Article
Materials Science, Multidisciplinary
Hongtao Wang, Fenghui An, Xiaobo Bai, Hailong Yao, Mengxian Zhang, Qinyu Chen, Gangchang Ji, Chidambaram Seshadri Ramachandran
Summary: Nanograin Fe(Al) solid solution alloy coating was successfully prepared through cold-spraying technology. The annealing temperature significantly influenced the phase constitution, microstructure, microhardness, and dry sliding wear behavior of the coatings. The laminated structure in the as-sprayed coating disappeared and a dense coating microstructure was obtained when annealed above 950°C. The microhardness of the FeAl coating decreased from 400 Hv(0.1) to 300 Hv(0.1) at 950°C and remained nearly constant up to 1100°C. The wear mechanism changed from delamination of the oxide layer to microploughing and little oxidation at high annealing temperatures, resulting in significantly lower wear rates.
Article
Materials Science, Multidisciplinary
Xiao Chen, Chengdi Li, Xiaobo Bai, Hao Liu, Shunjian Xu, Yao Hu
Summary: TiAl intermetallic compounds are a new type of high-performance lightweight structural material that is widely used in various fields. The addition of titanium carbide (TiC) as a reinforcing phase can enhance the mechanical properties, wear resistance, and heat-resistance stability of TiAl intermetallic compounds. The research revealed that the particle size of the mixture powders decreased with longer ball milling time, and Ti(Al) solid solution appeared as the milling time increased to 30 hours. The coatings sprayed at 550 degrees C exhibited the lowest average porosity and the same phase compositions as the mixture powders.
Article
Materials Science, Multidisciplinary
Gabriel Demeneghi, Skylar Elliott, Ellen Rabenberg, Ayman Girgis, William Tilson, Annette Gray, Gregory Jerman
Summary: After heat treatment of thin-walled Inconel 625 sheet metal, some of the original plastic strain was partially recovered, but the recovery amount was affected by the initial plastic strain imparted to the specimens. Additionally, grains elongated and KAM values increased with heat treatment. Under specific conditions, some specimens were able to recover 88% of their plastic strain capability after heat treatment.
Article
Chemistry, Physical
Naijiang Wang, Chengxin Liu, Yangang Wang, Hao Chen, Xingrong Chu, Jun Gao
Summary: This study aims to obtain the Al-Zn composite coating with the best anti-corrosion performance by optimizing the spraying temperature, spraying distance and powder-feeding motor speed. The experimental results showed that the coating had a hardness of 67 HV, a porosity of 0.57%, and a thickness of 0.588 mm when the spraying temperature, spraying distance and powder-feeding motor speed were 500 degrees C, 27 mm and 1.5 r/min, respectively. The EIS test results demonstrated that the coating had good corrosion resistance at this parameter.
Article
Materials Science, Multidisciplinary
Ahmad Ostovari Moghaddam, Nataliya Shaburova, Majid Naseri, Yulia Latfulina, Marina Samodurova, Valerii Krymsky, Ksenia Litvinyuk, Evgeny Trofimov
Summary: Ni-based composite coatings reinforced by high-entropy intermetallic compounds (HEICs) were prepared using detonation spraying, resulting in dense microstructures and good bonding. Both HEIC powders exhibited proper thermal stability, and Ni-7wt.% FeNiCrV-TiNb had higher microhardness.
Article
Materials Science, Multidisciplinary
Zichang Zhang, Renquan Wang, Ying Liu
Summary: The hardness of cold-sprayed coatings is higher than that of corresponding powders and bulk alloys, resulting in low toughness. In this study, preheat treatment of powder and post-heat treatment of the coatings were applied to improve the performance of cold-sprayed 7075 aluminum alloy coatings. The tensile strength of the coatings increased from 228 MPa to 309 MPa with elongation of 2.46% when subjected to increasing temperatures of post-heat treatment. Microstructure analysis showed that the improvement in mechanical properties was primarily due to an increase in the secondary phase. Preheating the 7075 aluminum alloy powder at 200°C and cold spraying resulted in coatings with improved mechanical properties, exhibiting a tensile strength of 302 MPa and an elongation of 3.87%. These findings provide valuable insights into the practical application of cold-spraying technology in the aviation field.
MATERIALS RESEARCH EXPRESS
(2023)
Article
Materials Science, Coatings & Films
Alexandr A. Shtertser, Dina V. Dudina, Vladimir Yu. Ulianitsky, Igor S. Batraev, Denis K. Rybin, Yaroslav L. Lukyanov, Alexey Yu. Larichkin, Arina V. Ukhina, Artem A. Zhdanov
Summary: Metal matrix composites with nanoscale carbon generated by detonation spraying show improved mechanical properties compared to pure metal coatings and bulk commercial metals. The cohesion of coatings varies for different metals, with carbon reducing cohesion in Ni-based coatings by about 30% and increasing it in Ti-based coatings by 30%. This work opens up new research and application possibilities in the field of coatings formed by detonation spraying.
JOURNAL OF THERMAL SPRAY TECHNOLOGY
(2021)
Article
Materials Science, Multidisciplinary
Hao Chen, Chengxin Liu, Xingrong Chu, Tao Zhang, Jianjun Zheng
Summary: In this study, Cu-based coatings with excellent corrosion resistance were prepared by cold spraying. The coatings showed a dense microstructure, and the presence of Al improved the corrosion resistance.
Article
Materials Science, Coatings & Films
Qiang Wang, Wenjuan Niu, Xu Li, Peng Han, Xuan Mao, Ju Yang, Ming-Xing Zhang
Summary: Cold spray (CS) has significant technical advantages in additive manufacturing of aluminum matrix composites. This study comprehensively studied the effect of Al2O3 content and heat treatment temperature on the microstructure and mechanical properties of the deposits, showing that as the content of Al2O3 increases, the deposits exhibit improved hardness, UTS, and elongation in the as-sprayed state. Additionally, the bonding between Al particles in the deposits is observed to transform from mechanical interlocking to metallurgical bonding with increased heat treatment temperature, leading to improved ductility.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Materials Science, Multidisciplinary
Yupeng Ren, Naeem ul Haq Tariq, Hanhui Liu, Xinyu Cui, Yanfang Shen, Jiqiang Wang, Tianying Xiong
Summary: By subjecting cold sprayed Al deposits to unidirectional impact forging in the temperature range of 250-300°C, the microstructure and mechanical properties of the deposits can be significantly modified and improved. Hot-forging reduces porosity and enhances inter-particle diffusion, dynamic recovery, and recrystallization mechanisms, resulting in enhanced ultimate tensile strength and elongation in the Al deposits.
MATERIALS TODAY COMMUNICATIONS
(2022)
Article
Materials Science, Coatings & Films
Anna Goral, Wojciech Zorawski, Lidia Litynska-Dobrzynska, Medard Makrenek, Marcin Goly, Anna Trelka, Maciej Szlezynger
Summary: This study investigated the effect of laser surface treatment on cold sprayed metal ceramic coatings, finding that the laser treatment can improve the microstructure and mechanical properties of the coatings, leading to an almost 50% increase in their mechanical performance.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Materials Science, Multidisciplinary
Joseph Ndiithi Ndumia, Min Kang, Jinran Lin, Jitao Liu, Hao Li
Summary: The effects of heat treatment on the microstructure, phase composition, tensile bonding strength, microhardness, and wear properties of FeCrAl and Al coatings were analyzed in this study. It was found that the formation of intermetallic compounds during heat treatment significantly affected the hardness and wear resistance of the coatings.
Article
Chemistry, Physical
Ahmad Ostovari Moghaddam, Amin Abdollahzadeh, Marina Samodurova, Nataliya Shaburova, Dmitry Mikhailov, Rahele Fereidonnejad, Vladimir Zhivulin, Evgeny Trofimov
Summary: (NiCoFeCuMn)Zn-3 and (NbTaVNiTiFe)Al-3 high entropy intermetallic compound (HEIC) powders were fabricated and their microstructure and thermal stability were studied. The (NiCoFeCuMn)Zn-3 powder exhibited a single gamma-brass D8(2)-type structure, while (NbTaVNiTiFe)Al-3 contained D0(22) HEIC phase along with Ni4Ti3 and FeNi intermetallic inclusions. A modified electronegativity parameter was proposed for designing single high-entropy phases. The application of these HEIC powders in detonation spraying (DS) showed sufficient thermal stability and sound bonding with low porosity lamellar microstructure. HEICs are considered promising materials for a wide range of applications.
Article
Materials Science, Multidisciplinary
Joseph Ndiithi Ndumia, Jiping Zhu, Bertrand Vigninou Gbenontin, Min Kang, Xin Liu, Samuel Mbugua Nyambura
Summary: Arc spraying was used to deposit FeCrAl/Al coatings on low carbon steel substrates, followed by heat treatment. The microstructure, porosity, adhesion strength, and corrosion resistance of the coatings were investigated. The results showed that the heat treatment temperature, porosity, and elemental diffusion significantly influenced the coating properties.
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2023)
Article
Chemistry, Applied
Xingyu Wang, Xiaolong Wang, Xiaowen Sun, Yong Yang, Chen Zhang, Yuduo Ma, Yuhang Cui, Yanchun Dong, Dianran Yan, You Wang
Summary: The evolution of microstructure and properties of Al2O3-Y2O3-TiO2 plasma sprayed coatings under high temperature and thermal shock resistance was studied, showing that the addition of TiO2 can improve the thermal shock resistance significantly. This study provides important insights into enhancing thermal shock resistance by using TiO2 additive.
JOURNAL OF RARE EARTHS
(2021)
Article
Materials Science, Coatings & Films
Li Zhang, Xian-Jin Liao, Shan-Lin Zhang, Xiao-Tao Luo, Chang-Jiu Li
Summary: It has been found that the particle size of Ni-Al composite powders plays a crucial role in controlling the exothermic reaction for the formation of Ni-Al intermetallics during plasma spraying. Larger powder particles make it difficult for the reaction to complete, while smaller powder particles allow the exothermic reaction to occur rapidly, contributing to the development of the self-bonding effect in the coatings. The higher droplet temperature resulting from the exothermic reaction contributes to the adhesive or cohesive strength of the coatings.
JOURNAL OF THERMAL SPRAY TECHNOLOGY
(2021)
Article
Materials Science, Coatings & Films
Fei-Fei Lu, Kai Ma, Cheng-xin Li, Chang-jiu Li
Summary: The study successfully produced a MAC composite coating with outstanding corrosion and wear resistance on LA43M substrates. The MAC composite coatings showed improved wear resistance and hydrophobic properties, as well as a significant reduction in corrosion current density and high impedance values, confirming their high degree of corrosion resistance for LA43M alloy.
JOURNAL OF THERMAL SPRAY TECHNOLOGY
(2021)
Article
Materials Science, Coatings & Films
Usman Ahmed, Lui Yi, Lu Fei Fei, Muhammad Yasir, Chang-Jiu Li, Cheng-Xin Li
Summary: This study aims to improve the electrochemical and tribological properties of Mg-LA43M alloy by producing pure Al, Al-Al2O3, and Al-Al2O3-CNTs coatings using cold gas spraying method. The reinforcement of hard particles, especially CNTs, led to better corrosion resistance of the coatings and improved sliding wear resistance.
JOURNAL OF THERMAL SPRAY TECHNOLOGY
(2021)
Article
Materials Science, Coatings & Films
Jiu-Tao Gao, Jia-Hong Li, Yue-Peng Wang, Chang-Jiu Li, Cheng-Xin Li
Summary: This study adopts a novel structure design of large-area planar metal-supported solid oxide fuel cell (MS-SOFC), which exhibits the characteristics of self-sealing and high thermal cycling resistance. Various techniques were used for preparation and characterization, showing good stability and performance of the cells.
JOURNAL OF THERMAL SPRAY TECHNOLOGY
(2021)
Article
Engineering, Environmental
Muhammad Bilal Hanif, Martin Motola, Sana Qayyum, Sajid Rauf, Azqa Khalid, Chang-Jiu Li, Cheng-Xin Li
Summary: Solid oxide fuel cells (SOFCs) hold promise for energy conversion technology, but face challenges such as component degradation and sulfur poisoning. This article discusses various electrode materials and improvements to enhance electrochemical performance, highlighting critical challenges for advancement.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Thermodynamics
Yue-Peng Wang, Cheng-Xin Li, Jiu-Tao Gao, Chang-Jiu Li
Summary: In this study, the oxidation kinetics of 430L porous support in PMS-SOFCs was investigated, showing a 1% mass gain after 500 hours of exposure at 650 degrees C due to the formation of a continuous Cr2O3 scale. Diffusion of elements across the interface of the anode and support was hindered by thin and continuous scales, with less than 1 µm thickness after 500 hours of oxidation. The decrease in maximum power density after 500 hours of oxidation was attributed to the formation of a continuous Cr2O3 scale and an increase in ohmic and polarization resistance.
INTERNATIONAL JOURNAL OF GREEN ENERGY
(2022)
Article
Engineering, Industrial
Ruihong Cheng, XiaoTao Luo, Guosheng Huang, Chang Jiu Li
Summary: By introducing large-sized WC17Co particles into TC4 powder during cold spray, a forging/hammering effect was achieved to densify the deposited TC4 coatings, leading to improved wear resistance and corrosion protection. The addition of WC17Co reduced porosity in composite coatings, with the 80 vol.% WC17Co-TC4 coating showing the best corrosion resistance and 10 times higher wear resistance compared to pure TC4 coating. Adjusting the WC17Co content can effectively enhance the protective properties of the coatings.
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY
(2021)
Article
Engineering, Industrial
Yi Liu, Cheng-xin Li, Xiao-Fang Huang, Hui-Yu Zhang, Chang-jiu Li
Summary: SULC technology has great potential in underwater in-situ manufacturing/remanufacturing, allowing for the preparation of iron-based planar coatings with solidification structure distribution. The size and stability of the local dry region above the deposition point is influenced by the powder-feeding gas flow rate, while the laser power and powder-feeding rate are key factors in compensating for energy dissipation. Due to the local temperature gradient in SULC, the coating exhibits distinct solidification structure distribution.
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY
(2021)
Article
Materials Science, Coatings & Films
Di Wang, Li Zhang, Shan-Lin Zhang, Xiao-Tao Luo, Chang-Jiu Li
Summary: The study investigated the influence of chamber pressure on the microstructure and ablation behavior of ZrB2 coatings deposited by low-pressure plasma spraying. Results showed that porosity decreased with reduced chamber pressure, affecting the ablation performance of the coating. The dense ZrB2 coating deposited at 100 Pa exhibited the lowest ablation rate.
JOURNAL OF THERMAL SPRAY TECHNOLOGY
(2022)
Review
Materials Science, Multidisciplinary
Muhammad Bilal Hanif, Sajid Rauf, Martin Motola, Zaheer Ud Din Babar, Chang-Jiu Li, Cheng-Xin Li
Summary: This review summarizes recent developments and prospects of perovskite electrolyte materials in solid oxide fuel cells, emphasizing various design strategies and challenges.
MATERIALS RESEARCH BULLETIN
(2022)
Review
Materials Science, Coatings & Films
Chang-Jiu Li, Xiao-Tao Luo, Shu-Wei Yao, Guang-Rong Li, Cheng-Xin Li, Guan-Jun Yang
Summary: Thermal spraying is a crucial coating technology for depositing advanced ceramic coatings in various industrial fields. The adhesion and cohesion of ceramic coatings are of primary importance. This paper examines the main factors influencing bonding formation during thermal spraying of ceramic coatings and proposes solutions. It is possible to achieve chemical bonding in ceramic coatings by controlling spray particle and substrate parameters. The effects of spray particle parameters on bonding formation and the control of metal substrate oxide scale are also discussed.
JOURNAL OF THERMAL SPRAY TECHNOLOGY
(2022)
Review
Materials Science, Ceramics
Zhi-Yuan Wei, Guo-Hui Meng, Lin Chen, Guang-Rong Li, Mei-Jun Liu, Wei-Xu Zhang, Li-Na Zhao, Qiang Zhang, Xiao-Dong Zhang, Chun-Lei Wan, Zhi-Xue Qu, Lin Chen, Jing Feng, Ling Liu, Hui Dong, Ze-Bin Bao, Xiao-Feng Zhao, Xiao-Feng Zhang, Lei Guo, Liang Wang, Bo Cheng, Wei-Wei Zhang, Peng-Yun Xu, Guan-Jun Yang, Hong-Neng Cai, Hong Cui, You Wang, Fu-Xing Ye, Zhuang Ma, Wei Pan, Min Liu, Ke-Song Zhou, Chang-Jiu Li
Summary: This paper reviews the latest progress of new ceramic materials, summarizes the spalling mechanism of the ceramic top coat, and discusses new structural design methods for high-performance TBCs. It provides comprehensive guidance for the development of next-generation advanced TBCs.
JOURNAL OF ADVANCED CERAMICS
(2022)
Article
Materials Science, Multidisciplinary
Di Wang, Li Zhang, Xiao-Tao Luo, Chang-Jiu Li
Summary: Dense ZrB2-MoSi2 coatings were deposited on SiC-coated C/C composites for significantly improved ablation resistance, with the added MoSi2 producing a solid oxygen-blocking MoB layer and liquid self-sealing SiO2.
Article
Materials Science, Coatings & Films
Li-Yan Lou, Kang-Cheng Liu, Yun-Jie Jia, Gang Ji, Wei Wang, Chang-Jiu Li, Cheng-Xin Li
Summary: In this study, lightweight refractory high-entropy alloy coatings with different dilutions were deposited on TC4 substrate using high-speed laser cladding technology. By controlling specific processing parameters, coatings with a dilution lower than 3% were successfully obtained, and nearly defect-free coatings were manufactured within a dilution range of 2.4%-33.6%.
SURFACE & COATINGS TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Huiyu Zhang, Georg Mauer, Senhui Liu, Meng Liu, Yunjie Jia, Changjiu Li, Chengxin Li, Robert Vassen
Summary: In this study, the characteristics of plasma generated by the cascaded SinplexPro (TM) plasma spray gun were analyzed using numerical simulation. It was found that under certain conditions, the internal flow can be considered as quasi-laminar with low turbulence, while the turbulent plasma jet generated by the cascaded SinplexPro (TM) plasma spray gun is less affected and remains stable.
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.
