Claims
- 1. Nuclear reactor fuel assembly in the form of a metallic component for a nuclear power plant, comprising fuel rods containing nuclear fuel, structural parts formed of zirconium or a zirconium alloy in the form of cladding tubes of the fuel rods for the nuclear fuel and spacer grids for the fuel rods, said structural parts having surfaces coming into contact with a water or liquid sodium coolant, and a coating from the group consisting of titanium carbide (TiC), titanium nitride (TiN), zirconium nitride (ZrN), chromium carbide (CrC), titanium aluminum vanadium nitride (TiAlVN), tantalum nitride (TaN), zirconium carbide (ZrC) and tungsten carbide (WC) disposed on the surfaces of said structural parts.
- 2. Fuel assembly according to claim 1, wherein said coating has a thickness of substantially from 0.1 to 20 .mu.m.
- 3. Fuel assembly according to claim 1, wherein said coating has a thickness of substantially from 0.1 to 3 .mu.m.
- 4. Fuel assembly according to claim 1, wherein said coating has a thickness of substantially from 2 to 20 .mu.m.
- 5. Nuclear reactor fuel assembly in the form of a metallic component for a nuclear power plant, comprising fuel rods containing nuclear fuel, structural parts formed of zirconium or a zirconium alloy, said structural parts having surfaces coming into contact with a water or liquid sodium coolant, and a coating from the group consisting of titanium carbide, (TiC) disposed on the surfaces of said structural parts.
- 6. Fuel assembly according to claim 5, wherein said structural parts are cladding tubes of the fuel rods for the nuclear fuel.
- 7. Fuel assembly according to claim 5, wherein said structural parts are spacer grids for the fuel rods.
- 8. Fuel assembly according to claim 5, wherein said coating has a thickness of substantially from 0.1 to 20 .mu.m.
- 9. Fuel assembly according to claim 5, wherein said coating has a thickness of substantially from 0.1 to 3 .mu.m.
- 10. Fuel assembly according to claim 5, wherein said coating has a thickness of substantially from 2 to 20 .mu.m.
- 11. Nuclear reactor fuel assembly in the form of a metallic component for a nuclear power plant, comprising fuel rods containing nuclear fuel, structural parts formed of zirconium or a zirconium alloy, said structural parts having surfaces coming into contact with a water of liquid sodium coolant, and a coating of titanium nitride (TiN) disposed on the surfaces of said structural parts.
- 12. Fuel assembly according to claim 11, wherein said structural parts are cladding tubes of the fuel rods for the nuclear fuel.
- 13. Fuel assembly according to claim 11, wherein said structural parts are spacer grids for the fuel rods.
- 14. Fuel assembly according to claim 11, wherein said coating has a thickness of substantially from 0.1 to 20 .mu.m.
- 15. Fuel assembly according to claim 11, wherein said coating has a thickness of substantially from 0.1 to 3 .mu.m.
- 16. Fuel assembly according to claim 11, wherein said coating has a thickness of substantially from 2 to 20 .mu.m.
- 17. Nuclear reactor fuel assembly in the form of a metallic component for a nuclear power plant, comprising fuel rods containing nuclear fuel, structural parts formed of zirconium or a zirconium alloy, said structural parts having surfaces coming into contact with a water or liquid sodium coolant, and a coating of titanium aluminum vanadium nitride (TiAlVN) disposed on the surfaces of said structural parts.
- 18. Fuel assembly according to claim 17, wherein said structural parts are cladding tubes of the fuel rods for the nuclear fuel.
- 19. Fuel assembly according to claim 17, wherein said structural parts are spacer grids for the fuel rods.
- 20. Fuel assembly according to claim 17, wherein said coating has a thickness of substantially from 0.1 to 20 .mu.m.
- 21. Fuel assembly according to claim 17, wherein said coating has a thickness of substantially from 0.1 to 3 .mu.m.
- 22. Fuel assembly according to claim 17, wherein said coating has a thickness of substantially from 2 to 20 .mu.m.
- 23. Nuclear reactor fuel assembly in the form of a metallic component for a nuclear power plant, comprising fuel rods containing nuclear fuel, structural parts formed of zirconium or a zirconium alloy, said structural parts having surfaces coming into contact with a water or liquid sodium coolant, and a coating of tantalum nitride (TaN) disposed on the surfaces of said structural parts.
- 24. Fuel assembly according to claim 23, wherein said structural parts are cladding tubes of the fuel rods for the nuclear fuel.
- 25. Fuel assembly according to claim 23, wherein said structural parts are spacer grids for the fuel rods.
- 26. Fuel assembly according to claim 23, wherein said coating has a thickness of substantially from 0.1 to 20 .mu.m.
- 27. Fuel assembly according to claim 23, wherein said coating has a thickness of substantially from 0.1 to 3 .mu.m.
- 28. Fuel assembly according to claim 23, wherein said coating has a thickness of substantially from 2 to 20 .mu.m.
- 29. Nuclear reactor fuel assembly in the form of a metallic component for a nuclear power plant, comprising fuel rods containing nuclear fuel, structural pars formed of zirconium or a zirconium alloy, said structural parts having surfaces coming into contact with a water or liquid sodium coolant, and a coating of zirconium carbide (ZrC) disposed on the surfaces of said structural parts.
- 30. Fuel assembly according to claim 29, wherein said structural parts are cladding tubes of the fuel rods for the nuclear fuel.
- 31. Fuel assembly according to claim 29, wherein said structural parts are spacer grids for the fuel rods.
- 32. Fuel assembly according to claim 29, wherein said coating has a thickness of substantially from 0.1 to 20 .mu.m.
- 33. Fuel assembly according to claim 29, wherein said coating has a thickness of substantially from 0.1 to 3 .mu.m.
- 34. Fuel assembly according to claim 29, wherein said coating has a thickness of substantially from 2 to 20 .mu.m.
- 35. Nuclear reactor fuel assembly in the form of a metallic component for a nuclear power plant, comprising fuel rods containing nuclear fuel, structural parts formed of zirconium or a zirconium alloy, said structural parts having surfaces coming into contact with a water or liquid sodium coolant, and a coating of tungsten carbide (WC) disposed on the surfaces of said structural parts.
- 36. Fuel assembly according to claim 35, wherein said structural parts are cladding tubes of the fuel rods for the nuclear fuel.
- 37. Fuel assembly according to claim 35, wherein said structural parts are spacer grids for the fuel rods.
- 38. Fuel assembly according to claim 35, wherein said coating has a thickness of substantially from 0.1 to 20 .mu.m.
- 39. Fuel assembly according to claim 35, wherein said coating has a thickness of substantially from 0.1 to 3 .mu.m.
- 40. Fuel assembly according to claim 35, wherein said coating has a thickness of substantially from 2 to 20 .mu.m.
Priority Claims (2)
Number |
Date |
Country |
Kind |
3445166 |
Dec 1984 |
DEX |
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3736565 |
Oct 1987 |
DEX |
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CROSS-REFERENCE TO RELATED APPLICATION
This application is a continuation of application Ser. No. 263,275, filed Oct. 27, 1988, now abandoned. Ser. No. 263,275 was a continuation-in-part of application Ser. No. 806,706, filed Dec. 9, 1985, now abandoned.
US Referenced Citations (7)
Continuations (1)
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Number |
Date |
Country |
Parent |
263275 |
Oct 1988 |
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Continuation in Parts (1)
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Number |
Date |
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Parent |
806706 |
Dec 1985 |
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