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

Silicon Dioxide ( SiO2 )

Material Summary:

                      [Ref. 1]    
Manufacturer........: Unknown
Material Designation: silicon dioxide; also known as silica
Material Form.......: Single Crystal
Composition.........: SiO2
Processing..........:

References:

[1] M. Iwasa and T. Ueno, "Fracture Toughness of Quartz and Sapphire Single Crystals at Room Temperature" Zairyo, Vol. 30, No. 337, pp. 1001-1004 (1981).

Property Table:

Temperature = 23 °C
Grain    Porosity    Fracture      Fracture   Measurement  Measurement  Comments
Size                 Toughness     Energy     Method       Environment
[µm]       [%]       [MPa·m1/2]     [J/m2] 
------   --------   ------------   ---------  -----------  -----------  --------------------------------
                        1.15                     CF            air       KIc - plane [0001]
                                                                         Direction [1-210]
                        0.97                     CF                      KIc - plane [01-10]
                                                                         Direction [-2110]
                        0.86                     CF                      KIc - plane [01-11]
                                                                         Direction [-2110]
                        0.85                     CF                      KIc - plane [11-20]
                                                                         Direction [1-100]
                        0.94                     CF                      KIc - plane [11-21]
                                                                         Direction [1-100]                                                                      
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