Carbon--silicon coating alloys for improved irradiation stability

Patent · Mon Oct 01 00:00:00 EDT 1973

OSTI ID:4386076

Bokros, J C

For ceramic nuclear fuel particles, a fission product-retaining carbon-- silicon alloy coating is described that exhibits low shrinkage after exposure to fast neutron fluences of 1.4 to 4.8 x 10/sup 21/ n/cm/sup 2/ (E = 0.18 MeV) at irradiation temperatures from 950 to 1250 deg C. Isotropic pyrolytic carbon containing from 18 to 34 wt% silicon is co-deposited from a gaseous mixiure of propane, helium, and silane at a temperature of 1350 to 1450 deg C. (Official Gazette)

• Research Organization: Originating Research Org. not identified
• NSA Number: NSA-29-005414
• Assignee: to United States Atomic Energy Commission
• Patent Number(s): US 3764469
• OSTI ID: 4386076
• Resource Relation: Patent File Date: 1972 Mar 24; Other Information: G21c3/06. Orig. Receipt Date: 30-JUN-74
• Country of Publication: United States
• Language: English

Related Subjects

N50120* -Metals
Ceramics
& Other Materials-Ceramics & Cermets-Preparation & Fabrication
N79300 -Reactors-Reactor Fuels
*FUEL PARTICLES- COATINGS
*SILICON CARBIDES- DEPOSITION
FAST NEUTRONS
FISSION PRODUCTS
HELIUM
NEUTRON BEAMS
PATENTS
PHYSICAL RADIATION EFFECTS
PROPANE
SHRINKAGE
SILANES
VERY HIGH TEMPERATURE