Article
Nanoscience & Nanotechnology
Qiqi Li, Fei Guo, Linjiang Chai, Yanlong Ma, Luyao Jiang, Qiuyu Chen, Chengquan Zhang, Haiding Liu, Dingfei Zhang, Bin Jiang
Summary: Laser surface remelting (LSR) treatment refined the grains and redistributed the secondary phase of Mg-6.2Y magnesium alloy, resulting in significant improvement of the mechanical properties of the surface.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Materials Science, Multidisciplinary
Leonie Gomell, Tobias Haeger, Moritz Roscher, Hanna Bishara, Ralf Heiderhoff, Thomas Riedl, Christina Scheu, Baptiste Gault
Summary: The microstructure of a material plays an important role in its thermoelectric performance. In this study, the researchers investigated the microstructure and local properties of the Heusler-Fe2VAl compound using advanced microscopy techniques. They found that laser surface remelting can be used to manipulate the microstructure, leading to improved thermoelectric performance at room temperature.
Review
Optics
Syed Masood Arif Bukhari, Naveed Husnain, Farrukh Arsalan Siddiqui, Muhammad Tuoqeer Anwar, Azhar Abbas Khosa, Muhammad Imran, Tahir Hassan Qureshi, Rauf Ahmad
Summary: Surface defects have a significant impact on material strength and performance. Laser surface remelting is a computer-based technique that enhances surface and mechanical properties of treated parts, such as corrosion resistance, microhardness, wear resistance, fatigue strength, and tensile strength. It has become essential for parts manufactured by Additive Manufacturing processes to improve surface quality and mechanical properties.
OPTICS AND LASER TECHNOLOGY
(2023)
Article
Materials Science, Coatings & Films
Guosong Zhang, Tao Liu, QiangHao Yin, Wenchao Wang, Xiaojie Song, Weimin Huang, Hongyun Zhang
Summary: By adjusting the B-Si ratio and laser remelting, the microstructure, phase composition, and properties of high-entropy alloy coatings can be effectively improved, enhancing their wear resistance.
SURFACE & COATINGS TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Peng Lyu, Haoming Yuan, Feiyu Ge, Tao Peng, Qi Gao, Siyang Guo, Qingfeng Guan, Haixia Liu, Jintong Guan, Xinlin Liu
Summary: The microstructure of AlCoCrFeNiNbx (x = 0, 0.1, and 0.5) high-entropy alloys is regulated by laser remelting (LR) to improve their properties. The addition of Nb element promotes the formation of Laves phase, and laser remelting treatment significantly refines the grains and forms dense remelting layers on the surface. The hardness, wear resistance, and corrosion resistance of the alloys are improved with the increase of Nb content and LR treatment.
MATERIALS CHARACTERIZATION
(2023)
Article
Chemistry, Physical
Xiaofeng Li, Yinghao Feng, Xu Wang, Huiqi Xie, Xiaohui Yang, Bin Liu, Yuankui Cao
Summary: In this study, AlCrFeNiMnx high-entropy alloy coatings were successfully prepared on a copper substrate by laser cladding, with the addition of Mn leading to refined grains and improved mechanical properties, especially when the Mn content was 0.5.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
Guangli Bi, Siqi Chen, Jing Jiang, Yuandong Li, Tijun Chen, Xiao-Bo Chen, Duyao Zhang, Dong Qiu, Mark Easton
Summary: The effects of laser surface remelting (LSR) on microstructure and corrosion properties of as-cast Mg-12Dy-1.1Ni alloy were investigated. LSR treatment resulted in grain refinement and the formation of a continuous network of 18R-LPSO phase on dendrite boundaries, leading to improved corrosion resistance of the alloy.
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2023)
Article
Materials Science, Coatings & Films
Yuan Liu, Yao Li, Haonan Kou, Yongnan Chen, Fengying Zhang, Xuding Song
Summary: The effect of laser surface remelting on the microstructure and mechanical properties in a hot-pressing sintered Mo-Si-B alloy was studied. The fusion zone exhibited a dendritic structure with coarse alpha-Mo dendrite stems and nano-sized interdendritic eutectics. The combination of electron backscattered diffraction and nanoindentation techniques allowed for the determination of mechanical properties of individual phases, showing that the fusion zone had better indentation fracture toughness due to the bimodal distribution of alpha-Mo grain size.
SURFACE & COATINGS TECHNOLOGY
(2022)
Article
Chemistry, Physical
Wei Zhao, Jiacheng Yu, Mindong Hu, Honglei Hu, Junting Luo
Summary: Forced cooling system with three cooling plates was used to assist laser remelting of Fe-based amorphous composite coatings. Results showed that an increase in temperature gradient of the cooling device led to a decrease in content and size of precipitated crystalline phase and finer crystallites. Lowering the temperature of the cooling plate improved wear and corrosion resistance of the coatings due to increased amorphous phase content and solid solution strengthening of the alpha-Fe phase. However, excessively low temperature resulted in decreased hardness of the coatings.
Article
Optics
Yiming Huang, Yuxue Yuan, Yingchao Feng, Jinping Liu, Lijun Yang, Lei Cui
Summary: The active laser welding and active laser wire filling welding of 5083 aluminum alloys with low laser power were investigated. The effect of activating flux and process parameters on weld quality, microstructure, and mechanical properties were analyzed. The results showed that filler wires improved joint morphology and strength.
OPTICS AND LASER TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Zhiguang Zhu, Fern Lan Ng, Hang Li H. Seet, Wenjun Lu, Christian Liebscher, Ziyuan Rao, Dierk Raabe, Sharon Mui Ling Nai
Summary: By utilizing selective laser melting and heat treatment, high-strength AlZnMgCuScZr alloys with an unprecedented strength-ductility synergy were successfully fabricated, paving the way for designing and fine-tuning SLM-produced aluminum engineering components exposed to high mechanical loads.
Article
Materials Science, Multidisciplinary
Jun Song, Qian Tang, Qixiang Feng, Quanquan Han, Shuai Ma, Hao Chen, Fuyu Guo, Rossitza Setchi
Summary: By remelting during the SLM process, the relative density of 18Ni-300 maraging steel can be increased and large-sized pores can be eliminated. Remelting can slightly coarsen the average grain sizes, increase the fraction of low-angle grain boundaries, and improve ductility and microhardness.
MATERIALS CHARACTERIZATION
(2022)
Article
Materials Science, Multidisciplinary
Liang Zhang, Xiaoxiao Shi, Ning Li, Lun Zhao, Wei Chen
Summary: This paper investigates the microstructure and mechanical properties of a novel Inconel 718 strut tensile sample fabricated using selective laser melting. The results show that the strut sample has higher and more homogeneous mechanical properties compared to standard tensile samples. However, there are measurement errors in the novel strut tensile test that need to be addressed for future improvements.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2021)
Article
Materials Science, Ceramics
Dianjun Sun, Xiangqing Wu, Faqin Xie, Peng He, Zheng Li, Jiayu He
Summary: Bio-ceramic coatings were successfully fabricated on TC6 alloy substrates using laser remelting and micro-arc oxidation. The coatings were characterized and analyzed for their surface morphology, composition, and residual stress distribution. It was found that increasing the content of the rutile TiO2 phase improved the quality of the coatings and reduced porosity. The fretting wear test showed that the laser remelted MAO coating exhibited the best performance against fretting wear in a simulated body fluid environment, with the wear mechanism attributed to delamination and fatigue wear.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Physical
A. N. Jinoop, C. P. Paul, J. Ganesh Kumar, V Anilkumar, R. Singh, S. Rao, K. S. Bindra
Summary: This study investigates the microstructure and elevated temperature mechanical properties of Hastelloy-X bulk structures built using Laser Directed Energy Deposition (LDED). The results show differences in microstructure between as-built and heat-treated samples, and variations in mechanical properties with test temperature. Heat-treated samples exhibit similar yield strength to conventionally processed Hast-X, while other mechanical properties vary with temperature.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Multidisciplinary
Alaauldeen A. Duhduh, Chou-Yi Hsu, Mustafa Humam Sami, Anupam Yadav, Russul Thabit, Sagr Alamri, Abdelmajeed Adam Lagum, Ali A. Rajhi
Summary: Density functional theory (DFT) calculations were used to investigate the application of a Zn12O12 nanocage as an anode material in Na-ion batteries (NIBs). The pure nanocage showed low performance, but encapsulating a chloride led to a significant increase in voltage, surpassing carbon nanotubes and C24 fullerene.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2024)
Article
Chemistry, Multidisciplinary
Hiroyuki Ikemoto, Toshihiko Fujimori, Takafumi Miyanaga, Reo Kawaguchi, Koki Urita, Masao Tabuchi
Summary: This study investigated the structures of two Se chains confined inside single-walled carbon nanotubes (SWCNTs), revealing that the chains were linear and parallel. The covalent bond between Se and SWCNT was found to be stronger than that between Se and trigonal Se (t-Se). The interaction between chains was attributed to the overlap of electronic orbitals, and the disappearance of this overlap in the encapsulated Se chains enhanced the covalent bonds.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2024)
Article
Chemistry, Multidisciplinary
Suman Yadav, Atul Gour, Sadhna Singh
Summary: In this study, we investigated the electronic and thermoelectric properties of rare-earth half-Heusler XPtBi (X = Gd, Nd, Y) topological semimetals compounds using density functional theory. Our results indicate that the inclusion of spin orbit coupling has a significant impact on the electronic band structure and spin order, making it promising for spintronic applications. We found different topological states in these compounds and observed enhanced power factor in YPtBi with the inclusion of SOC.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2024)
Article
Chemistry, Multidisciplinary
Takahiro Ozawa, Hiroshi Nakanishi, Koichi Kato, Ryota Shimizu, Taro Hitosugi, Katsuyuki Fukutani
Summary: In this study, we elucidate the hopping mechanism of hydrogen at intermediate temperature using a combination of experimental data and theoretical calculations. We find that the transition from thermal hopping to quantum tunneling is attributed to resonant tunneling, which is achieved through the resonant tunneling of discrete vibrational states between the edge octahedral site and the tetrahedral site. We also demonstrate that the tunneling rate can be tuned by energy level matching.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2024)
Article
Chemistry, Multidisciplinary
Ankita Nandi, Ritam Mehera, Moumita Mandal, Paramesh Chandra, Swapan K. Mandal, Naznin Ara Begum, Chandan K. Jana, Nilanjana Das
Summary: In this study, stable biogenic ZnO nanoparticles were successfully synthesized using a biosynthesis method, and their effects on oxidative stress parameters in Saccharomyces cerevisiae were investigated. The results demonstrate that high concentrations of ZnO nanoparticles may induce oxidative stress conditions, suggesting caution in their extensive use.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2024)
Article
Chemistry, Multidisciplinary
P. S. Dighe, A. A. Bhoite, V. L. Patil, N. L. Tarwal, P. B. Sarawade
Summary: In this study, Ni-Co layered double hydroxide (LDH) nanocomposites with excellent electrochemical properties were prepared using hydrothermal technique. The as-obtained material exhibited high specific capacitance and remarkable energy density, showing great potential for supercapacitor applications.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2024)
Article
Chemistry, Multidisciplinary
Muhammad Danish, Misbah ul Islam, Farooq Ahmad, M. Nadeem Madni, M. Jahangeer
Summary: This study synthesized M-type hexaferrite and graphene oxide using sol-gel auto-combustion and modified Hummer process. The structure and morphology of the materials were characterized by XRD and SEM. The experimental results showed that coupling magnetic ferrite with graphene oxide can tune the electromagnetic properties of the materials, with potential applications in various fields.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2024)
Article
Chemistry, Multidisciplinary
Abrar U. Hassan, Yuchuan Li
Summary: This study presents a new design strategy of N-doped fused ring electron acceptors for organic dye Y123 in photovoltaic and optical devices. The evaluation of five novel dyes shows their positive contributions to charge transfer. Impressive photovoltaic performance is observed in one of the dyes, with high light harvesting efficiency and maximum power output.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2024)
Article
Chemistry, Multidisciplinary
Ashvin Kanzariya, Shardul Vadalkar, Sourav Kanti Jana, L. K. Saini, Prafulla K. Jha
Summary: Graphene quantum dots (GQDs) with quantum confinement and size effects show great potential for sensing applications. This computational study investigates the adsorption performance of pristine and transition metal-doped coronene GQDs to hazardous gases. The results suggest that doping with chromium (Cr) or nickel (Ni) enhances the gas adsorption performance, with Cr-doped GQDs showing strong interaction with gas molecules and potential as a gas remover, and Ni-doped GQDs showing potential as a CNCl sensor.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2024)
Article
Chemistry, Multidisciplinary
Vladimir V. Poborchii, Victor A. Sachkov, Alexander A. Shklyaev, Alexander V. Fokin, Pavel I. Geshev
Summary: This study investigates the polarized optical absorption and Raman spectra of -5 nm diameter tellurium nanowires confined in chrysotile asbestos nanotubes. The results show a strong interaction between the nanowires and light polarized parallel to the nanowires, while a weaker interaction is observed for light polarized perpendicular to the nanowires. This has significant implications for photonic and photo-electric applications.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2024)
Article
Chemistry, Multidisciplinary
Stanislav Cichon, Frantisek Maca, Vaclav Drchal, Katerina Horakova, Irena Kratochvilova, Jan Lancok, Vladimir Chab, Patrik Cermak, Jiri Navratil, Cestmir Drasar
Summary: In this study, a reliable method for preparing high-quality single crystal substrates doped with Bi2Se3 was developed. The electronic properties and chemical states of atoms in the substitutional position and native defects in the topological insulator were analyzed using experimental and theoretical methods. The relationship between the position of the Dirac cone and valence band maximum was explored and discussed.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2024)
Article
Chemistry, Multidisciplinary
Ikkurthi Kanaka Durga, Dasha Kumar Kulurumotlakatla, Tholkappiyan Ramachandran, Yedluri Anil Kumar, D. Amaranatha Reddy, K. V. G. Raghavendra, Asma A. Alothman, Sunkara Srinivasa Rao
Summary: Nickel molybdate oxide and tungsten trioxide have potential as electrode materials for supercapacitors, but their poor conductivity and fast capacitance fading limit their performance. By building a hierarchical nanoflower structure, the electrochemical performance of the supercapacitor is enhanced.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2024)
Article
Chemistry, Multidisciplinary
Elnaz Saadinia, Mohammad Almasi Kashi, Amir H. Montazer
Summary: Fe-based nanowires containing nonmagnetic elements, fabricated using a pulse electrodeposition method in porous anodic alumina membranes, exhibit magnetic tunability. The magnetic properties of Fe100-xSnx NW arrays, with a diameter of about 35 nm, such as coercivity and squareness values, decrease with increasing Sn content. The structure of the FeSn NWs, dominated by Fe or FeSn alloy crystal phase, can be either single domain or pseudo-single domain states depending on the Sn content.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2024)
Article
Chemistry, Multidisciplinary
Xinkai Liu, Tingting Liu, Yuanliang Zhou, Jing Wen, Jinmei Dong, Chenggong Chang, Weixin Zheng
Summary: CuS-Mg/S-BC composites modified by one-pot sulfurization exhibited higher removal efficiency in adsorption and photocatalytic removal of dyes, thanks to the functional groups and vacant sites formed at the interface for enhanced adsorption and photon capture.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2024)
Article
Chemistry, Multidisciplinary
Yixing Hao, Fang Zhu, Hao Cheng, Sridhar Komarneni, Jianfeng Ma
Summary: A magnetic porous composite catalyst synthesized from CoFe2O4 and CuS showed high degradation efficiency for organic pollutants under visible light conditions, using non-radical degradation as the main pathway.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2024)