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

Barium Ferrite ( BaO·6Fe2O3 )

Material Summary:

                      [Ref. 1]         
Manufacturer........: Unknown
Material Designation: barium ferrite
Material Form.......: Polycrystal
Composition.........: BaO·6Fe2O3; also written as BaFe12O19
Processing..........: 

References:

[1] M. Iwasa, E. C. Liang, R. C. Bradt, and Y. Nakamura, "Fracture of Isotropic and Textured Ba Hexaferrite" Journal of the American Ceramic Society, Vol. 64, No. 7, 390-393 (1981).

Property Table:

Temperature = 23 °C
Grain    Porosity    Fracture      Fracture   Measurement  Measurement  Comments
Size                 Toughness     Energy     Method       Environment
[µm]       [%]       [MPa·m1/2]     [J/m2] 
------   --------   ------------   ---------  -----------  -----------  --------------------------------
             5          0.96         2.82        CF            air       Intergranular fracture; E = 154 GPa
                        1.57         6.35                                Isotropic; E = 183 GPa
                        2.83        11.92                                Transgranular fracture; E = 317 GPa
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