SiO2 Base Glasses: S67b

About Property Data Summaries.

Reference: NBS Technical Note 1212

Other materials: Silicate Glasses

Material Summary:

Molar composition: 67% SiO2 + 33% Na2O

Property Summary:

Property                           Value  Environment  Notes
---------------------------------  -----  -----------  --------------------------------------
Crack Growth Exponent []   .......: 
Elastic Modulus [GPa]   ..........: 89.0   N2 liquid  
Fracture Energy [J/m2]  ..........:  7.0   N2 liquid  Double cantilever beam
Fracture Toughness [MPa m1/2].....:  1.12  N2 liquid  Double cantilever beam

Crack Growth Exponent []   .......: 21     D.I. H2O   Double cantilever beam
Elastic Modulus [GPa]   ..........:   
Fracture Energy [J/m2]  ..........: 
Fracture Toughness [MPa m1/2].....: 

Crack Growth Exponent []   .......: 21     IM Cs in     Double cantilever beam
                                          D.I. H2O
Elastic Modulus [GPa]   ..........:   
Fracture Energy [J/m2]  ..........: 
Fracture Toughness [MPa m1/2].....:  

Crack Growth Exponent []   .......: 30     IM Cs in     Double cantilever beam
                                          D.I. H2O 
Elastic Modulus [GPa]   ..........:   
Fracture Energy [J/m2]  ..........: 
Fracture Toughness [MPa m1/2].....:  

Crack Growth Exponent []   .......: 93     Air, 30% 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
Last updated: 08 February 2001

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