SINGLE CRYSTAL ALUMINA BY THE STRAIN-ANNEAL TECHNIQUE.
Abstract
Single crystals of Al2O3 were grown by the strain-anneal technique to a maximum size of 7 cubic centimeters. All the crystals contained a small percentage of porosity, and cracking at the boundary of the polycrystalline region also appeared to be an experimental difficulty. The critical strain for producing few growth nuclei, and thus enhanced single crystal growth, is thought to be approximately 5%. Evidence was obtained for the removal of porosity during grain growth accompanying primary recrystallization. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 24, 1966
- Accession Number
- AD0635694
Entities
People
- D. J. Sellers
- T. Vasilos
- W. H. Rhodes