Kev ua tau zoo ntawm silicon carbide ceramics

Cov khoom siv zoo heev: Silicon carbide ceramics muaj lub zog khoov siab, siab hnav tsis kam, thiab tsis tshua muaj kev sib txhuam coefficient. Nws qhov tseem ceeb tshaj plaws yog lub zog kub kub, txawm tias nyob rau ntawm 1400 degrees Celsius, qhov khoov lub zog tseem nyob rau theem siab, uas ua rau nws ua haujlwm kub txog 1600-1700 degrees Celsius.
oxidation kuj zoo heev: Ntawm tag nrho cov uas tsis yog oxide ceramics, silicon carbide muaj qhov zoo tshaj plaws oxidation kuj.
Zoo corrosion kuj: Silicon carbide ceramics tuaj yeem tiv thaiv kev yaig ntawm ntau yam tshuaj.
High thermal conductivity: Lub thermal conductivity ntawm silicon carbide ceramics yog thib ob tsuas yog beryllium oxide ceramics hauv cov ntaub ntawv ceramic.
Disadvantage: Cov pob txha toughness ntawm silicon carbide ceramics yog qhov tsawg, uas yog, brittleness yog siab. Txawm li cas los xij, los ntawm cov cuab yeej siv hluav taws xob sib xyaw xws li fiber ntau reinforcement thiab heterogeneous particle dispersion ntxiv dag zog, nws lub zog thiab lub zog tuaj yeem txhim kho.
Kev tsim cov txheej txheem ntawm silicon carbide ceramics
Kev tsim cov txheej txheem ntawm silicon carbide ceramics feem ntau suav nrog peb kauj ruam: raw khoom npaj, sib sau, thiab tua.
Kev npaj cov khoom siv raw: Muaj ntau txoj hauv kev los npaj cov khoom siv silicon carbide, xws li carbon thermal txo, vapor deposition, thiab nws tus kheej propagating high-temperature synthesis (SHS). Cov txheej txheem no tuaj yeem npaj siab-purity silicon carbide hmoov.
Moulding: Kev molding ntawm silicon carbide ceramics tuaj yeem ua tiav los ntawm cov txheej txheem molding. Rau cov qauv zoo li lub cev, cov av nkos casting thiab kev txhaj tshuaj molding tuaj yeem siv tau.
Sintering: Lub sintering ntawm silicon carbide ceramics yog ib kauj ruam tseem ceeb, thiab feem ntau siv txoj kev muaj xws li atmospheric siab sintering, tshuaj tiv thaiv sintering, kub nias sintering, impregnation, thiab recrystallization. Cov txheej txheem no txhua tus muaj lawv tus kheej qhov zoo thiab qhov tsis zoo, thiab cov txheej txheem sintering tsim nyog yuav tsum raug xaiv raws li cov khoom siv tshwj xeeb.