Article
Materials Science, Multidisciplinary
W. L. Hu, Y. X. Zhang, G. Yuan, X. M. Zhang, J. H. Zhao, G. D. Wang
Summary: The study aims to investigate the deformation mechanisms involved in Twin-roll Thin Strip Casting Process for high-permeability 6.5 wt.% Si electrical strip. Using crystal plasticity theory and VPSC model, the activation of single and multi-slip systems during deformation is analyzed to understand the evolution of crystallographic orientations. The proposed CP-based method serves as a reference for studying deformation behavior in other semi-solid forming processes.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2021)
Article
Materials Science, Multidisciplinary
Wanlin Wang, Hairui Qian, Dawei Cai, Lejun Zhou, Song Mao, Peisheng Lyu
Summary: An improved dip test apparatus was used to simulate strip casting of 6.5 wt pct Si steel, showing that the high cooling rate resulted in a strip with low iron loss and the magnetic permeability and iron loss varied with increasing heat treatment temperature. The as-cast strip mainly consisted of large columnar grains, with only small particles of MnS-TiN found, and after annealing, a large number of small particles such as TiN precipitated from the ferrite matrix. The magnetic permeability and iron loss of the silicon steel strip produced by strip casting are comparable to those of silicon steel products produced by other techniques.
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Di Zhang, Yingtao Su, Xingrui Yang, Huilan Sun, Zhihong Guo, Bo Wang, Cheng Ma, Zhongqi Dong, Liguang Zhu
Summary: Based on rapid solidification technology, Cu is incorporated into soft magnetic materials to achieve grain refinement. Cu dosage not only refines the average grain size to 8.7 µm but also improves the continuity and consistency of Fe-6.5 wt % Si steel strip. This is mainly attributed to Cu-rich particles precipitating at the grain boundary, which inhibit grain growth and improve magnetic and mechanical properties. The addition of 1.5 wt % Cu results in excellent magnetic properties and about 11% failure plastic deformation for the steel strip. This technology also has reference value for modifying the mechanical and magnetic properties of other metal materials.
Article
Automation & Control Systems
Dongpo Xuan, Cheng Zhou, You Zhou, Tianliang Jiang, Biji Zhu, Wenhao Fan, Yangguang Jia
Summary: Using finite element software ProCAST, the study predicted the temperature and flow fields, turbulent kinetic energy, and melt-pool outlet temperature in the top side-pouring twin-roll casting (TSTRC) process for 6.5 wt.% Si steel. The research investigated the impact of different process conditions on TSTRC and determined an appropriate processing technique for producing 6.5 wt.% Si steel, while also evaluating the influence of violent stirring in the melt-pool on microstructure formation. The results showed that vigorous stirring in the melt-pool was beneficial for forming an equiaxed crystal structure, achieving near-final shapes for both the metal sheet and microstructure. The chosen process demonstrated good consistency with experimental results.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Yizhou Du, Ronald J. O'Malley, M. F. Buchely, Paul Kelly
Summary: The study found that increased hot-rolling deformation leads to larger grain size, reduced core loss, and increased magnetic induction. Low carbon and sulfur steel compositions exhibit larger grain sizes after recrystallization annealing compared to high carbon and sulfur steels. Goss texture intensity decreases with increasing hot-rolling deformation.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2022)
Article
Materials Science, Multidisciplinary
Hao Dun, Yuanxiang Zhang, Nuojin Wang, Yang Wang, Feng Fang, Guo Yuan, R. D. K. Misra, Xiaoming Zhang
Summary: An oriented Fe-6.5 wt%Si alloy with excellent magnetic properties was successfully prepared using twin-roll strip casting. The abnormal Sigma 3 grain boundaries in the as-cast strip were studied. The experimental results showed that the Sigma 3 grain boundary in the alloy had good thermal stability and could refine the microstructure by inhibiting growth of structure in the as-cast strip. It also improved the toughness of the matrix and restrained crack propagation, which was beneficial for plastic working. Moreover, the low migration rate of the Sigma 3 grain boundary stabilized the matrix and helped achieve abnormal growth of Goss grains.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Haoze Li
Summary: In this study, a non-oriented electrical steel strip was fabricated using twin-roll strip casting and its microstructure and texture evolution were investigated under different hot and warm rolling reductions. The research showed that a proper combination of hot and warm rolling reductions can promote the formation of mixed annealing textures and enhance the magnetic properties.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Zhaoyang Cheng, Jing Liu, Zhidong Xiang, Juan Jia, Olena Volkova, Macro Wendler
Summary: The addition of Cu in the range of 0-1.0 wt% affects the magnetic induction and iron loss of 6.5 wt% Si electrical steel. Cu addition up to 0.7 wt% can slightly increase magnetic induction B50, while the iron loss decreases with increasing Cu addition up to 0.5 wt% before increasing again. The optimum range for achieving the best magnetic properties for 6.5 wt% Si electrical steel is found to be 0.3-0.5 wt% Cu.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2021)
Article
Nanoscience & Nanotechnology
Haoze Li, Min Li, Zhihui Cai, Lifeng Ma, Yingche Ma
Summary: By adding yttrium, the properties of Fe-6.5 wt.% Si steel were improved. The increase in yttrium content led to more high-melting precipitates, finer microstructure, and higher tensile ductility. The deformation mechanism varied at different temperatures.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Chemistry, Physical
Haijie Xu, Yunbo Xu, Youliang He, Haitao Jiao, Steve Yue, Jianping Li
Summary: The research investigated the nucleation and growth of Goss grains during primary and secondary recrystallization of a strip-cast grain-oriented Fe-6.5 wt% Si alloy using a quasi in situ electron backscatter diffraction (EBSD) technique. It was found that Goss grains nucleated from shear bands during primary recrystallization tend to survive during subsequent grain growth. Abnormally growing Goss grains were observed at the surfaces when the primary recrystallization temperature increased to 850 degrees C, consuming the entire thickness during secondary recrystallization. Using a classical grain growth model, the abnormal growth of Goss grains during secondary recrystallization could be roughly predicted.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Metallurgy & Metallurgical Engineering
Yizhou Du, Ronald J. OMalley, Mario F. Buchely, Paul Kelly
Summary: The effect of annealing time on texture evolution in Fe-3.4 wt% Si non-oriented electrical steel was investigated. The results showed that as the annealing time increased, the texture evolved in different stages and the grain size increased, with the formation of cube grains.
STEEL RESEARCH INTERNATIONAL
(2023)
Article
Nanoscience & Nanotechnology
Chaoyu Han, Feng Ye, Haoyang Du, Binbin Liu, Yongfeng Liang, Hui Li, Hualong Li
Summary: The electroplastic effect on Fe-6.5 wt% Si with intermetallic ordered phases was studied, and it was found that the fracture elongation increased dramatically and the yield strength decreased under electropulsing. The improvement in ductility was attributed to the increased microstructure deformation degree and the decreased volume fraction of ordered phases B2 and D03.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Nanoscience & Nanotechnology
Yuanxiang Zhang, Guo Yuan, Yang Wang, Feng Fang, Weina Zhang, Xiaoming Zhang, Guodong Wang
Summary: A novel high magnetic induction Fe-6.5%Si alloy was prepared by twin-roll strip casting, with a B-800 reaching up to 1.77 Telsa. The formation of Sigma 3 grain boundaries and their inheritance from the rolling and annealing processes stabilized the matrix grain boundaries, resulting in the formation of a perfect Goss microstructure with excellent magnetic properties.
SCRIPTA MATERIALIA
(2021)
Article
Metallurgy & Metallurgical Engineering
Li Min, Li Haoze, Wang Jijie, Ma Yingche, Liu Kui
Summary: This study aims to improve the plasticity of strip casting non-oriented 6.5%Si electrical steel through chemical modification. The results showed that the addition of Ce during strip casting promoted heterogeneous nucleation and refined the solidification microstructure, while not affecting the ordering condition of the as-cast strip. Increasing the tensile temperature improved grain-boundary cohesion and prevented intergranular cracking, eventually enhancing the tensile ductility through dynamic recovery and recrystallization. The rare-earth treatment is considered an effective method for increasing the ductility of strip casting non-oriented 6.5%Si electrical steel.
ACTA METALLURGICA SINICA
(2022)
Article
Chemistry, Physical
Tiansheng Yang, Kechao Lu, Jian Wang, Jia Xu, Zhigang Zheng, Xin Liu
Summary: A novel soft magnetic composites (SMCs) composed of Fe-6.5 wt%Si/nano-MnZn ferrites was prepared. The addition of nano-MnZn ferrites increased the effective permeability and reduced the hysteresis losses of the SMCs. SMCs with 2 wt% nano-MnZn ferrites annealed at 400°C exhibited the optimal comprehensive performances.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
Bibhutibhusan Nayak, S. Narayana Jammalamadaka
Summary: This article presents a method for remote detection of bovine serum albumin (BSA) using modified cantilever beam magnetometry (CBM). By combining a magnetostrictive Fe70Ga30 cantilever with optical detection technique, researchers were able to detect high concentrations of BSA remotely. The results of this study demonstrate the potential of this method in estimating the magnetostriction of thin films.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Yu Hao, R. E. Camley, Z. Celinski
Summary: Magnetic particles have various applications and their magnetic state is determined by their size and the strength of an applied magnetic field. Numerical simulations were performed to study the effect of an applied field on the critical size of single-domain magnetic particles, and the critical field at which a particle becomes single-domain was determined.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Nitesh Singh, Naresh Kumar, Dharohar Sahadot, Anil Annadi, Vidyadhar Singh, Murtaza Bohra
Summary: The unique magnetic properties of FM/AFM and hard-FM/soft-FM nanocomposite thin films have significant relevance for numerous applications. The composition and performance of different magnetic phases in the nanocomposite films can be significantly affected by the laser ablation conditions and annealing temperature.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Alya Ali Musaed, Samir Salem Al-Bawri, Khaled Aljaloud, Wazie M. Abdulkawi, Mohammad Tariqul Islam, Mandeep Jit Singh, Zaini Sakawi, Husam Hamid Ibrahim
Summary: This research presents a wideband tunable metamaterial for body-centric applications in the millimeter-wave frequency band. The proposed metamaterial has a wide operating frequency range and enhanced gain, making it suitable for improving the antenna performance in 5G wireless communication systems.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Binod K. Rai, Boris Maiorov, Krzysztof Gofryk, Patrick O'Rourke, Catherine Housley, Henry Ajo, Asraf Sawon, Arjun K. Pathak, Narayan Poudel, Qiang Zhang, Travis J. Williams, Matthias Frontzek
Summary: This manuscript reports on the structural and magnetic properties of NdCuGa3. The study confirmed the crystal structure and magnetic phase transition of NdCuGa3 using XRD, neutron diffraction, magnetization, and specific heat measurements. The neutron diffraction data further confirmed the antiferromagnetic phase of NdCuGa3.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Haonan Li, Cong Li, Hailiang Huang, Guodong Hao, Fei Wang
Summary: The electronic structure and ferroelectric-ferromagnetic coupling properties of Y-doped and vacancy-containing GaN-ZnO heterojunctions are systematically investigated. The magnetism in vacancy-containing systems is generated by the spin polarization of unpaired electrons induced by cationic vacancies, while in Y-doped systems, bound magnetic polarons are formed by the orbital hybridization of s-state and d-state electrons of Y-doped elements.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Muhammad Ijaz, Hafeez Ullah, Bandar Ali Al-Asbahi, Mati Ullah Khan, Zaheer Abbas, Sana Ullah Asif
Summary: M-type BaFe11.4-xAlxCo0.6O19 hexaferrites with Al3+ substitutions were synthesized using the co-precipitation method followed by Sonochemical process. The synthesized materials were characterized using XRD, FTIR, UV-vis spectroscopy, VSM, SEM, and LCR meter. The results showed that aluminum doping decreased the band gap and enhanced the magnetic and dielectric properties of the hexaferrites, making them suitable for various applications.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Oleg I. Utesov
Summary: The elementary excitations spectrum of anisotropic frustrated antiferromagnets in the fan phase is discussed. It is found that the low-energy part of the spectrum consists of a gapless phason branch with linear dispersion and a gapped optical branch corresponding to the fan structure amplitude oscillations. In the high-energy part of the spectrum, the excitations are similar to the magnons of the fully polarized phase.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Alexander Ya. Simonovskii, Alexander A. Yanovskii, Arthur R. Zakinyan
Summary: In this study, the departure frequency of vapor bubbles during boiling of ferrofluid in a horizontal magnetic field is experimentally investigated. Two methods, visual and inductive, are used to measure the frequency of bubble departure. The results show that the bubble departure frequency can decrease with increasing magnetic field strength and increase with increasing temperature of the heat-emitting surface. A linear stability analysis is conducted to analyze the influence of the magnetic field on the frequency of bubble formation during ferrofluid boiling.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Oleg Heczko, Michal Rames, Vit Kopecky, Petr Vertat, Michal Varga, Ladislav Straka
Summary: Heusler Ni-Mn-Ga alloys are multiferroic materials that exhibit magnetic shape memory (MSM) phenomena. By doping transition elements into Ni2MnGa alloys, the transformation temperatures can be modified and complex behaviors can be observed, such as the variation in saturation magnetization and the effects of elemental substitution on compound properties.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Carlos Ariel Samudio Perez, Ariel Flaig de Marchi
Summary: This study investigates the electronic and magnetic properties of the Full-Heusler Fe2MnAs alloy using first-principles calculations. The alloy may form spontaneously and exhibits a ferromagnetic order and high spin-polarization. It can be transformed into a half-metal by contracting the lattice constant. Additionally, certain defects contribute to the spin-polarization of the alloy, making it a fully half-metallic material.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Satish Geeri, Aditya Kolakoti, Prasadarao Bobbili
Summary: In this study, an electromagnetic wave-absorbing material was fabricated using a polymer composite material with fiber orientation and Multiwall Carbon Nanotubes as filler materials, along with a Perfect Electric Conducting material. The experiments demonstrated strong electromagnetic absorbing properties for the composites with PEC-coated and non-PEC-coated materials. Mechanical, thermal, and morphological analysis confirmed the similar trend in properties. CRITIC analysis helped identify the sequence order of sustaining properties for the fabricated composites.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Yankai Chen, Ruoxue Zhang, Yukai An
Summary: The piezoelectricity, valley character, and magnetic properties of 2H-VS2 monolayer were studied, revealing its potential applications in spintronics and valleytronics due to its bipolar magnetic semiconductor characteristics and superior physical properties.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Leonardo S. Lima
Summary: This study investigates the thermodynamic quantities, such as entropy, specific heat, and magnetic susceptibility, in the next-nearest-neighbors Heisenberg model on a honeycomb-kagome lattice. The linear spin-wave approach is applied to obtain the temperature-dependent behavior of these quantities. Additionally, the entanglement negativity, a quantifier of quantum entanglement, and the spin Hall conductivity are also studied. The results show that all the thermodynamic quantities, as well as the entanglement negativity and spin Hall conductivity, exhibit an increasing trend with temperature. Furthermore, it is found that all the analyzed quantities approach zero in the low-temperature limit, consistent with experimental observations.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Zhaoxing Wang, Maximilian Kai Reimann, Wang Chen, Yikun Zhang, Rainer Poettgen
Summary: The Mo2FeB2-type compounds RE2Ga2Mg (RE = Tm, Er, Ho) exhibit a large magnetocaloric effect, making them promising for cryogenic magnetic cooling applications.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2024)