MECHANICAL PROPERTIES OF SILICON CARBIDE SINGLE CRYSTALS. Final Report, May 12, 1961-August 12, 1962

Technical Report · Sat Sep 01 04:00:00 EDT 1962

OSTI ID:4782790

Batha, H D; Hasselman, D P.H.

Results are reported from an investigation of the meof silicon carbide. Equipment was designed to deform the crystals in bending by three-point loading. Preliminary results for Young's modulus of elasticity and crossbending strength are reported. Values of strength as high as one million psi were obtained. A correlation was found between sample thickness and strength. The strength at 1750 deg C considerably exceeds the strength at room temperature. No evidence of gross plastic deformation under mechanical load was found as high as 1800 deg C. Some observations were made of dislocation motion during etching at 900 deg C in borax. (auth)

• Research Organization: Carborundum Co. Research and Development Div., Niagara Falls, N.Y.
• NSA Number: NSA-16-030795
• OSTI ID: 4782790
• Report Number(s): NP-12049
• Country of Publication: United States
• Language: English

Related Subjects

BORATES
BORAX
DEFECTS
DEFORMATION
DISLOCATIONS
DUCTILITY
ELASTICITY
ETCHING
HIGH TEMPERATURE
LABORATORY EQUIPMENT
MATERIALS TESTING
MECHANICAL PROPERTIES
METALS, CERAMICS, AND OTHER MATERIALS
MONOCRYSTALS
PLANNING
PRESSURE
SAMPLING
SILICON CARBIDES
SODIUM COMPOUNDS
TEMPERATURE
TENSILE PROPERTIES
THICKNESS
VAPORS
YOUNG MODULUS