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Recrystallized Silicon Carbide Protection Tubes

Recrystallized Silicon Carbide Protection Tubes


Recrystallized silicon carbide protection tubes have high temperature strength,good thermal conductivity and long life properties, it widely used in ceramics,petrochemical,aerospace and other industrial sectors,the maxinum use temperature up to 1650 degree. 


Chemical Composition and Physical Properties

Index

RSIC

NSIC

SISIC

Bulk density(g/cm3)

2.60-2.74

2.75-2.82

>3.02

Porosity (%)

15

10-12

<0.1

Compression strength(MPa)

≥600

600-700

 

Bending strength(MPa)

90-100(20)

 

250(20)

100-120(1100)

160-180(1100)

280(1200)

Young’s modulus(GPa)

280(20)

220-260

 

Thermal conductivity(W/MK)

26(1200)

15(1200)

45(1200)

Thermal expansion(20-1000 oC) 10-6k-1

4.8

5.0

4.5

Max. working temperature(oC)

1650

1500

1380

Moh’s scale of thermal expansion

 

 

13

Si3N4(%)

0

20-30

 

a-SIC(%)

98.5

70-80