P2O5 Base Glasses: P69a

About Property Data Summaries.

Reference: NBS Technical Note 1212

Other materials: Phosphate Glasses

Material Summary:

Molar composition: 69% P2O5 + 15% Al2O3 + 15% MgO + 2% La2O3 + Nd2O3

Property Summary:

Property                           Value  Environment  Notes
---------------------------------  -----  -----------  --------------------------------------
Crack Growth Exponent []   .......: 
Elastic Modulus [GPa]   ..........: 67.2   N2 gas     
Fracture Energy [J/m2]  ..........:  2.25  N2 gas     Indentation crack length
Fracture Toughness [MPa m1/2].....:  0.55  N2 gas     Indentation crack length


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Date created: 08 February 2001
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