GB1087497A - Canning for a nuclear fuel element - Google Patents
Canning for a nuclear fuel elementInfo
- Publication number
- GB1087497A GB1087497A GB20520/65A GB2052065A GB1087497A GB 1087497 A GB1087497 A GB 1087497A GB 20520/65 A GB20520/65 A GB 20520/65A GB 2052065 A GB2052065 A GB 2052065A GB 1087497 A GB1087497 A GB 1087497A
- Authority
- GB
- United Kingdom
- Prior art keywords
- diffusion
- layer
- alloy
- mgo
- fuel element
- 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
- G21C3/02—Fuel elements
- G21C3/04—Constructional details
- G21C3/16—Details of the construction within the casing
- G21C3/20—Details of the construction within the casing with coating on fuel or on inside of casing; with non-active interlayer between casing and active material with multiple casings or multiple active layers
-
- 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
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
- Monitoring And Testing Of Nuclear Reactors (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Solid Fuels And Fuel-Associated Substances (AREA)
Abstract
1,087,497. Fuel elements. COMMISSARIAT A L'ENERGIE ATOMIQUE. May 14, 1965 [May 26, 1964], No. 20520/65. Heading G6C. A fuel element can made of Mg-Zr alloy having a Zr content less than 1% by weight is provided on its inner surface with an antidiffusion layer of MgO and/or MgCOa and free C for preventing the diffusion of Pu through the can. Where the irradiation exceeds a threshold of some 1000 MWd/t, Mg-Zr alloy cans have reduced strength, in particular owing to the diffusion of the Pu formed when the fuel element is irradiated. This Pu diffusion also causes a disturbing contamination of the reactor fuel channels. The anti-diffusion layer of this invention is formed by heating the can in CO 2 gas at a pressure of from 1 to 60 kg./cm.<SP>2</SP> and at a temperature between ambient temperature and 550‹ C., for a period of from 10 to several hundred hours and long enough for the MgO and/or MgCO 3 to form but without effecting the structural and dimensional stability of the Mg-Zr alloy. Simultaneously there is a slight deposition of carbon. The working conditions determine whether the layer includes MgO, MgCO 3 , or both. The thickness of the layer is preferably between 0.1 and 25 microns.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR975890A FR1405324A (en) | 1964-05-26 | 1964-05-26 | Nuclear fuel element cladding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1087497A true GB1087497A (en) | 1967-10-18 |
Family
ID=8830899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB20520/65A Expired GB1087497A (en) | 1964-05-26 | 1965-05-04 | Canning for a nuclear fuel element |
Country Status (7)
| Country | Link |
|---|---|
| BE (1) | BE664047A (en) |
| CH (1) | CH436500A (en) |
| DE (1) | DE1240192B (en) |
| ES (1) | ES313408A1 (en) |
| FR (1) | FR1405324A (en) |
| GB (1) | GB1087497A (en) |
| LU (1) | LU48647A1 (en) |
-
1964
- 1964-05-26 FR FR975890A patent/FR1405324A/en not_active Expired
-
1965
- 1965-05-04 GB GB20520/65A patent/GB1087497A/en not_active Expired
- 1965-05-17 BE BE664047A patent/BE664047A/xx unknown
- 1965-05-19 CH CH698665A patent/CH436500A/en unknown
- 1965-05-20 LU LU48647A patent/LU48647A1/xx unknown
- 1965-05-25 ES ES0313408A patent/ES313408A1/en not_active Expired
- 1965-05-25 DE DEC35951A patent/DE1240192B/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| BE664047A (en) | 1965-09-16 |
| FR1405324A (en) | 1965-07-09 |
| CH436500A (en) | 1967-05-31 |
| LU48647A1 (en) | 1965-07-20 |
| ES313408A1 (en) | 1966-03-16 |
| DE1240192B (en) | 1967-05-11 |
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