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

Titanium Nitride ( TiN )

Material Summary:

                      [Ref. 1]                    [Ref. 2,a]         [Ref. 2,b]          [Ref. 2,c]         [Ref. 2,d]
Manufacturer........: In laboratory               In laboratory      In laboratory       In laboratory      In laboratory
Material Designation: titanium nitride            titanium nitride   titanium nitride    titanium nitride   titanium nitride
Material Form.......: polycrystal                 polycrystal        polycrystal         polycrystal        polycrystal
Composition.........: TiN                         TiN                TiN + 5% Al2O3     TiN + 5% MgO       TiN + 5% Y2O3
Processing..........: hot isostatically pressed   hot pressed        hot pressed         hot pressed        hot pressed

References:

[1] M. Desmaison-Brut, L. Themelin, F. Valin, and M. Boncoeur, "Mechanical Properties of Hot-Isostatic-Pressed Titanium Nitride," Euro-Ceramics, Vol. 3, pp. 258-262 (1989).

[2] M. Moriyama, H. Aoki, Y. Kobayashi, and K. Kamata, "The Mechanical Properties of Hot-Pressed TiN Ceramics with Various Additives," Journal of the Ceramic Society of Japan, Vol. 101, pp. 279-284 (1993).

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                      SENB          air       Ref. 1;  E = 465 GPa; H = 18 GPa
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            14          3.4                      SENB          air       Ref. 2a; E = 353 GPa; H = 12.0 GPa
            13          5.3                      SENB                    Ref. 2b; E = 324 GPa; H = 13.8 GPa
            18          5.2                      SENB                    Ref. 2c; E = 288 GPa; H =  9.4 GPa
            15          5.5                      SENB                    Ref. 2d; E = 337 GPa; H = 12.3 GPa
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