Fracture Toughness / Fracture Energy Data for Ceramics

NIST Standard Reference Database 138

Last Update to Data Content: 1998



Reference: NIST Structural Ceramics Database

Other material collections: Property Data Summaries

Other Toughness materials

Uranium Dioxide ( UO2 )

Material Summary:

                      [Ref. 1,a]                 [Ref. 1,a]
Manufacturer........: UKAEA Springfields Lab.    UKAEA Springfields Lab.
Material Designation: uranium dioxide            uranium dioxide
Material Form.......: Polycrystal                Polycrystal
Composition.........: UO2                         UO2
Processing..........: Sintered at 1650 °C        Sintered at 1750 °C


[1] A. G. Evans and R. W. Davidge, "The Strength and Fracture of Stoichiometric Polycrystalline UO2" Journal of Nuclear Materials, Vol. 33, pp. 249-260 (1969).

Property Table:

Temperature = 23 °C
Grain    Porosity    Fracture      Fracture   Measurement  Measurement  Comments
Size                 Toughness     Energy     Method       Environment
[µm]       [%]       [MPa·m1/2]     [J/m2] 
------   --------   ------------   ---------  -----------  -----------  --------------------------------
  8         3                        6.5        SENB          argon      Ref. 1,a; a slit crack was
                                                                                   introduced below the notch.
 25         3                        3.5        SENB                     Ref. 1,b; a slit crack was
                                                                                   introduced below the notch.