GB1295251A - - Google Patents
Info
- Publication number
- GB1295251A GB1295251A GB3828969A GB1295251DA GB1295251A GB 1295251 A GB1295251 A GB 1295251A GB 3828969 A GB3828969 A GB 3828969A GB 1295251D A GB1295251D A GB 1295251DA GB 1295251 A GB1295251 A GB 1295251A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sheath
- coating
- decomposition
- fuel
- group
- 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
- 239000011248 coating agent Substances 0.000 abstract 4
- 238000000576 coating method Methods 0.000 abstract 4
- 229910052751 metal Inorganic materials 0.000 abstract 4
- 239000002184 metal Substances 0.000 abstract 4
- 239000000446 fuel Substances 0.000 abstract 3
- 238000000354 decomposition reaction Methods 0.000 abstract 2
- 238000009792 diffusion process Methods 0.000 abstract 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 abstract 1
- 229910045601 alloy Inorganic materials 0.000 abstract 1
- 239000000956 alloy Substances 0.000 abstract 1
- 230000004888 barrier function Effects 0.000 abstract 1
- 229910052799 carbon Inorganic materials 0.000 abstract 1
- 239000000356 contaminant Substances 0.000 abstract 1
- 239000002826 coolant Substances 0.000 abstract 1
- 229910052802 copper Inorganic materials 0.000 abstract 1
- 238000009713 electroplating Methods 0.000 abstract 1
- 229910052741 iridium Inorganic materials 0.000 abstract 1
- 150000002739 metals Chemical class 0.000 abstract 1
- 229910052750 molybdenum Inorganic materials 0.000 abstract 1
- 239000011733 molybdenum Substances 0.000 abstract 1
- 230000001681 protective effect Effects 0.000 abstract 1
- 229910052702 rhenium Inorganic materials 0.000 abstract 1
- 229910052707 ruthenium Inorganic materials 0.000 abstract 1
- 229910052709 silver Inorganic materials 0.000 abstract 1
- 238000004901 spalling Methods 0.000 abstract 1
- 239000010935 stainless steel Substances 0.000 abstract 1
- 229910001220 stainless steel Inorganic materials 0.000 abstract 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 abstract 1
- 229910052721 tungsten Inorganic materials 0.000 abstract 1
- 239000010937 tungsten Substances 0.000 abstract 1
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
- G21C3/06—Casings; Jackets
- G21C3/07—Casings; Jackets characterised by their material, e.g. alloys
-
- 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)
- Metallurgy (AREA)
- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
Abstract
1295251 Fuel elements UNITED KING- DOM ATOMIC ENERGY AUTHORITY 13 Oct 1970 [30 July 1969] 38289/69 Heading G6C A fuel element for a CO 2 -cooled nuclear reactor has the fuel enclosed in a protective metal (e.g. stainless steel) sheath, the outer surface of which has a coating of a metal selected from the group: Cu, Ag, Au, Rh, Ir, Ru and Re, or of an alloy of two or more metals in the group. The use of such a coating at least reduces and possibly suppresses altogether the spalling of oxides from the sheath, and provides a surface which will not catalyse the decomposition of organic contaminants in the coolant, which decomposition .would give rise to a deposit of free carbon on the sheath and affect heat transfer. The coating may be applied by electroplating, a thickness of about 0.0005 inch being satisfactory. Diffusion between the sheath and the coating is preferably inhibited by the provision of a diffusion barrier between the two as, for example, by preoxidizing the sheath or by providing aprecoating of a non-diffusible metal such as molybdenum or tungsten.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3828969 | 1969-07-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1295251A true GB1295251A (en) | 1972-11-08 |
Family
ID=10402486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3828969A Expired GB1295251A (en) | 1969-07-30 | 1969-07-30 |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1295251A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2317372A1 (en) * | 1975-06-26 | 1977-02-04 | Gen Electric | PROCESS FOR IMPROVING THE CORROSION RESISTANCE OF ZIRCONIUM ALLOY PARTS AND PARTS THUS OBTAINED. |
| US4411861A (en) * | 1977-08-19 | 1983-10-25 | Kraftwerk Union Aktiengesellschaft | Method for protecting the casing tubes of nuclear reactor fuel rods |
| WO1997001173A1 (en) * | 1995-06-23 | 1997-01-09 | General Electric Company | Insulated protective coating doped with a noble metal for mitigation of stress corrosion cracking |
-
1969
- 1969-07-30 GB GB3828969A patent/GB1295251A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2317372A1 (en) * | 1975-06-26 | 1977-02-04 | Gen Electric | PROCESS FOR IMPROVING THE CORROSION RESISTANCE OF ZIRCONIUM ALLOY PARTS AND PARTS THUS OBTAINED. |
| US4411861A (en) * | 1977-08-19 | 1983-10-25 | Kraftwerk Union Aktiengesellschaft | Method for protecting the casing tubes of nuclear reactor fuel rods |
| WO1997001173A1 (en) * | 1995-06-23 | 1997-01-09 | General Electric Company | Insulated protective coating doped with a noble metal for mitigation of stress corrosion cracking |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |