Effects of neutron irradiation on thermal conductivity of SiC-based composites and monolithic ceramics

Journal Article · Mon Dec 30 23:00:00 EST 1996 · Fusion Technology

OSTI ID:447354

Senor, D J; Youngblood, G E ^[1]; Moore, C E ^[2]; Trimble, D J ^[3]; Newsome, G A; Woods, J J ^[4]

---

1. Pacific Northwest National Lab., Richland, WA (United States)
2. Auburn Univ., AL (United States)
3. Westinghouse Hanford Company, Richland, WA (United States)
4. Lockheed Martin, Schenectady, NY (United States)

A variety of SiC-based composites and monolithic ceramics were characterized by measuring their thermal diffusivity in the unirradiated, thermal annealed, and irradiated conditions over the temperature range 400 to 1000{degree}C. The irradiation was conducted in the FBR-II to doses of 33 and 43 dpa-SiC at a nominal temperature of 1000{degree}C. The annealed specimens were held at 1010{degree}C for 165 days to approximately duplicate the thermal exposure of the irradiated specimens. Thermal diffusivity was measured using the laser flash method, and was converted to thermal conductivity using density data and calculated specific heat values. 24 refs., 16 figs., 1 tab.

• DOE Contract Number: AC06-76RL01830
• OSTI ID: 447354
• Report Number(s): CONF-9606116--
• Journal Information: Fusion Technology, Journal Name: Fusion Technology Journal Issue: 3 Vol. 30; ISSN 0748-1896; ISSN FUSTE8
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ANNEALING
CERAMICS
CHEMICAL VAPOR DEPOSITION
COMPOSITE MATERIALS
EBR-2 REACTOR
FIBERS
IRRADIATION
NEUTRONS
NUMERICAL DATA
RADIATION EFFECTS
SILICON CARBIDES
THERMAL CONDUCTIVITY
THERMAL DIFFUSION
THERMONUCLEAR REACTOR MATERIALS