Fracture Toughness / Fracture Energy Data for Ceramics

NIST Standard Reference Database 138


Reference: NIST Structural Ceramics Database

Other material collections: Property Data Summaries

Other Toughness materials

CVD Silicon Carbide ( SiC )

Material Summary:

                      [Ref. 1]         
Manufacturer........: Composites and Deposits
Material Designation: CVD silicon carbide
Material Form.......: Polycrystal
Composition.........: SiC


[1] S. W. Freiman, A. Williams, J. J. Mecholsky, and R. W. Rice, "Fracture of Si3N4 and SiC" Ceramic Microstructures, pp. 824-834 (1976).

Property Table:

Temperature = 23 °C
Grain    Porosity    Fracture      Fracture   Measurement  Measurement  Comments
Size                 Toughness     Energy     Method       Environment
[µm]       [%]       [MPa·m1/2]     [J/m2] 
------   --------   ------------   ---------  -----------  -----------  --------------------------------
1-3                                  16         AMDCB          air       Ref. 1; Fracture parallel to
1-3                                  21         AMDCB                            Fracture perpendicular to