SiO2 Base Glasses: S82a

About Property Data Summaries.

Reference: NBS Technical Note 1212

Other materials: Silicate Glasses

Material Summary:

Molar composition: 82.3% SiO2 + 1.21% Al2O3 + 12.4% B2O3 + 3.99% Na2O
Specific Material: 7740
Manufacturer: Corning Glass

Property Summary:

Property                           Value  Environment  Notes
---------------------------------  -----  -----------  --------------------------------------
Crack Growth Exponent []   .......:  
Elastic Modulus [GPa]   ..........: 63.7   N2 gas     
Fracture Energy [J/m2]  ..........:  4.63  N2 gas     Double cantilever beam 
Fracture Toughness [MPa m1/2].....:  0.77  N2 gas     Double cantilever beam

Crack Growth Exponent []   .......: 22.6   6N NaOH      Dynamic fatigue, surface cond.-abraded
Elastic Modulus [GPa]   ..........: 
Fracture Energy [J/m2]  ..........: 
Fracture Toughness [MPa m1/2].....:

Crack Growth Exponent []   .......: 35.1   H2O        Dynamic fatigue, surface cond.-abraded 
Elastic Modulus [GPa]   ..........: 
Fracture Energy [J/m2]  ..........: 
Fracture Toughness [MPa m1/2].....:

Crack Growth Exponent []   .......: 26.9   6N NaOH      Dynamic fatigue, surface cond.-abraded 
Elastic Modulus [GPa]   ..........: 
Fracture Energy [J/m2]  ..........: 
Fracture Toughness [MPa m1/2].....:
 
Crack Growth Exponent []   .......: 21.1   6N NaOH      Dynamic fatigue, surface cond.-acid
                                                       polished                                          
Elastic Modulus [GPa]   ..........: 
Fracture Energy [J/m2]  ..........: 
Fracture Toughness [MPa m1/2].....:

Crack Growth Exponent []   .......: 39.8   H2O        Dynamic fatigue, surface cond.-acid
                                                       polished 
Elastic Modulus [GPa]   ..........: 
Fracture Energy [J/m2]  ..........: 
Fracture Toughness [MPa m1/2].....:

Crack Growth Exponent []   .......: 64.9   6N HCl       Dynamic fatigue, surface cond.-acid
                                                       polished 
Elastic Modulus [GPa]   ..........: 
Fracture Energy [J/m2]  ..........: 
Fracture Toughness [MPa m1/2].....:

Crack Growth Exponent []   .......: 34.1   H2O        Double cantilever beam 
Elastic Modulus [GPa]   ..........: 
Fracture Energy [J/m2]  ..........: 
Fracture Toughness [MPa m1/2].....:

Crack Growth Exponent []   .......: 22.7   6N NaOH      Double cantilever beam 
Elastic Modulus [GPa]   ..........: 
Fracture Energy [J/m2]  ..........: 
Fracture Toughness [MPa m1/2].....:

Crack Growth Exponent []   .......: 57     6N HCl       Double cantilever beam
Elastic Modulus [GPa]   ..........: 
Fracture Energy [J/m2]  ..........: 
Fracture Toughness [MPa m1/2].....:

Crack Growth Exponent []   .......: 16     Air,100% RH  Dynamic fatigue, surface cond.-abraded
Elastic Modulus [GPa]   ..........: 
Fracture Energy [J/m2]  ..........: 
Fracture Toughness [MPa m1/2].....:

Crack Growth Exponent []   .......: 22     Air,100% RH  Dynamic fatigue, surface cond.-acid
                                          polished
Elastic Modulus [GPa]   ..........: 
Fracture Energy [J/m2]  ..........: 
Fracture Toughness [MPa m1/2].....:

Crack Growth Exponent []   .......: 27.4   Air,100% RH  Dynamic fatigue, surface cond.-acid
                                          polished
Elastic Modulus [GPa]   ..........: 
Fracture Energy [J/m2]  ..........: 
Fracture Toughness [MPa m1/2].....:

Crack Growth Exponent []   .......: 35.5   H2O        Double cantilever beam
Elastic Modulus [GPa]   ..........: 
Fracture Energy [J/m2]  ..........: 
Fracture Toughness [MPa m1/2].....:


Privacy Statement/Security Notice
Disclaimer | FOIA

NIST is an agency of the
U.S. Commerce Department

Date created: 08 February 2001
Last updated: 08 February 2001

Technical inquiries:
Ceramics Division
NIST, 100 Bureau Drive, Stop 8520, Gaithersburg, MD 20899-8520.
Phone (301) 975-6119
Fax (301) 975-5334

Ceramics website comments:
Ceramics Webmaster

General NIST inquiries:
Public Inquiries Unit:
Phone (301) 975-NIST (6478)
TTY (301) 975-8295