Silicon nitride bonded silicon carbide square beam

Lus piav qhia luv luv:

Si3N4 bonded SiC raws li cov khoom siv refractory tshiab, yog siv dav.Qhov kev thov kub yog 1400 C.Nws muaj thermal stability zoo dua, thermal shock, uas zoo dua li cov khoom siv refractory.-oxidation, siab corrosion resistant, hnav-tiv taus, siab dabtsi yog khoov zog.Nws muaj peev xwm tiv taus corrosion thiab scouring, tsis muaj kuab paug thiab ceev kub conduction nyob rau hauv molten hlau xws li AL, Pb, Zn, Cu ect.


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描述

Silicon nitride bonded silicon carbide

Si3N4 bonded SiC ceramic refractory khoom, yog tov nrog siab ntshiab SIC zoo hmoov thiab Silicon hmoov, tom qab plam casting chav kawm, cov tshuaj tiv thaiv sintered nyob rau hauv 1400 ~ 1500 ° C.Thaum lub sij hawm sintering, sau lub siab ntshiab Nitrogen rau hauv lub qhov cub, ces cov silicon yuav hnov ​​​​mob nrog Nitrogen thiab tsim Si3N4, Yog li Si3N4 bonded SiC cov khoom yog tsim los ntawm silicon nitride (23%) thiab silicon carbide (75%) raws li cov ntaub ntawv tseem ceeb. , sib tov nrog cov khoom siv organic, thiab zoo li tus sib tov, extrusion los yog pouring, ces ua tom qab ziab thiab nitrogenization.

 

特点

Nta thiab qhov zoo:

1.High kub kam rau ua
2.High thermal conductivity thiab poob siab tsis kam
3.High mechanical zog thiab puas kuj
4.Excellent zog efficiency thiab corrosion kuj

Peb muab cov khoom zoo thiab precision machined NSiC ceramic Cheebtsam uas txheej txheem los ntawm

1.Slip casting
2. Extruding
3.Uni Axial nias
4.Isostatic nias

Cov ntaub ntawv ntaub ntawv

> Chemical Composition Sic 75%
Sib 3N4 ≥23%
Dawb Si 0%
Qhov ceev (g / cm3) 2.70 ib2.80 Nws
Pom tseeb porosity (%) 1215
Khoov lub zog ntawm 20 ℃ (MPa) 180190
Khoov lub zog ntawm 1200 ℃ (MPa) 207
Khoov lub zog ntawm 1350 ℃ (MPa) 210
Compressive zog ntawm 20 ℃ (MPa) 580
Thermal conductivity ntawm 1200 ℃ (w / mk) 19.6 ib
Thermal expansion coefficient ntawm 1200 ℃ (x 10-6 /C) 4.70 ib
Thermal shock tsis kam Zoo heev
Max.kub (℃) 1600
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Cov duab 20230705142650

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