NIST Standard Reference Database 137
Other material collections: Property Data Summaries
Other materials: Oxide Glasses
Other Borate Glasses materials
Property Value Environment Notes --------------------------------- ----- ----------- -------------------------------------- Crack Growth Exponent [] .......: Elastic Modulus [GPa] ..........: 40.0 Air Young's modulus is extrapolated. Fracture Energy [J/m2] ..........: 6.13 Air Notched beam Fracture Toughness [MPa m1/2].....: 0.7 Air Notched beam Crack Growth Exponent [] .......: Elastic Modulus [GPa] ..........: 97.3 N2 liquid Fracture Energy [J/m2] ..........: 3.98 N2 liquid Controlled flaw Fracture Toughness [MPa m1/2].....: 0.88 N2 liquid Controlled flaw Crack Growth Exponent [] .......: Elastic Modulus [GPa] ..........: 97.3 Air Fracture Energy [J/m2] ..........: 3.57 Air Controlled flaw Fracture Toughness [MPa m1/2].....: 0.83 Air Controlled flaw