Silicon carbide ceramics yog tsim los ntawm cov tshuaj tiv thaiv sintering. Qhov kub sintering tseem ceeb heev rau cov khoom lag luam zoo ntawm silicon carbide ceramics. Qhov cuam tshuam ntawm kev ua kom sov kub ntawm silicon carbide ceramics yog raws li hauv qab no:
1. Qhov kub sintering muaj feem cuam tshuam nrog kev cog lus me me thiab cov khoom siv dag zog ntawm silicon carbide ceramics. Raws li qhov kev sim, qhov kub ua kom sov nyob hauv thaj tsam ntawm 2160-2220 ℃, thiab qhov sib txheeb ze ntawm silicon carbide ceramic sintered lub cev ntau dua 96%. Cov txheej txheem tswj ntsuas kub rau silicon carbide ceramic ntau lawm tuaj yeem tsim nrog siv rau qhov ntsuas kub saum toj no.
2. Raws li qhov kev sim, thaum ntsuas kub ntawm silicon carbide ceramics yog 2220 ℃, qhov ntom ntawm lub cev sintered siab dua, mus txog qhov txheeb ze sib xws ntawm 98%; lub zog khoov yog 39913MPa, thiab Vickers hardness yog 2318GPa. Kev sib raug zoo ntawm kev khoov lub zog thiab qhov ntom kwv yees kwv yees txoj kev sib raug zoo, kev hloov pauv ntawm Vickers qhov nyuaj qhov hnyav nrog qhov kub tau zoo ib yam li kev hloov pauv ntawm kev hloov pauv lub zog, tab sis qhov hloov pauv me me.
3. Kev ntsuas kab ntawv kab thiab cov hmoov nyoos muaj qib siab ntawm qhov xwm txheej, qhia tias tsis muaj kev hloov pauv tshwm sim thaum lub sijhawm ua cov txheej txheem sintering, uas zoo ib yam nrog cov khoom siv raw hmoov feem ntau yog powder2SiC hmoov. Txawm li cas los xij, kev siv ntau ntawm cov kab tseem ceeb ntawm cov khoom siv sintered ntawm qhov kub siab ntawm 250 ° C hloov pauv ntau heev.
4. Thaum qhov kub sintering ntawm silicon carbide ceramics qis, lub cev sintered muaj ntau qhov hws thiab qhov ntom qis dua; cov pob zeb siv lead ua pib loj hlob me ntsis ntawm qhov kub uas tsim nyog, thiab lub cev sintered yog ntom. Kev kub hnyiab ntau dhau ua rau cov nplej siv lead ua txawv txav. Thaum lawv loj tuaj, cov qauv ua xoob thiab qhov ntom ntog tsawg. Rau qhov ntom ntom ntom ntom, lub zog ua kom muaj zog thiab qhov hnyav, qhov kub zoo dua qub zoo ib yam, thiab qhov kub zoo dua yog nyob ib puag ncig 2200 ° C.
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