Carbon--silicon coating alloys for improved irradiation stability
Patent
·
OSTI ID:4386076
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
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
*FUEL PARTICLES-- COATINGS
*SILICON CARBIDES-- DEPOSITION
FAST NEUTRONS
FISSION PRODUCTS
HELIUM
N50120* --Metals
Ceramics
& Other Materials--Ceramics & Cermets--Preparation & Fabrication
N79300 --Reactors--Reactor Fuels
NEUTRON BEAMS
PATENTS
PHYSICAL RADIATION EFFECTS
PROPANE
SHRINKAGE
SILANES
VERY HIGH TEMPERATURE
*SILICON CARBIDES-- DEPOSITION
FAST NEUTRONS
FISSION PRODUCTS
HELIUM
N50120* --Metals
Ceramics
& Other Materials--Ceramics & Cermets--Preparation & Fabrication
N79300 --Reactors--Reactor Fuels
NEUTRON BEAMS
PATENTS
PHYSICAL RADIATION EFFECTS
PROPANE
SHRINKAGE
SILANES
VERY HIGH TEMPERATURE