Silicon nitride thiab silicon carbide yog cov tshuaj sib txuas ua ke muaj zog heev, muaj cov khoom zoo sib xws thiab cov tshuaj lom neeg, silicon nitride ua ke nrog silicon carbide cov khoom uas muaj kev tiv thaiv kub siab, tiv thaiv corrosion, hnav tsis kam, tiv thaiv kev yaig, tiv thaiv oxidation thiab ntau yam khoom zoo heev. Silicon nitride thiab silicon carbide ua cov khoom siv refractory qib siab hauv ntau qhov chaw, qhov kub ib txwm siv tuaj yeem ncav cuag 1500 ℃ lossis li ntawd, siv dav hauv ceramics, non-ferrous metallurgy, hlau thiab hlau metallurgy, hmoov metallurgy, tshuaj lom neeg thiab lwm yam lag luam.
Silicon nitride ua ke nrog cov khoom siv silicon carbide thiab cov hlau uas tsis yog ferrous tsis nkag mus, thiab muaj cov khoom rwb thaiv tsev zoo, yog li nws yog siv dav hauv cov txheej txheem tsim cov hlau uas tsis yog ferrous xws li txhuas, tooj liab thiab zinc, tshwj xeeb tshaj yog cov khoom siv zoo tagnrho rau kev tsim cov electrolytic cell side wall lining bricks.
| Khoom | Cov ntsuas hluav taws kub | Cov lus qhia txog qhov cub | Cov khoom zoo li tus lej ntsuas |
| Pom tseeb porosity（%) | <16 | <16 | <14 |
| Qhov ceev ntawm cov khoom loj（g/cm3) | 2 2.65 | 2 2.65 | 2 2.68 |
| Lub zog compressive ntawm chav tsev kub（MPa) | 2 160 | 2 170 | 2 180 |
| Lub zog khoov ntawm chav tsev kub（1400X：) MPa | 2 40 | 2 45 | 2 45 |
| Lub zog khoov kub siab（1400r) MPa | 2 50 | 2 50 | 2 50 |
| Coefficient ntawm thermal expansion（110CTC)xioVC | <4.18 | <4.18 | <4.18 |
| Kev ua kom sov tau zoo（1100C) | 216 | 2 16 | 216 |
| Cov khoom siv hluav taws xob（°C ) | 1800 xyoo | 1800 xyoo | 1800 xyoo |
| 0.2 MPa Kub mos nyob rau hauv load（X：） | 1600 xyoo | 1600 xyoo | > 1700 |
| Qhov kub siab tshaj plaws ua haujlwm（°C) | 1550 xyoo | 1550 xyoo | 1550 xyoo |
