Article
Materials Science, Ceramics
Chengpeng Jia, Peng Zhang, Wenrui Xu, Wenxian Wang
Summary: The study found that short carbon fiber reinforced aluminium 6061 boron carbide hybrid composite has better neutron shielding and mechanical properties compared to traditional aluminium 6061-boron carbide composite. Simulation and experimental methods were used to draw these conclusions.
CERAMICS INTERNATIONAL
(2021)
Article
Engineering, Mechanical
Ng Lin Feng, Sivakumar Dhar Malingam, Noordiana Mohd Ishak, Kathiravan Subramaniam
Summary: The study found that pineapple leaf fibre reinforced metal laminates exhibited superior mechanical and specific properties compared to pineapple leaf fabrics and composite laminates. The metal laminates had significantly higher tensile and flexural strength, as well as impact strength, making them a promising and sustainable option for future structural applications.
JOURNAL OF SANDWICH STRUCTURES & MATERIALS
(2021)
Article
Chemistry, Physical
Yang Chen, Yuechen Chen, Haoyu Zhai, Feifei Wang, Mingliang Wang, Zhe Chen, Shengyi Zhong, Xianfeng Li, Haowei Wang
Summary: A structural-functional integrated TiB2/Al-Mg-Gd composite with high thermal neutron shielding efficiency (99%) and excellent mechanical properties was fabricated using powder metallurgy-based methods. The refinement of Gd-contained phase in the composite played a key role in improving the neutron shielding property, which was supported by theoretical simulations and experimental results. This novel composite has the potential to be a promising candidate for neutron shielding materials in the future.
Article
Materials Science, Composites
M. Hussain, A. Imad, A. Saouab, T. Kanit, Y. Nawab, C. Herbelot, M. Kashif
Summary: This paper reports the development of new 3D Jute Reinforced natural fibre Aluminium Laminates (JuRALs) with improved mechanical properties through enhanced weaving pattern and metal-composite bonding. Tensile and flexural properties were better in through-thickness composites, while T-peel tests showed the influence of constituent materials on metal-composite adhesion rather than the type of 3D structure.
JOURNAL OF COMPOSITE MATERIALS
(2021)
Article
Mechanics
T. W. Loh, A. A. Khatibi, A. P. Mouritz
Summary: A combined experimental and modelling study was conducted to investigate the scatter in failure loads and failure times of load-bearing fibre reinforced polymer laminates exposed to fire, leading to uncertainty in quantifying structural survivability. The analysis revealed that factors such as heat flux and applied compression load contribute to the scatter in deformation rate and time-to-failure of the laminates. A statistical-based model was proposed to predict the scatter in compressive failure stress and time-to-failure of fibreglass laminates under fire exposure and compression loading.
COMPOSITE STRUCTURES
(2021)
Article
Engineering, Manufacturing
Yunfu Ou, Longqiang Wu, Meir Hefetz, Carlos Gonzalez, Juan Jose Vilatela
Summary: This study presents a method for fabricating carbon nanotube fibre veils on woven carbon fibre/epoxy composite laminates and investigates the effects of interleaf thickness and degree of infiltration on interlaminar properties. The interlaminar fracture toughness under different loading conditions is analyzed, and the failure and toughening mechanisms are systematically studied. The experimental results show that the toughening effects of CNT veils depend on their thickness and degree of resin infiltration, observed by electron microscopy and Raman spectroscopy. The mode I interlaminar fracture toughness increases with increasing CNT veil thickness up to 10 μm, but decreases at 15 μm, while the mode II fracture toughness improves with increasing thickness of CNT veils. The figure of merit for interlaminar reinforcement is significantly high at 58.5, surpassing the current state-of-the-art.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2023)
Article
Construction & Building Technology
Li Min, Dilum Fernando, Michael Heitzmann, Chuang Miao
Summary: Hybrid fibre reinforced polymer-timber thin-walled structural members offer a sustainable alternative to light-weight steel and aluminium. The study investigated the effect of manufacturing pressure and fibre type on mechanical properties, finding the best parameters depended on the type of load applied. Classic laminate theory was accurate for membrane properties but inaccurate for flexural properties of HFT laminates.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Article
Engineering, Manufacturing
Irene Jimenez-Fortunato, Daniel J. Bull, Ole T. Thomsen, Janice M. Dulieu-Barton
Summary: Identifying the source of thermoelastic response in composite laminates is challenging, but a method combining digital image correlation and TSA can categorically establish where the response comes from.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2021)
Article
Materials Science, Characterization & Testing
Sheedev Antony, Abel Cherouat, Guillaume Montay
Summary: In this study, the mechanical properties of hemp fibre composite materials were tested, showing that the tensile strength increases, viscoelasticity decreases, natural frequency increases, and damping ratio decreases with the increase of fibre volume fraction.
POLYMERS & POLYMER COMPOSITES
(2021)
Article
Materials Science, Composites
N. Rajesh Jesudoss Hynes, N. J. Vignesh, J. T. Winowlin Jappes, P. Shenbaga Velu, Claudia Barile, Muhammad Asad Ali, Muhammad Umar Farooq, Catalin Pruncu
Summary: This study evaluates two different stacking sequences of Fibre Metal Laminates (FMLs) and compares them with a pure carbon composite. The results show that one of the stacking sequences (Type - I) performs the best, with higher tensile strength, impact resistance, and flexural load bearing capacity.
COMPOSITES SCIENCE AND TECHNOLOGY
(2022)
Article
Agricultural Engineering
Jing-Jing Lu, Yi-Cheng Shi, Ji-Peng Guan, Rui-Qiong Dang, Li-Chao Yu, Hong-Quan Wang, Ning-Di Hu, Xiao-Jun Shen
Summary: Replacing artificial fibers with natural fibers to fabricate fiber-reinforced resin matrix composites is a research hotspot at present. How to improve the poor compatibility between plant fiber and resin matrix is hot spots in this area. Our work aims to modify RFF reinforced epoxy resin (RFF/EP) composite laminates with silicon polymer (PSOL) and improve the performance of the composite laminates.
INDUSTRIAL CROPS AND PRODUCTS
(2023)
Article
Multidisciplinary Sciences
Norah A. M. Alsaif, Z. Y. Khattari, Hesham M. H. Zakaly, Y. S. Rammah, Antoaneta Ene, M. S. Al-Buriahi
Summary: The effects of WO3 on neutron and ionizing radiation defending factors of ternary tellurite-based glass blocks have been investigated. The studied glasses exhibited different shielding factors and kinetics properties at different photon energies. The WO3 content in the glasses influenced parameters such as mass attenuation coefficient and mean free path, with TKW-0, TKW-5, TKW-10, TKW-15, and TKW-20 showing varying values.
Article
Engineering, Multidisciplinary
Peter Kiss, Jonathan Glinz, Wolfgang Stadlbauer, Christoph Burgstaller, Vasiliki-Maria Archodoulaki
Summary: The study investigated the use of infrared irradiation for desizing CF fabrics to enhance interfacial adhesion with thermoplastic matrices, achieving similar performance to industrial counterparts. Conversely, TPCL prepared from EP-sized CF fabrics showed poor consolidation and wetting out by the thermoplastic matrix, underlining the importance of removing EP sizing.
COMPOSITES PART B-ENGINEERING
(2021)
Article
Materials Science, Textiles
Fanglin Cong, Shuo Wang, Linlin, Meng Cao, Zehui Jia, Zhiqiang Zhou, Xu Cui
Summary: The properties of Glass fibre aluminium laminate (Glare) can be enhanced by adding graphene as a nanofiller to the matrix. The addition of graphene improves the interlaminar mechanical and dynamic impact properties of Glare. The graphene-modified Glare shows significantly improved mechanical performance, with the maximum enhancement observed at a graphene content of 1.0 wt%. The toughening mechanism of graphene involves strengthening the interfaces and the resin matrix of Glare.
FIBERS AND POLYMERS
(2022)
Article
Polymer Science
Ramesh Velumayil, Anand Palanivel
Summary: This study investigates the fabrication and mechanical properties of Kevlar/epoxy, basalt/epoxy, and Kevlar/basalt/epoxy hybrid composite laminates. The results showed that the pure basalt/epoxy laminates exhibited higher tensile and flexural strength compared to its Kevlar/epoxy counterpart, while the hybrid laminates showed intermediate values. Similar trends were observed in terms of hardness and impact strength.
Review
Engineering, Multidisciplinary
Fu-yao Chen, Chun-lei Xuan, Qiang-qiang Lu, Lei Xiao, Jun-qing Yang, Yu-bing Hu, Guang-Pu Zhang, Ying-lei Wang, Feng-qi Zhao, Ga-zi Hao, Wei Jiang
Summary: Ammonium dinitramide (ADN) is a potential substitute for ammonium perchlorate in energetic materials due to its high density, positive oxygen balance, and halogen-free characteristics. However, its application is limited due to its strong hygroscopicity, difficult storage, and incompatibility with isocyanate curing agents. An in-depth analysis and discussion of key research points are crucial in order to fully utilize the advantages of ADN in energetic materials.
DEFENCE TECHNOLOGY
(2023)
Article
Chemistry, Inorganic & Nuclear
Jinlin Song, Pin Gong, Peng Wang, Jinzhao Zhang, Zhimeng Hu, Cheng Zhou, Xiaoxiang Zhu, Qing Wei, Jian Zhou, Xiaobin Tang
Summary: Research on unmanned online monitoring equipment for marine radioactivity surrounding nuclear power plants is of great significance. In this work, a small radioactivity monitoring system based on buoy was designed and manufactured for the emergency situation of nuclear accidents. The core of the system is the underwater gamma spectrometer, which can respond to gamma rays from 60 keV to 3 MeV and identify the nuclides within this energy range. The system's stability and radioactivity monitoring capabilities have been verified through experiments conducted in the seawater around the Tianwan Nuclear Power Plant in Lianyungang, China.
APPLIED RADIATION AND ISOTOPES
(2023)
Article
Thermodynamics
Chenhao Yang, Nailiang Zhuang, Hangbin Zhao, Xiaobin Tang
Summary: A dynamic system model of a lunar surface nuclear power system combined with a Stirling cycle was proposed and simulated under various conditions. The study found that thermal power variations have a nonlinear delay effect on the dynamic system model, and lunar surface temperature significantly impacts the system's operation and response. This research provides a practical tool for transient analysis of lunar surface nuclear reactor power systems and theoretical support for the design of such reactors.
APPLIED THERMAL ENGINEERING
(2023)
Article
Radiology, Nuclear Medicine & Medical Imaging
Xing Di, Changran Geng, Chang Guo, Yufen Shang, Hongtao Fu, Haonan Han, Xiaobin Tang
Summary: This study proposes a novel carbon quantum dot (cQD) sheeting to adjust the wavelength of Cherenkov emission and increase the optical signal. By combining a specific filter, the sheeting can be used for in vivo monitoring of the surface beam profile on patients with ambient light. Experimental results show that the cQD sheeting significantly improves the light intensity and SNR of optical images, and enables obtaining high SNR optical images in the presence of ambient light.
Article
Radiology, Nuclear Medicine & Medical Imaging
Feng Tian, Sheng Zhao, Changran Geng, Chang Guo, Renyao Wu, Xiaobin Tang
Summary: This study proposes a neural network-based dose prediction method for boron neutron capture therapy (BNCT) to rapidly and accurately acquire the three-dimensional therapeutic dose distribution for patients with glioblastoma, addressing the time-consuming issue in BNCT dose calculation. The results demonstrate that the method can significantly reduce the calculation time while ensuring the accuracy of the predicted three-dimensional therapeutic dose-effect.
Review
Thermodynamics
Xiaohe Wang, Gazi Hao, Lei Xiao, Yubing Hu, Guangpu Zhang, Suwei Wang, Junqing Yang, Wei Jiang
Summary: This paper summarizes the research advances in the thermal decomposition of TKX-50, examines the thermal decomposition path of TKX-50, and analyzes the changes in the thermal decomposition process of TKX-50 under different conditions and in different systems. It also provides prospects for future research focus, which is valuable for improving the detonation performance of TKX-50 and designing new energetic ionic salts.
THERMOCHIMICA ACTA
(2023)
Article
Materials Science, Multidisciplinary
Sheng Lai, Yunpeng Liu, Junxu Mu, Zhaopeng Feng, Kai Miao, Xiaobin Tang
Summary: In this study, we constructed a triode structure of carbon nanotube (CNT) cold cathode X-ray source driven by pulse voltage in a dynamic vacuum system. The results indicated that the grid voltage and pulse width had an impact on the amplitude, delay time, and relative pulse spread of the X-ray. The research revealed the ultra-short pulse emission characteristics and influencing factors of the CNT cold cathode X-ray source, thereby promoting its development in pulse applications.
Article
Optics
Yuhang He, Zhiheng Xu, Hongyu Wang, Mingxin Bian, Yunpeng Liu, Xiaobin Tang
Summary: Radioluminescent nuclear battery, a small power device based on radioluminescence, provides stable energy supply for equipment in extreme environments. However, weak radioluminescence intensity has limited its development. This work proposes a method of adding SiO2 nanosphere coating to enhance the radioluminescent intensity and improve the output performance of the battery. The SiO2 nanosphere coating promotes the radiative transition rate and quantum efficiency of the ZnS:Cu phosphor, resulting in a 62.32% increase in radioluminescent intensity and a 51.59% enhancement in maximum output power of the battery under the same X-ray excitation condition.
JOURNAL OF LUMINESCENCE
(2023)
Article
Nuclear Science & Technology
Ren-Yao Wu, Chang-Ran Geng, Feng Tian, Zhi-Yang Yao, Chun-Hui Gong, Hao-Nan Han, Jian-Feng Xu, Yong-Shun Xiao, Xiao-Bin Tang
Summary: In this study, a novel and fast three-dimensional reconstruction method for a Compton camera was proposed and analyzed. The CSS-BP-SC method can quickly perform the back-projection process of the Compton cone and can be used to precompute the LM-MLEM. The results showed that the proposed method can obtain imaging results comparable to those of the traditional reconstruction algorithm while significantly increasing the speed.
NUCLEAR SCIENCE AND TECHNIQUES
(2023)
Article
Energy & Fuels
Jiyu Wang, Xiaobin Tang, Sheng Zhao, Haoyue Deng, Chen Ji, Hongyu Wang, Yunpeng Liu, Xinyi Li, Hongbo Lu, Zhiheng Xu
Summary: This paper proposes a method to improve the irradiance uniformity issue in radioisotope thermophotovoltaic (RTPV) through optimizing curled reflectors using finite-element method. Simulation results show that with the optimized reflectors, the irradiance uniformity of the cell array can reach 87.5%, the total output power reaches 88.12 W, which is 39.8% higher than before optimization, and the mismatch loss is reduced by 69.2%. In addition, it is found that the proposed structure can still generate higher output power than the conventional structure even at reflectivity as low as 70%. Lastly, a RTPV prototype with reflectors is developed and tested to verify the effect of irradiance improvement. This research provides a new idea for the development of high-efficiency power supplies.
Article
Chemistry, Multidisciplinary
Su-Wei Wang, Yu-Long Zhang, Chao Wu, Lei Xiao, Gao-Ming Lin, Yu-Bing Hu, Ga-Zi Hao, Hu Guo, Guang-Pu Zhang, Wei Jiang
Summary: The formation mechanism and crystal morphology trend of internal defects in melt-cast explosives were simulated under different process conditions. The effects of solidification treatment on molding quality were investigated. A combination of treatment technologies promoted controlled migration of internal defects and improved the heat transfer efficiency, achieving efficient manufacturing of microdefect or zero-defect grains.
Article
Chemistry, Physical
Shifan Zhu, Zhiheng Xu, Feida Chen, Haijun Tao, Xiaobin Tang, Yuqiao Wang
Summary: The dynamic process of electrodeposition at the interface of planar microelectrodes is visualized and analyzed through finite element simulation, revealing the vertical potential distribution and optimizing the deposition of nickel cobalt layered double hydroxides. The assembled flexible quasi-solid microsupercapacitors show high energy density and long-term cycling stability.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Engineering, Biomedical
Yang Han, Changran Geng, Yuanhao Liu, Renyao Wu, Mingzhu Li, Chenxi Yu, Saverio Altieri, Xiaobin Tang
Summary: This study aimed to quantify the relative biological effectiveness (RBE) of compound particles (alpha and lithium) in boron neutron capture therapy (BNCT) and calculate DNA damage. The results showed that DNA damage induced by compound particles increased as the cell radius decreased, and the impact of boron concentration on RBE diminished beyond a certain threshold.
PHYSICS IN MEDICINE AND BIOLOGY
(2023)
Review
Chemistry, Multidisciplinary
Shifan Zhu, Lili Song, Zhiheng Xu, Feida Chen, Haijun Tao, Xiaobin Tang, Yuqiao Wang
Summary: This paper reviews the progress in using theoretical design and experimental verification to develop catalysts with high activity, low cost, and long-term life. The three typical oxygen evolution catalytic mechanisms and the commonly used tools and descriptors in theory as well as electrochemical techniques and characterizations in experiments are discussed. The strategy of combining theoretical design and experimental verification can shed light on the design, preparation, and application of advanced OER catalysts.
CHEMISTRY-A EUROPEAN JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Yong Kou, Guangpu Zhang, Lei Xiao, Peng Luo, Yanping Xin, Yubing Hu, Junqing Yang, Hongxu Gao, Fengqi Zhao, Wei Jiang, Gazi Hao
Summary: The dispersion of nanocatalytic materials greatly affects their catalytic performance. In this study, a method for evaluating the dispersion of nanomaterials was established based on solid UV curves. The dispersion of nano-CuO in nano-CuO/superfine AP composites was enhanced with increased grinding strength and time, and was positively correlated with its catalytic performance.
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)
