A STUDY OF FUNDAMENTAL MECHANICAL PROPERTIES OF CERAMIC SINGLE CRYSTALS.
Abstract
The object of this investigation has been to study the factors influencing the strength of silicon carbide single crystals and to develop methods of producing extremely strong crystals of predicable strength. Using platelet crystals, cut to desired lengths and widths and having uniform thicknesses, it was possible to account for 81 percent of the variations in fracture loads using the am equation derived from test data. Various abrasive and chemical treatments were employed to modify crystals were tested at 1750 C. Immersion in molten cryolite for 5 to 10 minutes and heating seem to improve strength, but with the exception of a few crystals, no crystals exhibited bend strengths over 150,000 psi. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 12, 1964
- Accession Number
- AD0437383
Entities
People
- R. S. Liebling