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Aerospace Nuclear Science & Technology
Organized to promote the advancement of knowledge in the use of nuclear science and technologies in the aerospace application. Specialized nuclear-based technologies and applications are needed to advance the state-of-the-art in aerospace design, engineering and operations to explore planetary bodies in our solar system and beyond, plus enhance the safety of air travel, especially high speed air travel. Areas of interest will include but are not limited to the creation of nuclear-based power and propulsion systems, multifunctional materials to protect humans and electronic components from atmospheric, space, and nuclear power system radiation, human factor strategies for the safety and reliable operation of nuclear power and propulsion plants by non-specialized personnel and more.
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2025 ANS Annual Conference
June 15–18, 2025
Chicago, IL|Chicago Marriott Downtown
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The Standards Committee is responsible for the development and maintenance of voluntary consensus standards that address the design, analysis, and operation of components, systems, and facilities related to the application of nuclear science and technology. Find out What’s New, check out the Standards Store, or Get Involved today!
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Supreme Court rules against Texas in interim storage case
The Supreme Court voted 6–3 against Texas and a group of landowners today in a case involving the Nuclear Regulatory Commission’s licensing of a consolidated interim storage facility for spent nuclear fuel, reversing a decision by the 5th Circuit Court of Appeals to grant the state and landowners Fasken Land and Minerals (Fasken) standing to challenge the license.
Norikatsu Yokota, Shigehiro Shimoyashiki
Nuclear Technology | Volume 81 | Number 3 | June 1988 | Pages 407-414
Technical Paper | Material | doi.org/10.13182/NT88-A16061
Articles are hosted by Taylor and Francis Online.
The characteristics of self-welding of fast breeder reactor structural materials in liquid sodium have been investigated. A maximum contact pressure of 98 MPa was loaded on the materials (Type 304, Type 321, Inconel 718, and 2.25 Cr-1Mo steel) for 100 to 900 h in sodium at 505 to 550°C. Shear stress for breakaway between the bonded material couples is in proportion to contact pressure. The 2.25 Cr-1 Mo steel welded to itself is the strongest combination among couples of the same material. Each pair of two materials chosen from Type 304, Type 321, and Inconel 718 materials shows almost the same self-welding coefficient, which is defined as the ratio between shear stress for breakaway and contact pressure on testing. Self-welding coefficients are in proportion to the square root of the contact periods and increase as the temperature of sodium is elevated. The apparent activation energy obtained from the self-welding coefficient is ∼188 kJ/mol for the combination of 2.25 Cr-1 Mo/2.25 Cr-1 Mo, and 218 kJ/mol for Type 304/Type 304 or Type 304/Type 321.
