The Brittle Fracture of Alloyed Alumina.
Abstract
The report concludes a study investigating the thesis that fracture of alumina below 1000C is controlled by dislocation movement, e.g. some plastic deformation is involved in the fracture process. Experimental approach involved inducing barriers to dislocation movement by alloying to effect solid solution hardening, precipitation hardening and non-stoichiometric conditions. Single and polycrystalline alumina samples doped with Cr and Ti were used. The influence of air and vacuum annealing was studied. Testing included four point bend, microhardness, X-ray and magnetic susceptibility. (Modified author abstract)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1973
- Accession Number
- AD0771143
Entities
People
- J. P. Chubb
- N. J. Petch
Organizations
- Newcastle University