Materials Science, Multidisciplinary

Article Materials Science, Multidisciplinary

Single-crystallization of electrolytic copper foils

Xingguang Li, Mengze Zhao, Quanlin Guo, Chong Zhao, Mingchao Ding, Dingxin Zou, Zhiqiang Ding, Zhiqiang Zhang, Menglin He, Kehai Liu, Muhong Wu, Zhihong Zhang, Enge Wang, Ying Fu, Kaihui Liu, Zhibin Zhang

Summary: This study presents a method of transforming industrial electrolytic copper foils into single crystals by facet copy from a single-crystal template. The obtained single-crystal electrolytic copper foils exhibit improved ductility, fatigue performance, and electrical property, opening up a new avenue for the preparation of single-crystal electrolytic copper foils.

JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY (2024)

Article Materials Science, Multidisciplinary

Near zero thermal performance loss of Al-Si microcapsules with fibers network embedded Al2O3 /AlN shell

J. X. Zhang, M. J. Zhang, H. F. Li, H. Z. Gu, D. Chen, C. H. Zhang, Y. F. Tian, E. J. Wang, Q. N. Mu

Summary: This paper presents the encapsulation of commercial Al-10Si alloy micro powders using hydrothermal treatment and heat treatment techniques. The flexible ceramic shells with excellent thermal stability were composed of AlN fibers network structure embedded with alpha-Al2O3/AlN. The microcapsules showed outstanding latent heat storage and release performance, as well as near zero thermal performance loss after 3000 cycles.

JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY (2024)

Article Materials Science, Multidisciplinary

Augmenting reactive species over MgIn2S4-In2O3 hybrid nanofibers for efficient photocatalytic antibacterial activity

Lina Wang, Peiyi Yan, Huairui Chen, Zhuo Li, Shu Jin, Xiaoxiang Xu, Jun Qian

Summary: The narrow bandgap semiconductor MgIn2S4 has been grown onto In2O3 nanofibers using an in situ growing method. The resulting MgIn2S4-In2O3 hybrid nanofibers exhibit strong visible light absorption and intimate MgIn2S4/In2O3 heterointerfaces, leading to highly efficient photocatalytic disinfection of Escherichia coli.

JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY (2024)

Article Materials Science, Multidisciplinary

Polydopamine wrapped polyaniline nanosheets: Synthesis and anticorrosion application for waterborne epoxy coatings

X. P. Hu, Y. H. Zhang, C. B. Liu, H. Z. Cui

Summary: In this study, a novel polyaniline (PANI) nanosheet with barrier and passivation functions was synthesized, and its interaction with polymeric resin was enhanced by polydopamine (PDA) wrapping. The composite coating with incorporated PANI@PDA nanosheets showed improved corrosion resistance by providing a longer penetration path and inducing the formation of a passivation film on the metal substrate.

JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY (2024)

Article Nanoscience & Nanotechnology

Planar fault transformation and unfaulting of interstitial dislocation loops in irradiated L12-Ni3Al

Cheng Chen, Fanchao Meng, Jun Song

Summary: This study systematically investigated the unfaulting mechanism of single-layer interstitial dislocation loops in irradiated L12-Ni3Al. The unfaulting routes of the loops were uncovered and the symmetry breaking during the unfaulting processes was further elucidated. A continuum model was formulated to analyze the energetics of the loops and predict the unfaulting threshold.

SCRIPTA MATERIALIA (2024)

Article Nanoscience & Nanotechnology

High dielectric temperature stability in the relaxor ferroelectric thin films via using a multilayer heterostructure

Jie Zhang, Xiaoyang Chen, MingJian Ding, Jiaqiang Chen, Ping Yu

Summary: This study enhances the compositional inhomogeneity of relaxor ferroelectric thin films to improve their dielectric temperature stability. The prepared films exhibit a relatively high dielectric constant and a very low variation ratio of dielectric constant over a wide temperature range.

SCRIPTA MATERIALIA (2024)

Article Materials Science, Multidisciplinary

Microstructure control and hot cracking behavior of the new Ni-Co based superalloy prepared by electron beam smelting layered solidification technology

Hongyang Cui, Yi Tan, Lidan Ning, Rusheng Bai, Xiaogang You, Chuanyong Cui, Pengting Li

Summary: By using an alternating reduced cooling method, the formation of hot cracks in Ni-Co based superalloys can be prevented and internal stresses can be reduced. This method also increases the solvus temperature of the γ-γ' eutectic phase and avoids the formation of liquid film.

JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY (2024)

Article Materials Science, Multidisciplinary

Enhanced mechanical properties of giant magnetostrictive Tb-Dy-Fe alloy via constructing semi-coherent interface between matrix phase and ductile grain boundary phase

Jiheng Li, Zhiguang Zhou, Zhaopeng Han, Zijing Yang, Xiaoqian Bao, Xuexu Gao

Summary: This study investigates the effects of diffusing Dy 36 Cu 64 alloy into the grain boundary phases of Tb-Dy-Fe alloy. The diffusion treatment improves the microstructural and mechanical properties, while minimally impacting the magnetostrictive properties.

JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY (2024)

Article Materials Science, Multidisciplinary

Enhanced photocatalytic hydrogen production of S-scheme TiO 2 /g-C 3 N 4 heterojunction loaded with single-atom Ni

Songyu Yang, Kailin Wang, Qiao Chen, Yan Wu

Summary: Single-atom Ni species deposited onto TiO2/g-C3N4 composite photocatalyst with an S-scheme heterojunction achieved highly efficient photocatalytic water splitting to produce hydrogen. The formation of the S-scheme heterojunction facilitated the combination of photo-excited electrons from TiO2 with photogenerated holes at g-C3N4, while the Ni atoms acted as surface catalytic centers to enhance the reactivity of the photocatalyst. This study provides a new approach for developing noble metal-free heterojunctions for high-performance photocatalysis.

JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY (2024)

Article Materials Science, Multidisciplinary

Amorphization transformation in high-entropy alloy FeNiCrCoCu under shock compression

Hongcai Xie, Zhichao Ma, Wei Zhang, Hongwei Zhao, Luquan Ren

Summary: The dynamic deformation behaviors of equiatomic FeNiCrCoCu high-entropy alloys were investigated using nonequilibrium molecular dynamics simulations. The study found that amorphization transformation facilitates dislocation nucleation and propagation, and different plasticity patterns are observed under different shock velocities. Moreover, a multi-level deformation mode was identified to significantly contribute to shock wave attenuation at a specific shock velocity.

JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY (2024)

Review Materials Science, Multidisciplinary

Time lapse in situ X-ray imaging of failure in structural materials under cyclic loads and extreme environments

Weijian Qian, Shengchuan Wu, Liming Lei, Qiaodan Hu, Changkui Liu

Summary: This article reviews the recent progress in material damage mechanism using various in situ testing rigs compatible with laboratory and synchrotron radiation X-ray facilities. Taking metallic alloys and composites as examples, the unique advantages of in situ X-ray three-dimensional tomography in revealing complex failure mechanisms, quantifying crack growth driving forces and crack closure phenomena, and elucidating the strengthening/degrading effects from microstructure and environment on structural material degradation are demonstrated. The ongoing direction of in situ multi-scale visualization and characterization is also discussed.

JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY (2024)

Article Materials Science, Multidisciplinary

Facile synthesis of FeNi nanoparticle-loaded carbon nanocomposite fibers for enhanced microwave absorption performance

Jinhu Hu, Zhengguo Jiao, Xukang Han, Jiao Liu, Mingliang Ma, Jialin Jiang, Yongbo Hou, Xingyue Wang, Chao Feng, Yong Ma

Summary: In this study, FeNi/C nanofibers were prepared by combining the advantages of Fe, Ni metals and one-dimensional carbon materials for electromagnetic microwave absorption. The FeNi/C nanofibers exhibited excellent absorption performance under dielectric/magnetic synergistic effect. The unique microstructure and electromagnetic properties of FeNi/C nanofibers contributed to its superior absorption performance.

JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY (2024)

Article Materials Science, Multidisciplinary

Synthesis of nitrogen-doped reduced graphene oxide/magnesium ferrite/polyaniline composite aerogel as a lightweight, broadband and efficient microwave absorber

Ruiwen Shu, Lijuan Nie, Ziwei Zhao, Xunhong Yang

Summary: In this work, a three-dimensional composite aerogel material composed of nitrogen-doped reduced graphene oxide, magnesium ferrite, and polyaniline was successfully synthesized. The aerogel exhibited low density, broad bandwidth, and strong absorption capacity. Compared with other materials, this composite aerogel showed better microwave absorbing performance and achieved the maximum absorption bandwidth at a low filling ratio.

JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY (2024)

Article Materials Science, Multidisciplinary

Conjugate ferrocene polymer derived magnetic Fe/C nanocomposites for electromagnetic absorption application

Aming Xie, Zhendong Ma, Ziming Xiong, Weijin Li, Lai Jiang, Qiu Zhuang, Siyao Cheng, Wei Lu

Summary: This study introduces ferrocene units into conjugated microporous polymers to produce magnetic Fe-C nanocomposites without heteroatom doping. The Fe-P-2C composite exhibits excellent absorption properties and reveals the electromagnetic wave absorption mechanism of carbon-based materials.

JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY (2024)

Article Materials Science, Multidisciplinary

An innovative wood derived carbon-carbon nanotubes-pyrolytic carbon composites with excellent electrical conductivity and thermal stability

Bihan Zhang, Leilei Zhang, Zhongkai Wang, Qian Gao

Summary: An innovative wood-derived carbon-carbon nanotubes-pyrolytic carbon composite material with significant compressive strength, excellent electrical conductivity, thermal stability, and mechanical properties was successfully fabricated. This material opens up a new approach for efficiently fabricating high-performance electronic device composites in high-temperature fields.

JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY (2024)

Article Materials Science, Multidisciplinary

An efficient scheme for accelerating the calculation of stacking fault energy in multi-principal element alloys

Haoran Sun, Zhigang Ding, Hao Sun, Junjun Zhou, Ji-Chang Ren, Qingmiao Hu, Wei Liu

Summary: The HCSA scheme efficiently and accurately predicts the SFEs of MPEAs by averaging SFEs from small supercells, outperforming traditional DFT calculations. It has been successfully applied to NiFe and Ni 10 Co 60 Cr 25 W 5 alloys, achieving significant error reduction and holding the potential to accelerate materials design and discovery processes.

JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY (2024)

Article Materials Science, Multidisciplinary

Corrosion behavior and mechanical property of Mg-4Li-1Ca alloys under micro-compressive stress

Yuanyuan Wang, Chengbao Liu, Zuojun Jiao, Lei Cai, Cong Sun, Deming Wang, Lanyue Cui, Cuie Wen, Rong-Chang Zeng

Summary: This study investigates the corrosion behavior and mechanical properties of an extruded Mg-4Li-1Ca alloy under different micro-compressive stresses. The results show that micro-compressive stress can induce grain growth and precipitation of second-phase particles, accelerating the corrosion rate. However, when the stress level reaches a certain point, the volume fraction of the second phase becomes the dominant factor controlling the corrosion rate, and residual stress is released, forming corrosion product films that weaken the microstructural effect on corrosion behavior.

JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY (2024)

Article Materials Science, Multidisciplinary

Hollow engineering of sandwich NC@Co/NC@MnO 2 composites toward strong wideband electromagnetic wave attenuation

Chenhao Wei, Lingzi Shi, Maoqing Li, Mukun He, Mengjie Li, Xinrui Jing, Panbo Liu, Junwei Gu

Summary: In this study, sandwich composites with hollow cavity, multiple hetero-interfaces, and hierarchical structures were fabricated through the cooperative processes of self-sacrifice strategy and sequential hydrothermal reaction. These composites exhibit a wide absorption bandwidth and high absorption intensity, providing a new approach for preparing efficient electromagnetic wave absorbers.

JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY (2024)

Article Materials Science, Multidisciplinary

In-situ X-ray computed tomography tensile tests and analysis of damage mechanism and mechanical properties in laser powder b e d fused Invar 36 alloy

Qidong Yang, Shuo Yang, Shiyu Ma, Junhan Zhou, Ye Zhou, Rongzheng Huang, Kai Wei, Zhaoliang Qu, Xujing Yang

Summary: This study investigates the microstructures and pore defects of Invar 36 alloy manufactured using laser powder bed fusion (LPBF) with different scanning speeds. The observations reveal the correlation between scanning speed and microstructure, as well as the influence on mechanical properties. In addition, the study evaluates the damage evolution and failure mechanisms through in-situ XCT tensile tests. Understanding the process-structure-property correlation lays the foundation for the widespread application of LPBF-processed Invar 36 alloy.

JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY (2024)

Article Materials Science, Multidisciplinary

Ultrasonic-assisted soldering W90 Tungsten heavy alloy to AZ31B Mg alloy using Sn- x Al alloy

Xudong Zhang, Wei Fu, Xiaoguo Song, Liangbo Chen, Zhuolin Li, Shengpeng Hu, Hong Bian

Summary: A double-layered W/Mg structure is formed by ultrasonic-assisted soldering of tungsten heavy alloy and magnesium alloy, serving as a new generation of nuclear radiation shielding material. The microstructure and mechanical properties of the joint are influenced by ultrasonication time, reaching maximum shear strength at 6 seconds.

JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY (2024)