Thermal shock behavior of fiber-reinforced composites
- Cincinnati Univ., OH (United States). Dept. of Materials Science and Engineering
- Oak Ridge National Lab., TN (United States)
The thermal shock behavior of three types of continuous fiber-reinforced ceramic composites (Nextel{trademark} or Nicalon{trademark} fiber-reinforced chemical vapor infiltrated or polymer-derived SiC matrix composites) was studied using the water quench technique. The thermal shock induced damage was characterized by both destructive and nondestructive techniques. As compared with monolithic ceramics, the continuous fiber-reinforced ceramic composites were capable of preventing catastrophic failure caused by thermal shock and were able to retain a significant portion of their original strength at {Delta}{Tau} = 1000{degrees}C. The nondestructive techniques involved measuring the thermal diffusivity by the flash technique and determining the Young`s modulus by the dynamic resonance method. It has been demonstrated that these nondestructive techniques can detect damage induced by thermal shock and are more sensitive in detecting damage in the early stage than the conventional destructive technique of measuring the retained strength.
- Research Organization:
- Oak Ridge National Lab., TN (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC05-84OR21400
- OSTI ID:
- 10118099
- Report Number(s):
- CONF-9504124-1; ON: DE95006746
- Resource Relation:
- Conference: 96. annual meeting and exposition of the American Ceramic Society (ACerS),Indianapolis, IN (United States),24-28 Apr 1995; Other Information: PBD: [1995]
- Country of Publication:
- United States
- Language:
- English
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