Ka uhi ʻana

TEHRAN, 31 ʻAukake (MNA) - Ua hoʻomohala nā mea noiʻi mai ke Kulanui o Science and Technology MISiS (NUST MISiS) i kahi ʻenehana kūikawā no ka hoʻopili ʻana i nā pale pale i nā mea koʻikoʻi a me nā ʻāpana o ka ʻenehana hou.
ʻO nā kānaka ʻepekema mai ka Russian University MISIS (NUST MISIS) ʻōlelo ʻo ka originality o kā lākou ʻenehana aia i ka hoʻohui ʻana i nā pono o nā ʻano deposition ʻekolu e pili ana i nā loina kino like ʻole i hoʻokahi pōʻaiapuni ʻenehana. Ma ka hoʻohana ʻana i kēia mau ʻano, ua loaʻa iā lākou nā ʻāpana multi-layer me ke kūpaʻa wela kiʻekiʻe, ke kūpaʻa a me ke kūpaʻa corrosion, hōʻike ʻo Sputnik.
Wahi a ka poʻe noiʻi, ʻo ke ʻano kumu o ka hoʻopiʻi ʻana i hopena i ka hoʻomaikaʻi ʻana i ka 1.5-fold i ka pale ʻana i ka corrosion a me ka oxidation wela kiʻekiʻe i hoʻohālikelike ʻia i nā hopena i loaʻa. Ua paʻi ʻia kā lākou hopena ma ka International Journal of Ceramics.
"No ka manawa mua, ua loaʻa kahi uhi pale o kahi electrode e pili ana i ka chromium carbide a me kahi mea hoʻopaʻa NiAl (Cr3C2-NiAl) ma muli o ka hoʻokō ʻana o ka vacuum electrospark alloying (VES), pulsed cathode-arc evaporation (IPCAE) a me ka magnetron sputtering ( MS). ) hana ʻia ma kekahi mea. He microstructure haku mele ka uhi, e hiki ai ke hoʻohui i nā hopena maikaʻi o nā ala ʻekolu, "wahi a Philip, ke poʻo o ka Laboratory "Innatural Diagnostics of Structural Transformations" ma MISiS-ISMAN Scientific Center. ʻAʻole i hōʻike ʻia ka hoʻonaʻauao o Kiryukhantsev-Korneev.
Wahi a ia, ua mālama mua lākou i ka ʻili me VESA e hoʻoili i ka mea mai ka Cr3C2-NiAl ceramic electrode i ka substrate, e hōʻoia ana i ka ikaika adhesion kiʻekiʻe ma waena o ka uhi a me ka substrate.
I ka pae aʻe, i ka wā pulsed cathode-arc evaporation (PCIA), hoʻopiha nā ion mai ka cathode i nā hemahema i ka papa mua, e hoʻopaʻa ana i nā māwae a hana i kahi papa ʻoi aku ka ʻoi aku o ke ʻano me ka pale ʻana i ka corrosion kiʻekiʻe.
I ka pae hope loa, hoʻokumu ʻia ke kahe o nā mana e ka magnetron sputtering (MS) e pae i ka topography. ʻO ka hopena, ua hoʻokumu ʻia kahi papa luna wela wela, kahi e pale ai i ka hoʻolaha ʻana o ka oxygen mai kahi ʻano ʻino.
"Me ka hoʻohana ʻana i ka microscopy electron transmission e aʻo i ke ʻano o kēlā me kēia papa, ua ʻike mākou i ʻelua mau hopena pale: ka piʻi ʻana o ka hiki ke amo ma muli o ka papa mua o VESA a me ka hoʻoponopono ʻana i nā hemahema me ka hoʻohana ʻana i nā papa ʻelua e hiki mai ana. No laila, ua loaʻa iā mākou kahi ʻāpana ʻekolu-layer, ʻo ke kūʻē ʻana i ka corrosion a me ke kiʻekiʻe-mehana oxidation i loko o ka wai a me ke kinoea media he hoʻokahi a me ka hapalua manawa kiʻekiʻe ma mua o ka uhi kumu. ʻAʻole ia he mea hoʻonui i ka ʻōlelo ʻana he hopena koʻikoʻi kēia, "wahi a Kiryukhantsev-Korneev.
Manaʻo ka poʻe ʻepekema e hoʻonui ka uhi ʻana i ke ola a me ka hana o nā ʻāpana mīkini koʻikoʻi, nā paila hoʻoili wahie a me nā mea ʻē aʻe i pili i ka ʻaʻahu a me ka ʻino.
ʻO ka Scientific and Educational Center for Self-Propagating High-Temperature Synthesis (SHS Center), i alakaʻi ʻia e Professor Evgeny Levashov, hoʻohui i nā ʻepekema mai NUST MISiS a me ka Institute of Structural Macrodynamics and Materials Science. AM Merzhanov Russian Academy of Science (ISMAN). I ka wā e hiki mai ana, hoʻolālā ka hui noiʻi e hoʻonui i ka hoʻohana ʻana i ka ʻenehana i hui pū ʻia e hoʻomaikaʻi i nā alloys pale wela o ka titanium a me ka nickel no ka ʻoihana mokulele.