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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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Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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NRC cuts fees by 50 percent for advanced reactor applicants
The Nuclear Regulatory Commission has announced it has amended regulations for the licensing, inspection, special projects, and annual fees it will charge applicants and licensees for fiscal year 2025.
Kazumi Asahi, Masao Kitamura, Eishi Ibe, Yamato Asakura, Shunsuke Uchida
Nuclear Science and Engineering | Volume 95 | Number 4 | April 1987 | Pages 257-265
Technical Paper | doi.org/10.13182/NSE87-A20437
Articles are hosted by Taylor and Francis Online.
Double oxide layers were observed on the stainless steel coupons. The outer layer consisted of well-developed crystals (diameter: 0.5 to 1.0 üm, probable major oxide form: NiO Fe2O3), while the inner layer consisted of smaller particles [diameter: 0.1 to 0.3 μm, probable major oxide form: NiO-(Cr,Fe)2O3]. The depletion of chromium and nickel and the accumulation of impurities in the water, such as 60Co, zinc, and copper, were observed in the outer layer. For the carbon steel the chromium-rich layer existed at the outer/inner interface. It was considered that the outer and inner layers were a corundum-type oxide (Cr,Fe)2O3. The outer layer seemed to be formed by a wet corrosion mechanism (dissolution-precipitation of metal), while the inner layer seemed to be formed by a dry corrosion one (reaction of metal with oxygen diffused through the oxide layers from the water). More than 80% of the 60Co in a coupon was included in the outer layer, and it was supposed that this was deposited mainly during wet corrosion.