I-Lutetium oxideiyinto ethembisayo ephikisayo ngenxa yokumelana kwayo nezinga lokushisa eliphezulu, ukumelana nokugqwala, namandla aphansi ephonon. Ngaphezu kwalokho, ngenxa yemvelo yayo efanayo, akukho ukuguquka kwesigaba ngaphansi kwendawo encibilikayo, nokubekezelelana okuphezulu kwesakhiwo, idlala indima ebalulekile ezintweni ezithinta amandla, izinto ezibonakalayo, ingilazi ebonakalayo, i-laser, i-electronics, i-luminescence, i-superconductivity, kanye nemisebe enamandla kakhulu. ukutholwa. Uma kuqhathaniswa namafomu ezinto zendabuko,i-lutetium oxideizinto zefiber zibonisa izinzuzo ezinjengokuguquguquka okunamandla kakhulu, umkhawulo womonakalo we-laser ophezulu, kanye nomkhawulokudonsa obanzi wokudlulisela. Banamathemba abanzi okusebenza emikhakheni yamalaser anamandla amakhulu kanye nezinto zokwakha ezisezingeni eliphezulu lokushisa. Nokho, ububanzi of esidei-lutetium oxideimicu etholwe ngezindlela zendabuko ivamise ukuba mikhudlwana (>75 μ m) Ukuvumelana nezimo kubi ngokuqhathaniswa, futhi akuzange kube nemibiko yokusebenza okuphezulu.i-lutetium oxideimicu eqhubekayo. Ngalesi sizathu, uSolwazi Zhu Luyi nabanye baseShandong University basebenzisei-lutetiumequkethe ama-organic polymers (PALu) njengama-precursors, ahlanganiswe nokuphotha okomile kanye nezinqubo zokwelashwa kokushisa okwalandela, ukuze kubhodlozwe ibhodlela lokulungiselela imicu eqhubekayo ye-lutetium oxide eguquguqukayo enobubanzi obuphezulu, futhi kuzuzwe ukulungiswa okulawulwayo kokusebenza okuphezulu.i-lutetium oxideimicu eqhubekayo.
Umfanekiso 1 Inqubo yokuphotha eyomile eqhubekayoi-lutetium oxideimicu
Lo msebenzi ugxile ekulimaleni kwesakhiwo semicu ye-precursor ngesikhathi senqubo ye-ceramic. Kusukela ekulawulweni kwefomu lokubola izandulela, kuhlongozwa indlela entsha yokwehliswa komhwamuko wamanzi okusizwa ukucindezela ngaphambili. Ngokulungisa izinga lokushisa langaphambi kokwelashwa ukuze kukhishwe ama-ligands e-organic ngendlela yama-molecule, ukulimala kwesakhiwo se-fiber ngesikhathi senqubo ye-ceramic kugwenywa kakhulu, ngaleyo ndlela kuqinisekiswe ukuqhubekai-lutetium oxideimicu. Ibonisa izakhiwo ezinhle kakhulu zemishini. Ucwaningo luthole ukuthi emazingeni okushisa aphansi angaphambi kokwelashwa, izandulela zingase zibhekane nokusabela kwe-hydrolysis, okubangela imibimbi engaphezulu emicu, okuholela ekuqhekekeni okwengeziwe ebusweni bemicu ye-ceramic kanye nokupondwa okuqondile ezingeni le-macro; Izinga lokushisa langaphambi kokwelashwa eliphakeme lizokwenza ukuthi isandulela sikhanye ngokuqondilei-lutetium oxide, okubangela ukwakheka kwe-fiber engalingani, okuholela ekuqineni okukhulu kwe-fiber nobude obufushane; Ngemuva kokwelashwa kwangaphambili ku-145 ℃, isakhiwo se-fiber siminyene futhi ingaphezulu libushelelezi. Ngemuva kokwelashwa kokushisa okuphezulu, i-macroscopic cishe esobala eqhubekayoi-lutetium oxidei-fiber enobubanzi obungaba ngu-40 itholwe ngempumelelo μ M.
Umfanekiso 2 Izithombe ze-Optical nezithombe ze-SEM zamafayibha angaphambili asetshenzwe ngaphambili. Izinga lokushisa ngaphambi kokwelashwa: (a, d, g) 135 ℃, (b, e, h) 145 ℃, (c, f, i) 155 ℃
Umfanekiso 3 Isithombe esibonakalayo sokuqhubekayoi-lutetium oxideimicu ngemuva kokwelashwa kwe-ceramic. Izinga lokushisa ngaphambi kokwelashwa: (a) 135 ℃, (b) 145 ℃
Umfanekiso 4: (a) I-XRD spectrum, (b) izithombe ze-optical microscope, (c) ukuqina kwe-thermal kanye ne-microstructure yokuqhubekayoi-lutetium oxideimicu ngemva kokwelashwa okunokushisa okuphezulu. Izinga lokushisa lokwelapha ukushisa: (d, g) 1100 ℃, (e, h) 1200 ℃, (f, i) 1300 ℃
Ngaphezu kwalokho, lo msebenzi ubika ngokokuqala ngqa amandla aqinile, i-elastic modulus, ukuguquguquka, nokumelana nezinga lokushisa okuqhubekayo.i-lutetium oxideimicu. Amandla okuqina komcu owodwa ngu-345.33-373.23 MPa, i-elastic modulus ingu-27.71-31.55 GPa, kanti i-curvature radius yokugcina ingu-3.5-4.5 mm. Ngisho nangemva kokwelashwa okushisa ku-1300 ℃, kwakungekho ukwehla okuphawulekayo kwezakhiwo zemishini yezintambo, okufakazela ngokugcwele ukuthi ukumelana nezinga lokushisa okuqhubekayo.i-lutetium oxideimicu elungiselelwe kulo msebenzi ayikho ngaphansi kuka-1300 ℃.
Umfanekiso 5 Izakhiwo zemishini zokuqhubekayoi-lutetium oxideimicu. (a) Ijika le-stress-strain, (b) amandla aqinile, (c) i-elastic modulus, (df) irediyasi yokugcina yokugoba. Izinga lokushisa lokushisa: (d) 1100 ℃, (e) 1200 ℃, (f) 1300 ℃
Lo msebenzi awugcini nje ngokukhuthaza ukusetshenziswa nokuthuthukiswa kwei-lutetium oxideezintweni zokwakha ezinokushisa okuphezulu, ama-laser anamandla amakhulu, neminye imikhakha, kodwa futhi inikeza imibono emisha yokulungiselela imicu eqhubekayo ye-oxide esebenza kahle kakhulu.
Isikhathi sokuthumela: Nov-09-2023