Nuclear fuel compacts of coated particle fuel
Abstract
Abstract In the forming of a nuclear fuel containing body composed of fission product retaining coated fuel particles in a matrix material it has been convenient to proceed by overcoating each particle with its share of the matrix material incorporating a polymerisable resin and then to press a mass of these in a die, which is heated first to melt the resin and then to effect polymerisation. This resulted in some edge particles protruding through their overcoating and having their fission product retaining coatings damaged. The present invention reduces the risk of such damage by providing a layer of matrix material between the cavity surfaces and the overcoated particles near the edge of the mass which, on pressing, acts as a buffer during the pressing stage and becomes an integral part of the body during the polymerisation stage.
Inventors
- 👤 D Sturge
- 👤 Gough J Cox
Bibliographic Details
Claims Analysis
Total Claims: 3References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-09-10 | 1977-03-12 | 1977-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-10 | 1981-03-12 | 1981-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-10 | 1985-03-12 | 1985-09-11 | $7700.00 | Window Closed / Lapsed |