Method of preparing spent nuclear fuel rods for long-term storage

Patent · Tue Jan 01 00:00:00 EST 1985

OSTI ID:5631035

Larker, H; Tegman, R

Spent fuel rods from a nuclear reactor are enclosed in a body of copper, the fuel rods being embedded in copper powder in a copper container provided with a copper lid. The container with its contents and lid are then subjected to isostatic compression at a pressure and temperature sufficient to form a coherent dense mass unit of the powder, the container and the lid which embeds the fuel rods. The container can be enclosed in a sealed gas-tight capsule prior to the isostatic compression. A preliminary isostatic compression may be conducted at a lower temperature to effect creep deformation of the container, the lid and the powder.

• Assignee: ASEA Aktiebolag, (Sweden)
• Patent Number(s): US 4491540
• OSTI ID: 5631035
• Resource Relation: Patent Priority Date: Priority date 17 Mar 1982, Sweden; Other Information: PAT-APPL-358899
• Country of Publication: United States
• Language: English

Related Subjects

12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
SPENT FUEL ELEMENTS
ENCAPSULATION
SPENT FUEL STORAGE
CONTAINERS
COMPRESSION
COPPER ALLOYS
CORROSION RESISTANT ALLOYS
CREEP
JOINTS
POWDER METALLURGY
PRESSURE DEPENDENCE
SEALS
SPHERICAL CONFIGURATION
TEMPERATURE DEPENDENCE
TEMPERATURE EFFECTS
ALLOYS
CONFIGURATION
FUEL ELEMENTS
MECHANICAL PROPERTIES
METALLURGY
REACTOR COMPONENTS
STORAGE
052001* - Nuclear Fuels- Waste Processing
052002 - Nuclear Fuels- Waste Disposal & Storage
050900 - Nuclear Fuels- Transport
Handling
& Storage