Article
Engineering, Multidisciplinary
Alexander Janda, Benjamin James Ralph, Yael Demarty, Marcel Sorger, Stefan Ebenbauer, Aude Prestl, Ingo Siller, Martin Stockinger, Helmut Clemens
Summary: Superior ballistic performance and lightweight character make Ti alloys suitable for armor applications. Quasi-static and dynamic compression tests as well as ballistic tests were conducted on a Ti-6Al-4V alloy to study its material behavior. The results were used for finite element simulation and compared to experimental data.
DEFENCE TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
Li Liu, Bo Zhang, Jian-tang Jiang, Wen-zhu Shao, Liang Zhen
Summary: The formation and evolution of twin-induced adiabatic shear bands (ASBs) in a Mg-Al-Mn alloy under ballistic impact were studied. Localized shear deformation occurred at the twin boundaries, resulting in the formation of ASBs. The ASBs thicken with increasing plastic deformation, mainly composed of subgrains, ultra-fine recrystallized grains, and Mg17Al12 precipitates. The appearance of the twin-induced ASBs is mainly attributed to the twin-twin intersections caused by high strain rate deformation.
MATERIALS CHARACTERIZATION
(2023)
Article
Nanoscience & Nanotechnology
Selim Kim, Min Cheol Jo, Tae Won Park, Jinhee Ham, Seok Su Sohn, Sunghak Lee
Summary: In this study, SHPB tests were conducted on 2139 and 7056 Al alloys to investigate their dynamic compressive properties and ASB formation behavior. The results showed that 7056 alloy had a higher susceptibility to ASB formation, lower critical strain for initiating ASBs, and lower resistance to ASB formation compared to 2139 alloy. This was consistent with the better ballistic performance of 2139 alloy observed in V-50 ballistic impact tests.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Nanoscience & Nanotechnology
Y. Ikeda, J. Mancias, B. Gan, R. Maass
Summary: The study demonstrates that lamellar eutectics in intermetallics exhibit plastic shear when the lamella spacing is small enough. Room-temperature shear deformation is achieved in a two-phase CuAl2-CuAl intermetallic nano-composite, revealing the presence of a phase with 3-fold symmetry after deformation.
SCRIPTA MATERIALIA
(2021)
Article
Engineering, Aerospace
Nathan J. Edwards, Stephen J. Cimpoeru, Norman Herzig, Dong Ruan
Summary: Flat-ended projectiles were used to impact aluminum plates of different thicknesses, and the formation of adiabatic shear bands was examined. Numerical simulation can be used to predict and understand the adiabatic shear failure mechanism.
JOURNAL OF AEROSPACE ENGINEERING
(2022)
Article
Engineering, Mechanical
Y. Vayig, Z. Rosenberg
Summary: We investigate the perforation of high strength Weldox steel plates by blunt projectiles. The experimental data for the ballistic limit velocities of these plates are found to be inconsistent with numerical simulation results. By employing a suitable failure model that considers the failure strains at pure shear states, we successfully eliminate this inconsistency. We also point out the inherent difficulties in simulating shear bands due to uncertainties in estimating the temperatures within these narrow bands.
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
(2023)
Article
Multidisciplinary Sciences
Jiri Orava, Shanoob Balachandran, Xiaoliang Han, Olga Shuleshova, Ebrahim Nurouzi, Ivan Soldatov, Steffen Oswald, Olof Gutowski, Oleh Ivashko, Ann-Christin Dippel, Martin Zimmermann, Yurii P. Ivanov, A. Lindsay Greer, Dierk Raabe, Michael Herbig, Ivan Kaban
Summary: The study used a combination of high-energy X-ray diffraction, containerless solidification during electromagnetic levitation, and transmission electron microscopy to investigate the phase evolution in a prototype Cu-Zr-Al glass during flash-annealing. Most of the phases formed during flash-annealing were found to be transient states, with only the B2 CuZr phase exhibiting equilibrium composition. Al-rich precipitates with a diameter of less than 10nm were also observed.
NATURE COMMUNICATIONS
(2021)
Article
Materials Science, Multidisciplinary
Rui Luo, Yun Cao, Huakang Bian, Leli Chen, Ching-Tun Peng, Fuyang Cao, Lingxiao Ouyang, Yu Qiu, Yanjin Xu, Aikihiko Chiba, Xiaonong Cheng
Summary: In this study, the hot workability of a spray formed 7055 aluminum alloy was investigated using advanced Gleeble thermo-mechanical simulation technology and EBSD technology. It was found that with increasing deformation parameters, the grains become finer and the distribution of crystal orientation becomes more homogeneous. Additionally, both Continuous Dynamic Recrystallization (CDRX) and Discontinuous Dynamic Recrystallization (DDRX) mechanisms coexist during hot deformation.
MATERIALS CHARACTERIZATION
(2021)
Article
Nanoscience & Nanotechnology
Xinjie Zhu, Qunbo Fan, Duoduo Wang, Haichao Gong, Yu Gao, Feng Qian, Shenbao Jin, Gang Sha
Summary: This paper investigates the composition distribution characteristics in adiabatic shear bands (ASBs) of an alpha/beta dual phase Ti-5.5Mo-7.2Al-4.5Zr-2.6Sn-2.1Cr alloy and its influence on dynamic recrystallization (DRX) using atomic probe tomography. The results demonstrate the formation of fuzzy grain boundaries in the ASB central region, with enriched beta stabilizing elements contributing to the formation of finer DRX grains. These unique characteristics, defined as composition redistribution, result from localized plastic deformation and adiabatic temperature rise.
SCRIPTA MATERIALIA
(2022)
Article
Nanoscience & Nanotechnology
Shiyuan Zhou, Chao Deng, Shifeng Liu, Yahui Liu, Jialin Zhu, Xiaoli Yuan
Summary: The study reveals that under dynamic shear loading, a straight ASB is formed in pure magnesium specimens, consisting of transition and central regions with equiaxed grains containing large angle grain boundaries. Grain and strain increase from ASB central to matrix regions, resulting in strain concentration in the matrix region. The mechanically-driven subgrain rotation model explains the texture in ASB, showing dynamic recrystallized grains slip and rotate under normal stress, leading to a mixed fracture mode of brittle and ductile fracture along the ASB.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Nanoscience & Nanotechnology
Xinjie Zhu, Qunbo Fan, Duoduo Wang, Haichao Gong, Yu Gao, Jingjiu Yuan, Kai Chen, Feng Qian
Summary: The study on the microstructure evolution near adiabatic shear bands (ASBs) in titanium alloys has made significant progress, but the underlying mechanism is still not clear. This study conducted dynamic compression tests on a specific titanium alloy and carefully investigated its microstructures using advanced microscopy techniques. The results revealed a new dynamic recrystallization mechanism in the central region of ASBs, shedding light on the understanding of ASB evolution. Additionally, the study found that the presence of twins in certain regions was influenced by severe deformation and the instability of certain phases.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Electrochemistry
Hiroshi Kakinuma, Izumi Muto, Yoshiyuki Oya, Takahiro Momii, Yu Sugawara, Nobuyoshi Hara
Summary: The study clarified the relationship between the change in open-circuit potential (OCP) and the morphology of metastable pitting at Al-Fe-Si particles of AA1050 aluminum in 0.1 M NaCl. It was found that the pit grew in depth as the OCP decreased suddenly, started to grow on the Al surface, and then became repassivated with an increase in OCP. The transition from metastable to stable pitting was determined to occur gradually, with potential oscillations associated with the growth of many metastable pits.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2021)
Article
Engineering, Mechanical
A. R. Vishnu, M. Marvi-Mashhadi, J. C. Nieto-Fuentes, J. A. Rodriguez-Martinez
Summary: This paper presents new insights into the role of porous microstructure on dynamic shear localization. Finite element calculations of electromagnetically collapsing thick-walled cylinders were performed, and the numerical simulations showed that voids promote dynamic shear localization and affect the nucleation and development of shear bands.
INTERNATIONAL JOURNAL OF PLASTICITY
(2022)
Article
Engineering, Mechanical
Stefano Dolci, Kelly S. Carney, Paul Du Bois, Duane Revilock, Charles Ruggeri, Cing-Dao Kan
Summary: This paper investigates the failure mechanism of thick metal plates impacted by blunt projectiles, known as an Adiabatic Shear Band (ASB). By enhancing the Johnson-Cook material model, it is possible to simulate the development of ASB in meshes that are practical for engineering applications. Full scale impact tests validate the accuracy of the enhanced material model.
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
(2023)
Article
Nanoscience & Nanotechnology
Wei Chen, Guoxiang Yu, Keer Li, Yue Wang, Jinyu Zhang, Jun Sun
Summary: The plastic behavior of metastable fl-titanium alloys was investigated at different temperatures. The alloy exhibited a more homogeneous plasticity, high serrated frequency, and overall strain hardening at elevated temperature. This dynamic reconstruction of the fl-striations resulted in stress rise and has important implications for applications.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Materials Science, Multidisciplinary
Kwadwo Asare Owusu, Zhaoyang Wang, Ali Saad, Felix Ofori Boakye, Muhammad Asim Mushtaq, Muhammad Tahir, Ghulam Yasin, Dongqing Liu, Zhengchun Peng, Xingke Cai
Summary: A simple scalable method for fabricating electrodes with high capacity and wide voltage range was developed. Noncrystalline NiCo-LDH nanosheets were synthesized on activated carbon cloth substrate, demonstrating high areal capacities and excellent cycling performance. Furthermore, by constructing an asymmetric supercapacitor, high energy densities were achieved.
ENERGY & ENVIRONMENTAL MATERIALS
(2023)
Article
Engineering, Civil
Muhammad Abubaker Khan, Yangwei Wang, Mohamed A. Afifi, Mohammad Tabish, Muhammad Hamza, Ghulam Yasin, Tahir Ahmad, Wei-Bing Liao
Summary: This study focuses on the newly developed (Al, Zn)(3)Zr precipitates through double aging treatment in an Al-Zn-MgCu alloy and their response to dynamic compression. The results show that the strength of the alloy is increased with an increasing strain rate, and the microstructures change after the dynamic compression.
ARCHIVES OF CIVIL AND MECHANICAL ENGINEERING
(2023)
Article
Engineering, Environmental
Abba Bala Musa, Mohammad Tabish, Anuj Kumar, Manickam Selvaraj, Muhammad Abubaker Khan, Badria M. Al-Shehri, Muhammad Arif, Muhammad Asim Mushtaq, Shumaila Ibraheem, Yassine Slimani, Saira Ajmal, Tuan Anh Nguyen, Ghulam Yasin
Summary: Developing cost-effective and high-performance non-precious electrocatalysts for ORR is crucial for clean energy generation. Single-atom catalysts have shown significantly improved performance, but protecting their structure from deterioration is still a challenge. In this study, a simple strategy for protecting the structure of single-atom catalysts by implanting/decorating FeN4 on Fe-ZIF-derived carbon nanotubes is reported. The developed catalyst exhibits outstanding ORR activity in both acidic and alkaline media compared to commercial Pt/C.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Materials Science, Multidisciplinary
Wei-Bing Liao, Chen-Hao Xu, Tian-Li Wang, Chuang-Shi Feng, Muhammad Abubaker Khan, Ghulam Yasin
Summary: Nano-structured refractory high-entropy alloy films were prepared and their oxidation behavior and effects on microstructure and mechanical properties were investigated. The films exhibited stable structure and mechanical properties under oxidation conditions up to 400 degrees Celsius.
Article
Materials Science, Multidisciplinary
Muhammad Abubaker Khan, Chenhao Xu, Muhammad Hamza, Mohamed A. Afifi, Naeem Akhtar Qaisrani, Huibin Sun, Bin Wang, Waheed Qamar Khan, Ghulam Yasin, Wei -Bing Liao
Summary: An investigation was conducted to study the influence of peak-ageing and double ageing treatments on the precipitation along different grain boundary orientations of an extruded Al-Zn-Mg-Cu alloy. The results showed that the type of grain boundary precipitates varied depending on the grain boundary orientation and treatment. The study provides new insights into engineering the grain boundary precipitates to achieve desired precipitate types and corresponding mechanical properties.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Review
Chemistry, Inorganic & Nuclear
Saira Ajmal, Anuj Kumar, Manickam Selvaraj, Mohammed Mujahid Alam, Yang Yang, Dipak K. Das, Ram K. Gupta, Ghulam Yasin
Summary: Rapid industrialization and urban development lead to the release of toxic pollutants, including nitrate (NO3-) and CO2, causing environmental issues and global illness. Previous purification methods were ineffective due to high cost, low-performance, and secondary pollution. Converting NO3- and CO2 photochemically and electrochemically into energy-rich molecules is an innovative strategy for environmental remediation and meeting energy needs. MXenes, a class of 2D materials, have gained attention for their remarkable properties in catalytic conversion. This article focuses on the conversion of NO3- and CO2 to valuable products, highlighting MXene-based catalysts and future prospects.
COORDINATION CHEMISTRY REVIEWS
(2023)
Article
Chemistry, Applied
Zhousheng Mo, Saira Ajmal, Mohammad Tabish, Anuj Kumar, Ghulam Yasin, Wei Zhao
Summary: The increasing concentration of CO2 in the atmosphere due to human activity poses serious threats to humans and the environment. Electrochemical CO2 reduction to value-added chemicals is a highly effective approach for lowering environmental CO2 concentrations, but it requires robust electrocatalysts. Recently, MOF-based materials have been extensively studied as an emerging class of electrocatalysts with high porosity, large surface area, stability, and chemical tunability. This article reviews the fundamentals of CO2 reduction and current developments in MOF-based electrocatalysts, aiming to promote the development of more effective materials for CO2 abatement and raise awareness of the potential of MOFs in addressing environmental sustainability challenges.
FUEL PROCESSING TECHNOLOGY
(2023)
Article
Chemistry, Inorganic & Nuclear
Yasir Zaman, Muhammad Zahid Ishaque, Saira Ajmal, Muhammad Shahzad, Abu Bakar Siddique, Muhammad Usman Hameed, Humaira Kanwal, R. Jothi Ramalingam, Manickam Selvaraj, Ghulam Yasin
Summary: In this study, silver nanoparticles (AgNPs) were used to rapidly decompose organic dyes from the effluents of paints and textile industries. AgNPs with different sizes were prepared using the polyol reduction method by controlling the molar ratio of substrate/reducing agent and pH of the reaction media. The AgNPs were characterized using various techniques, and their catalytic and antibacterial activities were evaluated. It was found that AgNPs with an average size of 70 nm showed improved photocatalytic potential, degrading 94% of Methylene blue (MB) dye in 80 minutes. The smaller-sized AgNPs exhibited higher antibacterial activity against gram-negative strains of bacteria.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Shengling Zhang, Fei Zhao, Ghulam Yasin, YunYun Dong, Jinsheng Zhao, Yue Guo, Panagiotis Tsiakaras, Jie Zhao
Summary: Two novel conjugated porous polymers (CPPs) with pyrene and 1,3,5-triazine building blocks were synthesized. Structural changes in the peripheral groups of the triazine units greatly affected the photocatalytic activity of the polymers. The catalyst containing thiophene-triazine (ThPy-CPP) showed a much higher photocatalytic hydrogen evolution rate than the one containing phenyl-triazine (PhPy-CPP), indicating a promising direction for designing efficient CPP-based photocatalysts.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Physical
Sumaira Nazar Hussain, Hajera Gul, Nadeem Raza, Fethi Albouchi, Munir Ahmad, Zeinhom M. El-Bahy, Maham Hussain, Waseem Raza, Ghulam Yasin
Summary: This article develops a facile synthesis process, based on self-templating CoSe2 nanorods on carbon cloth (CoSe2/CC), which serves as an efficient electrocatalyst for the hydrogen evolution reaction (HER) in both alkaline and acidic electrolytes. Compared to bare CoSe2, the CoSe2/CC catalyst exhibits significantly improved HER performance and kinetics. This research could lead to the rational design and fabrication of other transition-metal selenide nanostructured materials for efficient HER electrocatalysis.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Multidisciplinary
Muhammad Abubaker Khan, Muhammad Hamza, Jamieson Brechtl, Zahid Nazir, Naeem Akhtar Qaisrani, Ghulam Yasin, Tahir Ahmad, Wei-Bing Liao, Peter K. Liaw, Mohamed A. Afifi
Summary: A novel refractory high entropy alloy (RHEA) with a low-density and good specific strength and plasticity has been designed and studied. The alloy demonstrates excellent compressive plasticity and specific yield strength, showing potential for applications in high-temperature environments.
MATERIALS CHARACTERIZATION
(2023)
Article
Chemistry, Physical
Ajmal Khan, Zhidong Chang, Wenjun Li, Xiaohui Ma, Mei Dong, Liang Geng, Ghulam Yasin, Shuaib Khan, Hira Anwar
Summary: Due to its functional structure and tunable shape, 2D zeolitic imidazole framework (ZIFs) have gained significant interest in various fields. In this study, thin ZIF-8 sheets were prepared using a mixed solvent and then delaminated into single layers through physical sonication. These hexagonal sheets exhibited high stability and controlled morphology, and showed excellent performance in dye degradation compared to 3D ZIF-8 crystals.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2024)
Article
Energy & Fuels
Anuj Kumar, Ram K. Gupta, Mohd Ubaidullah, Abdullah M. Al-Enizi, Bidhan Pandit, Senthilkumar Nangan, V. Jagadeesha Angadi, Ghulam Yasin
Summary: This article reports a hollow mesoporous Fe-graphitic carbon nitride supported on carbon nanotubes (Fe-C3N3@CNTs) as a superior electrocatalyst for the oxygen reduction reaction (ORR) in fuel cells. The Fe-C3N3@CNTs composite showed dominant 4e-ORR pathway, exceptional methanol tolerance, and durability. Theoretical analysis revealed that Fe-C3N3 catalytic moieties facilitated the adsorption and desorption of oxygen, enabling efficient ORR.
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.
