Nuclear fuel element for pressurized-water reactors
US5901193A · kind A · utility
18Cited by
4References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 13, 1997 |
| Grant date | May 4, 1999 |
| Priority date | — |
| Expiry date | May 13, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E30/30
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The invention relates to a nuclear fuel element for pressurized-water reactors comprising a fuel cladding of a zirconium alloy composed of two parts. The inner part constitutes a supporting part of a conventional zirconium and the outer part a corrosion-resistant layer of zirconium with 0.65-0.95% Sn and 0.4-0.5% Fe. The difference in Sn content between the inner and outer parts must not exceed 0.7%. The cladding is finally heat-treated within the range 450 to 510.degree. C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.