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Fracture Toughness / Fracture Energy Data for Oxide Glass

NIST Standard Reference Database 137


Phosphate Base Glasses

Reference:

Other material collections: Property Data Summaries

Other materials: Oxide Glasses


Other Phosphate Glasses materials

P2O5 Base Glasses: P70a

Material Summary:

Molar composition: 70.6% P2O5 + 9.4% Al2O3 + 14.1% K2O + 1.6% La2O3) + 4.2% Nd2O3

Property Summary:

Property                           Value  Environment  Notes
---------------------------------  -----  -----------  --------------------------------------
Crack Growth Exponent []   .......: 
Elastic Modulus [GPa]   ..........: 56.8   Heptane      
Fracture Energy [J/m2]  ..........:  1.27  Heptane      Indentation crack length
Fracture Toughness [MPa m1/2].....:  0.38  Heptane      Indentation crack length