SCD Logo

Fracture Toughness / Fracture Energy Data for Oxide Glass

NIST Standard Reference Database 137


Borate Base Glassess

Reference:

Other material collections: Property Data Summaries

Other materials: Oxide Glasses


Other Borate Glasses materials

B2O3 Base Glasses: B98b

Material Summary:

Molar composition: 98% B2O3 + 2% Na2O

Property Summary:

Property                           Value  Environment  Notes
---------------------------------  -----  -----------  --------------------------------------
Crack Growth Exponent []   .......: 
Elastic Modulus [GPa]   ..........: 49.0   Air          Young's modulus is extrapolated.
Fracture Energy [J/m2]  ..........: 15.94  Air          Notched beam
Fracture Toughness [MPa m1/2].....:  1.25  Air          Notched beam