Hauv cov ntawv thov kub siab, kev xaiv cov ntaub ntawv yog qhov tseem ceeb heev. Ntawm lawv, cov khoom siv silicon carbide uas tau ua los ntawm kev sib xyaw ua ke tau dhau los ua qhov kev xaiv nrov vim nws qhov kev ua tau zoo heev. Cov khoom siv silicon carbide uas tau ua los ntawm kev sib xyaw ua ke yog cov khoom siv ceramic uas tsim los ntawm kev sib xyaw ua ke ntawm cov pa roj carbon thiab silicon hmoov ntawm qhov kub siab.
Ua ntej, silicon carbide uas tau sintered los ntawm kev sib xyaw ua ke muaj kev ruaj khov zoo heev thaum kub thiab txias. Nws muaj peev xwm tswj tau nws lub zog kho tshuab thiab kev ruaj khov tshuaj lom neeg ntawm qhov kub thiab txias txog li 2,000 degrees Celsius. Qhov no ua rau nws zoo tagnrho rau kev siv kub thiab txias, xws li hauv kev lag luam roj av, hlau thiab ceramic.
Qhov thib ob, cov tshuaj silicon carbide uas tau sintered muaj kev tiv thaiv zoo heev. Cov khoom no muaj kev tiv thaiv zoo heev thiab tuaj yeem ruaj khov rau lub sijhawm ntev hauv kev sib txhuam thiab kev hnav khaub ncaws hnyav. Yog li ntawd, nws yog siv dav hauv kev sib tsoo, txiav thiab cov cuab yeej abrasive.
Tsis tas li ntawd xwb, cov tshuaj silicon carbide uas tau sintered kuj muaj cov thermal conductivity zoo heev thiab cov tshuaj inertia. Nws tuaj yeem ua kom sov sai thiab qhia tau tias muaj kev tiv thaiv corrosion zoo hauv cov chaw corrosive xws li acid thiab alkali. Qhov no ua rau nws siv dav hauv kev lag luam tshuaj lom neeg thiab kev tswj hwm thermal.
Nws yuav tsum tau sau tseg tias cov txheej txheem npaj ntawm cov tshuaj tiv thaiv-sintered silicon carbide yog qhov nyuaj heev, xav tau qhov kub siab thiab cov xwm txheej tshwj xeeb. Txawm li cas los xij, nrog rau kev nce qib ntawm thev naus laus zis, cov txheej txheem tsim khoom tau maj mam txhim kho, ua rau tus nqi ntawm cov khoom siv maj mam txo qis, thiab txhawb nqa nws daim ntawv thov dav hauv ntau qhov chaw.
Hauv kev xaus lus, ua cov khoom siv kub siab, cov silicon carbide reaction-sintered yog qhov kev xaiv zoo tshaj plaws rau ntau daim ntawv thov kub siab vim nws qhov ruaj khov kub zoo heev, tiv taus hnav, thermal conductivity thiab tshuaj inertia. Raws li cov thev naus laus zis txuas ntxiv txhim kho, peb tuaj yeem cia siab tias cov silicon carbide reaction-sintered yuav siv rau hauv ntau qhov chaw thiab kev txhim kho kev ua tau zoo ntxiv.
Lub sijhawm tshaj tawm: Lub Ib Hlis-15-2024