Article
Materials Science, Multidisciplinary
Xiuxuan Duan, Shuoxue Jin, Yamin Song, Shilei Li, Yanxin Qiao, Yanli Wang, Xingzhong Cao
Summary: The study investigated the irradiation effects of P92 alloy at different temperatures and doses, revealing the pinning effect of Cr on dislocation loops in Fe9Cr alloy irradiated at 300°C and the hindrance of carbon-vacancy complexes on the reduction of the S parameter in the P92 alloy.
JOURNAL OF NUCLEAR MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Miao He, Yang Yang, Fei Gao, Yue Fan
Summary: This study investigates the production of extended and mechanically highly consequential defects under concurrent driving forces of irradiation and stress. By using a two-temperature model and controlling mechanical loading, stress sensitivity maps for various types of irradiated dislocations are built. The mechanisms responsible for different responses/sensitivities are elucidated through tracking microstructural evolutions and scrutinizing the temporal-spatial variation of local von Mises stresses.
Article
Nuclear Science & Technology
L. Malerba, N. Anento, J. P. Balbuena, C. S. Becquart, N. Castin, M. J. Caturla, C. Domain, C. Guerrero, C. J. Ortiz, B. Pannier, A. Serra
Summary: This paper summarizes the main mechanisms that drive microstructure evolution in Fe alloys under irradiation, compiling parameters to describe the mobility and stability of point defects. It selects a set of parameters ready for use in microstructure evolution models based on object kinetic Monte Carlo methods, while also identifying parameters that are needed but currently unknown, prompting future calculations.
NUCLEAR MATERIALS AND ENERGY
(2021)
Article
Chemistry, Physical
Xiaowei Jia, Xianchun Liu, Ruyu Zhang, Anqi Xie, Yueran Li, Xiaodan Yu, Min Yu, Yunfeng Li, Zhan Shi, Yan Xing
Summary: A series of Fe-doped KCuTa3O9 (FKCTO-x) oxides were synthesized via one-step high-temperature solid-state reaction. Fe atoms were successfully incorporated into the lattice of KCuTa3O9. The FKCTO-x samples showed enhanced photocatalytic hydrogen evolution activities, with FKCTO-2 exhibiting an optimal hydrogen production rate of 5.51 mu mol h-1 under visible light irradiation, far exceeding that of the pure KCTO. This work provides a simple and effective strategy to design and prepare highly efficient visible-light-driven PLMOs for photocatalytic water splitting.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Multidisciplinary
Jun Cai, Benyamin Shahryari, Abdolhamid Akbarzadeh
Summary: Inspired by origami architecture and functionalization of carbon-based nanomaterials, a carbon nanotube origami (CNT-O) metamaterial is designed using hydrogenation and molecular dynamics simulation. The mechanical properties of CNT-O, such as stiffness, ultimate strength, failure strain, and Poisson's ratio, can be tuned and programmed by altering topological parameters and adopting surface functionalization. Computational simulation, theoretical analysis, and experimentation demonstrate that a broad range of strain-dependent and scale-independent negative Poisson's ratio can be achieved for nanoarchitected metamaterials through the kinematics of folding/unfolding in origamis. This origami strategy provides a platform for designing highly tunable low-dimensional nanomaterials (e.g., graphene and CNT) with auxeticity.
Article
Materials Science, Multidisciplinary
Jing Xue, Rong Hu, Guanghai Bai, Jinna Mei, Fei Xue, Gang Sha
Summary: The study reveals that the formation of Mn-Ni clusters in Fe-Mn-Ni steel during irradiation at different temperatures leads to significant variations in their composition, with clusters exhibiting different hardening effects depending on their chemistry.
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
(2021)
Article
Chemistry, Physical
Xiaorui Yu, Lixin Chen, Liuyu Jia, Lizhi Feng, Liu Yang, Jing Li, Baodan Liu
Summary: In this study, highly efficient and stable clustered CoP nanowires electrocatalysts were synthesized on nickel foam, and an ion exchange strategy was proposed to precisely control the doping content of iron to modify the electrochemical activity of CoP nanowires. The introduction of iron effectively changes the surface atomic configuration and electronic structure of CoP, increasing the active sites and enhancing the catalytic performance. The synthetic strategy of CoFeP/NF electrode proposed in this work will significantly promote the development of highly efficient transition metal phosphides electrocatalysts with lower overpotential and better stability.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Nuclear Science & Technology
S. Pantousa, K. Mergia, A. Ionescu, E. Manios, S. Dellis, C. Kinane, S. Langridge, A. Caruana, U. Kentsch, S. Messoloras
Summary: The study found that Fe-10at%Cr alloy exhibited dose-dependent effects such as lattice constant increase, grain size growth, and Cr depletion in the matrix after irradiation, with these changes largely occurring before 4 dpa and the system reaching a dynamic equilibrium afterwards.
NUCLEAR MATERIALS AND ENERGY
(2022)
Article
Materials Science, Multidisciplinary
Meimei Li, Wei-Ying Chen, Peter M. Baldo
Summary: The study on helium effects and their interactions with displacement damage in irradiated materials was conducted using in situ dual-ion beam irradiation capability with transmission electron microscopy. It was found that helium bubbles were formed and segregated within dislocation loops during helium implantation experiments, while no bubbles were observed outside the loops. However, when nickel was irradiated simultaneously with Kr ions and He ions, helium bubbles were formed uniformly in the matrix.
MATERIALS CHARACTERIZATION
(2021)
Article
Chemistry, Physical
Camila Konno, Clarissa Cruz, Thiago Costa, Andre Barros, Pedro Goulart, Amauri Garcia, Noe Cheung
Summary: This study investigates the quantitative correlations of hydrogen evolution performance with solidification microstructural and thermal parameters in various Al alloys. Results show that hydrogen evolution becomes slower with increased alloy solute content, and the distribution of Sn-rich particles affect hydrogen generation in Al-Sn alloys while coarsening of Al6Fe IMCs fibers favor hydrogen production in Al-Fe alloys. The specific hydrogen production of the Al-1wt.%Fe alloy is higher than other studied alloys under certain solidification conditions.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Y. P. Li, M. S. Yu, G. Ran, N. Gao, Y. Chen, Q. Han, H. Wang, Z. H. Zhou, J. C. Huang
Summary: FeCrAl alloys exhibit stable dislocation density and rapid growth of dislocation size during irradiation, with a significant decrease in dislocation density as irradiation time prolongs. Additionally, two different types of dislocation loops are formed in FeCrAl alloys.
MATERIALS TODAY ENERGY
(2021)
Article
Nuclear Science & Technology
G. Kapoor, P. Chekhonin, C. Kaden, K. Vogel, F. Bergner
Summary: Hardening of Fe-9%Cr alloys exposed to irradiation with Fe2+ ions of two different energies is investigated using nanoindentation. The limited penetration depth of the ions causes steep damage gradients in the near-surface volumes of the irradiated samples, resulting in graded microstructures and depth-dependent irradiation hardening. The observed microstructures consist of dislocation loops with band-like distributions and are concluded to be the dominant source of the measured irradiation-induced hardening. Linear superposition is found to be the most appropriate selection under the present conditions for predicting the hardening contributions.
NUCLEAR MATERIALS AND ENERGY
(2022)
Article
Chemistry, Physical
E. Hatami, A. Toghraei, Ghasem Barati Darband
Summary: The usage of active electrocatalysts is beneficial for accelerating the kinetics of electrochemical reactions and enhancing water splitting efficiency. A novel Ni-Fe micro/nano urchin-like structure with activity for both HER and OER has been reported in this study. This cost-effective fabrication method shows promising potential for applications in the field of water splitting.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Materials Science, Multidisciplinary
Lilong Pang, Pengfei Tai, Hailong Chang, Minghuan Cui, Tielong Shen, Zhiguang Wang, Kong Fang Wei, Zhiwei Ma, Sihao Huang, Chao Liu, Xing Gao, Yanbin Sheng
Summary: This study investigated the evolution of irradiation defects in Ti3AlC2 samples under Fe ions, He ions, and sequential Fe and He ions irradiation. The results showed that Fe ions irradiation led to stacking faults and twins, while sequential He ions irradiation further evolved the defects induced by Fe ions and decreased the intensity of GIXRD. The findings suggest a significant impact of sequential ion irradiation on the formation of dislocation loops and He bubbles.
JOURNAL OF NUCLEAR MATERIALS
(2022)
Article
Nanoscience & Nanotechnology
Spencer Doran, Yonggang Yan, Liuqing Yang, Jae-Kyung Han, Di Chen, Kun Wang, Youxing Chen, Megumi Kawasaki, Tianyi Chen
Summary: Nanocrystalline materials often experience radiation-enhanced grain coarsening, but high entropy alloys (HEA) may have superior radiation tolerance due to their intrinsic sluggish diffusion. In this study, CoCrFeNiMn HEA samples were processed via high-pressure torsion (HPT) to form nanograins with unsaturated and saturated plastic deformation. After Ni ion irradiation, grain growth was observed in both samples, but the 8T sample showed stronger radiation tolerance. This resistance is attributed to a unique nanodomain microstructure formed within the radiation-coarsened grains of the 8T sample.
SCRIPTA MATERIALIA
(2023)
Article
Materials Science, Multidisciplinary
M. Pascuet, G. Monnet, G. Bonny, E. Martinez, J. J. H. Lim, M. G. Burke, L. Malerba
JOURNAL OF NUCLEAR MATERIALS
(2019)
Article
Materials Science, Multidisciplinary
M. J. Konstantinovic, L. Malerba
JOURNAL OF NUCLEAR MATERIALS
(2020)
Article
Materials Science, Multidisciplinary
Ville Jansson, Andreas Kyritsakis, Simon Vigonski, Ekaterina Baibuz, Vahur Zadin, Alvo Aabloo, Flyura Djurabekova
MODELLING AND SIMULATION IN MATERIALS SCIENCE AND ENGINEERING
(2020)
Article
Materials Science, Multidisciplinary
Frank Bergner, Mercedes Hernandez-Mayoral, Cornelia Heintze, Milan J. Konstantinovic, Lorenzo Malerba, Cristelle Pareige
Article
Nanoscience & Nanotechnology
Ville Jansson, Ekaterina Baibuz, Andreas Kyritsakis, Simon Vigonski, Vahur Zadin, Stefan Parviainen, Alvo Aabloo, Flyura Djurabekova
Article
Nuclear Science & Technology
Sergey Smolentsev, Gandolfo Alessandro Spagnuolo, Arkady Serikov, Jens Juul Rasmussen, Anders H. Nielsen, Volker Naulin, Jaime Marian, Matti Coleman, Lorenzo Malerba
FUSION ENGINEERING AND DESIGN
(2020)
Article
Materials Science, Multidisciplinary
B. Gomez-Ferrer, C. Dethloff, E. Gaganidze, L. Malerba, C. Hatzoglou, C. Pareige
JOURNAL OF NUCLEAR MATERIALS
(2020)
Article
Materials Science, Multidisciplinary
Jyri Kimari, Ville Jansson, Simon Vigonski, Ekaterina Baibuz, Roberto Domingos, Vahur Zadin, Flyura Djurabekova
COMPUTATIONAL MATERIALS SCIENCE
(2020)
Article
Materials Science, Multidisciplinary
M. Pascuet, G. Bonny, G. Monnet, L. Malerba
JOURNAL OF NUCLEAR MATERIALS
(2020)
Article
Chemistry, Physical
N. Castin, G. Bonny, A. Bakaev, F. Bergner, C. Domain, J. M. Hyde, L. Messina, B. Radiguet, L. Malerba
MATERIALS TODAY ENERGY
(2020)
Article
Energy & Fuels
Lorenzo Malerba, Abderrahim Al Mazouzi, Marjorie Bertolus, Marco Cologna, Pal Efsing, Adrian Jianu, Petri Kinnunen, Karl-Fredrik Nilsson, Madalina Rabung, Mariano Tarantino
Summary: Nuclear energy is the main low-carbon electricity source in Europe, with a focus on developing next generation nuclear systems. Materials and material science play a crucial role in achieving safer, more efficient, more economical, and more sustainable nuclear energy. The paper proposes a research agenda that combines digital technologies with materials science practices to promote innovation and balance various nuclear energy interests.
Article
Multidisciplinary Sciences
Jyri Kimari, Ville Jansson, Simon Vigonski, Ekaterina Baibuz, Roberto Domingos, Vahur Zadin, Flyura Djurabekova
Article
Materials Science, Multidisciplinary
M. J. Konstantinovic, A. Ulbricht, T. Brodziansky, N. Castin, L. Malerba
JOURNAL OF NUCLEAR MATERIALS
(2020)
Review
Nuclear Science & Technology
Lorenzo Malerba, Pietro Agostini, Marjorie Bertolus, Fabienne Delage, Annelise Gallais-During, Christian Grisolia, Karine Liger, Pierre-Francois Giroux
EPJ NUCLEAR SCIENCES & TECHNOLOGIES
(2020)
Article
Materials Science, Multidisciplinary
A. Kyritsakis, E. Baibuz, V Jansson, F. Djurabekova
Article
Materials Science, Multidisciplinary
Liuming Wei, Jingwen Li, Yonggang Li, Qirong Zheng, Fan Cheng, Chuanguo Zhang, Jingyu Li, Gaofeng Zhao, Zhi Zeng
Summary: This study investigates the influence of He-V complexes on H behaviors on different W surfaces using DFT calculations. The results show that H dissolution is most difficult but H trapping is easiest on the W (110) surface, while the opposite is true on the W (111) surface. Moreover, the presence of He-V complexes increases the difficulty of H diffusion from bulk to surface and desorption.
JOURNAL OF NUCLEAR MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Yan Meng, Song Zeng, Chen Chen, Chaowen Zhu, Huahai Shen, Xiaosong Zhou, Xiaochun Han
Summary: The characteristics of magnetron sputtered Cr coatings vary with different temperature, bias voltage, and pressure. Coatings with random orientation, good crystallinity, and small grain size exhibit favorable oxidation behavior, while coatings with strong (200) texture, poor crystallinity, and large grains have many intrinsic defects that are detrimental to the protection property of the Cr coatings.
JOURNAL OF NUCLEAR MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Xinyuan Xu, Zefeng Yu, Wei-Ying Chen, Aiping Chen, Arthur Motta, Xing Wang
Summary: This study presents an automated approach for characterizing grain morphology in TEM images recorded during ion irradiation. By combining a machine learning model and a computer vision algorithm, comparable results to human analysis can be achieved with significantly reduced analysis time. Researchers can train their own models following the procedures described in this study to automate grain morphology analysis of their own TEM images.
JOURNAL OF NUCLEAR MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Shihao Wu, Dong Wang, Yapei Zhang, Koji Okamoto, Marco Pellegrini, Wenxi Tian, Suizheng Qiu, G. H. Su
Summary: The oxidation and degradation mechanisms of Cr coating on Zr alloy cladding under high temperature steam atmosphere are summarized, and a mathematical analysis model is established to predict the changes in coating thickness. The model is applied in the analysis of structure evolution under different conditions.
JOURNAL OF NUCLEAR MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
V. Diaz-Mena, J. de Prado, M. Roldan, I. Izaguirre, M. Sanchez, M. Rieth, A. Urena
Summary: The brazeability of a cupronickel alloy was evaluated as a filler alloy for high-temperature joining of tungsten to steel. The study investigated the brazing conditions and the impact of the selected filler on the joint quality using numerical software. The results showed different metallurgical interactions and diffusion phenomena between the filler alloy and the base materials at different temperatures. The study emphasized the importance of selecting a suitable filler to mitigate residual stresses in the joints.
JOURNAL OF NUCLEAR MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Pengcheng Zhu, Yajie Zhao, Yan-Ru Lin, Jean Henry, Steven J. Zinkle
Summary: This study investigates the effect of heavy-ion irradiation on radiation hardening in high-purity binary alloy Fe18Cr. Nanoindentation testing and high-quality TEM imaging were conducted to extract hardness and microstructure information. The strength factor was accurately calculated based on the detailed TEM characterization of irradiated microstructures, and a refined hardening superposition method was applied to quantify the mechanical properties of ion-irradiated materials.
JOURNAL OF NUCLEAR MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Bin Wu, Haixia Ning, Hanzhen Zhu, Jianjun Chen, Kang Wang, Daiyu Zhang, Fu Wang, Qilong Liao
Summary: This study discusses the effects of ZrO2 and B2O3 on the phase composition and properties of SAP-based glass-ceramics. The results show that ZrO2 addition improves the formation of NZP phase while restricting the crystallization of AlPO4 phases. The correct ratios of ZrO2 and B2O3 allow only the formation of NZP phase within the SAP glass.
JOURNAL OF NUCLEAR MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Hwasung Yeom, Greg Johnson, Benjamin Maier, Tyler Dabney, Kumar Sridharan
Summary: Cr-Nb bilayer coatings were developed using cold spray deposition to improve the limiting operational temperature of Cr-coated Zr-alloy system. The coatings exhibited outstanding oxidation resistance at high temperatures and formed continuous intermetallic compound layers at the interfaces.
JOURNAL OF NUCLEAR MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Padhraic L. Mulligan, Andrew T. Nelson, Chad M. Parish, Patrick A. Champlin, Xiang Chen, Daniel Morrall, Jason M. Harp
Summary: Environmental barrier coatings are being developed to reduce oxidation and embrittlement in Zr-based materials. Chromium nitride is a candidate for this application, but understanding its impact on irradiation-induced creep and microstructure is critical.
JOURNAL OF NUCLEAR MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Dexuan Yan, Xinlei Cao, Ke Shen
Summary: This study investigated the purification mechanism of polycrystalline graphite by comparing IG-11 graphite with IG-110 nuclear grade graphite. The analysis revealed that metallic impurities in IG-11 were primarily segregated within graphite porosities, while IG-110 demonstrated a significant reduction in impurities. This research contributes to the development of innovative graphite purification techniques for greater purity and stronger oxidation resistance.
JOURNAL OF NUCLEAR MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Wei Xu, Wei Peng, Lei Shi, Qi Sun
Summary: This paper investigates the oxidation and shape evolution of matrix graphite in high temperature gas-cooled reactors during air-ingress accidents. A reaction kinetics model is established and computational fluid dynamics with a dynamic mesh method is used to simulate the oxidation process. The results show that the geometric shape of graphite changes significantly with increasing flow rate, and the graphite pebbles tend to form a structure with a narrow front and wide tail.
JOURNAL OF NUCLEAR MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Allison Harward, Casey Elliott, Michael Shaltry, Krista Carlson, Tae-Sic Yoo, Guy Fredrickson, Michael Patterson, Michael F. Simpson
Summary: This paper investigates the hygroscopic properties of eutectic LiCl-KCl absorbed into zeolite-4A. The study finds that water absorption and corrosion worsen with increasing salt loading. It also suggests that the salt can be stored in a non-inert atmosphere for a certain period of time.
JOURNAL OF NUCLEAR MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Takaaki Koyanagi, Xunxiang Hu, Christian M. Petrie, Gyanender Singh, Caen Ang, Christian P. Deck, Weon-Ju Kim, Daejong Kim, James Braun, Yutai Katoh
Summary: This study provides critical experimental data on the effects of irradiation on the hermeticity of SiC composite cladding, finding that irradiation can cause a decrease in hermeticity and cracking, and coating the outer surface can mitigate the cracking issue.
JOURNAL OF NUCLEAR MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
S. Krat, A. Prishvitsyn, Yu. Gasparyan
Summary: This study proposes a probabilistic and diffusion-based model to describe the co-deposition of multiple hydrogen isotopes with slowly grown metal layers. The model calculates the relative concentrations of different hydrogen isotopes in the co-deposited metal layers. It is found that if hydrogen isotopes have different detrapping energies, only the isotope with the highest detrapping energy shows a monotonic decrease in concentration with deposition temperature. Furthermore, the study evaluates the uncertainty of tritium concentration in the co-deposited layer based on the uncertainty in detrapping energy of tritium and deuterium, predicting a >10% tritium concentration uncertainty for a 0.01 eV difference.
JOURNAL OF NUCLEAR MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Tijo Vazhappilly, Arup Kumar Pathak
Summary: This study investigates the effect of Ce atom substitution in UO2 on its thermophysical properties using density functional theory. The results show that the Ce substitution levels and the oxidation state of Ce/U atoms strongly influence the band structure and specific heat capacity of the UO2 lattice. These findings provide important insights into the fuel properties of UO2 under reactor conditions.
JOURNAL OF NUCLEAR MATERIALS
(2024)