Fracture Toughness / Fracture Energy Data for Ceramics

NIST Standard Reference Database 138


Reference:

Reference: NIST Structural Ceramics Database

Other material collections: Property Data Summaries



Other Toughness materials

HS-130 ( Si3N4 )

Material Summary:

                      [Ref. 1,2,3]                         
Manufacturer........: Norton Co.          
Material Designation: HS-130
Material Form.......: Polycrystal     
Composition.........: Si3N4             
Processing..........: Hot pressed

References:

[1] J. L. Henshall, D. J. Rowcliffe, and J. W. Edington, "The Fracture Toughness and Delayed Fracture of Hot-Pressed Silicon Nitride" Proceedings of the British Ceramic Society, No. 6, pp. 185-198 (1975).

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

[3] J. J. Mecholsky, S. W. Freiman, and R. W. Rice, "Fracture Surface Analysis of Ceramics" Journal of Materials Science, Vol. 11, pp. 1310-1319 (1976).

Property Table:

Temperature = 23 °C
Grain    Porosity    Fracture      Fracture   Measurement  Measurement  Comments
Size                 Toughness     Energy     Method       Environment
[µm]       [%]       [MPa·m1/2]     [J/m2] 
------   --------   ------------   ---------  -----------  -----------  --------------------------------
                        4.5                     SENB          air        Ref. 1   
--------------------------------------------------------------------------------------------------------
[1-3]                                43         AMDCB         air        Ref. 2; Major additive/impurity
                                                                                 = Mg
--------------------------------------------------------------------------------------------------------
 1                                   45         AMDCB         air        Ref. 3; E = 310 GPa
--------------------------------------------------------------------------------------------------------