I-Yttria-Stabilized Zirconia Beads

Isingeniso Somkhiqizo

Umsebenzi wokugaya ofuna ukucoliseka kweleveli ye-nanometer, ukungcoliswa kwensimbi eyiziro ngokuphelele, kanye nokumelana nokugqokwa okuphezulu akukwazi ukusebenzisa ubuhlalu bengilazi noma i-alumina evamile. Idinga i-zirconia.

Ubuhlalu be-Yttria‑stabilized zirconia (YSZ) buyimidiya yokugaya yobumba esebenza kakhulu etholakala namuhla. Ngokuminyana kwangempela okungaba ngu-6.0 g/cm³, ubulukhuni be-Vickers obudlula u-1,300 HV, nokuqina kwe-Mohs okungu-9, bahlala phezulu kwephiramidi yemidiya yokugaya. Ngokungafani nobuhlalu be-zirconium silicate (okuvame ukubizwa ngokuthi "ubuhlalu be-zirconia obungama-65"), obusebenzisa izinhlelo zokusebenza ezizwelayo izindleko, ubuhlalu be-zirconia be-yttria-stabilized bucacisiwe lapho ubumsulwa bomkhiqizo bungeke bube sengozini futhi ukusebenza kahle kokugaya kufanele kukhuliswe.

Zisetshenziswa kuphi?

 

Ibhethri ye-lithium cathode nezinto ze-anode - i-lithium iron phosphate (LFP), i-nickel manganese cobalt (NMC), nama-solid-state electrolyte. Izitsha zobumba zikagesi - Ama-capacitor e-MLCC, i-piezoelectric ceramics, i-alumina ne-silicon nitride substrates. Opende abasezingeni eliphezulu, ama-coating ezimoto, noyinki wedijithali. I-Pharmaceuticals - I-API nano-grinding kanye nokuphazamiseka kwe-bio‑cell. Izimonyo nemibala yezinga lokudla lapho ukungcola kwensimbi kungavunyelwe.

 

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95% yttria‑zirconia ubuhlalu obuzinzile

ukuqeda ukungcoliswa kwensimbi ngokuphelele

 

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Ukukhiqizwa Okujwayelekile

Uphumelele isitifiketi se-ISO9001 futhi wathola izitifiketi ezifanele zelungelo lobunikazi.

 

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Amasevisi{0}Enziwe Ngezifiso Asezingeni eliphezulu

Azikho izixhumanisi ezimaphakathi, ezihlinzeka{0}}isevisi eyodwa yokumisa kusukela kumklamo, ukucubungula, ukuhlola isikhunta ukuya ekukhiqizeni ngobuningi.

Izici ezibalulekile

Izakhiwo ezine zibeka ubuhlalu be-zirconia obuzinzile be-yttria‑zinzile ngaphandle kwayo yonke eminye imidiya yokugaya.

Ukuqina okwedlulele. Mohs hardness 9, Vickers >1,300 HV. Lokhu kuwenza aqine njenge-alumina mayelana nokumelana nokuklwebheka, kodwa abe nokuqina okuphezulu kakhulu kokuphuka - okuvamise ukudlula u-8 MPa·m¹/². Inhlanganisela yokuqina nokuqina kusho ukuthi aziqhekeki ngaphansi kokugaya amandla aphezulu, ngisho noma zicubungula izinto eziqinile.

Ukuminyana okuphezulu kakhulu.Ukuminyana kwangempela cishe kokungu-6.0 g/cm³ (izigaba ze-rutile ne-tetragonal) ukuya ku-6.1 g/cm³ (isigaba se-monoclinic), kuye ngesizinzisi. Lokhu kungaphezu kokuphindwe kabili ukuminyana kobuhlalu bengilazi (~2.5 g/cm³) futhi cishe ngokuphindwe kathathu kokwe-yttrium‑stabilized zirconia kunikeza inzuzo yokuminyana engaphezu kokuphindwe kabili kwemidiya yengilazi kanye nokwenyuka okungu-60% kune-alumina (~3.6–3.9 g/cm³). Ukuminyana okuphezulu kusho ukungqubuzana ngakunye kudlulisa amandla e-kinetic engeziwe ezinhlayiyeni eziqondiwe - ukugaya okusheshayo, imiphumela emihle, izikhathi zomjikelezo ezimfushane.

Isilinganiso sokugqoka esiseduze-ziro.Ukulahlekelwa kokuzigqoka kungaphansi kuka-0.01% ngamahora angu-24, namazinga okugqoka aphansi njengengxenye eyodwa kuya kokukodwa kokuthathu kweminye imidiya yokusabalalisa, ngokusho kwedatha yomkhakha. Ingilazi nobuhlalu bensimbi buwohloka ngokushesha, bukhiphe ama-silicates noma insimbi emkhiqizweni. Ubuhlalu be-Zirconia abukho. Ekukhiqizweni kwezinto zebhethri, lokhu kuvimbela ukungcoliswa kwensimbi obekungehlisa ukusebenza kwe-electrochemical futhi kunciphise impilo yomjikelezo.

Ukungabi namakhemikhali okuphelele.I-zirconia ye-Yttria-stabilized ayisabelani nama-asidi, ama-alkali, izinyibilikisi, noma ama-slurries anamanzi. Ayiqukethe i-ayoni yamahhala, ayinazo izinsimbi ezingavuzeka, futhi ayinazo izinto ezikhipha imisebe. Ngokugaya i-API yezemithi, izimonyo, nezimibalabala zebanga lokudla, lokhu kuhlangabezana nezindinganiso eziphakeme zokulawula zokuhlanzeka nokuphepha.

Impahla, Isakhiwo kanye Nokukhiqiza

Ukwakheka kwezinto kanye ne-microstructure.Ubuhlalu be-zirconia be-Yttria‑stabilized zirconia buhlanganiswe ne-zirconium oxide (ZrO₂) iqiniswe ngo-3–5% yttrium oxide (Y₂O₃). Ukwakhiwa okujwayelekile: ZrO₂ 94.8–95.0%, Y₂O₃ 5.0–5.2%. I-yttria iqinisa isigaba sekristalu ye-tetragonal kuthempelesha yegumbi, enesibopho sokuqina kokuphuka kwempahla. I-microstructure inhle-grained, iminyene, futhi ayinazo izimbotshana, ezinosayizi wokusanhlamvu ngokuvamile abangaphansi kuka-0.5 μm.

Inqubo yokukhiqiza.Inqubo iqala nge-high-purity zirconium oxide powder, elinganiselwe ngokunembile ne-yttrium oxide stabilizer. Impushana igaywa emanzi ukuze ifinyelele usayizi wezinhlayiyana ezifanayo, bese yomiswa. Impushana eyomile yenziwa ubuhlalu kusetshenziswa amasu okugoqa athuthukile noma amasu okucindezela e-isostatic, alandelwa ukucwiliswa kwezinga lokushisa eliphezulu kumakloni alawulwa ngekhompuyutha ukuze kuzuzwe ukuminyana okuphelele. Ngemva kokucwenga, ubuhlalu buyahlolwa futhi buhlungwe ukuze kuqinisekiswe ukusatshalaliswa kosayizi phakathi kuka-±0.1 mm. Ubuhlalu obunama-sphericity aphansi, ukonakala kwendawo, noma ubukhulu obungalingani nosayizi bunqatshiwe.

Ikhwalithi yokulawula.Yonke inqwaba ihlolelwa okuqukethwe kwe-ZrO₂ kanye ne-Y₂O₃ nge-X-ray fluorescence; ukuminyana nge-pycnometer; ukuchoboza amandla ngomhloli wokucindezela; Vickers ubulukhuni nge-ASTM C1327; i-sphericity ngokuhlunga optical; kanye nezinga lokuguga ngokuhlolwa kokugaya okujwayelekile komkhakha. Isitifiketi sokuhlaziya sinikezwa ngokuthunyelwa ngakunye.

Yini eyenza uTecera ahluke.Abahlinzeki abaningi banikela ngobuhlalu be-zirconia obuqinile be-yttria-stabilized kodwa buhluka kakhulu ngekhwalithi ukusuka kunqwaba kuye kwelinye. I-Tecera isebenzisa ukulawula okunembe kwe-sintering kanye nokuhlunga okuqinile ukuze igcine ukuhluka kosayizi wobuhlalu ngaphakathi kuka-±0.1 mm, ne-sphericity engaphezu kuka-97% yawo wonke amadayamitha. Ubuhlalu obupholishiwe buphinde bunciphise ukuguga kwemishini yokugaya kufika ku-30%, kwehlisa izindleko zokulungisa ikhasimende lakho kuyilapho kunwetshwa impilo yemidiya. Ubuhlalu obungaguquki usayizi kanye

umumo uhumusha ngokuqondile emiphumeleni yokugaya ezinzile - kanye nezikhalazo ezimbalwa zekhasimende.

Imininingwane Yezobuchwepheshe

Ithebula elingezansi libonisa ukucaciswa okujwayelekile kwamabanga e-Tecera's yttria‑stabilized zirconia bead. Izitifiketi zenqwaba ziyatholakala.

Amadayamitha atholakalayo (mm):

I-Nano / ultra-fine grinding (0.03–1.5 mm): 0.03, 0.05, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1.0, 1.2, 1.5

Ukugaya kahle / ukuhlakazwa (1.5–6 mm): 1.5–2.0, 2.0–2.5, 3, 4, 5, 6

Ukugaya okuvamile / okuphakelayo okuqinile (6–25 mm): 7, 8, 10, 12, 15, 20, 25

Ukubekezelela:±0.1 mm ngobubanzi obungaphansi noma obulingana no-3 mm; ±0.2 mm kumadayamitha amakhulu.

Izinzuzo Zomkhiqizo

Ukusebenza kahle kokugaya okungenakuqhathaniswa.Ngoba ubuhlalu be-yttria‑stabilized zirconia bunokuminyana kwangempela okucishe kube ngu-6.0 g/cm³ - ngaphezu kokuphindwe kabili kobuhlalu bengilazi (2.5) kanye no-60% ngaphezu kwe-alumina (3.6–3.9) - ukungqubuzana ngakunye kudlulisa amandla amakhulu kakhulu e-kinetic ezinhlayiyeni eziqondiwe. Kumshini wokugaya onyakaziswa ngesivinini esikhulu, lokhu kusho ukuthi isikhathi esifanayo sokugaya kukhiqiza izinhlayiya ezicolekile, noma ukucoleka okufanayo kufinyelelwa ngesikhathi esincane. Kumkhiqizi we-lithium yebhethri ye-cathode ekhiqiza amathani angu-10 e-LFP ngosuku, ukunciphisa isikhathi somjikelezo wokugaya ngo-30% kuhumusha ngokuqondile ekukhuphukeni kokuphuma kanye nezindleko zamandla eziphansi ngekhilogremu ngayinye.

Ukuqedwa ngokuphelele kokungcoliswa kwensimbi.Ngenxa yokuthi ubuhlalu abuqukethe insimbi yamahhala, azikho izinongo zensimbi, futhi azikho izinsimbi ezingavuzeka, ukungcoliswa kwensimbi okuyiziro kungena emfudlaneni womkhiqizo. Emkhiqizweni webhethri ye-lithium, ngisho ne-10 ppm yensimbi evela kumidiya yensimbi ingadala ukusabela okuseceleni okwehlisa umthamo nempilo yomjikelezo. Kumacwebe e-ceramic amhlophe, insimbi ibangela ukushintsha kombala - kube mhlophe okucwebezelayo kube mpunga noma kube nsundu. Ekucutshungulweni kwe-API yezemithi, ukungcoliswa kwensimbi kwephula izindinganiso zokuhlanzeka ezilawulayo. Ubuhlalu be-Zirconia buqeda zonke lezi zingozi. Kumthengi wezitolo ezinkulu, lokhu kusho ukuthi amakhasimende akho ezimbonini ezihlanzekile akukho okunye - kufanele asebenzise i-zirconia, futhi azokhokha iprimiyamu.

Ukumelana nokugqokwa okukhethekile kwandisa impilo yobuhlalu.Ngenxa yokuthi ubuhlalu bugxiliwe ukuze bube ukuminyana ngokugcwele nge-microstructure ecolekile, engenazimbotshana, ukulahlekelwa ukuzigqoka kuhlala ngaphansi kuka-0.01% ngamahora angu-24. Ubuhlalu bengilazi bungase bulahlekelwe ngo-0.1–0.5% nsuku zonke. Ngaphezulu konyaka wokusebenza okuqhubekayo, lowo mehluko usho ukuthi ubuhlalu be-zirconia budinga ukufakwa phezulu ngezikhathi ezithile kuphela, kuyilapho ubuhlalu bengilazi budinga ukushintshwa okuphelele izikhathi eziningi. Kumshini wokugaya umbala osebenza amahora angu-8,000 ngonyaka, ukushintsha kusuka engilazini kuye ebuhlalu be-zirconia kunganciphisa izindleko zokusetshenziswa kwemidiya ngo-70-80% ngonyaka, kuyilapho kuqeda ukwenqatshwa okuhlobene nokungcola.

Ukuqina kwe-fracture ephezulu kuvimbela ukuphuka.Ngenxa yokuthi i-yttria iqinisa isigaba sekristalu ye-tetragonal, okokusebenza kufinyelela ukuqina kokuphuka okudlula u-8 MPa·m¹/² - cishe ngo-65% ngaphezu kwe-alumina (4.6). Lapho uqhekeko luqala ukwakheka, izinhlamvu ze-tetragonal zishintsha zibe monoclinic, zinwebeka kancane bese zibeka ithiphu lokuqhekeka ekucindezelekeni. Lokhu kuvimbela umfantu ekusakazeni. Emshinini wokugaya wamandla aphezulu lapho ingilazi noma ubuhlalu beceramic obujwayelekile buzophahlazeka, ubuhlalu be-zirconia buhlala bunjalo. Abukho ubuhlalu obuphukile kusho ukuthi azikho izingcezu ezingcolisa umkhiqizo futhi azikho izigayo ezima kungazelelwe emfucumfucwini evala isikrini sokulahla.

Ukungangeni kwamakhemikhali kuwo wonke amabanga e-pH.Ngenxa yokuthi i-yttria-stabilized zirconia ifaka amakhemikhali cishe kuzo zonke izinhlelo ezinamanzi nezincibilikayo, ayisebenzi ngama-slurries ebhethri ane-acidic, izixazululo zokuhlanza i-alkaline, noma izincibilikisi eziphilayo. Ubuhlalu bensimbi buyagqwala. Ubuhlalu bengilazi buvuza ama-silicates. I-Alumina ingaguguleka kancane kuma-alkali aqinile. I-Zirconia ayikwenzi lokhu. Kubakhiqizi bezemithi abadinga ukucutshungulwa okuthobelana ne-USP, kanye nabakhiqizi bebhethri abaphatha ama-electrolyte abolayo, lokhu kungasebenzi akuxoxiswana. Ikhasimende lakho lingasebenzisa ubuhlalu obufanayo emigqeni eminingi yomkhiqizo ngaphandle kokukhathazeka ngokunukubezeka.

Izimo Zokusebenza - Izibonelo Zemboni Yangempela

Izinto zebhethri ye-lithium (i-cathode ne-anode).Ubuhlalu be-zirconia obuqinile be-Yttria buyimidiya evamile yokugaya izinto ze-cathode ezifana ne-LFP, i-NMC, nezithasiselo ezisebenzayo ezifana ne-carbon black. Ukugaya kuya kusayizi wezinhlayiyana ezingaphansi kwe-micron kuthuthukisa indawo engaphezulu kanye namazinga okusabalalisa ion ye-lithium, okuthinta ngokuqondile umthamo webhethri nempilo yomjikelezo. Ubuhlalu busetshenziselwa ukugaya ama-solid-state electrolyte nama-silicon anode. Umkhiqizi omkhulu wezinto zebhethri e-China ubike ukuthi ukushintsha kusuka ku-alumina kuye ku-95% we-zirconia yobuhlalu kunciphisa ukungcoliswa kwensimbi kusuka ku-25 ppm kuya ngaphansi kuka-5 ppm, okuhlangabezana nencazelo eqinile yekhasimende futhi kuvumela inkontileka yamadola ayizigidi eziningi.

Izitsha zobumba zikagesi kanye ne-MLCC.Ukugaywa kwe-barium titanate, i-alumina, i-silicon nitride, nezinye izimpushana zobumba ze-multilayer ceramic capacitor (MLCC), izingxenye ze-piezoelectric, nama-semiconductor substrates. Ukusatshalaliswa kosayizi wezinhlayiya kuthinta ngqo i-dielectric constant, voltage breakdown, namandla okusebenza. Umkhiqizi we-MLCC wase-Japan usebenzisa ubuhlalu be-zirconia be-Tecera obungu-0.3–0.6 mm ukuze afinyelele ku-D50 ngaphansi kuka-0.3 μm ngokusatshalaliswa okuncane kakhulu, ehlisa izilinganiso zokulahla ngo-40% uma kuqhathaniswa nemidiya yangaphambili ye-alumina.

Opende abasezingeni eliphezulu, ama-coating ezimoto, noyinki wedijithali.Ukusatshalaliswa kwe-titanium dioxide (TiO₂), i-carbon black, i-organic pigments, nama-metallic flakes wokuqedwa kwezimoto okuphambili, okokumboza kwezimboni, noyinki we-inkjet. Ubuhlalu be-Zirconia bunikeza amandla aphezulu okugunda adingekayo ukuze kunqamuke ama-agglomerates ngaphandle kokwethula ukungcola okuthinta umbala. Umhlinzeki wokupenda wezimoto e-Germany ushintshile esuka ebuhlalu bengilazi waya ebuhlalu be-zirconia obungu-0.6–1.0 mm futhi wazuza ukuhlakazeka okusheshayo okungama-35% ngokuvumelana kombala okuthuthukisiwe, ehlisa ukuhlukahluka kweqoqo nenqwaba nezikhalazo zamakhasimende.

I-Pharmaceutical API nano-grinding kanye nokuphazamiseka kweseli.Ukugaya okuhle kakhulu kwezithako zemithi esebenzayo (ama-API) kuze kufike ebangeni le-nano ukuze uthole ukutholakala kwe-bioavailability okuthuthukisiwe nezinga lokuqedwa. Ubuhlalu be-Zirconia busetshenziselwa ukuphazamiseka kwamaseli ezinto eziphilayo ekugomeni nasekukhiqizeni i-biotech. Umkhiqizi wenkontileka yezemithi e-United States uqinisekise ubuhlalu be-zirconia be-Tecera obungu-0.1–0.3 mm ukuze kugaywe okumanzi kwe-API enganyibiliki kahle, kuzuze u-D90 ngaphansi kuka-200 nm ngenkathi ephasa zonke izivivinyo ze-USP ezivuzayo zensimbi - okuthile imidiya yensimbi engakwazanga ukuyifinyelela.

Izimonyo nezingulube zebanga lokudla.Ukugaywa kwe-mica, i-titanium dioxide, i-iron oxides, nezinye izikhala zombala ukuze kusetshenziswe izindebe zomlomo, izisekelo, ama-eyeshadows, nemibala yokudla. Noma yikuphi ukungcoliswa kwensimbi kungathinta umbala noma ukuphepha. Ubuhlalu be-Zirconia abunabo ubuthi, futhi abuqukethe izinsimbi ezisindayo ezingavuzeka. Umkhiqizi wezimonyo eSouth Korea usebenzisa ubuhlalu be-Tecera ukuze kucutshungulwe umbala we-pigment, athole ukukhanya okungaguquki kuwo wonke amaqoqo okukhiqiza anokukhononda okungashintshi kombala.

I-powder metallurgy nezimpushana zokuphrinta ze-3D.Ukugaya nokusakazwa kwezimpushana zensimbi (i-tungsten, i-molybdenum, ingxubevange ye-titanium) nezinhlanganisela ze-ceramic-metal lapho ubumsulwa bubaluleke kakhulu. Ubuhlalu be-Zirconia buvimbela ukungcoliswa kwensimbi okungashintsha ukwakheka kwe-alloy. Umkhiqizi wempushana yensimbi e-United States uthole amazinga e-oxygen aphansi kanye ne-ayoni ngokuqhubekayo ku-titanium alloy powder - evumela isitifiketi sezinhlelo zokusebenza ze-aerospace AM - ngemva kokushintshela kubuhlalu be-Tecera zirconia.

Amakhemikhali ezolimo kanye nokuvikelwa kwezitshalo.Ukugaya izimpushana ezimanzi (WP), ukumiswa (SC), nokunye ukwakheka kwezibulala-zinambuzane. Ubuhlalu abusabelani nezithako ezisebenzayo futhi bumelana nokugqwala okuvela kuzincibilikisi ezinolaka. Inkampani yesayensi yezitshalo esifundazweni sase-Jiangsu ishintshe imidiya yensimbi yafaka ubuhlalu be-Tecera zirconia, yehlisa isikhathi sokugaya ngo-25% ngenkathi isusa ukuwohloka kwe-iron-catalyzed kwezithako ezisebenzayo ezibucayi.

Uku-oda nokusekela

I-Tecera ihlinzeka ngobuhlalu be-zirconia obuzinzile be-yttria-zirconia ebangeni elingu-95% le-YSZ, elinobubanzi obusuka ku-0.03 mm ukuya ku-25 mm. Ukupakishwa okujwayelekile: 25 kg inethi ezikhwameni zePP noma izikhwama ezinkulu ezingu-500 kg/1,000 kg. Intengo yenqwaba iyatholakala kubathengi bezitolo ezinkulu, futhi amasampula amahhala anikezwa ukuhlolwa okulimazayo.

Ukuze ucele ikhwowuthi, sicela unikeze: i-diameter yobuhlalu edingekayo, ibanga (okujwayelekile noma ukuhlanzeka okuphezulu), okokusebenza okufanele kugaywe, ukucoliseka okuqondiwe, uhlobo lwesigayo nesivinini, kanye nesilinganiso sevolumu yonyaka. Siphendula zingakapheli izinsuku ezimbili zebhizinisi. Ukuthunyelwa komhlaba wonke, isitifiketi se-ISO 9001, kanye nemibhalo egcwele yokulandeleka kunikezwa kuwo wonke ama-oda okuhweba.

Amashadi ashisayo: I-Yttria-Stabilized Zirconia Beads, China Yttria‑Stabilized Zirconia Beads abakhiqizi, abahlinzeki, imboni