Article
Materials Science, Multidisciplinary
Yiwei Sun, Jie Liu, Jialong Wang, Kai Zhang, Li Chen, Menglong Hao
Summary: In this study, a Nb521 alloy with a relative density of 99.0% was successfully processed by SLM. The microstructure of the SLM processed Nb521 showed high dislocation density, dislocation cell structure, and a large population of low-angle grain boundaries. ZrO2 nano-dispersoids were found in the microstructure, while carbides were absent. Tensile testing revealed that the strengths of the SLM processed Nb521 were comparable or higher than those of conventionally processed counterparts, but the ductility was significantly lower due to high dislocation density, porosity, and oxide dispersoids.
Article
Materials Science, Ceramics
Jiandong Wang, Yuzhou Zeng, Weihang Fan, Liqun Li, Yunxiang Tong, Zhenqiang Wang, Fengchun Jiang
Summary: 20 vol% TiCp/Ti6Al4V composites were fabricated by laser melting deposition (LMD) method. The tensile strength of the composites was enhanced by regulating the dissolution of TiC particles. Higher heat input and pre-heating process facilitated the dissolution of TiC particles and promoted the formation of in-situ TiC phases, leading to an increase in tensile strength of the composites. The strengthening mechanism was attributed to the less susceptibility of in-situ TiC phases to cracking compared to undissolved TiC particles.
CERAMICS INTERNATIONAL
(2022)
Article
Nanoscience & Nanotechnology
Wei Han, Jin Min, Guoqing Dai, Yanhua Guo, Lili Chang, Yaoqi Wang, Ertuan Zhao, Zhonggang Sun, Hui Chang
Summary: Y2O3 particles act as nucleation sites in the additive manufacturing (AM) process of titanium alloy, refining and homogenizing its microstructure, and improving its properties. Excessive addition of Y2O3 can increase the probability of material fracture, so the amount of Y2O3 addition must be strictly controlled.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2023)
Article
Materials Science, Multidisciplinary
Cong Chen, Xuni Yin, Wei Liao, Yunzhong Xiang, Ming Gao, Yi Zhang
Summary: Increasing the laser scanning frequency and amplitude can improve the proportion of equiaxed grains and reduce the average diameter in the weld, leading to increased elongation. The scanning laser helps to enhance the strength of the weld fusion zone and provides a new way to improve the strength, safety, and service life of new energy power batteries through even distribution of elements and strengthening phases.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2021)
Article
Materials Science, Multidisciplinary
Qi Chaoqi, Du Yang, Yang Ping, Liu Zhengwu, Lyu Hongya, Zhao Kai, Guo Lijie
Summary: The effects of laser melting deposition (LMD) and LMD followed by solution-aging treatment on the properties of TC4 samples were investigated. The optimization of microstructure and solution treatment resulted in improved ductility and strength.
METALS AND MATERIALS INTERNATIONAL
(2022)
Article
Chemistry, Physical
Thanhung Nguyen, Ming Huang, Hongjun Li, Vannghia Tran, Sen Yang
Summary: The duplex phase Al0.25FeMnNiCrCu0.5 high entropy alloy was successfully fabricated through Laser Melting Deposition (LMD) process and its structural characteristics and tensile properties were extensively studied. The alloy exhibited a combination of high tensile strength and good ductility at room temperature.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
Junmei Huo, Bo He, Liang Lan
Summary: The high-Nb TiAl alloy was modified by adding boron particles, resulting in a crack-free alloy with improved room-temperature plasticity. The addition of boron prevented the rapid growth of beta crystals and refined the lamellar structure, resulting in improved mechanical properties. The TiB particles also hindered dislocation movement and increased the plasticity of the alloy.
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2023)
Article
Materials Science, Multidisciplinary
Yan Wang, Neng Li, Chonglin Jia, Wei Liu, Yu Wu, Chao Gao, Huaping Xiong
Summary: This study investigates the effects of solution treatment temperature on the microstructure and tensile properties of GH 3230 fabricated by laser melting deposition. The results show that the solution treatment improves the microstructure and enhances the ultimate tensile strength and elongation of the samples.
MATERIALS CHARACTERIZATION
(2022)
Article
Materials Science, Multidisciplinary
X. Cui, S. Zhang, C. H. Zhang, J. Chen, J. B. Zhang, S. Y. Dong
Summary: By comparing the microstructural features of 24CrNiMo low alloy steel fabricated by SLM and LMD processes using advanced electron microscopy and electron backscatter diffraction techniques, significant differences in crystallographic orientations, grain boundaries, grain sizes, and dislocations distributions were observed. These differences can result in varied mechanical properties, providing important references for process selection in practical industrial applications.
Article
Crystallography
Hepeng Li, Bin Guo, Yingying Zong, Debin Shan
Summary: This paper presents a comprehensive study on optimizing the mechanical properties of a laser-melting-deposition fabricated TC31 alloy and demonstrates its potential in aerospace applications.
Article
Nanoscience & Nanotechnology
Y. W. Guo, W. Wei, W. Shi, D. Xue, X. R. Zhou, S. P. Wen, X. L. Wu, K. Y. Gao, H. Huang, Z. R. Nie
Summary: In this study, Selective Laser Melting (SLM) was used to fabricate Erbium-modified AlSi7Mg alloy. The effects of laser volumetric energy density and focus shift on surface quality, internal defects, and microstructure were investigated. It was found that a higher volumetric energy density resulted in larger aluminum sub-cells and promoted the precipitation of supersaturated silicon elements. Laser focus shift changed the energy density and molten pool size, thereby affecting internal defects, sub-cell size, and eutectic silicon particle size. By using optimized processing parameters, a small amount of equiaxed grains formed at the boundary of the molten pool, which improved the refinement of columnar grains and enhanced mechanical properties. The alloy produced with SLM had a yield strength of 297 MPa, a tensile strength of 441 MPa, and an elongation of 8%.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Materials Science, Multidisciplinary
Jiamin Zhao, Liying Sun, Puguang Ji, Xiaoquan Yu, Long Chen, Shuo Liu, Kaihong Zheng, Fuxing Yin
Summary: This study investigates the effects of different scanning strategies on the microstructure and mechanical properties of Mn-Cu alloy additive manufacturing components. The results show that the scanning strategies can significantly impact the porosity, cracks, grain size, and grain growth direction of the alloy. By adjusting the scanning strategies, it is possible to achieve a columnar-to-equiaxed transition and improve the mechanical properties of the components. The findings highlight the feasibility of grain refinement and enhanced mechanical performance for Mn-Cu alloys through changes in scanning strategies.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Chemistry, Physical
Yangchuan Cai, Mengdie Shan, Yan Cui, Sunusi Marwana Manladan, Xin Lv, Lisong Zhu, Da Sun, Tai Wang, Jian Han
Summary: In this paper, laser melting deposition (LMD) technology was used to fabricate FeCoCrNi high entropy alloy (HEA), and the microstructure of the deposited HEA (FeCoCrNi-LMD) was systematically studied. The effects of tensile and compressive stresses on the material were investigated, revealing changes in the phase structure, grain boundaries, and crack formation under stress. The study demonstrated the influence of stress on the microstructure and properties of the high entropy alloy.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
Xina Huang, Shoubin Ding, Wen Yue
Summary: The effect of cryogenic treatment on the microstructure and mechanical properties of Ti6Al4V alloy fabricated using electron beam melting (EBM) was systematically investigated in this study. The results show that cryogenic treatment can refine the microstructure and enhance the mechanical properties of the alloy, especially with a soaking time of 48 hours.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Materials Science, Multidisciplinary
Jinglin Lu, Xin Lin, Nan Kang, Weidong Huang
Summary: In this study, bulk deposits of a Sc modified Al-Mn-Fe-Si alloy were prepared by selective laser melting (SLM) and analyzed for microstructural characteristics and tensile properties. After aging treatment, the ultimate tensile strength increased, but decreased as the aging temperature increased. The deposits exhibited a multiscale microstructure consisting of alpha-Al dendrite arrays and non-dendritic eutectic structures.
MATERIALS CHARACTERIZATION
(2021)
Article
Materials Science, Multidisciplinary
M. H. Nie, S. Zhang, Z. Y. Wang, T. Y. Yin, C. H. Zhang, C. L. Wu, D. X. Zhang
Summary: Laser cladding technology is an advanced material surface modification technique used for preparing high-performance coatings and repairing failed parts. This study investigated the effect of laser power on the microstructure, texture characterization, and corrosion resistance of a 17-4 PH stainless steel cladding layer. The results showed that the presence of defects such as pores in the cladding layer was influenced by the laser power. A model was established to explain the generation of pores and the Marangoni effect in laser cladding. The sample fabricated with a laser power of 2200 W exhibited better corrosion resistance due to fewer defects.
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2023)
Article
Materials Science, Multidisciplinary
X. D. Liang, S. Zhang, Z. Y. Wang, C. H. Zhang, D. X. Zhang, C. L. Wu
Summary: A gradient alloy steel prepared by laser melting deposition (LMD) undergoes changes in microstructure, grain refinement, decreased hardness and wear resistance, as well as reduced corrosion resistance after heat treatment.
MATERIALS SCIENCE AND TECHNOLOGY
(2023)
Article
Metallurgy & Metallurgical Engineering
Yu-yan Ren, Sheng-yuan Chen, Tong-yu Liu, Song Zhang, Ying-min Li
Summary: By adding different amounts of Ti into the electromagnetic stirred Al-18wt.%Mg2Si alloy, the effect of Ti on the microstructure and mechanical properties of the alloy was investigated. The results showed that the microstructure was refined after modification with Ti, due to the heterogeneous nucleation of TiAl3 particles on the alpha-Al matrix. Increasing the Ti content and holding time led to the refinement and then coarsening of the primary Mg2Si phase, resulting in an initially increasing and then decreasing trend of the alloy's mechanical properties. The optimal refinement effect of the primary Mg2Si phase and mechanical properties were achieved when 0.5wt.% Ti was added and the holding time was about 20 min.
Article
Optics
Binxun Li, Jin Du, Yujing Sun, Song Zhang, Qing Zhang
Summary: In this study, a three-dimensional finite element heat transfer model is developed using different heat source models to accurately predict the temperature distribution and melt pool geometry in selective laser melting (SLM). The experimental results show that the hybrid heat source model incorporating both surface and volumetric heat models can accurately simulate the peak temperature and melt pool geometry.
OPTICS AND LASER TECHNOLOGY
(2023)
Article
Chemistry, Organic
Cong-Cong Feng, Song-Lin Zhang
Summary: A convenient method for preparing aryl formates using difluorocarbene as a CO surrogate is described. This reaction proceeds through sequential O-difluoromethylation of phenol, followed by alpha-C-F bond functionalization of the resulting aryl difluoromethyl ether intermediate by phenol or moisture through fluorosemiacetal or orthoformate intermediates. Late-stage modification of biologically and materially active compounds is demonstrated.
ORGANIC & BIOMOLECULAR CHEMISTRY
(2023)
Article
Chemistry, Organic
Ming-Suo Dai, Zhen-Mei Zheng, Song-Lin Zhang
Summary: Cu(iii)-CF3 compounds are reported as novel coupling reagents for ester synthesis. Carboxylic acids are transformed to trifluoromethyl ester and acyl fluoride activated species that interact with each other. This study demonstrates the broad substrate scope and late-stage application of this method, providing new opportunities for interesting reactions without transferring a CF3 group to the products.
ORGANIC & BIOMOLECULAR CHEMISTRY
(2023)
Article
Chemistry, Analytical
Yi-Hong Liao, Song Zhang
Summary: This paper presents an absolute phase unwrapping method for high-speed three-dimensional shape measurement on a single-camera, single-projector structured light system. The method utilizes speckle-embedded three-step phase-shifted patterns to obtain the wrapped phase of the object and employs the Semi-Global Matching (SGM) algorithm to establish the coarse correspondence between images. A computational framework is then used to determine the fringe order pixel by pixel. The experimental results demonstrate the high-speed and high-quality 3D measurements achieved by the proposed method for complex scenes.
Article
Nanoscience & Nanotechnology
Cuicui Li, Yilun Cai, Jinrong Hu, Jiawei Liu, Honglian Dai, Qingfang Xu, Chitengfei Zhang, Xian Zhang, Kai Liu, Marina L. Kosinova, Takashi Goto, Rong Tu, Song Zhang
Summary: This study fabricated a SiC/graphene composite film via laser chemical vapor deposition (LCVD) as a dopamine (DA) sensor. The film exhibited excellent electrocatalytic activity, low detection limit, and high sensitivity. Its three-dimensional porous network structure enhanced electron transfer rate and catalytic active site exposure, while reducing interfacial resistance. Moreover, the film showed good biocompatibility for biomedical applications.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Chao Wang, Maomao Gong, Yongjun Cheng, Victor Kimberg, Xiao-Jing Liu, Oriol Vendrell, Kiyoshi Ueda, Song Bin Zhang
Summary: We suggest using a femtosecond X-ray pulse to trigger Resonant Auger scattering (RAS) in a distorted molecule, which provides information on the core-valence electronic transition and impresses a rich fingerprint of the electronic structure and nuclear configuration. By controlling the amount of molecular distortion with varied time delay, the RAS measurements imprint both their electronic structures and changing geometries. This work showcases a new alternative pump-probe technique for mapping the core and valence dynamics with ultrashort X-ray probe pulses.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Materials Science, Coatings & Films
H. F. Zhang, S. Zhang, C. L. Wu, C. H. Zhang, X. L. Bai, X. Y. Sun, J. Chen
Summary: An investigation was conducted to study the impact of molybdenum (Mo) content on the microstructure and properties of ferritic stainless steel (FSS) produced using laser melting deposition (LMD). Stainless steel specimens with varying Mo content were manufactured with LMD, and their microstructures, microhardness, wear resistance, and corrosion resistance were evaluated. The results showed that the phase composition remained the same, consisting of α-Fe and carbide M7C3. The addition of Mo resulted in refined grains, increased microhardness, improved wear resistance, and enhanced electrochemical corrosion performance.
JOURNAL OF THERMAL SPRAY TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
H. F. Zhang, S. Zhang, C. L. Wu, C. H. Zhang, X. L. Bai, X. Y. Sun, J. Chen
Summary: The WC-Co composite coating was successfully prepared on SS 316L using plasma arc welding technology. The composition, microstructure, and microhardness of the coating were analyzed. Corrosion behavior, including electrochemical corrosion, cavitation erosion, and erosion corrosion, was tested. The results showed that the WC-Co coating had excellent metallurgical bonding with the substrate, significantly increased microhardness, and improved corrosion resistance compared to SS 316L.
MATERIALS SCIENCE AND TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
Zehua Wang, Zhengbin Wang, Hongxiang Hu, Chunhua Zhang, Song Zhang, Yugui Zheng
Summary: This study investigates the effects of fluid parameters - flow velocity, impact angle, and sand impact frequency - on the erosion-enhanced corrosion of 90/10 copper-nickel alloy. By combining computational fluid dynamics simulation, wire beam electrode technology, and electrochemical measurements, the researchers find that under different flow velocities, erosion-enhanced corrosion is dominated by either the impact angle or the flow velocity. However, at intermediate flow velocities, both parameters have noticeable effects. Furthermore, the addition of sand particles increases the corrosion current density without changing the effects of flow velocity and impact angle, indicating the significant influence of all three fluid parameters on the erosion-enhanced corrosion of the alloy.
Article
Materials Science, Ceramics
Rong Tu, Zhen Liu, Qingfang Xu, Song Zhang, Qizhong Li, Xian Zhang, Marina L. Kosinova, Takashi Goto
Summary: Silicon nitride films were fabricated using halide laser chemical vapor deposition (LCVD) for surface protection of electronic devices. The study investigated the effects of deposition parameters on the crystallinity, microstructure, deposition rate, Vickers microhardness, nano-hardness, and electrical resistivity. The highest deposition rate was achieved at a temperature of 1573 K and pressure of 10 kPa. The hardness of the films increased with temperature and the electrical resistivity decreased.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2023)
Article
Cell & Tissue Engineering
Ying-Yi Zhang, Weijie Yang, Yi Zhang, Zhanhong Hu, Yingyan Chen, Yerong Ma, Anran Yang, Zhan Shi, Hanjing Zhou, Peipei Ren, Libing Shi, Jiamin Jin, Yan Rong, Xiaomei Tong, Yin-Li Zhang, Songying Zhang
Summary: Follicle developmental capacity and oocyte quality decline with advanced maternal age. Extracellular vesicles from human umbilical cord mesenchymal stem cells (HucMSC-EVs) have potential therapeutic effects on age-related ovarian dysfunction. In vitro culture (IVC) of preantral follicles is a useful method for understanding follicle development and improving female fertility. This study demonstrated that HucMSC-EVs can improve the growth and quality of aged follicles and oocytes in vitro through gene transcription regulation.
STEM CELL REVIEWS AND REPORTS
(2023)
Article
Optics
Ya-Wei Liu, Shu-Xing Wang, Long-Quan Xu, Yi-Geng Peng, Song-Bin Zhang, Yong Wu, Jian-Guo Wang, Lin-Fan Zhu
Summary: The inelastic squared form factors of valence-shell excitations in D2 were studied using high-energy electron scattering and theoretical calculations. Discrepancies were found between the experimental results and theoretical calculations for the B1Eu+ state and vibronic states of C1 pi u and EF1 sigma g+. This can be attributed to electronic-vibrational coupling and the failure of the first Born approximation at an incident electron energy of 1500 eV. The inelastic squared form factors of D2 were in good agreement with H2 and HD, indicating no isotope effect for electronic matrix elements in the momentum space.
Article
Materials Science, Multidisciplinary
Ping Zhang, Xiujie Yue, Yeran Gao, Zhenyong Lin, Shunxiang Wang, Songting Zhang
Summary: This paper investigates the strengthening mechanism of highspeed cutting and solid particle-entrained waterjet peening (HSC-WJP) composite reinforcement on 7075-T6 aluminum alloy. The research results show that composite reinforcement can improve surface quality, reduce surface pits and roughness, and decrease the size of precipitation-free zone (PFZ) at grain boundaries.
Article
Materials Science, Multidisciplinary
Sangyoon Lee, Hwi Yoon, Sanghun Lee, Seung-min Chung, Hyungjun Kim
Summary: The wettability of metal oxides, particularly HfO2 thin films deposited via atomic layer deposition, and its correlation with surface free energy have been studied. It was found that surface oxygen species significantly affect the intrinsic hydrophilicity of HfO2 thin films, and the crystalline orientations also evolve with film thickness.
Article
Materials Science, Multidisciplinary
Changdong Yin, Yiwen Wu, Zhou Xu, Dongdong Ye, Jun Yao, Jianjun Chen, Qiang Liu, Xin Ge, Meiling Ding
Summary: This study proposed a new strategy to indirectly estimate the hydrogen diffusivity of metallic materials under tensile stress by combining the electrochemical hydrogen permeation test (EHPT), the hydrogen diffusion descriptive equation based on Fick's law, and hydrogen pre-charged tensile test. The results showed that the hydrogen permeation curve obtained was highly approximate to the theoretical trend. The hydrogen embrittlement (HE) susceptibility of the specimens increased with increasing stress.
Article
Materials Science, Multidisciplinary
Huan Luo, Wei-yi Wang, Xin Yu, Xian-jun Lei, Lang Liu, Guo-zheng Zha, Wen-long Jiang, Bin Yang, Bao-qiang Xu
Summary: Separating selenium and tellurium is a general challenge in material and non-ferrous metallurgical industries. This paper proposes a novel method that achieved efficient separation of selenium and tellurium using gas-liquid equilibrium phase diagram and valence regulation-vacuum gasification technique.
Article
Materials Science, Multidisciplinary
Fan Zhang, Rong Xin Wang, Aiqin Tian, Fangzhi Li, Jianping Liu, Hui Yang
Summary: Deposition of Pd/Pt/Au three-layer films on p-GaN under high and ultra-high vacuum conditions was studied to investigate the electrical contact properties. Linear I-V curves were observed in samples deposited under ultra-high vacuum conditions, while nonlinear I-V characteristics were obtained in samples deposited under high vacuum conditions. The study also found that the samples deposited under high vacuum conditions had higher amounts of oxygen and Pd oxide. The oxide layer had an additional influence on the electrical characteristics of the Pd/Pt/Au/p-GaN contact.
Article
Materials Science, Multidisciplinary
Hongli Liu, Chengzhe Liu, Ying Sui, Zhongxian Liu, Tiangang Zhang, Zhiqiang Zhang, Shuang Sun, Jianwei Jia
Summary: This study utilized polysiloxane and hafnium carbide to produce Si-N-C-O-Hf hybridized ceramic fibers, and obtained ceramic fibers with hemispherical particles on the surface through electrostatic spinning and pyrolysis. The ceramic fibers exhibited excellent thermal stability, oxidation resistance, and high temperature insulation.
Article
Materials Science, Multidisciplinary
M. Abaker, Nazar Elamin Ahmed, A. Saad, H. F. Khalil, E. M. M. Ibrahim, A. M. Adam
Summary: This paper systematically studied the internal structure and thermoelectric properties of In1-xGaxSb alloys prepared by melting synthesis at 1123 K. The results showed that doping with Ga in the In sites led to a significant increase in the Seebeck coefficient and power factor, while reducing the thermal conductivity. The maximum dimensionless figure of merit was observed at 403 K.
Article
Materials Science, Multidisciplinary
Fucheng Yu, Jinlong Ren, Jielin Zhang, Haiyang Chen, Xin Tian, Chenchen Feng, Cuixia Li, Jianbin Zhang, Xianxi Tang, Xiaogang Hou
Summary: An environmentally friendly ZnO@BiVO4 composite photocatalyst was prepared using in-situ self-assembly and solvothermal methods, demonstrating good photocatalytic performance. The mass ratio of BiVO4 and NCZ was found to influence the photocatalytic performance of the composite.
Article
Materials Science, Multidisciplinary
Yaoming Shao, Pingping Zheng, Tianhao Dong, Lianghuan Wei, Haifei Wu, Jianxiao Si
Summary: In this paper, Mg3Bi2 films were prepared on glass substrate using magnetron sputtering, and the phase composition and thermoelectric properties of the films were investigated with different atomic ratios. The films displayed a metastable cubic phase and high conductivity when the atomic ratio exceeded stoichiometry.
Article
Materials Science, Multidisciplinary
I. V. Uimanov, D. L. Shmelev, S. A. Barengolts
Summary: A two-dimensional axisymmetric model has been developed to study the prebreakdown processes in a cathode microprotrusion under an external electric field. The simulation results show that electrohydrodynamic instability leads to the formation of a nanometer-sized conical protrusion on the microprotrusion tip, significantly accelerating the heating process.
Article
Materials Science, Multidisciplinary
Weilun Zhang, Di Yang, Feng Gong, Yongjun Chen, Tian Chen, Zhiwen Xie, Sirui Yang
Summary: A novel Pt doping method was designed to improve the thermal stability of CrWN coating. The doping of Pt atoms effectively blocks the coherent growth of the grains and creates a significant mixing effect, resulting in a smooth surface with uniform element distribution.
Article
Materials Science, Multidisciplinary
Xiaoye Wang, Xiaoguang Yang, Wenna Du, Tao Yang
Summary: In this study, the effects of multiple growth parameters on self-catalyzed growth of InAs/GaSb axial heterostructured nanowires on Si substrate by MOCVD were investigated. It was found that the growth temperature and switching time have significant influences on the nanowire growth.
Article
Materials Science, Multidisciplinary
Weizhong Cui, Yan Zhao, Can Cui, Xing Liu, Beili Pang, Jianguang Feng, Hongzhou Dong, Liyan Yu, Lifeng Dong
Summary: This study introduces Co2+ cations into Cs2AgBiBr6 film to improve its quality, grain size, and conductivity, resulting in enhanced solar cell efficiency.
Article
Materials Science, Multidisciplinary
Jian Wang, Ke Yang, Xianming Cheng, Yalin Lu, Ganghui Wu, Yang Zhang, Yun Kan
Summary: The corrosion behavior and microstructural evolution of Sc microalloyed Al-3.2Cu-1.5Li alloys were investigated in detail. The microstructural results showed higher levels of dislocations density in the Sc microalloyed sample, which resulted in significantly refined grains and T1 precipitates. Microalloying with Sc changed the corrosion mode of the alloy and localized corrosion was found to occur preferentially at the subgrain within unrecrystallized grains with high grain stored energy.
Article
Materials Science, Multidisciplinary
Weifeng Liu, Na Liu, Kaiqiang Song, Meiqin Zeng, Zhongchen Lu
Summary: Monoclinic WO3 prepared through plasma milling exhibits higher photocatalytic activity due to its higher surface area, increased oxygen vacancies, and defects.
