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Explore the many uses for nuclear science and its impact on energy, the environment, healthcare, food, and more.
Division Spotlight
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.
Meeting Spotlight
Conference on Nuclear Training and Education: A Biennial International Forum (CONTE 2025)
February 3–6, 2025
Amelia Island, FL|Omni Amelia Island Resort
Standards Program
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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Reboot: Nuclear needs a success . . . anywhere
The media have gleefully resurrected the language of a past nuclear renaissance. Beyond the hype and PR, many people in the nuclear community are taking a more measured view of conditions that could lead to new construction: data center demand, the proliferation of new reactor designs and start-ups, and the sudden ascendance of nuclear energy as the power source everyone wants—or wants to talk about.
Once built, large nuclear reactors can provide clean power for at least 80 years—outlasting 10 to 20 presidential administrations. Smaller reactors can provide heat and power outputs tailored to an end user’s needs. With all the new attention, are we any closer to getting past persistent supply chain and workforce issues and building these new plants? And what will the election of Donald Trump to a second term as president mean for nuclear?
As usual, there are more questions than answers, and most come down to money. Several developers are engaging with the Nuclear Regulatory Commission or have already applied for a license, certification, or permit. But designs without paying customers won’t get built. So where are the customers, and what will it take for them to commit?
Teruo Yukitoshi, Taishi Moroishi, Isamu Koizumi, Takashi Abe, Kunihiko Yoshikawa, Yoshiaki Shida
Nuclear Technology | Volume 28 | Number 3 | March 1976 | Pages 506-515
Technical Paper | Reactor | doi.org/10.13182/NT76-A31530
Articles are hosted by Taylor and Francis Online.
High-temperature strength, weldability, and decarburization behavior in liquid sodium of 2¼ Cr— 1 Mo steel with a wide variety of heat treatments and some carbon stabilized 2¼ Cr—1 Mo steels are examined for the purpose of material selection of liquid-metal fast breeder reactor (LMFBR) steam generator tubes. Decarburization of 2¼ Cr—Mo steel in sodium can be suppressed when it is appropriately normalized and tempered instead of annealed. The 2¼ Cr—1 Mo—Nb—Ni steel is considered to be preferable to other stabilized steels, since a small addition of nickel assures sufficient strength, even if the normalizing temperature is as low as 950°C. Stabilized steels should be welded carefully to obtain a fully penetrated bead. Preheating above 200°C and postheating above 720°C are required for stabilization. Compared with all the investigated properties, the materials recommended for LMFBR steam generator tubes are normalized-tempered 2¼ Cr— 1 Mo steel and, if decarburization is not allowable, 2¼ Cr—1Mo—Nb—Ni steel, with the condition that a sound-welded joint can be available.
