STUDY OF COMBINATIONS OF HIGH AND LOW ELASTIC MODULUS CERAMIC MATERIALS. Sixth Quarterly Report, June 15-September 15, 1961

Technical Report · Mon Sep 18 04:00:00 EDT 1961

OSTI ID:4833592

Shaffer, P T.B.; Hasselman, D P.H.

Additional property values were obtained for the composite bodies of ZrC- graphite SiC -graphite during the report period. Thermal shock tests on spheres composed of ZrC-graphite were carried out using a radiationconvection boundary condition. The actual volume fraction of graphite in the ZrC-graphite composites is being determined by metallographic means. Calculations were made of the maximum thermal stress, time of maximum stress, and the center, surface and mean temperature at the time of maximum stress in a spherical body subjected to transient thermal shock. On the basis of these calculations the predicted thermal shock behavior of spherical shapes as investigated by Crandall and Ging were recalculated. To simplify these calculations a graphical method was devised. Good agreement with experimental values was obtained. (auth)

• Research Organization: Carborundum Co. Research and Development Div., Niagara Falls, N.Y.
• NSA Number: NSA-15-031188
• OSTI ID: 4833592
• Report Number(s): NP-10723
• Country of Publication: United States
• Language: English

Related Subjects

CERAMICS
CONVECTION
DIAGRAMS
EFFICIENCY
ELASTICITY
GRAPHITE
MATERIALS TESTING
METALLOGRAPHY
METALS, CERAMICS, AND OTHER MATERIALS
NUMERICALS
QUANTITATIVE ANALYSIS
RADIATIONS
SILICON CARBIDES
SPHERES
SURFACES
TEMPERATURE
THERMAL STRESSES
VOLUME
ZIRCONIUM CARBIDES