IMPROVEMENTS IN MATERIALS FOR CONTROL RODS
Patent
·
OSTI ID:4097895
Ceramic neutron-absorbing materials, consisting of B/sub 2/O/sub 3/ and one or more of the oxides of Mg, Ca, Al, and Si, the Batoms constituting 12 to 35% of the total number of atoms. The materials are prepared by either melting and casting or pressing and sintering a powderous mixture; a combination of both methods is also possible, e.g., a mixture of MgO (20), B/sub 2/O/sub 2/ (9), and SiO/sub 2/ (1 mole) is melted at 1400 ts and cooled; the mass is ground, pressed, and sintered at 1100 to 1300 ts C. A tubular control rod is described which consists of 60 annular elements manufactared in this way and having an external diameter of 62 mm and a wall thickness of 6 mm, piled up in a double-walled stainless-steel tube. (NPO)
- Research Organization:
- Originating Research Org. not identified
- NSA Number:
- NSA-15-009357
- OSTI ID:
- 4097895
- Report Number(s):
- FR 1212642
- Country of Publication:
- France
- Language:
- English
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