Masu bincike a Jami'ar Kyoto sun gano cewa molybdenum silicides na iya inganta ingantaccen injin turbine a cikin tsarin konewa mai tsananin zafi.

Turbin iskar gas su ne injina da ke samar da wutar lantarki a tashoshin wutar lantarki. Yanayin aiki na tsarin konewansu na iya wuce 1600 ° C. Tushen turbine na tushen nickel da ake amfani da su a cikin waɗannan tsarin suna narkewa a yanayin zafi 200 ° C ƙasa kuma don haka yana buƙatar sanyaya iska don aiki. Gilashin turbine da aka yi daga kayan tare da yanayin zafi mai girma zai buƙaci ƙarancin amfani da mai kuma yana haifar da ƙarancin hayaƙin CO2.

Masana kimiyyar kayan aiki a Jami'ar Kyoto ta Japan sun binciki kaddarorin abubuwa daban-daban na molybdenum silicides, tare da kuma ba tare da ƙarin abubuwan da suka dace ba.

Binciken da aka yi a baya ya nuna cewa ƙirƙira nau'ikan siliki na molybdenum ta hanyar latsawa da dumama fodansu - wanda aka sani da ƙarfe foda - sun inganta juriya ga fashewa a yanayin yanayin yanayi amma sun saukar da ƙarfin zafin su, saboda haɓakar yadudduka na silicon dioxide a cikin kayan.

Tawagar Jami'ar Kyoto ta ƙirƙira kayan tushen silicide ɗin su na molybdenum ta hanyar amfani da hanyar da aka sani da “ƙarfafa kai tsaye,” wanda narkakken ƙarfe yana ci gaba da ƙarfi a wata hanya.

Ƙungiyar ta gano cewa za a iya samar da wani abu mai kama da juna ta hanyar sarrafa ƙimar ƙarfafawar molybdenum silicide-based composite a lokacin ƙirƙira kuma ta hanyar daidaita adadin abubuwan da aka ƙara a cikin mahaɗin.

Sakamakon abu yana fara lalacewa ta hanyar filastik a ƙarƙashin matsawar uniaxial sama da 1000 ° C. Hakanan, ƙarfin zafin kayan yana ƙaruwa ta hanyar gyaran microstructure. Ƙara tantalum zuwa ga hadawa ya fi tasiri fiye da ƙara vanadium, niobium ko tungsten don inganta ƙarfin kayan a yanayin zafi a kusa da 1400 ° C. Abubuwan haɗin gwiwar da ƙungiyar jami'ar Kyoto suka ƙirƙira sun fi ƙarfin zafi fiye da na zamani da ake amfani da su na nickel da kuma kayan aikin da aka ƙera kwanan nan masu zafin jiki, masu binciken sun ba da rahoton a cikin binciken su da aka buga a mujallar Kimiyya da Fasaha na Advanced Materials.