Lutetium oxidechinhu chinovimbisa refractory nekuda kwekunyanya kupisa kwekushisa, corrosion resistance, uye yakaderera phonon simba.Pamusoro pezvo, nekuda kwehunhu hwayo hwakafanana, hapana shanduko pazasi peinonyungudika, uye kushivirira kwepamusoro, inoita basa rakakosha muzvinhu zvinokonzeresa, magineti zvinhu, girazi remaziso, laser, zvemagetsi, luminescence, superconductivity, uye yakakwirira-simba mwaranzi. kuonekwa.Kuenzaniswa nemhando dzechinyakare dzezvinhu,lutetium oxidefiber zvinhu zvinoratidzira zvakanakira senge yekupedzisira-yakasimba kuchinjika, yakakwira laser kukuvara kwechikumbaridzo, uye yakafara yekufambisa bandwidth.Ivo vane tarisiro yakafara yekushandiswa muminda yeakakwira-simba lasers uye yakakwirira-tembiricha zvimiro zvezvinhu.Zvisinei, dhayamita refulutetium oxidefaibha dzinowanikwa nenzira dzechinyakare dzinowanzova dzakakura (> 75 μ m) Kuchinjika kunenge kwakashata, uye hakuna kumbove nemishumo yekushanda kwepamusoro.lutetium oxideinoenderera mberi fibers.Nechikonzero ichi, Muzvinafundo Zhu Luyi nevamwe vekuShandong University vakashandisalutetiumine organic polymers (PALu) sema precursors, akasanganiswa nekuoma kutenderera uye anotevera ekupisa kupisa maitiro, kupaza mukati mebhodhoro rekugadzirira yakakwirira-simba uye yakanaka-dhayamita inochinjika lutetium oxide inoenderera fibers, uye kuwana inodzoreka kugadzirira kwepamusoro-kuita.lutetium oxideinoenderera mberi fibers.
Mufananidzo 1 Dry spinning process yekuenderera mberilutetium oxidefibers
Iri basa rinotarisa pakukuvadzwa kwechimiro che precursor fibers panguva yeceramic process.Kutanga kubva pakudzorwa kwechimiro cheprecursor decomposition, nzira itsva yekumanikidza yakabatsira mvura vapor pretreatment inokurudzirwa.Nekugadzirisa tembiricha yepamberi kuti ibvise organic ligands muchimiro chemamorekuru, kukuvadzwa kweiyo fiber chimiro panguva yeceramic process kunodzivirirwa zvakanyanya, nekudaro kuve nechokwadi kuenderera kwe.lutetium oxidefibers.Kuratidzira zvakanakisa zvemakanika zvinhu.Tsvagiridzo yakawana kuti pakudzika kusati kwaitwa tembiricha, precursors inowanzoita hydrolysis reactions, zvichikonzera kuunyana kwepamusoro pamafibers, zvichiita kuti pave nekutsemuka kwakawanda pamusoro pepamusoro peceramic fibers uye yakananga pulverization pane macro level;Iyo yepamusoro pre-kurapwa tembiricha ichaita kuti precursor inyatso penya mukatilutetium oxide, zvichikonzera kusaenzana kwefiber chimiro, zvichikonzera hukuru hwefiber brittleness uye hurefu hupfupi;Mushure mekutanga kurapwa pa145 ℃, iyo fiber chimiro chakaonda uye pamusoro pacho pari kutsetseka.Mushure mekupisa kwekupisa kwekupisa, macroscopic anenge akajeka anoendereralutetium oxidefaibha ine dhayamita ingangoita makumi mana yakabudirira kuwanikwa μ M.
Mufananidzo 2 Optical photos uye SEM mifananidzo ye preprocessed precursor fibers.Pretreatment tembiricha: (a, d, g) 135 ℃, (b, e, h) 145 ℃, (c, f, i) 155 ℃
Mufananidzo 3 Optical mufananidzo wekuendereralutetium oxidefibers mushure mekurapa ceramic.Pretreatment tembiricha: (a) 135 ℃, (b) 145 ℃
Mufananidzo 4: (a) XRD spectrum, (b) optical microscope mapikicha, (c) kugadzikana kwekupisa uye microstructure yekuenderera mberilutetium oxidefibers mushure mekupisa kwekupisa.Kupisa kupisa tembiricha: (d, g) 1100 ℃, (e, h) 1200 ℃, (f, i) 1300 ℃
Uye zvakare, basa iri rinoshuma kekutanga simba rekusimba, elastic modulus, kuchinjika, uye tembiricha kuramba kwekuenderera.lutetium oxidefibers.Iyo imwechete filament tensile simba ndeye 345.33-373.23 MPa, iyo elastic modulus ndeye 27.71-31.55 GPa, uye yekupedzisira curvature radius ndeye 3.5-4.5 mm.Kunyangwe mushure mekurapwa kwekupisa pa1300 ℃, pakanga pasina kuderera kwakanyanya mumagetsi emagetsi efibers, izvo zvinonyatsoratidza kuti tembiricha kuramba kweinoenderera.lutetium oxidefaibha dzakagadzirirwa mubasa iri hadzisi pasi pe1300 ℃.
Mufananidzo 5 Mechanical properties yekuenderera mberilutetium oxidefibers.(a) Stress-strain curve, (b) tensile simba, (c) elastic modulus, (df) yekupedzisira curvature radius.Kupisa kupisa tembiricha: (d) 1100 ℃, (e) 1200 ℃, (f) 1300 ℃
Iri basa haringosimudziri mashandisirwo nekuvandudzwa kwelutetium oxidemune yakakwirira-tembiricha zvimiro zvemidziyo, yakakwirira-simba lasers, uye mamwe minda, asi zvakare inopa mazano matsva ekugadzirira kwepamusoro-kuita oxide inoenderera fibers.
Nguva yekutumira: Nov-09-2023