B2O3 Base Glasses: B94a

About Property Data Summaries.

Reference: NBS Technical Note 1212

Other materials: Borate Glasses

Material Summary:

Molar composition: 94.3% B2O3 + 5.62% PbO

Property Summary:

Property                           Value  Environment  Notes
---------------------------------  -----  -----------  --------------------------------------
Crack Growth Exponent []   .......: 
Elastic Modulus [GPa]   ..........: 
Fracture Energy [J/m2]  ..........:  
Fracture Toughness [MPa m1/2].....:  0.78  Air          Indentation crack length
                                    0.84  Air          Notched beam

Crack Growth Exponent []   .......:
Elastic Modulus [GPa]   ..........: 22.3   Air             
Fracture Energy [J/m2]  ..........: 17.36  Air          Indentation crack length
                                   16.20  Air          Notched Beam
Fracture Toughness [MPa m1/2].....:  0.88  Air          Indentation crack length
                                    0.85  Air          Notched Beam


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Date created: 08 February 2001
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