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

Magnesium Fluoride ( MgF2 )

Material Summary:

                      [Ref. 1]              [Ref. 2]
Manufacturer........: Kodak                 unknown
Material Designation: magnesium fluoride    magnesium fluoride
Material Form.......: polycrystal           polycrystal
Composition.........: MgF2       MgF2
Processing..........:                      hot pressed

References:

[1] J. J. Mecholsky, S. W. Freiman, and R. W. Rice, "Fracture Surface Analysis of Ceramics" Journal of Materials Science, Vol. 11, pp. 1310-1319 (1976).

[2] G. D. Quinn, J. J. Swab, and M. D. Hill, "Fracture Toughness by the Surface Crack in Flexure (SCF) Method: New Test Results," Ceramic Engineering and Science Proceedings, Vol. 18 (4), pp. 163-172 (1997).

Property Table:

Temperature = 23 °C
Grain    Porosity    Fracture      Fracture   Measurement  Measurement  Comments
Size                 Toughness     Energy     Method       Environment
[µm]       [%]       [MPa·m1/2]     [J/m2] 
------   --------   ------------   ---------  -----------  -----------  --------------------------------
 1                                    4          AMDCB         air       Ref. 1; E = 110 GPa
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                         0.98                    SCF           air       Ref. 2; density = 3.18 g/cm3
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