SiC physical property

Technical Parameter

Unit

SiC

SSiC

Sic+C

Ssic+C

Qssic+C

Hardness

HS

110

115

≥105

≥110

≥100

Porosity Rate

%

<0.3

<0.2

<0.5

<0.5

<5

Density

g/cm3

3.00~3.05

>3.10

2.69-2.90

2.70-3.0

2.65

Compressive Strength

MPa

>2200

>2500

>1400

>1600

>800

Fractural Strength

MPa

>350

>380

>150

>160

>100

Coefficient of Heat Expansion

10-6/oC

4

4.2

3.50

3.00

2.50

Content of Sic

%

≥90

≥98

≥85

≥92

≥90

Free Si

%

≤10

≤1

≤12

/

/

Elastic Modulus

GPa

≥400

≥410

≥350

≥360

≥180

Temperature

oC

1300

1400

1300

1400

1400