SiO2 Base Glasses: S83a

About Property Data Summaries.

Reference: NBS Technical Note 1212

Other materials: Silicate Glasses

Material Summary:

Molar composition: 83.2% SiO2 + 1.21% Al2O3 + 11.5% B2O3 + 3.98% Na2O
Specific Material: 7740
Manufacturer: Corning Glass

Property Summary:

Property                           Value  Environment  Notes
---------------------------------  -----  -----------  --------------------------------------
Crack Growth Exponent []   .......: 
Elastic Modulus [GPa]   ..........: 
Fracture Energy [J/m2]  ..........: 
Fracture Toughness [MPa m1/2].....:  0.76  Vacuum       Double cantilever beam
                                    0.78  Vacuum       Notched beam


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Date created: 08 February 2001
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