Silicon carbide coj zoo li lub pob zeb diamond. Nws tsis yog tsuas yog lub teeb tshaj plaws, tab sis kuj yog cov khoom siv hluav taws xob nyuaj tshaj plaws thiab muaj cov thermal conductivity zoo, tsis tshua muaj thermal expansion thiab tiv taus acids thiab lyes.
Nrog silicon carbide ceramics cov khoom siv nyob twj ywm mus rau qhov kub siab tshaj 1,400 ° C. Lub siab Young's modulus> 400 GPa ua kom muaj kev ruaj ntseg zoo heev. Cov khoom siv no ua rau silicon carbide predestined siv los ua cov khoom siv. Silicon carbide masters corrosion, abrasion thiab yaig raws li kev txawj ntse thaum nws sawv ntsug rau kev sib txhuam hnav. Cheebtsam yog siv nyob rau hauv tshuaj nroj tsuag, mills, expanders thiab extruders los yog li nozzles, piv txwv li.
"Cov variants SSiC (sintered silicon carbide) thiab SiSiC (silicon infiltrated silicon carbide) tau tsim lawv tus kheej. Cov tom kawg yog qhov tshwj xeeb tshaj yog tsim rau kev tsim cov khoom loj-ntim complex. "
Silicon carbide yog toxicologically nyab xeeb thiab tuaj yeem siv rau hauv kev lag luam khoom noj. Lwm daim ntawv thov rau silicon carbide Cheebtsam yog dynamic sealing tshuab siv kev sib txhuam bearings thiab mechanical seals, piv txwv li nyob rau hauv cov twj thiab tsav. Piv nrog rau cov hlau, silicon carbide ua rau cov kev daws teeb meem zoo nrog lub neej ntev dua thaum siv nrog kev tawm tsam hnyav, kub kub. Silicon carbide ceramics kuj yog qhov zoo tagnrho rau siv rau hauv kev xav tau hauv cov khoom siv hluav taws xob, tshuaj lom neeg, khoom siv hluav taws xob, ntawv tsim khoom thiab ua cov khoom siv yeeb nkab.
Reaction bonded silicon carbide, tseem hu ua siliconized silicon carbide los yog SiSiC, yog ib hom silicon carbide uas yog tsim los ntawm cov tshuaj tiv thaiv ntawm porous carbon los yog graphite nrog molten silicon. Vim yog sab laug ntawm cov kab ntawm silicon, cov tshuaj tiv thaiv kev sib koom ua ke silicon carbide feem ntau hu ua siliconized silicon carbide, los yog nws lub npe SiSiC.
Yog tias cov ntshiab silicon carbide yog tsim los ntawm sintering ntawm silicon carbide hmoov, nws feem ntau muaj cov kab mob ntawm cov tshuaj hu ua sintering aids, uas tau ntxiv los txhawb cov txheej txheem sintering los ntawm kev cia qis sintering kub. Hom silicon carbide no feem ntau hu ua sintered silicon carbide, los yog abbreviated rau SSiC.
Cov hmoov silicon carbide tau txais los ntawm silicon carbide ua raws li tau piav qhia hauv tsab xov xwm silicon carbide.
(Saib los ntawm: CERAMTEC)[email tiv thaiv]
Post lub sij hawm: Nov-12-2018