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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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2024 ANS Annual Conference
June 16–19, 2024
Las Vegas, NV|Mandalay Bay Resort and Casino
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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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Fusion Science and Technology
Latest News
X-energy receives federal tax credit for TRISO fuel facility
Advanced reactor company X-energy has been awarded $148.5 million in tax credits under the Inflation Reduction Act for construction of its TRISO-X fuel fabrication facility in Oak Ridge, Tenn.
T. Okita, K. Asari, S. Fujita, M. Itakura
Fusion Science and Technology | Volume 66 | Number 1 | July-August 2014 | Pages 289-294
Technical Paper | doi.org/10.13182/FST13-756
Articles are hosted by Taylor and Francis Online.
Molecular dynamics simulations were conducted using six interatomic potentials for face-centered cubic metals that differed only in the stacking fault energies (SFEs). We investigated the effects of the SFE on interactions between an edge dislocation and a void of 4.0 nm diameter at 13 intersection positions. In the high SFE, most interaction morphologies at the depinning are such that the two partial dislocations reverse into the perfect dislocation locally at the void interface. In contrast, in the low SFE, the partial dislocations are depinned individually from the void with some certain time lag. The critical resolved shear stress (CRSS) is not symmetrical about the center of the void. CRSS is higher when the center of the void is located not on the glide plane, but in the compressive side of the edge dislocation. In some cases for these conditions, climb motion is observed, which further increases CRSS. The probability of climb motion occurrence is higher with higher SFE. In lower SFE, climb motion occurs temporarily, followed by the disappearance of jog by dislocation releasing several vacancies inside of the void. CRSS is higher with higher SFE for all the intersection positions.