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

AD-90 ( al2O3 )

Material Summary:

                      [Ref. 1,2]
Manufacturer........: Coors Porcelain Co.
Material Designation: AD-90
Material Form.......: Polycrystal
Composition.........: 90% Al2O3
  (mass fraction)
Processing..........:

References:

[1] G. R. Anstis, P. Chantikul, B. R. Lawn, and D. B. Marshall, "A Critical Evaluation of Indentation Techniques for Measuring Fracture Toughness: I, Direct Crack Measurements" Journal of the American Ceramic Society, Vol. 64, No. 9, 533-538 (1981).

[2] L. M. Barker, "Short Rod K(Ic) Measurements of Al2O3" Fracture Mechanics of Ceramics, Vol. 3, pp. 483-493 (1973).

Property Table:

Temperature = 23 °C
Grain    Porosity    Fracture      Fracture   Measurement  Measurement  Comments
Size                 Toughness     Energy     Method       Environment
[µm]       [%]       [MPa·m1/2]     [J/m2]
------   --------   ------------   ---------  -----------  -----------  ----------------------------
4                      2.9                       DCB           air       Ref. 1; E = 406 GPa
                       2.83                      ICS                             E = 386 GPa
                       2.54                      IS                              E = 386 GPa
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4 [2-10]               3.06                      SR            air       Ref. 2; E = 276 GPa
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