnetron sputtering (MS) mus rau theem saum npoo av. Yog li ntawd, cov txheej txheem kub-resistant sab saum toj yog tsim, uas tiv thaiv cov pa oxygen los ntawm ib puag ncig hnyav.
"Siv kis tau tus mob electron microscopy los kawm txog cov qauv ntawm txhua txheej, peb pom ob qho kev tiv thaiv: qhov nce ntawm cov kabmob muaj peev xwm vim yog thawj txheej ntawm VESA thiab kho qhov tsis xws luag nrog kev siv ob txheej tom ntej. Yog li ntawd, peb tau txais peb-txheej txheej, qhov tsis kam ntawm corrosion thiab high-temperature oxidation nyob rau hauv cov kua thiab gaseous xov xwm yog ib thiab ib nrab lub sij hawm siab tshaj ntawm lub hauv paus txheej. Nws yuav tsis yog ib qho exaggeration hais tias qhov no yog ib qho tseem ceeb tshwm sim, "said Kiryukhantsev-Korneev.
Cov kws tshawb fawb kwv yees tias cov txheej txheem yuav ua rau kom lub neej thiab kev ua haujlwm ntawm cov khoom tseem ceeb ntawm lub cav, cov twj tso kua mis hloov roj thiab lwm yam khoom uas yuav tsum tau hnav thiab corrosion.
Lub Chaw Tshawb Fawb thiab Kev Kawm Rau Tus Kheej Kev Tshaj Tawm Txog Kev Ntsuas Kub Kub (SHS Center), coj los ntawm xibfwb Evgeny Levashov, koom ua ke cov kws tshawb fawb los ntawm NUST MISiS thiab lub koom haum ntawm cov qauv macrodynamics thiab cov ntaub ntawv Science. AM Merzhanov Lavxias Academy ntawm Kev Tshawb Fawb (ISMAN). Nyob rau yav tom ntej, pab neeg tshawb fawb npaj yuav nthuav dav siv cov txheej txheem ua ke los txhim kho cov cua sov-resistant alloys ntawm titanium thiab npib tsib xee rau kev lag luam dav hlau.