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

McDanel 998 ( Al2O3 )

Material Summary:

                      [Ref. 1]         
Manufacturer........: McDanel Refractory Porcelain Co.
Material Designation: McDanel 998
Material Form.......: Polycrystal
Composition.........: 99.8% Al2O3
  (mass fraction)
Processing..........: 

References:

[1] S. W. Freiman, K. R. McKinney, and H. L. Smith, "Slow Crack Growth in Polycrystalline Ceramics" Fracture Mechanics of Ceramics, Vol. 2, pp. 659-676 (1974).

Property Table:

Temperature = 23 °C
Grain    Porosity    Fracture      Fracture   Measurement  Measurement  Comments
Size                 Toughness     Energy     Method       Environment
[µm]       [%]       [MPa·m1/2]     [J/m2] 
------   --------   ------------   ---------  -----------  -----------  ----------------------------
20 [5-30]               4.9          35         AMDCB          air       KIc obtained at a 
                                                                         velocity of 10-4 m/s     
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