Dynamic elastic modulus and vibration damping behavior of porous silicon carbide ceramics at elevated temperatures
Journal Article
·
· Journal of Materials Engineering and Performance
The piezoelectric ultrasonic composite oscillator technique (PUCOT) has been used to measure the Young's modulus, E, the mechanical damping, Q{sup {minus}1}, and the strain amplitude, {epsilon}, of a sintered silicon carbide containing pores (Hexoloy-SP). The silicon carbide material used in this study had at least 14 vol% porosity. Young's modulus was found to have a linear temperature dependence from room temperature to 740 C. The damping was near 10{sup {minus}4} and was independent of strain amplitude above room temperature.
- Research Organization:
- Texas A&M Univ., College Station, TX (US)
- OSTI ID:
- 20000468
- Journal Information:
- Journal of Materials Engineering and Performance, Journal Name: Journal of Materials Engineering and Performance Journal Issue: 5 Vol. 8; ISSN 1059-9495; ISSN JMEPEG
- Country of Publication:
- United States
- Language:
- English
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