Bafuputsi ba Univesithing ea Kyoto ba fumane hore li-silicides tsa molybdenum li ka ntlafatsa bokhoni ba li-blade tsa turbine lits'ebetsong tse tukang tsa mocheso o phahameng haholo.
Li-turbine tsa khase ke lienjineri tse fehlang motlakase lifemeng tsa motlakase. Lithempereichara tsa ts'ebetso ea lisebelisoa tsa tsona tsa ho tuka li ka feta 1600 ° C. Maqhubu a turbine a thehiloeng ho nickel a sebelisoang lits'ebetsong tsena a qhibiliha mochesong oa 200 °C ka tlase mme kahoo a hloka hore moea o pholileng o sebetse. Li-blade tsa turbine tse entsoeng ka thepa e nang le mocheso o phahameng oa ho qhibiliha li ka hloka tšebeliso e fokolang ea mafura 'me li tla lebisa ho theola likhase tsa CO2.
Bo-rasaense ba lisebelisoa Univesithing ea Kyoto ea Japane ba ile ba batlisisa litšobotsi tsa mefuta e fapaneng ea li-silicides tsa molybdenum, tse nang le likarolo tse ling tsa ternary le ntle le tsona.
Liphuputso tse fetileng li bontšitse hore ho etsa metsoako ea molybdenum silicide-based composite ka ho hatella le ho futhumatsa phofo ea bona - e tsejoang e le phofo ea metallurgy - e ntlafalitse ho hanyetsa ha bona ho fracturing ka mocheso oa mocheso empa ho theola matla a bona a mocheso o phahameng, ka lebaka la nts'etsopele ea likarolo tsa silicon dioxide ka har'a thepa.
Sehlopha sa Univesithi ea Kyoto se thehile lisebelisoa tsa bona tse thehiloeng molybdenum silicide ka mokhoa o tsejoang e le "directional solidification," moo tšepe e qhibilihisitsoeng e ntseng e tiea butle-butle ka lehlakoreng le itseng.
Sehlopha se fumane hore ho ka etsoa thepa ea homogeneous ka ho laola sekhahla sa ho tiea ha motsoako oa molybdenum silicide nakong ea ho etsoa le ka ho lokisa palo ea ternary element e kentsoeng ho motsoako.
Lintho tse hlahisoang li qala ho senyeha ka polasetiki tlas'a khatello ea uniaxial ka holimo ho 1000 °C. Hape, matla a mocheso o phahameng oa thepa a eketseha ka ntlafatso ea microstructure. Ho eketsa tantalum ho motsoako ho sebetsa ho feta ho eketsa vanadium, niobium kapa tungsten bakeng sa ho ntlafatsa matla a thepa ka mocheso o ka bang 1400 °C. Li-alloys tse entsoeng ke sehlopha sa Univesithi ea Kyoto li matla haholo ka mocheso o phahameng ho feta li-superalloy tsa morao-rao tse thehiloeng ho nickel hammoho le lisebelisoa tsa morao-rao tse entsoeng ka ultrahigh-themperature, bafuputsi ba tlaleha thutong ea bona e hatisitsoeng koranteng ea Science and Technology of Advanced Materials.
Nako ea poso: Dec-26-2019