☆ 4.7 Article

Prior β grain evolution and phase transformation of selective laser melted Ti6Al4V alloy during heat treatment

JOURNAL OF ALLOYS AND COMPOUNDS (2022)

获取全文
添加到收藏夹

期刊

JOURNAL OF ALLOYS AND COMPOUNDS
卷 914, 期 -, 页码 -

出版社

ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2022.165235

关键词

Selective laser melting; Ti6Al4V alloy; Heat treatment; Microstructure; Phase transformation

类别

Chemistry, Physical Materials Science, Multidisciplinary Metallurgy & Metallurgical Engineering

资金

  1. Youth Innovation Promotion Association CAS [2021192]
  2. National Natural Science Foundation of China (NSFC) [51871223, 52130002]
  3. IMR Innovation Foundation [2021-PY05]
  4. KC Wong Education Foundation [GJTD-2020-09]

向作者/读者索取更多资源

Protocol

社区支持

Reagent

社区支持

The prior beta grain evolution and phase transformation of selective laser melted (SLM) Ti6Al4V alloy after subtransus and supertransus solution heat treatments were investigated. A method based on the special angle grain boundaries was proposed for describing the prior beta mesostructure. Subtransus treatments retained the prior beta grains and altered the martensitic microstructure into a mixture of alpha and alpha'/beta phases. Supertransus treatments resulted in the growth of prior beta grains and transformation of martensitic alpha' phases into beta phases, followed by a transformation back into alpha' martensites during quenching, leading to a new martensitic microstructure. The microhardness was mainly influenced by the amount of alpha' martensite.
Prior beta grain evolution and phase transformation of selective laser melted (SLM) Ti6Al4V alloy after subtransus and supertransus solution heat treatments are investigated. A method based on the special angle grain boundaries (in the range of 15-55 degrees and 70-85 degrees) is proposed for a clear and straightforward description of the prior beta mesostructure. Post solution treatments below beta transus retain the prior beta grains and alter the fully martensitic microstructure into a mixture of alpha and alpha'/beta phases. A non-traditional bimodal structure consisting of alpha(P) and alpha(S)' phases is produced by subtransus treatments at a relatively high temperature. While treatments above beta transus lead to the growth of prior beta grains and transform the martensitic alpha' phases into beta phases first, and then back into alpha' martensites again during quenching, leading to a new martensitic microstructure. The microhardness is determined by the alpha lath thickness and the amount of alpha' martensite, and the latter is more predominant. (c) 2022 Elsevier B.V. All rights reserved.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.7
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

Article Materials Science, Multidisciplinary

Additive Manufacturing of CoCrFeMnNi High-Entropy Alloy/AISI 316L Stainless Steel Bimetallic Structures

Rathinavelu Sokkalingam, Zhao Chao, Katakam Sivaprasad, Veerappan Muthupandi, Jayamani Jayaraj, Parthiban Ramasamy, Juergen Eckert, Konda Gokuldoss Prashanth

Summary: CoCrFeMnNi high-entropy alloy/AISI 316L stainless steel bimetal was fabricated using SLM, showing enhanced hardness and tensile strength due to the composition and structure advantages. However, the presence of defects and higher susceptibility to pitting corrosion in CoCrFeMnNi-HEA make it more prone to corrosion attack in corrosive environments.

ADVANCED ENGINEERING MATERIALS (2023)

添加到收藏夹
Article Materials Science, Multidisciplinary

Influence of Hatch Strategy on Crystallographic Texture Evolution, Mechanical Anisotropy of Laser Beam Powder Bed Fused S316L Steel

Sabine C. Bodner, Kostyantin Hlushko, Kevin Kutlesa, Juraj Todt, Oliver Renk, Michael Meindlhumer, Florian Resch, Marc-Andre Nielsen, Jozef Keckes, Jurgen Eckert

Summary: The correlations between process conditions, microstructure, and mechanical properties of additively manufactured components are explored in this study. The results show that the applied hatch strategy has a significant impact on the microstructure and mechanical properties of the samples, especially the anisotropy observed in the plane perpendicular to the build direction.

ADVANCED ENGINEERING MATERIALS (2023)

添加到收藏夹
Article Materials Science, Multidisciplinary

High-Entropy Alloy-Induced Metallic Glass Transformation: Challenges Posed by in situ Alloying via Additive Manufacturing

Sepide Hadibeik, Florian Spieckermann, Martin Nosko, Farzad Khodabakhshi, Mahmoud Heydarzadeh Sohi, Juergen Eckert

Summary: A novel approach for fabricating bulk metallic glass using additive manufacturing has been studied, however, there are challenges, such as unmelted powder and compositional deviation, that need further investigation to optimize the process parameters.

ADVANCED ENGINEERING MATERIALS (2023)

添加到收藏夹
Article Materials Science, Multidisciplinary

Surface Topography and Biocompatibility of cp-Ti Grade2 Fabricated by Laser-Based Powder Bed Fusion: Influence of Printing Orientation and Surface Treatments

Jelena Petrusa, Benjamin Meier, Gerda Gruenbacher, Wolfgang Waldhauser, Juergen Eckert

Summary: The effects of laser energy density on the relative density and microstructure of cp-TiGd2 fabricated by LB-PBF were studied, and the influence of printing orientation and different surface treatments on surface topography and biocompatibility were investigated. The aim is to develop additive manufacturing process parameters that can achieve full density and satisfactory biocompatibility for cp-TiGd2 as a low-cost alternative to biomedical materials. An optimized process with high density, improved surface roughness, and noncytotoxicity was achieved using a wide range of process parameters.

ADVANCED ENGINEERING MATERIALS (2023)

添加到收藏夹
Article Chemistry, Physical

Reactive interdiffusion of an Al film and a CoCrFeNi high-entropy alloy at elevated temperatures

Zequn Zhang, Simon Fellner, Sergey Ketov, Megan J. Cordill, Huaping Sheng, Christian Mitterer, Kaikai Song, Christoph Gammer, Juergen Eckert

Summary: The phase evolution of alloys and atomic diffusion are closely related. However, the influence of reactive diffusion on phase formation in high-entropy alloys (HEAs) is still not clear. This study investigates the phase evolution of a multicomponent CoCrFeNi/Al diffusion couple and reveals the combined effects of enthalpy and entropy on phase formation in HEAs at elevated temperatures. Surface modification of HEAs can be achieved through film deposition and annealing processes.

INTERMETALLICS (2023)

添加到收藏夹
Review Electrochemistry

Pd-based Metallic Glasses as Promising Materials for Hydrogen Energy Applications

Baran Sarac, A. Sezai Sarac, Juergen Eckert

Summary: This review provides an introduction to the use of advanced amorphous metal catalysts for hydrogen storage and production via electrochemistry. Pd-based metallic glasses have gained significant attention due to their unique atomic structure and properties for energy applications. The review covers the fabrication techniques, hydrogen sorption, hydrogen evolution, kinetics, and future prospects of Pd-based metallic glasses. Overall, it offers a comprehensive overview for large-scale hydrogen energy storage and production systems.

JOURNAL OF THE ELECTROCHEMICAL SOCIETY (2023)

添加到收藏夹
Article Materials Science, Multidisciplinary

Enhanced mechanical performance of gradient-structured CoCrFeMnNi high-entropy alloys induced by industrial shot-blasting

Ming-Zhi Zhang, Kun Zhang, Kai-Kai Song, Xiao-Yu Zou, Wei-Dong Song, Ke-Feng Li, Li-Na Hu, Ze-Qun Zhang, Juergen Eckert

Summary: In this study, CoCrFeMnNi high-entropy alloys with a surface gradient nanostructure were produced using industrial shot blasting, which significantly improved their mechanical properties. The severely plastically deformed surface layer had a multi-scale hierarchical structure and increased in depth with shot-blasting time. The microhardness and tensile strength of the alloy were significantly higher after shot-blasting. The improved strain hardening and prevention of early necking in the gradient-nanostructured surface layer contributed to its high toughness.

RARE METALS (2023)

添加到收藏夹
Article Chemistry, Physical

Can Severe Plastic Deformation Tune Nanocrystallization in Fe-Based Metallic Glasses?

Monika Antoni, Florian Spieckermann, Niklas Plutta, Christoph Gammer, Marlene Kapp, Parthiban Ramasamy, Christian Polak, Reinhard Pippan, Michael J. J. Zehetbauer, Juergen Eckert

Summary: The effects of severe plastic deformation (SPD) by means of high-pressure torsion (HPT) on Fe73.9Cu1Nb3Si15.5B6.6 and Fe81.2Co4Si0.5B9.5P4Cu0.8 iron-based metallic glasses were compared. HPT processing extended the consolidation and deformation ranges for Fe73.9Cu1Nb3Si15.5B6.6, and achieved consolidation and deformation with minimum cracks for Fe81.2Co4Si0.5B9.5P4Cu0.8 for the first time. Various analyses revealed that Fe81.2Co4Si0.5B9.5P4Cu0.8 exhibited HPT-induced crystallization phenomena, while Fe73.9Cu1Nb3Si15.5B6.6 did not crystallize even at high HPT-deformation degrees.

MATERIALS (2023)

添加到收藏夹
Editorial Material Chemistry, Multidisciplinary

Special Issue Novel Structural and Functional Material Properties Enabled by Nanocomposite Design

Juergen Eckert, Daniel Kiener

NANOMATERIALS (2023)

添加到收藏夹
Article Chemistry, Physical

Iron oxide - poly(m-anthranilic acid)-poly(e-caprolactone) electrospun composite nanofibers: fabrication and properties

Keziban Huner, Baran Sarac, Eray Yuece, Amir Rezvan, Matej Micusik, Maria Omastova, Juergen Eckert, A. Sezai Sarac

Summary: The incorporation of iron and carboxylic acid-functionalized polyaniline into polymeric polycaprolactone structures enhances the electron-donating ability and conductivity of the compound, making it suitable for electrochemical immunosensors.

MOLECULAR SYSTEMS DESIGN & ENGINEERING (2023)

添加到收藏夹
Article Engineering, Mechanical

Molecular dynamics study of shock-induced deformation phenomena and spallation failure in Ni-based single crystal superalloys

Bin Chen, Yunli Li, Daniel Sopu, Juergen Eckert, Wenping Wu

Summary: The shock-induced dynamic mechanical behavior and spallation failure of Ni-based single crystal superalloys are studied using non-equilibrium molecular dynamic simulations. Two modes of classical spallation and micro-spallation are observed during the spallation failure. The deformation mechanism is dominated by slip and drag of dislocations at low shock velocities, while complex phase transitions from FCC to BCC or disordered structures occur at higher velocities, leading to a decrease in spallation strength. The presence of voids significantly lowers the spallation strength, and the reduction in strength is proportional to the radius of the voids.

INTERNATIONAL JOURNAL OF PLASTICITY (2023)

添加到收藏夹
Article Materials Science, Multidisciplinary

Accelerating matrix/boundary precipitations to explore high-strength and high-ductile Co34Cr32Ni27Al3.5Ti3.5 multicomponent alloys through hot extrusion and annealing

Xiaoming Liu, Zongde Kou, Ruitao Qu, Weidong Song, Yijia Gu, Changshan Zhou, Qingwei Gao, Jiyao Zhang, Chongde Cao, Kaikai Song, Vladislav Zadorozhnyy, Zequn Zhang, Juergen Eckert

Summary: This study utilizes high-temperature extrusion and annealing to optimize the microstructures and mechanical properties of the Co34Cr32Ni27Al3.5Ti3.5 multicomponent alloy. Hot extrusion reduces grain sizes and promotes the precipitation of nanoparticles inside the FCC matrix and grain boundaries. Subsequent annealing regulates the microstructures and enhances the mechanical properties.

JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY (2023)

添加到收藏夹
Article Materials Science, Multidisciplinary

Mechanical behavior of CuZrAl metallic glass scaffolds fabricated by selective laser melting

Ming-Wei Wu, Kai Ni, Yang Lei, Xin-Xing Xiong, Yi-Ting Chuang, Quiao-En Lin, Pei Wang, Parthiban Ramasamy, Juergen Eckert

Summary: Selective laser melting (SLM) was utilized to produce CuZrAl metallic glass (MG) scaffolds with combined lattice structures of body-centered cubic and face-centered cubic (F2BCC), and the effects of lattice structures on mechanical behavior were investigated. The results revealed that curved struts remarkably enhanced compressive ductility by 122% and energy absorption by 106%. The presence of curved struts effectively prevented catastrophic shear fracture and delayed fracture occurrence due to the release of strain concentrations. This study demonstrates the potential of improving the ductility and toughness of SLM MG components through appropriate lattice structure design.

MATERIALS LETTERS (2023)

添加到收藏夹
Article Engineering, Manufacturing

Synergistic Strengthening Mechanisms of Dual-Phase (TiN plus AlN) Reinforced Aluminum Matrix Composites Prepared by Laser Powder Bed Fusion

Ruiqi Wang, Lixia Xi, Lili Feng, Baran Sarac, Konda Gokuldoss Prashanth, Juergen Eckert, Dongdong Gu

Summary: Dual-phase reinforcing approach is an efficient strategy for fabricating advanced aluminum matrix composites. However, designing a dual-phase reinforcing system with synergistic strengthening effect for LPBF process is challenging.

3D PRINTING AND ADDITIVE MANUFACTURING (2023)

添加到收藏夹
Article Materials Science, Multidisciplinary

Solving the problem of solidification cracking during additive manufacturing of CrMnFeCoNi high-entropy alloys through addition of Cr3C2 particles to enhance microstructure and properties

Xintian Wang, Zhiyong Ji, Robert O. Ritchie, Ilya Okulov, Juergen Eckert, Chunlei Qiu

Summary: In this study, TiAl and Cr3C2 particles were added to a CrMnFeCoNi alloy to improve its processibility and mechanical properties. The addition of TiAl particles resulted in the formation of cracks, but the further addition of Cr3C2 particles helped suppress hot cracking. The presence of long-range ordered domains and precipitates contributed to the improved strength of the dual-particle containing alloy.

MATERIALS TODAY ADVANCES (2023)

添加到收藏夹
Article Chemistry, Physical

Magnetic/optical assessments of RFeO3 (R=La, Pr, Nd, and Sm) ceramics: An experimental and theoretical discernment

J. Zamora, T. Bautista, N. S. Portillo-Velez, A. Reyes-Montero, H. Pfeiffer, F. Sanchez-Ochoa, H. A. Lara-Garcia

Summary: Experimental and DFT studies were conducted on the structural, magnetic, and optical properties of RFeO3 perovskites. The perovskites exhibited an orthorhombic crystal structure and weak ferromagnetic behavior. They were confirmed to be semiconductors with a bandgap of approximately 2.1 eV.

JOURNAL OF ALLOYS AND COMPOUNDS (2024)

添加到收藏夹
Article Chemistry, Physical

The effect of Ti-based surface layer on AlSi thin film as a high-performance anode for the lithium-ion battery

Xianxiang Lv, Jing Jin, Weiguang Yang

Summary: By depositing TiN and TiO2 surface layers on AlSi films, the electrochemical performance of silicon-based anodes can be significantly improved, suppressing volume expansion and promoting the formation of a stable SEI layer.

JOURNAL OF ALLOYS AND COMPOUNDS (2024)

添加到收藏夹
Article Chemistry, Physical

Bifunctional phosphate-modulated Cu2O/CeO2 redox heterojunction: A promising approach for proficient CO2 reduction

Sharafat Ali, Haider Ali, Syedul Hasnain Bakhtiar, Sajjad Ali, Muhammad Zahid, Ahmed Ismail, Pir Muhammad Ismail, Amir Zada, Imran Khan, Huahai Shen, Rizwan Ullah, Habib Khan, Mohamed Bououdina, Xiaoqiang Wu, Fazal Raziq, Liang Qiao

Summary: The construction and optimization of redox-heterojunctions using a bifunctional phosphate as an electron-bridge demonstrated significant improvements in photo catalytic activity, including enhanced dispersion, reduced interfacial migration resistance, and increased abundance of active-sites.

JOURNAL OF ALLOYS AND COMPOUNDS (2024)

添加到收藏夹
Article Chemistry, Physical

Engineering heterogeneous synergistic interface and multifunctional cobalt-iron site enabling high-performance oxygen evolution reaction

Ren-Ni Luan, Na Xu, Chao-Ran Li, Zhi-Jie Zhang, Yu-Sheng Zhang, Jun Nan, Shu-Tao Wang, Yong-Ming Chai, Bin Dong

Summary: Extensive research has revealed that oxygen evolution reaction (OER) in alkaline conditions involves dynamic surface restructuring. The development and design of sulfide/oxide pre-catalysts can reasonably adjust the composition and structure after surface reconstruction, which is crucial for OER. This study utilized a simple two-step hydrothermal method to achieve in situ S leaching and doping, inducing the composition change and structure reconstruction of CoFe oxides. The transformed FeOOH and CoOOH exhibited excellent OER activity and could be easily mass-produced using low-cost iron based materials and simple methods.

JOURNAL OF ALLOYS AND COMPOUNDS (2024)

添加到收藏夹
Article Chemistry, Physical

Highly efficiency blue emissive from Bi3+ions in zero-dimensional organic bismuth halide for white LED applications

Jun'an Lai, Daofu Wu, Peng He, Kang An, Yijia Wang, Peng Feng, WeiWei Chen, Zixian Wang, Linfeng Guo, Xiaosheng Tang

Summary: Zero-dimensional organic-inorganic metal halides (OMHs) are gaining attention in the fabrication of light-emitting diodes due to their broad emission band and high photoluminescence quantum yield. This work synthesized a zero-dimensional organic tetraphenylphosphonium bismuth chloride (TBC) that showed efficient blue light emission, with the emission mechanism attributed to the transition of Bi3+ ions. White light-emitting diodes (WLEDs) were fabricated using TBC, along with green-emitting and red-emitting single crystals, achieving single-component white emissions. These findings demonstrate the different emission mechanism of ns2 ions-based OMHs and highlight the potential of bismuth-based OMHs in WLEDs applications.

JOURNAL OF ALLOYS AND COMPOUNDS (2024)

添加到收藏夹
Article Chemistry, Physical

Study on the wear resistance and mechanism of AlCrCuFe2NiTix high-entropy surfacing alloys

Xuewei Liang, Yunhai Su, Taisen Yang, Zhiyong Dai, Yingdi Wang, Xingping Yong

Summary: The revolutionary design concept of high-entropy alloys has brought new opportunities and challenges to the development of advanced metal materials. In this work, AlCrCuFe2NiTix high-entropy flux cored wires were prepared by combining the design idea of a high-entropy alloy with the characteristics of flux cored wire. AlCr-CuFe2NiTix high-entropy surfacing alloys were prepared using gas metal arc welding technology. The wear properties of the alloys were analyzed, and the phase composition, microstructure, strengthening mechanism, and wear mechanism were discussed. The results show that the alloys exhibit a dendritic microstructure with BCC/B2 + FCC phases. Increasing Ti content leads to the precipitation of Laves phase. The alloys show improved microhardness and wear resistance due to the precipitation of coherent B2 and Laves phases. However, excessive Ti addition results in the increase of Laves phase and reduced wear resistance of the alloys.

JOURNAL OF ALLOYS AND COMPOUNDS (2024)

添加到收藏夹
Article Chemistry, Physical

Facile synthesis of ternary g-C3N4/polyacrylic acid/CoFe2O4 nanocomposites for solar light irradiated photocatalytic and supercapacitor applications

M. Vadivel, M. Senthil Pandian, P. Ramasamy, Qiang Jing, Bo Liu

Summary: This work presents the enhanced photocatalytic and electrochemical performance of g-C3N4 assisted PAA on CoFe2O4 ternary nanocomposites. The incorporation of PAA and g-C3N4 improves the separation efficiency of photogenerated charge carriers, resulting in superior photocatalytic degradation and high specific capacitance values.

JOURNAL OF ALLOYS AND COMPOUNDS (2024)

添加到收藏夹
Article Chemistry, Physical

Investigation on bio-synthesized Ni- and Al-doped cobalt ferrite using lemon juice as eco-fuel

Vibhu T. Sivanandan, Ramany Revathy, Arun S. Prasad

Summary: In this study, pure and doped cobalt ferrite nanoparticles were prepared using the sol-gel auto-combustion method with the aid of lemon juice as eco-fuel. The crystal structure, lattice parameter, crystallite size, microstrain, optical parameters, and room temperature magnetic properties of the samples were analyzed. The effect of doping on the magnetic properties was also investigated.

JOURNAL OF ALLOYS AND COMPOUNDS (2024)

添加到收藏夹
Article Chemistry, Physical

Cu, Ni and Ag ions assisted preparation of nonpolar preferential oriented ZnO films with controlled morphology and optical properties

Qing Guo, Bowen Zhang, Benzhe Sun, Yang Qi

Summary: This study prepared ZnO films with various nonpolar preferred orientations using conventional chemical bath deposition method and characterized their growth process and mechanism. It was found that the type and concentration of nitrate could control the preferred orientation and surface roughness of ZnO films. Additionally, ZnO films with different preferred orientations exhibited different optical properties.

JOURNAL OF ALLOYS AND COMPOUNDS (2024)

添加到收藏夹
Article Chemistry, Physical

Characterization of magnetic FeCo particles with controlled bimetallic composition

Chong Zhang, Yan Liu, Zhaoyan Wang, Hang Yang

Summary: In this study, six bimetallic FeCo particles were synthesized via the hydrothermal method at different Fe:Co ratios. The Fe:Co ratio not only modulates the composition of the particles but also influences their structure and magnetic properties. The FeCo alloys showed a transformation from an Fe-based structure to a Co-based structure with increasing Co content. The Fe:Co ratio of 1:1 and 3:1 resulted in particles with the highest and lowest saturation magnetization, respectively.

JOURNAL OF ALLOYS AND COMPOUNDS (2024)

添加到收藏夹
Article Chemistry, Physical

Micro-alloying effects of Ta and B on nano-oxides and grain boundaries in 13CrWTi-ODS ferritic alloys

Jianning Zhang, Jing Li, Yiren Wang, Xiaodong Mao, Yong Jiang

Summary: We conducted a study on the formation of ultra-fine Y-Ti-Ta-O nano-oxides in Ta+B micro-alloyed 13CrWTi-ODS alloys using electron microscopy and first-principles calculations. The Y-Ti-Ta-O nano-oxides were found to be mainly Y2(Ti,Ta)2O7, with an average size of 7 nm and a number density of 6.8 x 1023 m-3. Excess boron was found to enhance the adhesion of some low-sigma grain boundaries but weaken the Fe/Y2Ti2O7 interface, while excess tantalum enhanced the Fe/Y2Ti2O7 interface but caused serious degradation of grain boundaries.

JOURNAL OF ALLOYS AND COMPOUNDS (2024)

添加到收藏夹
Article Chemistry, Physical

Nitrogen-doped reduced graphene oxide/black phosphorus quantum dot composites for electrocatalytic treatment of choroidal melanoma

Yirong Fang, Pei Cheng, Hang Yuan, Hao Zhao, Lishu Zhang

Summary: A new composite system of nitrogen-doped reduced graphene oxide and black phosphorus quantum dots has been developed for tumor therapy, showing improved electrochemical properties and stability. The system generates hydrogen peroxide and hydroxyl radical to effectively kill tumor cells.

JOURNAL OF ALLOYS AND COMPOUNDS (2024)

添加到收藏夹
Article Chemistry, Physical

Significantly enhanced magnetism in cobalt ferrite by manganese and terbium co-doping

Xiufang Qin, Yuanli Ma, Hui Zhang, Ting Zhang, Fang Wang, Xiaohong Xu

Summary: The structure and magnetism of cobalt ferrites after Mn2+-Tb3+ co-doping were studied. Co-doped samples exhibited cubic spinel structure and spherical shape of ferrite nanoparticles. The redistribution of Co2+ and Fe3+ ions between octahedral and tetrahedral sites was observed due to Mn2+-Tb3+ co-doping. The coercivity and magnetization saturation of co-doped samples were significantly improved, leading to a maximum energy product that is 190% higher than that of the un-doped sample.

JOURNAL OF ALLOYS AND COMPOUNDS (2024)

添加到收藏夹
Article Chemistry, Physical

High-performance low-temperature solid oxide fuel cell with nanostructured lanthanum strontium cobaltite/yttria-stabilized zirconia cathode via advanced co-sputtering

Ho Yeon Lee, Wonjong Yu, Yoon Ho Lee

Summary: Recently, there has been an increasing interest in developing ultra-fine nanostructured electrodes with extensive reaction areas to enhance the performance and low-temperature operation of solid oxide fuel cells. The use of a refined approach involving co-sputtering metal alloys and oxide targets has demonstrated the feasibility of nano-columnar structures in perovskite-based electrodes, expanding the temperature range of thin film electrodes. This study systematically examines the effects of chamber pressure control in the co-sputtering process and identifies the intricate relationship between sputtering pressure and film structure. By fine-tuning the columnar growth in the electrode, significant improvements in performance and thermo-mechanical properties were achieved, resulting in high-performance all-sputtered solid oxide fuel cells.

JOURNAL OF ALLOYS AND COMPOUNDS (2024)

添加到收藏夹
Article Chemistry, Physical

Amorphous quaternary alloy nanoplates for efficient catalysis of hydrogen evolution reaction

Qianyun Bai, Xiaoxiao Yan, Da Liu, Kang Xiang, Xin Tu, Yanhui Guo, Renbing Wu

Summary: This study proposes a simple method to develop a non-precious transition metal-based electrocatalyst with high catalytic activity and robustness for the hydrogen evolution reaction. The as-synthesized electrode exhibits a low overpotential and high current density, indicating its potential in energy conversion.

JOURNAL OF ALLOYS AND COMPOUNDS (2024)

添加到收藏夹
研讨会 海报 问题 讨论圈 基金 期刊 论文 科研社交 资讯集成 审稿人 关于我们 常见问题 移动App 隐私条款 使用条款
© Peeref 2019-2024. All rights reserved.