- 15
- Sep
Zirconium Mullite Cib
Zirconium Mullite Cib
Khoom zoo: siab loj ceev, loj loj ntim, siab txhua yam zog ntawm chav tsev kub thiab high kub, zoo thermal poob siab stability, tsis tshua muaj reheating shrinkage thiab kub nkag, thiab zoo tshuaj stability thiab kuj mus alkaline xov xwm.
Kev muab khoom kom zoo dua: Kev siv lub tshuab ua kom tsis muaj zog tuaj yeem ua tiav, xa thoob tebchaws
Daim ntawv thov khoom: Feem ntau siv hauv qhov tseem ceeb ntawm cov kilns xws li iav kilns, iav fiber ntau kilns, pob zeb wool fiber ntau kilns, khib nyiab hlawv cov kilns, ceramic frit glaze kilns, hluav taws xob rauv, thiab lwm yam.
khoom piav qhia
Zirconium mullite cib txhim kho cov qauv ntawm mullite los ntawm kev qhia ZrO2 rau hauv A12O3-SiO2 cib, uas tuaj yeem txhim kho cov tshuaj tiv thaiv, thermal poob siab tsis kam thiab txo cov coefficient ntawm nthuav ntawm mullite. Nws feem ntau yog ua los ntawm electrofusion. Nws kuj yog tsim los ntawm txoj kev sintering.
Zirconium mullite cib yog cov khoom siv hluav taws xob tshwj xeeb uas tau ua los ntawm kev siv cov khoom lag luam alumina thiab zircon mloog zoo raws li cov ntaub ntawv raw thiab qhia zirconia rau hauv mullite matrix los ntawm cov txheej txheem ua kom rov ua txhaum.
Zirconium mullite cib qhia zirconia rau hauv mullite cib, thiab theem kev hloov pauv ntawm zirconia tuaj yeem txhim kho qhov kub thiab txias txhua yam khoom ntawm mullite cov ntaub ntawv. Zirconia txhawb kev ua txhaum ntawm cov ntaub ntawv mullite. Qhov ntxiv ntawm ZrO2 tuaj yeem ua kom nrawm dua thiab ua cov txheej txheem sib xyaw ntawm ZTM cov ntaub ntawv vim yog tsim cov tshuaj yaj yeeb qis thiab tsim cov chaw ua haujlwm tsis txaus. Thaum qhov sib faib loj ntawm zirconium mullite cib yog 30%, tus txheeb ze theoretical ntom ntom ntawm lub cev ntsuab raug rho tawm ntawm 1530 ° C nce mus txog 98%, lub zog nce mus txog 378MPa, thiab qhov tawv tawv nce mus txog 4.3MPa · m1/2.
Zirconium mullite cib yog tsim los ntawm kev lag luam alumina thiab zircon los ntawm kev sib xyaw ua ke sintering. Vim tias cov tshuaj tiv thaiv thiab kev ua txhaum tib lub sijhawm tau ua, kev tswj cov txheej txheem nyuaj. Feem ntau, zirconium mullite cib raug rhaub ntawm 1450 ° C kom ua rau lawv ntom ntom thaum tua, thiab tom qab ntawd kub txog 1600 ° C rau cov tshuaj tiv thaiv. ZrSiO4 decomposes rau hauv ZrO2 thiab SiO2 ntawm qhov kub siab tshaj 1535 ° C, thiab SiO2 thiab Al2O3 hnov mob rau tsim pob zeb mullite, vim tias ib feem ntawm cov kua theem tshwm sim thaum lub sij hawm ZrSiO4 decomposition, thiab decomposition ntawm ZrSiO4 tuaj yeem ua kom zoo dua qub thaj chaw tshwj xeeb, thiab txhawb kev sib tua.
Lub cev thiab tshuaj ntsuas
| project | Anti-stripping zircon cib | Siab zoo zircon cib | Ordinary zircon cib | Zirconia Corundum Cib | Zirconium Mullite Cib | Ib nrab zirconium cib | |
| ZrO2% | ≥65 | ≥65 | ≥63 | ≥31 | ≥20 | 15-20 | |
| SiO2% | ≤33 | ≤33 | ≤34 | ≤21 | – | ≤20 | |
| Al2O3% | – | – | – | ≥46 | ≥60 | 50-60 | |
| Fe2O3% | ≤0.3 | ≤0.3 | ≤0.3 | ≤0.5 | ≤0.5 | ≤1.0 | |
| Pom tau porosity% | ≤16 | ≤18 | ≤22 | ≤18 | ≤18 | ≤20 | |
| Ntau qhov ceev g / cm3 | 3.84 | 3.7 | 3.65 | 3.2 | 3.2 | ≥2.7 | |
| Lub zog sib zog ntawm chav sov Mpa | ≥130 | ≥100 | ≥90 | ≥110 | ≥150 | ≥100 | |
| Tus nqi ntawm kev hloov pauv cua sov% tsis ntau dua (1600 ℃ × 8h) | ± 0.2 | ± 0.3 | ± 0.3 | ± 0.3 | ± 0.3 | ± 0.3 | |
| Load softening pib kub ℃ (0.2MPa, 0.6%) | ≥1700 | ||||||