YOUNG'S MODULUS OF VARIOUS REFRACTORY MATERIALS AS A FUNCTION OF TEMPERATURE

Journal Article · Fri May 01 04:00:00 EDT 1959 · Journal of the American Ceramic Society (U.S.)

DOI:https://doi.org/10.1111/j.1151-2916.1959.tb15462.x· OSTI ID:4252220

Wachtman, Jr, J B; Lam, Jr, D G

Young's modulus as a function of temperature was determined by a dynamic method for single-crystal sapphire and ruby and for polycrystalline aluminum oxides ma~esium oxide, thorium oxides mullites spinel, stabilized zirconium oxides silicon carbides and nickelbonded titanium carbide. For the single crystals, Young's modulus was found to decrease linearly with increasing temperature from 100 C to the highest temperature of measurement. For all the polycrystalline materials, except silicon carbide, stabilized zirconium oxides and spinel, Young's modulus was found to decrease approximately linearly with increasing temperature until some temperature range characteristic of the material was reached in which Young's modulus decreased very rapidly and in a nonlinear manner with increasing temperature. This rapid decrease at high temperature is attributed to grain-boundary slip. Stabilized zirconium oxide and spinel were found to have the same rapid decrease in Young's modulus at high temperatures but they also had a decidedly nonlinear temperature dependence at low temperature. (auth)

• Research Organization: National Bureau of Standards, Washington, D.C.
• Sponsoring Organization: USDOE
• NSA Number: NSA-13-013765
• OSTI ID: 4252220
• Journal Information: Journal of the American Ceramic Society (U.S.), Journal Name: Journal of the American Ceramic Society (U.S.) Vol. Vol: 42; ISSN JACTA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ALUMINUM OXIDES
ALUMINUM SILICATES
CRYSTALS
ELASTICITY
GRAIN BOUNDARIES
ION EXCHANGE MATERIALS
MAGNESIUM OXIDES
MEASURED VALUES
MINERALS
MONOCRYSTALS
MULLITE
NICKEL COMPOUNDS
OXIDES
PHYSICS AND MATHEMATICS
QUANTITATIVE ANALYSIS
REFRACTION
RUBY
SAPPHIRE
SILICON CARBIDES
SPINELS
STABILITY
TEMPERATURE
THORIUM OXIDES
TITANIUM CARBIDES
YOUNG MODULUS
ZIRCONIUM OXIDES