Abstract
The decrease in the fracture strength of alumina ceramics at room temperature has usually been assumed to be caused by the effect of stress corrosion. However, at high temperatures, a viscous deformation will occur due to a glass-like phase which exists in the grain boundary. A study of the relation of the fracture strength of an alumina ceramics smooth specimen at room temperature to the visco-elastic property was performed. Mechanical tests and visco-elastic analysis, has shown that the fracture strength of this kind is controlled by the visco-elasticity.
Original language | English |
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Pages (from-to) | 3347-3352 |
Number of pages | 6 |
Journal | Journal of Materials Science |
Volume | 28 |
Issue number | 12 |
DOIs | |
Publication status | Published - 1993 Jun |
Externally published | Yes |
ASJC Scopus subject areas
- Materials Science(all)
- Mechanics of Materials
- Mechanical Engineering