SIC

SIC materials' properties
Manufacturer: Atlas Engineering group
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SIC materials' properties

 

Properties R-SiC S-SiC
porosity (%)   ≤0.3  ≤0.2
density (g/cm3) 3.05 3.1-3.15
hardness 110-125 (HS) 2800 (kg/mm2)
elastic modulus (Gpa) ≥400 ≥410
SiC content (%) ≥85% ≥99%
Si content (%) ≤15% 0.1%
bend strength (Mpa) ≥350 450
compressive strength (kg/mm2) ≥2200 3900
coefficient of heat expansion (1/C) 4.5x10-6 4.3x10-6
heat resistance (in the atmosphere) (C) 1300 1600

Test environment: 125-300 hours of immerged testing, continuously stirred.

Test environment Corrosive weight loss (mg/cm2yr)  
concentration reagent (wt%) temperature (C) R-SiC S-SiC
98% H2SO4 100 50 1.5
50%NaOH 100 1000 2.5
53%HF 100 7 0.2
85%H3PO4 100 8 0.2
70%HNO3 100 0.5 0.2
45%KOH 100 1000 0.2
25%HCL 100 0.9 0.2
10%HF plus 57%HNO3 25 1000 0.2

 

 

 

 

 

 

 

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