Effect of surface corrosion on glass fracture

Conference · Mon Dec 31 23:00:00 EST 1984

OSTI ID:6083851

Bunker, B C; Michalske, T A

The nature of aqueous corrosion reactions on glass surfaces varies with glass composition and environmental conditions. We have shown how the physical effects of the various surface reactions can be incorporated into simple fracture mechanics models to predict measured crack velocity effects in silicate glasses. Reactions on glass surfaces are divided into four categories: bond rupture reactions, alteration layer formation, surface deposition, and intermolecular surface forces. These results demonstrate the effect of chemical reaction mechanisms on the long-term mechanical behavior of glasses.

• Research Organization: Sandia National Labs., Albuquerque, NM (USA)
• DOE Contract Number: AC04-76DP00789
• OSTI ID: 6083851
• Report Number(s): SAND-86-0582C; CONF-8506128-4; ON: DE86008404
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360603 -- Materials-- Properties
360604* -- Materials-- Corrosion
Erosion
& Degradation
AQUEOUS SOLUTIONS
CHALCOGENIDES
CHEMICAL REACTIONS
CORROSION
CRACK PROPAGATION
DEPOSITION
DISPERSIONS
FAILURES
FRACTURE PROPERTIES
FRACTURES
GLASS
LAYERS
MECHANICAL PROPERTIES
MINERALS
MIXTURES
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
SILICA
SILICON COMPOUNDS
SILICON OXIDES
SOLUTIONS
STRESS INTENSITY FACTORS
SURFACES