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

ADP ( NH4)H2PO4 )

Material Summary:

                      [Ref. 1]         
Manufacturer........: NRL
Material Designation: ADP (ammonium dihydrogen phosphate)
Material Form.......: Single Crystal
Composition.........: NH4)H2PO4 


[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).

Property Table:

Temperature = 23 °C
Grain    Porosity    Fracture      Fracture   Measurement  Measurement  Comments
Size                 Toughness     Energy     Method       Environment
[µm]       [%]       [MPa·m1/2]     [J/m2] 
------   --------   ------------   ---------  -----------  -----------  ----------------------------
                                      2         AMDCB          air       {110} plane and E=9 GPa