Moisture assisted crack growth in ceramics
โ Scribed by S. M. Wiederhorn
- Publisher
- Springer Netherlands
- Year
- 1968
- Tongue
- English
- Weight
- 395 KB
- Volume
- 4
- Category
- Article
- ISSN
- 1573-2673
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โฆ Synopsis
A method is described to study subcritical crack growth in ceramic materials. Large, macroscopic size cracks were used and quantitative crack velocity measurements were made on glass and sapphire as a function of applied force, temperature and environment. The measured crack velocity was a complex function of stress and water vapor concentration in the environment and portions of the data could be adequately explained by the stress corrosion theory of Charles and Hillig.
๐ SIMILAR VOLUMES
The indentation crack has been used as a model of surface flaw in the strength tests of ceramics. In evaluation of such strength properties, some attention should be paid to the residual stress effect due to indentation. In this study, fatigue crack growth behavior from indentation flaws was investi