Article
Chemistry, Physical
Badriah Albarzan, Mohamed Y. Hanfi, Aljawhara H. Almuqrin, M. Sayyed, Haneen M. Alsafi, K. A. Mahmoud
Summary: The study investigated the mechanical and radiation shielding properties of a quaternary Na2O-CaO-SiO2-TiO2 glass system used in radiation protection, evaluating the elastic moduli of the glass samples using the Makishima-Mazinize model. It was found that the elastic moduli, dissociation energy, and packing density increased as the TiO2 content increased.
Article
Construction & Building Technology
M. Humaid, J. Asad, A. Aboalatta, S. K. K. Shaat, H. Musleh, Kh. Ramadan, Y. Alajerami, N. Aldahoudi
Summary: A novel technique was developed to produce borosilicate glass samples with varying concentrations of PbO from 90% solid waste. The method involved obtaining PbO from spent lead-acid batteries and using waste glass from vehicles as the glass matrix. The resulting glass samples demonstrated potential as an alternative to traditional manufacturing processes and had strong shielding properties against gamma and neutron radiation.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Abuzer Acikgoz, Gokhan Demircan, Bulent Aktas, Serife Yalcin, Nuri Yorulmaz, Demet Yilmaz
Summary: The study investigated the impact of CeO2 and Er2O3 on the physical, structural, and mechanical properties of a B2O3-Na2O-Al2O3 glass composition. CeO2 and Er2O3 doping affected radiation shielding properties and optical properties, with 1 mol% Er2O3 showing a better reduction in reflectivity of gamma rays compared to 1 mol% CeO2. The structural and mechanical properties of the doped borate glasses were also examined and compared.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2022)
Article
Chemistry, Physical
Nimitha S. Prabhu, M. I. Sayyed, Aljawhara H. Almuqrin, Mayeen Uddin Khandaker, K. A. Mahmoud, Sabina Yasmin, Sudha D. Kamath
Summary: This study investigates the impact of 0.5-1.5 mol% Er3+ ions on the structural, optical, mechanical, and radiation shielding properties of a borate glass system. The doping of Er3+ ions leads to a decrease in network rigidity and bandgap, affecting the mechanical and optical properties of the glass. Additionally, the glasses show promising radiation shielding characteristics, comparable to some commercial shielding glasses.
RADIATION PHYSICS AND CHEMISTRY
(2022)
Article
Chemistry, Physical
N. Intachai, N. Wantana, S. Kaewjaeng, W. Chaiphaksa, W. Cheewasukhanont, K. T. Htun, S. Kothan, H. J. Kim, J. Kaewkhao
Summary: The radiation shielding, physical, and optical properties of a glass formula were studied, and it was found that the glass samples exhibited increased density, transparency, and radiation shielding properties with higher gadolinium oxide concentration. The best radiation shielding performance was observed at 15% gadolinium oxide concentration. This research is of great significance for the development of efficient radiation shielding materials.
RADIATION PHYSICS AND CHEMISTRY
(2022)
Article
Chemistry, Physical
Maryam Yousefi, Roya Boodaghi Malidarre, Iskender Akkurt, Maria Ahmadi, Vahid Zanganeh
Summary: After the use of ionizing radiation in various fields, scientists have focused on developing protection methods due to its dangers to the human body. Shielding radiation using effective materials is the most important method, in addition to time and distance. This study analyzed the physical, optical, mechanical, and radiation shielding properties of B2O3-Li2O glasses coded as G-1 to G-4, and found that Li2O has a positive influence on the radiation shielding characteristics. The study also assessed the relationship between Li2O concentration and structural and mechanical changes in the glasses.
RADIATION PHYSICS AND CHEMISTRY
(2023)
Article
Optics
R. El-Mallawany, W. M. Abou-Taleb, MA. Naeem, ME. Krar, S. Talaat
Summary: In this study, tellurite glasses with varying Bi2O3 concentrations were synthesized and their optical properties and gamma-ray shielding capabilities were investigated. The glass sample containing 20 mol% Bi showed the highest absorption for gamma radiation at 15 keV, attributed to the high atomic number of Bi. The results indicated that Bi-doped glasses are effective for shielding against gamma radiation.
Article
Materials Science, Ceramics
Recep Kurtulus, Taner Kavas, K. A. Mahmoud, Iskender Akkurt, Kadir Gunoglu, M. I. Sayyed
Summary: This study examined the potential use of waste soda-lime-silica (SLS) glass with varying MoO3 content in radiation shielding applications. The glass samples were found to have an amorphous structure and transparent appearance, with density and refractive index values increasing with higher MoO3 content. Experimental evaluation of the gamma-ray shielding ability showed an increase in linear attenuation coefficient (LAC) with increasing MoO3 ratio, confirming good agreement between experimental and theoretical calculations.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2021)
Article
Materials Science, Multidisciplinary
R. El-Mallawany, W. M. Abou-Taleb, M. A. Naeem, S. M. Kotb, M. E. Krar, S. Talaat
Summary: Boro-tellurite glasses with different compositions were synthesized and their physical and optical properties were measured. Among the prepared glasses, the [55TeO(2) - 25B(2)O(3) - 10Bi(2)O(3) - 10Li(2)O] sample was found to be the best gamma-ray shielding material.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Materials Science, Multidisciplinary
Zehra Nur Kuluozturk, Recep Kurtulus, Nilgun Demir, Taner Kavas
Summary: In this study, we investigated the effects of lanthanum oxide (La2O3) on barium-lead-borosilicate (BLBS) glass systems. We found that increasing La2O3 content had a positive influence on glass density and molar volumes. In terms of gamma-ray attenuation characteristics, the linear attenuation coefficient (LAC) increased with the addition of La2O3, with the La-20 sample showing the highest protection ability. Our experimental results were consistent with simulations and previous studies. Furthermore, the glass samples with added La2O3 showed potential for photon shielding applications.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2022)
Article
Physics, Condensed Matter
Yasser Saleh Mustafa Alajerami, David A. Drabold, M. H. A. Mhareb, Katherine Leslee A. Cimatu, Gang Chen, K. M. Abushab
Summary: New bismuth borate glass systems containing various concentrations of cadmium oxide were prepared using the melt-quenching method, showing good transparency and radiation shielding properties. Experimental results were in good agreement with simulation, with the mean free path of S4 system showing promising results compared to barite and chalcocite concretes.
PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS
(2021)
Article
Chemistry, Physical
Nada Alfryyan, Z. A. Alrowaili, Sultan Alomairy, Islam M. Nabil, M. S. Al-Buriahi
Summary: This study explores the radiation shielding properties of an xGd(2)O(3)- (60-x)ZnO-15B(2)O(3)-5Al(2)O(3)-20SiO(2) glass system using FLUKA and XCOM software. The study finds that the glass system exhibits high shielding potential for gamma rays and neutrons, making it suitable for applications in nuclear and medical industries.
Article
Materials Science, Multidisciplinary
N. Alonizan, M. Kh. Hamad, Amnah Alwabsi, Nidal Dwaikat, M. H. A. Mhareb, M. I. Sayyed, Hammam Abdurabu Thabit, Y. S. Alajerami, Ghaseb N. Makhadmeh
Summary: This study fabricated four glass systems based on barium-tellurite oxide (BaO-TeO2) glass using the melt-quench technique. Various metal oxides, including tungsten oxide (WO3), yttrium oxide, strontium oxide, and lithium oxide, were added to enhance the BaO-TeO2 glass system. Experimental investigations were conducted to study the physical, optical, and radiation shielding properties of these oxide additives. The addition of WO3 showed superior physical and optical properties compared to other glasses, leading to the best shielding performance for radiation shielding applications.
Article
Chemistry, Physical
Canel Eke, M. S. Al-Buriahi
Summary: The effects of Li2O, MgO, ZnO, and CaO on the radiation shielding properties of BSNZ-MO glasses were studied. BSNZ-Zn demonstrated the highest shielding performance, while BSNZ-Li showed the lowest. BSNZ-Zn had the smallest HVL and TVL among all the glasses. The Z(eff) and Neff values of BSNZ-MO glasses varied with different modifier oxides. BSNZ-Zn exhibited the best TMSP for protons, alpha particles, and heavy carbon ions, while BSNZ-Li had the worst. The R values for electrons were highest for BSNZ-Mg and lowest for BSNZ-Zn. Moreover, BSNZ-Li had the highest FNRC, while BSNZ-Mg had the lowest among the BSNZ-MO glasses.
RADIATION PHYSICS AND CHEMISTRY
(2022)
Article
Green & Sustainable Science & Technology
Mohamed Ehab, Elsayed Salama, Ahmed Ashour, Mohamed Attallah, Hosam M. Saleh
Summary: This study investigates the radiation shielding capability and optical properties of a SiO2-ZnO-Na2CO3-H3BO3-BaCO3 glass composite with varying concentrations of barium carbonate. Experimental and theoretical analysis shows that as the concentration of BaCO3 increases, parameters such as mass density, refractive index, and dielectric constant also increase. However, the optical bandgap decreases with increasing barium concentration. The results also demonstrate that the mass attenuation coefficients increase with BaCO3 concentration. The study suggests that the prepared glass composite could be suitable for transparent shielding applications.
Article
Engineering, Civil
Muge Albayrak, Daniel Willi, Sebastien Guillaume
Summary: This study determines the precision and accuracy of the QDaedalus system based on observations at two locations in Switzerland. The precision was found to be 0.1'' through extensive observations, while the accuracy was established through parallel observations and found to be within 0.1''. Notably, a large systematic trend was observed in the N-S DoV data at one of the test stations.
Article
Food Science & Technology
Hamza Alasalvar, Murat Kaya, Serap Berktas, Bulent Basyigit, Mustafa Cam
Summary: This study investigated the extraction of bioactive compounds from lemon peel using pressurised hot water extraction (PHWE). The results showed that PHWE at specific temperature and time conditions could selectively extract eriocitrin and hesperidin, resulting in higher total phenolic content and antioxidant capacities compared to conventional extraction methods.
INTERNATIONAL JOURNAL OF FOOD SCIENCE AND TECHNOLOGY
(2023)
Article
Physics, Multidisciplinary
Gokhan Demircan, Abuzer Acikgoz, Serife Yalcin, Emine Aytar, Mehmet Vehbi Balak, Bulent Aktas
Summary: Perimidine ruthenium complexes were synthesized and used to produce Ru-doped ZnO thin films. The films were characterized using various techniques, revealing their hexagonal wurtzite structure and compressive residual stress. With increasing Ru content, the crystal quality improved and the residual stress decreased. The films showed high transmittance in the visible range, and the bandgap varied with Ru doping. This research demonstrates the potential of high conjugated structures as dopant materials for ZnO thin films and their application in nano-optoelectronic devices.
BRAZILIAN JOURNAL OF PHYSICS
(2023)
Article
Engineering, Marine
Gokhan Demircan, Mustafa Ozen, Murat Kisa, Abuzer Acikgoz, Yusuf Isiker
Summary: This study investigated the effects of freeze-thaw test on glass fiber-reinforced epoxy composite coatings with nano-gelcoat. The mechanical properties and thermal stability of the coatings were examined through various tests and analyses. Results showed that the addition of nano TiO2 improved water absorption property and preserved mechanical properties. However, the presence of nanoclay reduced the protection property of the pure gelcoat. Statistical analysis confirmed the significance of the experimental results.
Article
Geography, Physical
Yunus Kaya, Halil Ibrahim Senol, Abdurahman Yasin Yigit, Murat Yakar
Summary: Determining car density in parking lots is crucial for executing existing management systems and making precise plans for the future. In this study, high-resolution UAV images and deep learning methods were used to detect cars in parking lots. Two deep learning approaches, YOLOv3 and Mask R-CNN, were tested using the deep learning tool of Esri ArcGIS Pro. The performance of the algorithms was evaluated based on metrics such as recall, F1 score, precision ratio/uncertainty accuracy, and average producer accuracy.
PHOTOGRAMMETRIC ENGINEERING AND REMOTE SENSING
(2023)
Article
Environmental Sciences
Ibrahim Yenigun, Ali Volkan Bilgili, Halil Ibrahim Senol, Abdullah Yenigun
Summary: Underground water resources are vital for mankind, used for drinking water and agricultural irrigation. This study investigates the changes in groundwater quality in the Upper Mesopotamian region, which has a semi-arid climate and important past civilizations. Samples from selected wells in the Mardin Kiziltepe Plain were collected and analyzed for water quality classifications. The results show no non-standard values and will provide important data for future irrigation projects.
ENVIRONMENTAL MONITORING AND ASSESSMENT
(2023)
Article
Archaeology
Nizar Polat
Summary: This study used unmanned aerial vehicles (UAVs) to investigate ancient water collection and storage systems near the Karahantepe Neolithic Site. The use of digital elevation models (DEMs) allowed for the examination of cisterns, pools, and channels in the region. Hydrological analysis provided a comprehensive understanding of water flow patterns. The findings suggested that the channels leading to cisterns followed a meandering slope and culminated in pools, possibly serving as sedimentation ponds. The study highlighted the benefits of utilizing UAV technology in archaeology and inferred that the water collection and storage system in the region was intentionally constructed by ancient civilizations.
ENVIRONMENTAL ARCHAEOLOGY
(2023)
Article
Materials Science, Multidisciplinary
Gokhan Demircan, Enes Furkan Gurses, Bulent Aktas, Serife Yalcin, Abuzer Acikgoz, Gokhan Ceyhan, Mehmet Vehbi Balak
Summary: Ti and Si doped ZnO thin films were fabricated using the sol-gel spin coating method. The structural and optical properties of the films were investigated using various characterization techniques. The results showed that the surface morphology consisted of ZnO fiber structures and the thickness of the films increased with Ti content. XRD and Raman spectra confirmed the retention of the hexagonal wurtzite crystal structure, while the crystallinity decreased. The films exhibited high optical transmittance and a redshift in the UV spectrum with increasing Si concentration.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Mehmet Fatih Dilekoglu, Mazlum Yapici
Summary: The research investigated the performance of a new method for synthesizing super activated carbon from sheep manure in the adsorption of the naproxen micropollutant. Chemical activation with ZnCl2 as an activator was used to produce activated carbon, with various parameters such as impregnation rate, activation temperature, and duration examined. Characterization of the produced activated carbons was done using FTIR, SEM, and BET measurements, with a surface area of 2170 m2 g-1 determined. The adsorption of naproxen was found to be influenced by solution pH, initial concentration, and the amount of activated carbon.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Environmental Sciences
Gokhan Demircan, Murat Kisa, Mustafa Ozen, Abuzer Acikgoz, Yusuf Isiker, Emine Aytar
Summary: To address the critical issue of environmental sustainability, the application of nano-gelcoat has emerged as a promising approach to extend the service life and enhance the durability of glass fiber-reinforced polymer composites (GFRPs), thereby protecting the marine environment. Despite its potential, there is a lack of research on the experimental application of nano-gelcoat. In this study, the hydrothermal aging of nano-gelcoat-coated GFRPs was investigated, and the addition of nano-TiO2 was found to improve water resistance and maintain the mechanical properties of the composite.
MARINE POLLUTION BULLETIN
(2023)
Article
Surgery
Harun Gur, Onur Ismi, Yusuf Vayisoglu, Kemal Gorur, Murat Unal, Onurhan Guven, Cengiz Ozcan
Summary: This study retrospectively analyzed the demographic, clinical, surgical, and histopathological results and complications of 301 parotidectomies performed in southern part of Turkey. The study found that patients with malignant tumors had a higher mean age compared to patients with benign diseases. The mean age of Warthin tumor (WT) patients was significantly higher than pleomorphic adenoma (PA) patients. There was a significant male dominancy in WT compared to PA. The mean size of malignant tumors was significantly larger than benign tumors.
INDIAN JOURNAL OF OTOLARYNGOLOGY AND HEAD & NECK SURGERY
(2023)
Article
Multidisciplinary Sciences
Eyyup Murat Karakurt, Yan Huang, Mehmet Kaya, Huseyin Demirtas, Abuzer Acikgoz, Gokhan Demircan
Summary: The microstructure, corrosion resistance, and mechanical properties of Ti-20Zr alloy with different porosities were investigated. The results showed that the pore size and pore connectivity could be controlled by the sintering time and the space holder agent. The mechanical and corrosion properties of the alloy were influenced by the relative density.
ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING
(2023)
Article
Physics, Multidisciplinary
M. W. Aladailah, O. L. Tashlykov, A. Acikgoz, G. Demircan, M. Altarawneh
Summary: The role of dyprosium oxide (Dy2O3)-doped PbO-B2O3-SiO2 glasses in gamma and neutron radiation shielding was investigated. The glass samples were evaluated in terms of mass attenuation coefficient (MAC), half-value layer (HVL), effective atomic number (Z(eff)), and energy absorption build-up factors (EBF and EABF). The results showed that the 5 mol% Dy2O3-doped glass had significant gamma-ray shielding efficacy and stronger neutron shielding characteristics compared to other samples.
PRAMANA-JOURNAL OF PHYSICS
(2023)
Article
Physics, Multidisciplinary
A. Acikgoz, M. W. Aladailah, O. L. Tashlykov, G. Demircan, M. Kamislioglu, M. M. Yasar, H. Ozdogan, N. Yorulmaz
Summary: This study investigates the properties and shielding abilities of TeO2-MgO-Na2O-Nd2O3 glasses, as well as their effectiveness in stopping charged particles. The results show that the addition of neodymium improves the shielding abilities of the glasses. The study also analyzes the elastic properties of the glasses and finds that increasing the additive ratio improves their elasticity.
PRAMANA-JOURNAL OF PHYSICS
(2023)
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)