Ultrasonic characterization of porosity in advanced SiC ceramic composites
The particular material considered here was SiC fiber reinforced SiC matrix formed by chemical vapor infiltration (CVI). The initial focus was on porosity, which has been linked to the material strength. Ultrasonic attenuation and velocity were investigated since they were expected to be affected by the porosity in the material. The objectives of the study were to determine the capability of conventional methods to measure the ultrasonic properties of the materials, and develop improved methods where necessary; to determine the correlations between ultrasonic properties and material properties of interest; and to demonstrate the ability of the ultrasonic technique to nondestructively characterize ceramic composite components. 8 refs., 4 figs.
- Research Organization:
- EG and G Idaho, Inc., Idaho Falls (USA)
- DOE Contract Number:
- AC07-76ID01570
- OSTI ID:
- 6115565
- Report Number(s):
- EGG-M-10087; CONF-870856-5; ON: DE89011159
- Country of Publication:
- United States
- Language:
- English
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