Surface Failure of CO2 Laser Irradiated Glass
Abstract
The possibility of failure of laser heated glass has important implications in experiments on the thermal shock resistance of materials and in the potential applications of lasers to the machining and heat treating of glass. We describe a method of measuring the damage probability distribution function for laser irradiated glass and develop a model to predict the temperature and stress distributions as a function of time. The experiments and model show that for CO2 laser pulse lengths inferior to 1 ms, the mode of failure is by fracture under tensile stress induced during cooling after heating a thin layer near the surface beyond the annealing point. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 1981
- Accession Number
- ADA105454
Entities
People
- J. C. Anctil
- R. W. Macpherson