Results 31 to 40 of about 1,705,201 (196)

Multi-objective optimization design of steam generators based on a novel dual population genetic algorithm

Nuclear Engineering and Technology
Aiming at the limitations of poor convergence and low optimization accuracy of genetic algorithm, a novel dual-population genetic algorithm (DPGA) is proposed and used to optimize the weight and volume of a vertical U-tube natural circulation steam ...
Yifu Han, Jianyong Lai, Zhihui Chen, Chengming Hao, Junbao Xia, Yu Wang   +5 more
doaj   +1 more source

The Effect of Neutron Fluence at High Temperatures on Strength Nuclear Graphite: Based on Elasticity [PDF]

E3S Web of Conferences
The main structural component and moderator in a high-temperature gas-cooled reactor (HTGR) is nuclear graphite. The long-term performance of these components is greatly influenced by exposure to high neutron fluence at operational temperatures above 600°
Saragi Elfrida, Isnaini M. Darwis, Sriyono, Salimy Djati Hoesen, Irianto Ing Djoko, Aziz Ferhat   +5 more
doaj   +1 more source

Mechanochemical Synthesis and Characterization of Nanostructured ErB4 and NdB4 Rare‐Earth Tetraborides

Advanced Engineering Materials, Volume 27, Issue 6, March 2025.
ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur, Faruk Kaya, Bora Derin, Mustafa Lütfi Öveçoğlu, Ju Li, Duygu Ağaoğulları   +5 more
wiley   +1 more source

Design, construction, and characterization of a Prompt Gamma Neutron Activation Analysis (PGNAA) system at Isfahan MNSR

Nuclear Engineering and Technology, 2023
In this research, a prompt gamma neutron activation analysis (PGNAA) system is designed and constructed based on the use of a low power research reactor.
M.H. Choopan Dastjerdi, J. Mokhtari, M. Toghyani   +2 more
doaj   +1 more source

Microstructural Evolution and Vacancy Defect Formation in Mn–Mo–Ni RPV Steel Under Low Cycle Fatigue: Insights From EBSD and PALS

Advanced Engineering Materials, EarlyView.
Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar, Dhanadeep Dutta, G. Bharat Reddy   +2 more
wiley   +1 more source

An Investigation into the Microstructures and Mechanical Properties of a TIG Welding Joint in Ti-4Al-2V Titanium Alloy

Metals
The Ti-4Al-2V (wt. %) titanium alloy has garnered widespread applications across diverse fields due to its exceptional strength-to-weight ratio, high toughness, specific strength, and corrosion resistance.
Yao Chen, Xiao Liu, Zhendi Zhang, Kaiqing Wang, Shanglin Zhang, Bingnan Qian, Jun Wu, Li Wang   +7 more
doaj   +1 more source

Modular Critical Element Recycling Platform Using a Nanoporous Additively Manufactured Gyroid

Advanced Engineering Materials, EarlyView.
A modular recycling platform integrates 3D‐printed nanoporous gyroid structures to enable efficient critical element recovery. This system utilizes a hierarchical architecture, combining macroscopic channels with polymerization‐induced nanoscale porosity. By systematically tuning structural wall thickness and resin formulation, the platform achieves an
Xiangyu Gao, Keldy Mason, Mert Gülçür, Rachel Paddock‐Lamb, Prince Alvin Fofanah, Zachariah A. Page, Michael Cullinan   +6 more
wiley   +1 more source

Workflow for Design of Experiments‐Based Modeling of Species Transport and Growth Kinetics in GaN Hydride Vapor Phase Epitaxy

Advanced Engineering Materials, EarlyView.
A novel workflow for investigating hydride vapor phase epitaxy for GaN bulk crystal growth is proposed. It combines Design of experiments (DoE) with physical simulations of mass transport and crystal growth kinetics, serving as an intermediate step between DoE and experiments.
J. Tomkovič, G. Lukin, H. Torkashvand, A. Kerschbaum, M. Müller, S. Besendörfer, J. Heitmann, J. Friedrich   +7 more
wiley   +1 more source

Digital Twin Technology Architecture and Application for Nuclear Reactor Intelligent Operation and Maintenance

IEEE Access
In order to improve the safety and reliability of nuclear reactors, and to enhance the digitalization and intelligence level of operation and maintenance management, a digital twin technology architecture for nuclear reactor intelligent operation and ...
Zhuo Zhang, Jia Liu, Wei Zeng, Qingyu Huang, Xiaobo Liu   +4 more
doaj   +1 more source

Investigating the Low‐Temperature Phase Stability of the Binary Ta–W System

Advanced Engineering Materials, EarlyView.
Atomistic simulations show that the binary Ta–W system forms ordered intermetallic phases, B2‐TaW and D03‐TaW3, as 0 K ground states. Configurational entropy, however, lowers the free energy of the disordered bcc solid solution, which becomes the stable phase above about 400 K.
Klemens Lechner, Anna Sophie Jelinek, Velislava Terziyska, Peter Wagatha, Wolfram Knabl, Christian Mitterer, Helmut Clemens, David Holec   +7 more
wiley   +1 more source