AD-995 ( Al₂O₃ )

Reference: NIST Structural Ceramics Database

Note: About Property Data Summaries.

Note: Abbreviations and Other Notes

Note: Other Materials

Material Summary:
                      [Ref. 1,2]              
Manufacturer........: Coors Porcelain Co.
Material Designation: AD-995         
Material Form.......: Polycrystal     
Composition.........: 99.5% 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).
   [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 [3-5]                3.7          19          AMDCB         air       Ref. 1; KIc obtained at a 
                                                                                 velocity of 10-4 m/s
                                                                        
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17 [5-50]               4.08                     SR            air       Ref. 2; E = 372 GPa           
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