AD-999 ( Al2O3 )

Reference: NIST Technical Note

Reference: NIST Structural Ceramics Database

Note: About Property Data Summaries.

Note: Abbreviations and Other Notes

Note: Other Materials



Material Summary:

                      [Ref. 1,2,3,4,5,6]             
Manufacturer........: Coors Porcelain Co.  
Material Designation: AD-999           
Material Form.......: Polycrystal     
Composition.........: 99.9% Al2O3        
  (mass fraction)
Processing..........: Sintered




References:

   [1] L. A. Simpson, "Microstructural Considerations for the Application of Fracture Mechanics
       Techniques"
       Fracture Mechanics of Ceramics, Vol. 2, pp. 567-577 (1974).
   [2] 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).
   [3] L. M. Baker, "Short Rod K(Ic) Measurements of Al2O3"
       Fracture Mechanics of Ceramics, Vol. 3, pp. 483-493 (1973).
   [4] G. D. Swanson, "Fracture Energies of Ceramics"
       Journal of the American Ceramic Society, Vol. 55, No. 1, 48-49 (1972).
   [5] C.A. Tracy and G.D. Quinn, "Fracture Toughness by the Surface Crack in Flexure (SCF)
       Method," Ceramic Engineering and Science Proceedings, Vol. 15, pp. 837-845 (1994).
   [6] R. J. Gettings and G. D. Quinn, "Surface Crack in Flexure (SCF) Measurements of the
       Fracture Toughness of Advanced Ceramics," Ceramic Engineering and Science Proceedings,
       Vol. 16, pp. 539-544 (1995)



Property Table:

Temperature = 23 °C

Grain    Porosity    Fracture      Fracture   Measurement  Measurement  Comments
Size                 Toughness     Energy     Method       Environment
[µm]       [%]       [MPa·m1/2]     [J/m2] 
------   --------   ------------   ---------  -----------  -----------  ----------------------------
3                                    19.7        SENB           air       Ref. 1
                                     19.05       DCB   
----------------------------------------------------------------------------------------------------
3                      3.9                       DCB                      Ref. 2; E = 406 GPa
                       3.32                      ICS                              E = 386 GPa
                       3.09                      IS                               E = 386 GPa
----------------------------------------------------------------------------------------------------
3 [1-6]                3.12                      SR                       Ref. 3; E = 386 GPa      
----------------------------------------------------------------------------------------------------
3                                    24.3        DCB                      Ref. 4; E = 386 GPa
----------------------------------------------------------------------------------------------------
<10                    3.6                       SCF                      Ref. 5; E = 401 GPa
----------------------------------------------------------------------------------------------------
                       3.39                      SCF           air        Ref. 6; E = 386 GPa, nu = 0.21,
                                                                                  density = 3.96 g/cm3
--------------------------------------------------------------------------------------------------------


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