Radiation-induced density changes and creep in surface layers of glass
When glass surfaces are bombarded by energetic charged particles, radiation-induced density changes happen within the damaged surface layer. As a result of the lateral constraints imposed by the undamaged substrate material, stresses are also generated within the damaged layer. A detailed analysis of the stress evolution is given together with an analysis of the surface displacement and the bending of plate-like specimens bombarded from one side. The damaged material is assumed to deform as a viscoelastic material with a power-law stress dependence. The results of this analysis are applied to earlier experimental results in order to extract creep parameters which describe this viscoelastic and radiation-induced deformation in hydrogen-free vitreous silica.
- Research Organization:
- Sandia National Labs., Livermore, CA (USA)
- Sponsoring Organization:
- DOE/DP
- DOE Contract Number:
- AC04-76DP00789
- OSTI ID:
- 7072237
- Report Number(s):
- SAND-90-8200; ON: DE90008112
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
360603 -- Materials-- Properties
360605* -- Materials-- Radiation Effects
CHALCOGENIDES
CREEP
DEFORMATION
DENSITY
ELECTRONS
ELEMENTARY PARTICLES
FERMIONS
GLASS
LAYERS
LEPTONS
MECHANICAL PROPERTIES
MINERALS
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
PHYSICAL RADIATION EFFECTS
RADIATION EFFECTS
SILICA
SILICON COMPOUNDS
SILICON OXIDES
STRESSES
SURFACE PROPERTIES