Njerwa ya silicate carbon ndi ya refractory yosagwirizana ndi nthaka, yomwe imapirira kuwonongeka kwa asidi ndi alkali slags, solvents, ndi dzimbiri lina la mankhwala. Silicon carbide ili ndi mphamvu zambiri, yolimbana ndi okosijeni, komanso yosasintha kutentha kwambiri. Mu zipangizo zonse zopangira njerwa zopanda okosijeni, njerwa ya silica carbon ndiyo yotsika mtengo kwambiri komanso yogwiritsidwa ntchito kwambiri m'malo ena. Izi zingagwiritsidwe ntchito m'mafakitale osiyanasiyana, monga makampani opanga miyala, makampani opanga magalasi, makampani opanga zitsulo, makampani osindikizira, ndi makampani opanga kuwala. Kupatula apo, njerwa ya silica carbon yogulitsidwa ili ndi magwiridwe antchito abwino kwambiri polimbana ndi kuwonongeka kwa chilengedwe, monga kutentha kwambiri, kukana kwa abrasive, kukana kutentha kwambiri, kukana kwamphamvu kwa asidi ndi alkali slag komanso kutentha kochepa.
Zipangizo zopangira silicate carbide ndi silicon carbide, pafupifupi 72%-99%. Silicon carbide imatchedwanso moissanite, corundum sand kapena refractory sand. yomwe imapangidwa ndi quartz sand, petroleum coke kapena coal tar, ndi matabwa, zomwe zimapangidwa ndi kusungunula kwa kutentha kwambiri mu uvuni wokana magetsi.
Njerwa za silicon carbide zimapangidwa kuchokera ku silicon carbide, chinthu chopangidwa mu uvuni wamagetsi wofanana ndi resistance pa kutentha kopitilira 2500°C, kudzera mu reaction ya silika ndi carbon. Njerwa za silika carbon zimakhala ndi mafunde amphamvu owirikiza kakhumi kuposa a fireclay refractories, dzimbiri labwino komanso kukana kutentha, ndipo zimatha kupangidwa kukhala mawonekedwe ovuta. Njerwa za silika cabon zimatha kupirira kuukira kwa slag ndi kukokoloka kwa moto.
Njerwa zopingasa za silicon carbide zitha kugawidwa m'magulu awiri: njerwa za silicon carbide zomangidwa ndi dongo, njerwa za silicon carbide zomangidwa ndi Si3N4, njerwa za silicon carbide zomangidwa ndi Sialon, njerwa za silicon carbide zomangidwa ndi β-SiC, njerwa za silicon carbide zomangidwa ndi Si2ON2 ndi njerwa za recrystal silicon carbide.
| Njerwa ya Silicon Carbide | |||||
| Zinthu | Chigawo | Njerwa za SiO2 Zolumikizidwa ndi Silicon Carbide | Njerwa za Azoxty-cornpounds Bonded Silicon Carbide | Njerwa za Mullite Bonded Silicon Carbide | |
| Al2O3 | % | ~ | ~ | ≥10 | |
| SiO2 | % | ≤8 | ~ | ~ | |
| Fe2O3 | % | ≤1 | ≤0.6 | ≤1 | |
| Sic | % | ≥90 | ≥80 | ≥85 | |
| Kuoneka ngati Porosity | % | ≤18 | ≤18 | ≤18 | |
| Kuchuluka Kwambiri | g/cm3 | ≥2.56 | ≥2.60 | ≥2.56 | |
| Mphamvu Yopondereza Yozizira | Mpa | ≥80 | ≥100 | ≥70 | |
| Kusakhazikika pansi pa katundu | ℃ | ≥1600 | ≥1620 | ≥1550 | |
| Kukhazikika kwa Kutentha kwa Kutentha()Nthawi/850) | ℃ | ≥40 | ≥40 | ≥35 | |
| Kutentha kwa Matenthedwe | w/m*k | ≥8 | ~ | ~ | |
| Mphamvu Yopindika Yotentha Yabwinobwino | Mpa | ≥25 | ≥30 | ≥25 | |
| Mphamvu Yopindika Yotentha Kwambiri1250℃*1h | Mpa | ≥20 | ≥25 | ≥20 | |
| Kutentha Kwambiri kwa Utumiki | ℃ | 1400 | 1500 | 1400 | |
Njerwa ya silika carbide imakhala ndi kutentha kwambiri, imateteza kutentha kwambiri, imateteza kutentha kwambiri komanso imateteza dzimbiri. Chifukwa chake njerwa ya silika carbon imagwiritsa ntchito zinthu zosiyanasiyana motere: