Dab tsi yog cov teeb meem hauv sintering zirconia ceramics? Kev tsom xam ntawm tsib qhov tseem ceeb

Lub zircononia, vim lawv lub zog tshwj xeeb, kev ua kom muaj zog, thiab biocompatibility, tau siv dav hauv kev kho mob, thiab kev siv hluav taws xob. Txawm li cas los xij, lawv cov kev ua haujlwm zoo tshaj yog qhov siab ntawm cov txheej txheem zoo Sintering. Cov neeg tsim khoom lag luam feem ntau ntsib ntau txoj kev sib tw thaum lub siab tseem ceeb no- kub descification txheej txheem. Kab lus no yuav delve rau hauv cov teeb meem core thiab kev tshawb fawb rau zacconia siintering.

1. Cov neeg tuag taus thermal poob siab: tus ua txhaum rau kev tawg thiab tsis ua tiav
Hauv paus ua rau: sai sai txias tom qab sineding (xws li quenching) lossis hloov cua sov ua kom zoo sib txawv ntawm sab hauv thiab sab nraud zirconia Cheebtsam, tsim kev ntxhov siab ntawm lub zirconia, tsim kev ntxhov siab loj.

Qhov tshwm sim loj: saum npoo av lossis sab hauv tawg, lossis txawm tias brittle bacts, tuaj yeem tshwm sim, ua rau ib tus nqi ntse nyob rau hauv cov khoom scrap.

Cov Ntsiab Lus Tseem Ceeb: Zirconia Sinonia Sintering Rauv yuav tsum muaj cov kev zam tshwj xeeb uas muaj cov tshuaj lom zem heev. Cov khoom siv hluav taws xob ua kom muaj tshwj xeeb tshaj yog. High - Purity alumina (nruj me ntsis kev xaiv rau nrog nws cov khoom siv hluav taws xob zoo heev, muaj zog, thiab tshuaj lom neeg inertness.

2. Cov Khoom Siv: Purity txiav txim siab ua tiav
Hauv paus ua rau: impurities nyob rau hauv zirconia hmoov lossis tsis muaj tseeb cuam tshuam nrog cov stabilizers ntawm cov kev cuam tshuam loj heev nrog cov txheej txheem kev hloov pauv.

Qhov tshwm sim loj: tsis sib xws sensability, txawv txav grain kev loj hlob tuaj yeem txo qis lub zog, kev muaj zog, thiab kev ntseeg tau ntawm cov khoom kawg.

Cov khoom tseem ceeb: Tsim kom muaj cov khoom siv ua nruj thiab ua kom zoo rau kev siv cov hmoov av stabonia thiab meej} tswj cov ntsiab lus stabilizer.

3. Kev Tsim Kho Tsim: Lub Pob Txheem ntawm Kev Sib Txawv thiab Kev Lom Zem
Hauv paus ua rau: cov cua sov tsis zoo tsim, cov cua cua kub tsis zoo, lossis rwb thaiv tsev tsis zoo tuaj yeem ua rau muaj kev kub ntxhov hauv qhov cub tawg.

Qhov Teeb Meem Loj: Cov qib tsis sib xws hauv tib qho kev sib xyaw lossis txawm nyob rau hauv cov khoom siv tsis zoo hauv cov khoom lag luam thiab kev nyuaj hauv kev saib xyuas qhov tseeb.

Cov Ntsiab Lus Tseem Ceeb: Kev nqis peev hauv ib qho kev tshaj lij -} qib zinconia sitering rauv. Niaj hnub nimno cov cua sov yuav tsum muaj qhov tshwj xeeb:

Multi - cheeb tsam cheeb tsam ywj pheej tswj cov thev naus laus zis rau kev kub tsis tshua muaj cua sov.

Precision sensors thiab cov txawj ntse algorithms kom meej qhia cua sov / cov nqi txias thiab tuav kub.

Optimized thermal teb tsim minimizes sov sov poob thiab gradients.

4. Txheej txheem tsis: Tus plig ntawm science sintering

Cov hauv paus ua rau: cov chaw kub uas dhau lawm / tsawg dhau, cua sov (cua sov ceev / txias, tsis txaus lossis lub sijhawm tuav tas.

Qhov Teeb Meem Loj: "underfiring" cov txiaj ntsig hauv cov khoom lag luam, cov khoom tsis muaj zog; "Tshaj tawm" ua rau cov qoob loo grainening, kev ua tiav kev ua kev ua tau zoo, thiab txawm tias muaj kev cuam tshuam.

Cov Ntsiab Lus Hauv: Abandon Empiricism! Raws li cov ntaub ntawv tshwj xeeb thiab cov khoom lag luam, systementing sintering kev sim) yuav tsum tau ua kom pom tseeb qhov ntsuas kub, thiab lub sijhawm tuav. Programmable tswj yog lub hauv paus rau kev ua tiav ntawm cov txheej txheem nyuaj.

5. Post {{{1} sinteinging Ua: txuj ci ntawm txias
Hauv paus ua rau: tam sim ntawd sai sai txias txias (tshwj xeeb yog quenching) tom qab sintering, lossis tsis raug tswj cov chaw txias.

Qhov tshwm sim loj: nrawm shrinkage thiab kub shrinkage thiab kub shrinkitums thermal kev ntxhov siab, xws li kev xav tau microstructure (xws li theem tetragonal).

Cov Ntsiab Lus Tseem Ceeb: Ua ib lub tswv yim txias txias. Zam kev quenching thiab hloov cov txheej txheem ua haujlwm qeeb lossis ua ke micrealing cov microstrabture, thiab txhim kho kev ruaj khov ruaj khov thiab kev ntseeg tau ntawm cov khoom kawg.

6. Txheej txheem cej luam ntawm cov teeb meem cov teeb meem thiab cov kev daws teeb meem hauv zirconia sintering
Cov Txiaj Ntsig Tseem Ceeb Teeb Meem Tseem Ceeb
Thermal poob siab: ua kom txias sai thiab cua sov tuaj yeem ua rau tiv thaiv kev tawg lossis tsis ua haujlwm. Siv cov thermal poob siab - Cov ntaub ntawv resistant (xws li high- purity alumina) nyob rau hauv cov rintering rauv.
Cov yam ntxwv cov khoom siv: impurities lossis kev sib cav sib txawv tuaj yeem ua rau cov khoom tsis xws luag. Nruj me ntsis tswj raw khoom muaj peev xwm purity thiab sib piv, thiab ntxiv dag zog rau kev soj ntsuam zoo.
Sintering rauv tsim qauv: Tsis muaj cua sov, kev tswj qhov ntsuas kub, thiab tsis muaj peev xwm. Xaiv ib qho tshwj xeeb Sintering rauv nrog ntau - cheeb tsam tswj qhov ntsuas kub thiab ib qho niaj hnub tswj.
Txheej txheem tsis pom: Cov chaw tsis raug tuaj yeem ua rau muaj kev ua haujlwm hauv qab {}} {}} tua thiab ua haujlwm tsis raug. Kev tshawb fawb ua kom zoo tshaj plaws kub profiles thiab tuav lub sij hawm los ntawm kev sim.
Tshaj tawm - sinte sintering kev kho mob: txias sai sai yuav ua rau muaj kev ntxhov siab thiab tsis xws luag. Ua raws li kev pab cuam KUB cua txias thiab, yog tias tsim nyog, ntiav cov annealing.
Txhawj xeeb txog kev hais tawm tsawg dua thiab kev ua tau tsis ruaj khov hauv Zirconia? Hu rau peb cov kws tshaj lij thev naus laus zis rau kev daws teeb meem thiab cov cuab yeej siv siab los thawb cov kev ua tau zoo ntawm koj cov khoom lag luam zirconia!