SiO2 Base Glasses: S64a

About Property Data Summaries.

Reference: NBS Technical Note 1212

Other materials: Silicate Glasses

Material Summary:

Molar composition: 64.5% SiO2 + 7.15% Na2O + 28.2% PbO
Specific Material: SF-1
Manufacturer: Schott

Property Summary:

Property                           Value  Environment  Notes
---------------------------------  -----  -----------  --------------------------------------
Crack Growth Exponent []   .......: 
Elastic Modulus [GPa]   ..........:    
Fracture Energy [J/m2]  ..........:  
Fracture Toughness [MPa m1/2].....:  0.85  Vacuum       Double cantilever beam
                                    0.84  Vacuum       Notched beam

Crack Growth Exponent []   .......: 38     Air,100% RH  Double cantilever beam
Elastic Modulus [GPa]   ..........:     
Fracture Energy [J/m2]  ..........: 
Fracture Toughness [MPa m1/2].....:


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Date created: 08 February 2001
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