| 摘要 |
A high density nuclear fuel body of plutonium carbide, thorium carbide, or a mixture thereof, is produced by compacting a fine powder of the carbide in an inert gas atmosphere containing less than 20 p.p.m. each of oxygen and water vapour, and sintering the compacted body in an inert gas atmosphere containing less than 10 p.p.m. each of oxygen and water vapour. Powder of particle size not exceeding 10 microns may be compacted into pellets in an argon atmosphere and sintered at a temperature not exceeding 1700 DEG C. also in argon. Helium is referred to as an alternative inert gas. The carbide powder may be formed by milling in a ball mill in an inert gas atmosphere as used for compacting.ALSO:A high density nuclear fuel body of thorium carbide is produced by compacting a fine powder of the carbide in an inert gas atmosphere containing less than 20 p.p.m. each of oxygen and water vapour, and sintering the compacted body in an inert gas atmosphere containing less than 10 p.p.m. each of oxygen and water vapour. Powder of particle size not exceeding 10 microns may be compacted into pellets in an argon atmosphere and sintered at a temperature not exceeding 1700 DEG C. also in argon. Helium is referred to as an alternative inert gas. The carbide powder may be formed by milling in a ball mill in an inert gas atmosphere as used for compacting. |
