GB955462A - Graphite coating of fuel particles - Google Patents
Graphite coating of fuel particlesInfo
- Publication number
- GB955462A GB955462A GB39561/62A GB3956162A GB955462A GB 955462 A GB955462 A GB 955462A GB 39561/62 A GB39561/62 A GB 39561/62A GB 3956162 A GB3956162 A GB 3956162A GB 955462 A GB955462 A GB 955462A
- Authority
- GB
- United Kingdom
- Prior art keywords
- particles
- cylinder
- fuel particles
- graphite
- temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C3/00—Reactor fuel elements and their assemblies; Selection of substances for use as reactor fuel elements
- G21C3/42—Selection of substances for use as reactor fuel
- G21C3/58—Solid reactor fuel Pellets made of fissile material
- G21C3/62—Ceramic fuel
- G21C3/626—Coated fuel particles
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Carbon And Carbon Compounds (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
Nuclear fuel particles, e.g. U or Th oxides or carbides, are coated with pyrolytic graphite by the thermal decomposition of a hydrocarbon gas in the presence of the particles to be coated at a temperature between 1500 DEG and 3000 DEG C. and a pressure of between 1 mm. and 200 mm. of mercury. For example, 30 gm. of uranium dicarbide in the shape of spherical particles of diameters between 177 and 250 microns are charged into a hollow graphite cylinder which is filled with argon at a pressure of 20 mm. of mercury and rotated about its longitudinal axis at a speed of 30 r.p.m. while its temperature is raised to 1700 DEG C. by means of a surrounding induction coil, methane being introduced into the cylinder at a rate of 0.2 litre/min. After 4 hours of processing, the methane supply is shut off and the cylinder allowed to cool to room temperature, the particles then having a graphite coating of average thickness about 80 microns. The nuclear fuel particles are kept in constant motion, e.g. by one or more rotating blades or wipers, or by suitably vibrating the container holding the particle charge. Alternatively, fluid bed or moving bed techniques may be employed.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US16766862A | 1962-01-22 | 1962-01-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB955462A true GB955462A (en) | 1964-04-15 |
Family
ID=22608293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB39561/62A Expired GB955462A (en) | 1962-01-22 | 1962-10-19 | Graphite coating of fuel particles |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE1471204A1 (en) |
| GB (1) | GB955462A (en) |
-
1962
- 1962-10-19 GB GB39561/62A patent/GB955462A/en not_active Expired
-
1963
- 1963-01-22 DE DE19631471204 patent/DE1471204A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE1471204A1 (en) | 1969-04-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB878927A (en) | Improvements in or relating to nuclear fuel materials | |
| ES8801471A1 (en) | Process for coating the internal surface of a metal tube with a neutron absorber. | |
| GB788284A (en) | Improvements in or relating to nuclear reactors | |
| GB1311715A (en) | Process for the production of fuel and or breeder elements for nuclear reactors | |
| GB1121892A (en) | Fuel or breeding element for a nuclear reactor | |
| GB955462A (en) | Graphite coating of fuel particles | |
| GB1388965A (en) | Nuclear fuel for high temperature gas-cooled reactors | |
| FR1455604A (en) | Nuclear fuel particles with pyrolytic coating and method and apparatus for producing such particles | |
| GB943719A (en) | Graphite coating of fuel particles | |
| GB979128A (en) | Dispersion of nuclear fuel materials within a graphite matrix | |
| GB1289917A (en) | ||
| US3293332A (en) | Process for fabricating a fission product retentive nuclear fuel body | |
| GB1395561A (en) | Process for the production of spherical metal oxide or metal carbide particles | |
| US4022660A (en) | Coated particles | |
| GB1151826A (en) | Fluid Valve Assembly. | |
| GB942073A (en) | Improvements relating to the production of hollow articles or components formed of or coated with silicon carbide | |
| ES414511A1 (en) | Nuclear fuel element | |
| GB1017089A (en) | Process for coating powder reactor fuels with carbon | |
| GB1386689A (en) | Control member for a nuclear reactor | |
| GB1328249A (en) | Process for manufacturing porous beta silicon-carbide articles | |
| GB1199130A (en) | Method for the Production of Nuclear Fuel | |
| US3378498A (en) | Process for diffusing metal into a refractory or ceramic oxide using a nitrate promoter | |
| GB1227505A (en) | ||
| ES405547A1 (en) | Apparatus for measuring the local neutron density distribution in the interior of a nuclear reactor | |
| GB1144320A (en) | Improvements in entrained fluidized bed coating apparatus and method thereof |