I-Lutetium oxideyinto ethembisayo yokumelana nobushushu obuphezulu, ukumelana nokugqwala, kunye namandla aphantsi ephonon.Ukongeza, ngenxa yobume bayo obufanayo, akukho tshintsho lwesigaba esingaphantsi kwendawo yokunyibilika, kunye nokunyamezelana okuphezulu kwesakhiwo, idlala indima ebalulekileyo kwizixhobo ze-catalytic, imathiriyeli yamagnetic, iglasi yokubona, i-laser, i-elektroniki, i-luminescence, i-superconductivity, kunye nemitha ephezulu yamandla. ukubhaqwa.Xa kuthelekiswa neefom zemathiriyeli zemveli,i-lutetium oxideimathiriyeli yefayibha ibonisa iingenelo ezinje ngokuguquguquka okugqithisileyo, ukonakaliswa kwelaser ephezulu, kunye nebhanwidth ebanzi yothumelo.Banemibono ebanzi yokusetyenziswa kwiinkalo ze-laser zamandla aphezulu kunye nezixhobo eziphezulu zokushisa.Nangona kunjalo, ubukhulu bexesha elidei-lutetium oxideiintsinga ezifunyenwe ngeendlela zemveli zihlala zikhulu (> 75 μ m) Ukuguquguquka kumbi kakhulu, kwaye akuzange kubekho ngxelo yokusebenza okuphezulu.i-lutetium oxideimicu eqhubekayo.Ngesi sizathu, uNjingalwazi uZhu Luyi kunye nabanye abavela kwiYunivesithi yaseShandong basebenziseilutetiumequlethe i-organic polymers (PALu) njenge-precursors, edityaniswe nokujikeleza okomileyo kunye neenkqubo zokunyanga ubushushu obulandelayo, ukutyhutyha ibhotile yokulungiselela i-lutetium oxide eguquguqukayo kunye ne-fine-diameter eguquguqukayo eqhubekayo yemicu ye-lutetium oxide, kunye nokufezekisa ukulungiswa okulawulwayo kokusebenza okuphezulu.i-lutetium oxideimicu eqhubekayo.
Umzobo 1 Inkqubo yokujikeleza eyomileyo eqhubekayoi-lutetium oxideimicu
Lo msebenzi ugxile kumonakalo wesakhiwo semicu ye-precursor ngexesha lenkqubo ye-ceramic.Ukuqala kulawulo lwefom ye-precursor decomposition, indlela entsha yoxinzelelo incedise ukunyangwa komphunga wamanzi kwangaphambili.Ngokulungelelanisa ukushisa kwangaphambili ukususa i-ligands yezinto eziphilayo ngendlela yeemolekyuli, umonakalo kwisakhiwo sefiber ngexesha lenkqubo ye-ceramic igwenywe kakhulu, ngaloo ndlela iqinisekisa ukuqhubekai-lutetium oxideimicu.Ukubonisa iimpawu ezigqwesileyo zoomatshini.Uphando lufumene ukuba kumaqondo okushisa angaphantsi kwangaphambi konyango, abandulelayo banokuthi bafumane iimpendulo ze-hydrolysis, ezibangela imibimbi yomhlaba kwimicu, ekhokelela ekuqhekekeni okungaphezulu kwimicu ye-ceramic kunye ne-pulverization ngqo kwinqanaba le-macro;Ubushushu obuphezulu bonyango lwangaphambili luya kubangela ukuba i-precursor ikhanye ngokuthe ngqoi-lutetium oxide, ebangela ukwakheka kwefiber engalinganiyo, okukhokelela kwi-fiber brittleness enkulu kunye nobude obufutshane;Emva konyango lwangaphambili kwi-145 ℃, ubume befiber buxinene kwaye umphezulu uthambile.Emva konyango lobushushu obuphezulu, i-macroscopic iphantse ibonakale elubala ngokuqhubekayoi-lutetium oxideifayibha enobubanzi obumalunga nama-40 ifunyenwe ngempumelelo μ M.
Umzobo we-2 Iifoto ze-Optical kunye nemifanekiso ye-SEM ye-fibers precursor fibers.Ubushushu bonyango: (a, d, g) 135 ℃, (b, e, h) 145 ℃, (c, f, i) 155 ℃
Umzobo 3 Ifoto ye-Optical eqhubekayoi-lutetium oxideiifibers emva konyango lweceramic.Ubushushu bonyango: (a) 135 ℃, (b) 145 ℃
Umzobo 4: (a) I-XRD spectrum, (b) iifoto zemicroscope ebonakalayo, (c) ukuzinza kwe-thermal kunye ne-microstructure eqhubekayoi-lutetium oxideiifibers emva konyango lobushushu obuphezulu.Ubushushu bonyango lobushushu: (d, g) 1100 ℃, (e, h) 1200 ℃, (f, i) 1300 ℃
Ukongeza, lo msebenzi unika ingxelo okokuqala amandla okuqina, imodyuli enwebekayo, ukuguquguquka, kunye nokumelana nobushushu obuqhubekayo.i-lutetium oxideimicu.I-filament eyodwa yamandla e-tensile yi-345.33-373.23 MPa, i-modulus elastic yi-27.71-31.55 GPa, kwaye i-radius yokugqibela ye-curvature yi-3.5-4.5 mm.Nasemva kokunyangwa kobushushu kwi-1300 ℃, akukho kuncipha okubonakalayo kwiipropathi zomatshini zemicu, ebonisa ngokupheleleyo ukuba ukuxhathisa ubushushu obuqhubekayo.i-lutetium oxideiintsinga ezilungiselelwe kulo msebenzi azikho ngaphantsi kwe-1300 ℃.
Umzobo 5 Iipropati zeMechanical eziqhubekayoi-lutetium oxideimicu.(a) Uxinzelelo lwegophe, (b) ukomelela, (c) imodyuli elastiki, (df) ireyidi egobileyo yokugqibela.Ubushushu bonyango lobushushu: (d) 1100 ℃, (e) 1200 ℃, (f) 1300 ℃
Lo msebenzi awukhuthazi kuphela ukusetyenziswa kunye nophuhliso lwei-lutetium oxidekwizinto zokwakha ezinobushushu obuphezulu, iilaser ezinamandla kakhulu, kunye nezinye iindawo, kodwa zibonelela ngezimvo ezintsha zolungiselelo lwemicu ephezulu yokusebenza kweoxide eqhubekayo.
Ixesha lokuposa: Nov-09-2023