Muva nje, i-Institute of Mechanics ye-Chinese Academy of Sciences ibembisana nabaphenyi ekhaya nakwamanye amazwe ukwenza inqubekela phambili entsha ekugugeni kwengilazi, kanti okokuqala ngqa ukwakheka kwengilazi okujwayelekile kwengilazi evamile yensimbi endaweni evamile yensimbi. Imiphumela ehlobene nayo inesihloko se-Ultrafast ukugcwala ngokweqile kwezingilazi zensimbi ngokuncipha kwe-shock, kushicilelwe kwi-Science inqubekela phambili (i-Science inqubekela phambili 5: Eaaw6249 (2019)).
I-Metastable Glass Material inomkhuba wokuguga okuzenzakalelayo esimweni se-Thermodynamic Equilibrium, futhi ngasikhathi sinye, ihambisana nokuwohloka kwezinto ezibonakalayo. Kodwa-ke, ngokufakwa kwamandla angaphandle, impahla yengilazi egugile ingavuselela ukwakheka (ukuvuselelwa). Le nqubo yokulwa nokuguga ngakolunye uhlangothi inomthelela ekuqondeni okuyisisekelo kokuziphatha okuyinkimbinkimbi kwengilazi, ngakolunye uhlangothi kuyasiza ekusetshenzisweni kobunjiniyela bezinto zokwakha ingilazi. Eminyakeni yamuva nje, ngezinto zokwenziwa zengilazi zensimbi enamathemba okusebenza abanzi, uchungechunge lwezindlela zokuvuselelwa kabusha ezisuselwa ekuguqukeni okungaqaphile kuhlongozwe ukuze kulawulwe ngempumelelo izakhiwo zemishini nezesiko kwezinto zokwakha. Kodwa-ke, zonke izindlela zangaphambilini zokuvuselela zisebenza emazingeni aphansi okucindezelwa futhi zidinga isilinganiso esenele sesikhathi, ngakho-ke zinomkhawulo omkhulu.
Abaphenyi ngokususelwa kubuchwepheshe be-Plate Plate Fourcting Recork yedivayisi yesibhamu ekhanyayo yegesi, babona ukuthi ingilazi ejwayelekile ye-zirconisium-based metallic iphinde yavuthiswa ngezinga eliphakeme kuma-nanosecond acishe abe ngu-365 we-nanosecond (isigidi esisodwa sesikhathi esidingayo ukuze umuntu aqede iso). I-Enthalpy ihluleke kakhulu. Inselelo yalobu buchwepheshe ukusebenzisa ukulayisha okuningana kwe-GPA-Level eyodwa-Izinga eli-pulse eyodwa kanye nokulayisha okuzenzakalelayo ku-metallic glass, ukuze kugwenywe ukwehluleka okunamandla kwezinto ezifana namabhendi we-shear kanye nokuchitheka; Ngasikhathi sinye, ngokulawula ijubane lomthelela weflaya, insimbi ukuvumelanisa ngokushesha kwengilazi "kuyabalwa" emazingeni ahlukene.
Abaphenyi baqhube isifundo esiphelele kwinqubo yokuvuselela okusheshayo kwe-Ultra-okusheshayo ye-Metallic Glass kusuka ezinhlotsheni ze-thermodynamics, ukwakheka kwesilinganiso esiningi kanye ne-Phonon Dynamics "BOSE DYNAMICS" BOSE DYNAMICS ". IVolumu yamahhala edonswe yimodi ye- "Shear Tury Tranition". Ngokusekelwe kulo mshini womzimba, inombolo enobukhulu be-deborah ichazwa, echaza ukuthi kungenzeka kube isikhathi sokuvuselelwa kwe-Ultra-okusheshayo kwengilazi yensimbi. Lo msebenzi ukhuphule isilinganiso sesikhathi sokuvuselelwa kwezakhiwo ze-Metallic Glass okungenani ama-oda ayi-10 ngobukhulu, wandise izinkambu zohlelo lokusebenza zalolu hlobo lwezinto ezibonakalayo, kanye nokujula kokuqonda kwabantu kwengilazi.
Isikhathi sePosi: Dec-06-2021