Ukugqoka

I-TEHRAN, 31 Agasti (MNA) - Abacwaningi abavela eNyuvesi Yesayensi Nobuchwepheshe I-MISiS (NUST MISiS) baye bahlakulela indlela eyingqayizivele yokusebenzisa izimbotshana zokuzivikela ezingxenyeni ezibalulekile kanye nezingxenye zobuchwepheshe besimanje.
Ososayensi abavela e-Russian University MISIS (NUST MISIS) bathi imvelaphi yobuchwepheshe babo ilele ekuhlanganiseni izinzuzo zezindlela ezintathu zokubeka ngokusekelwe ezimisweni ezihlukene zomzimba emjikelezweni owodwa we-vacuum wobuchwepheshe. Ngokusebenzisa lezi zindlela, bathola izigqoko ezinezingqimba eziningi ezinokumelana nokushisa okuphezulu, ukumelana nokugqoka nokumelana nokugqwala, kubika i-Sputnik.
Ngokusho kwabacwaningi, isakhiwo sokuqala se-coating ewumphumela siholele ekuthuthukisweni kwe-1.5-fold in corrosion resistance and high-temperature oxidation uma kuqhathaniswa nezixazululo ezikhona. Imiphumela yabo yashicilelwa ku-International Journal of Ceramics.
Ngokokuqala ngqa, ukuvikela i-electrode okusekelwe ku-chromium carbide kanye ne-binder NiAl (Cr3C2-NiAl) kutholwe ngokusetshenziswa okulandelanayo kwe-vacuum electrospark alloying (VES), ipulsed cathode-arc evaporation (IPCAE) kanye ne-magnetron sputtering ( MS). ) yenziwa entweni eyodwa. I-coating ine-microstructure ehlanganisiwe, okwenza kube lula ukuhlanganisa imiphumela enenzuzo yazo zonke izindlela ezintathu, "kusho uPhilip, iNhloko yeLabhorethri "I-Innatural Diagnostics of Structural Transformations" e-MISiS-ISMAN Scientific Centre. Imfundo yaseKiryukhantsev-Korneev ayibonisiwe.
Ngokusho kwakhe, baqale baphatha i-surface nge-VESA ukudlulisa izinto ezivela ku-Cr3C2-NiAl ceramic electrode kuya ku-substrate, ukuqinisekisa amandla aphezulu okunamathela phakathi kwe-coating ne-substrate.
Esigabeni esilandelayo, ngesikhathi sokuhwamuka kwe-pulsed cathode-arc (PCIA), ama-ion asuka ku-cathode agcwalisa iziphambeko kungqimba lokuqala, avale imifantu bese enza ungqimba oluminyene futhi olufana nolwengeziwe olunokumelana nokugqwala okuphezulu.
Esigabeni sokugcina, ukugeleza kwama-athomu kwakhiwa yi-magnetron sputtering (MS) ukuze kulinganiswe i-topography. Ngenxa yalokho, kwakheka ungqimba olungaphezulu oluqinile olumelana nokushisa, oluvimbela ukusakazeka komoyampilo endaweni enolaka.
"Sisebenzisa i-microscopy ye-electron yokudlulisela ukutadisha ukwakheka kwesendlalelo ngasinye, sithole imiphumela emibili yokuzivikela: ukwanda komthamo wokuthwala umthwalo ngenxa yongqimba lokuqala lwe-VESA nokulungiswa kweziphambeko ngokusetshenziswa kwezingqimba ezimbili ezilandelayo. Ngakho-ke, sithole i-coating yezendlalelo ezintathu, ukumelana kwayo nokugqwala kanye ne-high-temperature oxidation emithonjeni ye-liquid ne-gaseous iphindwe izikhathi eziphindwe kanye nengxenye kune-base coating. Ngeke kube ihaba ukusho ukuthi lo wumphumela obalulekile,” kusho uKiryukhantsev-Korneev.
Ososayensi balinganisela ukuthi ukunamathela kuzokwandisa impilo nokusebenza kwezingxenye zenjini ezibalulekile, amaphampu okudlulisa uphethiloli nezinye izinto ezingaphansi kokuguga nokugqwala.
I-Scientific and Educational Centre for Self-Propagating High-Temperature Synthesis (SHS Center), ephethwe nguProfesa Evgeny Levashov, ihlanganisa ososayensi abavela ku-NUST MISiS kanye ne-Institute of Structural Macrodynamics and Materials Science. AM Merzhanov Russian Academy of Sciences (ISMAN). Esikhathini esizayo esiseduze, ithimba locwaningo lihlela ukwandisa ukusetshenziswa kwesu elihlanganisiwe lokuthuthukisa ama-alloys amelana nokushisa e-titanium ne-nickel embonini yezindiza.