Lutetium oxideabu ne mai ban sha'awa mai ban sha'awa saboda tsananin zafinsa, juriyar lalata, da ƙarancin ƙarfin phonon. Bugu da ƙari, saboda yanayin da ya dace, babu wani canji na lokaci a ƙasa da ma'anar narkewa, da kuma juriya mai girma, yana taka muhimmiyar rawa a cikin kayan haɓakawa, kayan magnetic, gilashin gani, Laser, Electronics, luminescence, superconductivity, da high-energy radiation. ganowa. Idan aka kwatanta da sifofin kayan gargajiya,lutium oxidefiber kayan nuna abũbuwan amfãni kamar matsananci-karfi sassauci, mafi girma Laser lalacewa kofa, da kuma fadi watsa bandwidth. Suna da fa'idodin aikace-aikace masu fa'ida a cikin fagagen lasers masu ƙarfi da kuma kayan tsarin zafin jiki. Duk da haka, diamita na tsawolutium oxidefibers da aka samu ta hanyoyin gargajiya sau da yawa ya fi girma (> 75 μm) Sassaucin yana da ƙarancin ƙarancin ƙarfi, kuma ba a sami rahotannin babban aiki ba.lutium oxideci gaba da zaruruwa. Don haka, Farfesa Zhu Luyi da wasu daga Jami'ar Shandong suka yi amfani da suLutiumdauke da kwayoyin polymers (PALu) a matsayin precursors, hade tare da bushe kadi da kuma m zafi magani matakai, don karya ta cikin kwalban shirya high-ƙarfi da lafiya-diamita m lutium oxide ci gaba da zaruruwa, da kuma cimma controllable shiri na high-yi aiki.lutium oxideci gaba da zaruruwa.
Hoto 1 Busassun tsarin jujjuyawar ci gabalutium oxidezaruruwa
Wannan aikin yana mai da hankali kan lalacewar tsarin filaye na precursor yayin aikin yumbu. An fara daga ƙa'idar sigar ɓarkewar farko, ana ba da shawarar sabuwar hanyar da za ta taimaka ma matsa lamba don gyara tururin ruwa. Ta hanyar daidaita zafin jiki na pretreatment don cire kwayoyin halitta a cikin nau'i na kwayoyin halitta, lalacewar tsarin fiber a lokacin aikin yumbura yana da matukar damuwa, don haka tabbatar da ci gaba da ci gaba.lutium oxidezaruruwa. Nuna kyawawan kaddarorin inji. Bincike ya gano cewa a cikin ƙananan zafin jiki kafin magani, masu haɓakawa sun fi dacewa su fuskanci halayen hydrolysis, suna haifar da wrinkles a kan zaruruwa, wanda ke haifar da ƙarin fashewa a saman filayen yumbura da kuma pulverization kai tsaye a matakin macro; Mafi girman zafin jiki kafin magani zai haifar da precursor zuwa crystallize kai tsayelutium oxide, haifar da m fiber tsarin, sakamakon mafi girma fiber brittleness da guntu tsawon; Bayan pre-jiyya a 145 ℃, da fiber tsarin ne m da kuma surface ne in mun gwada da santsi. Bayan high-zazzabi magani magani, wani macroscopic kusan m ci gabalutium oxidefiber mai diamita na kusan 40 an samu nasarar samun μ M.
Hoto 2 Hotunan gani da hotunan SEM na filayen da aka riga aka tsara. Yanayin zafin jiki: (a, d, g) 135 ℃, (b, e, h) 145 ℃, (c, f, i) 155 ℃
Hoto na 3 Hoton gani na ci gabalutium oxidezaruruwa bayan yumbu magani. Yanayin zafin jiki: (a) 135 ℃, (b) 145 ℃
Hoto 4: (a) XRD bakan, (b) Hotunan microscope na gani, (c) kwanciyar hankali na thermal da microstructure na ci gabalutium oxidezaruruwa bayan high-zazzabi magani. Zafin maganin zafi: (d, g) 1100 ℃, (e, h) 1200 ℃, (f, i) 1300 ℃
Bugu da ƙari, wannan aikin yana ba da rahoto a karo na farko da ƙarfin ƙarfi, na roba, sassauci, da juriya na zafin jiki na ci gaba.lutium oxidezaruruwa. Ƙarfin jigon filament guda ɗaya shine 345.33-373.23 MPa, modulus na roba shine 27.71-31.55 GPa, kuma radius na ƙarshe shine 3.5-4.5 mm. Ko da bayan zafi magani a 1300 ℃, babu wani gagarumin raguwa a cikin inji Properties na zaruruwa, wanda cikakken tabbatar da cewa zazzabi juriya na ci gaba.lutium oxidezaruruwa shirya a cikin wannan aikin ba kasa da 1300 ℃.
Hoto 5 Kayan aikin injiniya na ci gabalutium oxidezaruruwa. (a) Kwangilar damuwa, (b) Ƙarfin ɗaure, (c) modulus na roba, (df) radius na ƙarshe. Zafin maganin zafi: (d) 1100 ℃, (e) 1200 ℃, (f) 1300 ℃
Wannan aikin ba kawai inganta aikace-aikace da kuma ci gaban dalutium oxidea high-zazzabi tsarin kayan, high-makamashi Laser, da kuma sauran filayen, amma kuma samar da sabon ra'ayoyi ga shiri na high-yi oxide ci gaba da zaruruwa.
Lokacin aikawa: Nuwamba-09-2023