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Nuclear Energy Strategy announced at CNA2026
At the Canadian Nuclear Association Conference (CNA2026) in Ottawa, Ontario, on April 29, Minister of Energy and Natural Resources Tim Hodgson announced that Natural Resources Canada (NRCan) is developing a new Nuclear Energy Strategy for the country. The strategy, which is slated to be released by the end of this year, will be based on four objectives: 1) enabling new nuclear builds across Canada, 2) being a global supplier and exporter of nuclear technology and services, 3) expanding uranium production and nuclear fuel opportunities, and 4) developing new Canadian nuclear innovations, including in both fission and fusion technologies.
G. S. Hanks, R. S. Kirby, J. M. Taub
Nuclear Science and Engineering | Volume 14 | Number 2 | October 1962 | Pages 135-143
Technical Paper | doi.org/10.13182/NSE62-A28112
Articles are hosted by Taylor and Francis Online.
An impact extrusion procedure was developed to fabricate a tantalum container approximately 9 in. long, 0.375 in. i.d., 20 to 30 mils in wall thickness, and closed at one end. A solid slug was given five impact steps to form a thick-walled cup. The cup was ironed through six stages to the final shape. The material used initially was powder metallurgy tantalum; high purity, electron-beam melted tantalum and tantalum containing 0.1 wt. % tungsten was used in later work. Aluminum bronze dies and a cold beeswax lubricant were used to prevent galling between the tools and the tantalum. Thirty to forty tons were required to form the metal in the impact extrusion steps. Draw force needed in the ironing operation ranged from 600 lb to 3600 lb. The Ta + 0.1 wt. % tungsten alloy consistently required greater impact extrusion and draw pressures than were required by the high purity metal. The investigation showed that heat treating procedures had a considerable effect on the surface finish by controlling the grain size in the metal. In general, tantalum was found to form satisfactorily in both the impact extrusion and ironing procedures.