Silicon Carbide Ceramicmoulding txheej txheem sib piv: Sintering cov txheej txheem thiab nws cov txiaj ntsig thiab qhov tsis zoo
Hauv kev tsim cov Silicon Carbide Ceramics, kev sib sau tsuas yog ib qhov txuas hauv tag nrho cov txheej txheem. Sintering yog cov txheej txheem tseem ceeb uas cuam tshuam rau qhov kev ua tau zoo kawg nkaus thiab kev ua tau zoo ntawm Ceramics. Muaj ntau txoj kev sib txawv ntawm sintering silicon carbide ceramics, txhua tus nrog nws tus kheej zoo thiab qhov tsis zoo. Hauv no blog ncej, peb yuav tshawb txog cov txheej txheem Sintering ntawm Silicon Carbide Ceramics thiab piv ntau txoj kev.
1. Reacting:
Cov tshuaj tiv thaiv Sintering yog cov neeg nyiam fabricique nrov rau Silicon Carbide Ceramics. Qhov no yog qhov yooj yim thiab raug nqi nyob ze net-rau-loj txheej txheem. Sintering yog tiav los ntawm cov tshuaj silicidation ntawm ib qho kub tsawg ntawm 1450 ~ 1600 ° C thiab sijhawm luv luv. Txoj kev no tuaj yeem tsim cov feem ntawm qhov loj me thiab cov duab nyuaj. Txawm li cas los xij, nws tseem muaj nws qhov tsis zoo. Siliconizing cov tshuaj tiv thaiv inevitably ua rau 8% ~ 12% dawb silicon hauv silicon carbide, corrosion tsis kam, thiab oxidation tsis kam. Thiab qhov ntsuas kub yog tsawg dua hauv qab 1350 ° C.
2. Kub nias Sintering:
Kub nias Sintering yog lwm txoj kev sib xws rau Sintering Silicon Carbide Ceramics. Hauv cov qauv no, cov hmoov nplej kom qhuav silicon tau sau rau hauv pwm thiab rhuab thaum thov kom siab los ntawm kev coj ua tsis zoo. Qhov kev ua cua sov no thiab cov siab txhawb nqa cov txheej txheem dolble diffusion, ntws, ua rau cov nplej ua kom zoo nkauj, muaj kev sib txheeb ze, thiab cov kws kho zoo heev. Txawm li cas los xij, kub nias Sintering tseem muaj nws qhov tsis zoo. Cov txheej txheem muaj kev nyuaj ntau dua thiab xav tau cov khoom siv pwm zoo thiab khoom siv. Kev tsim tawm yog tsawg thiab tus nqi yog siab. Ib qho ntxiv, hom no tsuas yog tsim nyog rau cov khoom lag luam nrog cov duab yooj yim.
3. Kub Isostatic nias Sintering:
Kub iSostatic nias (hip) sintering yog txheej txheem koom nrog kev sib xyaw ua ke ntawm cov pa kub siab thiab isotropically. Nws yog siv rau sintering thiab densification ntawm silicon carbide ceramic hmoov, lub cev ntsuab lossis lub cev ua ntej. Txawm hais tias lub duav sintering tuaj yeem txhim kho kev ua tau zoo ntawm silicon carbide ceramics, nws tsis yog dav siv nyob rau hauv huab hwm coj ntau lawm vim yog txoj kev nyuaj thiab tus nqi siab.
4. Cov duab sintering:
Scricon cov txheej txheem kub thiab tus nqi qis ntawm silicon carbide ceramics. Nws tseem tso cai rau ntau txoj kev sib sau, ua rau nws haum rau cov duab thiab tuab. Hom qauv no yog heev haum rau loj-nplai kev lag luam ntau lawm ntawm silicon ceramics.
Hauv cov ntsiab lus, cov txheej txheem Sintering yog cov kauj ruam tseem ceeb hauv kev tsim khoom Sic ceramics. Qhov kev xaiv ntawm Sintering txoj kev yog xws li cov khoom xav tau ntawm cov ceramic, cov nqi sib zog ntawm cov nqi, cov nqi tsim khoom thiab ua haujlwm. Txhua txoj kev muaj nws tus kheej thiab qhov tsis zoo, thiab nws yog qhov tseem ceeb kom txiav txim siab cov txheej txheem kev tsim nyog tshaj plaws rau ib qho kev thov tshwj xeeb.
Lub Sijhawm Post: Lub Yim Hli 24-2023