Delayed Failure of Polycrystalline and Single Crystal Alumina
Abstract
The investigations were concerned with the effects of water vapor and temperature on the long-term mechanical strengths of alumina ceramics. Mechanical tests were therefore made over a large temperature range (-196 to 1100C) in dry, humid, and saturated atmospheres. A fatigue theory involving stress corrosion of an elastic continuum has been applied to the low-temperature experimental data on sapphire. Reasonible values for the parameters involved in the theory were obtained.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1962
- Accession Number
- AD0782277
Entities
People
- R. J. Charles
- R. R. Shaw
Organizations
- General Electric