Vatsvagiri vepaKyoto University vakawana kuti molybdenum silicides inogona kuvandudza kushanda kweturbine blades mune ekupedzisira-tembiricha yekupisa masisitimu.

Maturbine egasi ndiwo injini dzinogadzira magetsi mumagetsi emagetsi. Matembiricha ekushanda emasisitimu avo ekupisa anogona kudarika 1600 ° C. Iyo nickel-based turbine blades inoshandiswa mumasisitimu aya inonyunguduka patembiricha 200 °C yakaderera nekudaro inoda kutonhora kwemhepo kuti ishande. Turbine blades akagadzirwa nezvinhu zvine tembiricha yekunyungudika yakakwira zvingada kushomeka kwemafuta uye zvinotungamira kudzikira CO2 kubuda.

Materials masayendisiti paYunivhesiti yeKyoto yekuJapan akaferefeta zvimiro zveakasiyana maumbirwo emolybdenum silicides, aine uye asina mamwe ternary elements.

Ongororo yapfuura yakaratidza kuti kugadzira molybdenum silicide-based composites nekutsikirira nekudziisa hupfu hwawo - hunozivikanwa sepoda metallurgy - kwakavandudza kusada kutsemuka pamhepo inodziya asi yakadzikisa simba rayo rekupisa, nekuda kwekugadzirwa kwesilicon dioxide mukati mechinhu.

Chikwata cheKyoto University vakagadzira yavo molybdenum silicide-based materials vachishandisa nzira inozivikanwa se "directional solidification," umo simbi yakanyungudutswa inoramba ichiomesa mune imwe nzira.

Chikwata chakaona kuti homogeneous material inogona kuumbwa nekudzora chiyero chekusimba chemolybdenum silicide-based composite panguva yekugadzira uye nekugadzirisa huwandu hweiyo ternary element yakawedzerwa kune inoumbwa.

Izvo zvinokonzeresa zvinotanga kutsveyama mupurasitiki pasi pekumanikidzwa kweuniaxial pamusoro pe1000 °C. Zvakare, iyo yemhando yepamusoro-tembiricha simba inowedzera kuburikidza ne microstructure kunatswa. Kuwedzera tantalum kune inoumbwa kunoshanda zvakanyanya pane kuwedzera vanadium, niobium kana tungsten yekuvandudza kusimba kwechinhu pakupisa kunosvika 1400 °C. Iwo alloys akagadzirwa nechikwata cheKyoto University akasimba zvakanyanya pakudziya kwakanyanya kupfuura yemazuva ano nickel-based superalloys pamwe neachangobva kugadzirwa ultrahigh-temperature structural materials, vatsvakurudzi vanotaura muchidzidzo chavo chakabudiswa mumagazini Science and Technology of Advanced Materials.