Item \ Index

Si 2 N 4 -SiC-71

SiC,%

≥71

Si 2 N 4 ,%

≥23

Fe 2 O 3 ,%

≤1.5

Apparent Porosity ,%

≤18

Bulk Density , g/cm 3

≥2.6

Cold Crushing Strength , MPa

≥150

Bending Strength , MPa

≥30

High Temperature Bending Strength , MPa

≥40

Thermal Expansion Coefficient (1350℃)1/℃×10 -6

≤4.3