Article
Chemistry, Physical
Mohammad Tauhidul Islam, Devika Nandwana, Jonathan Healy, Jenna K. Jaklich, Bowen Dong, Alexander Yu, Emily E. Moore, Yumi Ijiri, Scott K. McCall, Matthew A. Willard
Summary: (Fe1-xGax)92Zr8 amorphous and nanocrystalline alloys with x = 0.15 to x = 0.36 were investigated to improve the magnetic softness of Galfenol-type alloys and evaluate their magnetostrictive properties. It was found that annealing the rapidly solidified ribbons at 823 K for 1 h produced a nanocrystalline structure with body-centered cubic (BCC) Fe-Ga phase crystallization for x = 0.15 to x = 0.26. Beyond x = 0.26, the ribbons crystallized into BCC and a ternary intermetallic phase (ZrFe6Ga6) that negatively affected saturation magnetization, magnetic softness, and magnetostriction coefficient. The alloy with x = 0.26 annealed at 823 K for 1 h exhibited a peak magnetostriction of 10 ppm with saturation magnetization of 110 Am2/kg and coercivity of 260 A/m.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Multidisciplinary
Matthew N. Tianen, Keat G. Ong, Yongmei M. Jin
Summary: The research on non-Joulian magnetostriction phenomenon in Fe-Ga alloys reveals peculiar cellular magnetic domains with zigzag boundaries that are related to classical magnetic domain theory. The findings provide convincing evidence that the zigzag boundaries in Fe-Ga alloys are conventional V lines commonly observed in cubic magnetic crystals like Fe-Si alloys, highlighting the correlation between cellular and stripe domain structures in these materials.
Article
Materials Science, Multidisciplinary
Chengde Gao, Zihao Zeng, Shuping Peng, Cijun Shuai
Summary: Selective laser melting (SLM) was used for the first time to manufacture bulk polycrystalline Fe81Ga19 alloys, revealing the influence of different scanning paths on grain orientation and magnetostrictive properties. Zigzag scanning resulted in the best magnetostrictive properties and mechanical strength, indicating the potential of SLM for manufacturing magnetostrictive Fe-Ga alloys.
MATERIALS & DESIGN
(2022)
Article
Physics, Multidisciplinary
V. Vijayanarayanan, Himalay Basumatary, M. Manivel Raja, M. Mahendran
Summary: This study examines the effect of quenching on Fe-Ga alloys and found that quenching reduces the magnetostriction in the 25% Ga alloy but promotes a first-order transition in the production of the D0(3) structure in the 20% Ga alloy. Additionally, lowering the nonmagnetic element Ga enhances the saturation magnetization, while increasing Ga content and quenching temperature leads to more material flaws and dislocations.
INDIAN JOURNAL OF PURE & APPLIED PHYSICS
(2022)
Article
Physics, Multidisciplinary
V. Vijayanarayanan, Himalay Basumatary, M. Manivel Raja, M. Mahendran
Summary: This study investigates the effect of quenching on Fe100-x-Gax (x=20 and 25) alloys, comparing the properties of different gallium content alloys and finding that the presence of the D03 structure affects magnetostriction and decreases saturation magnetization.
INDIAN JOURNAL OF PURE & APPLIED PHYSICS
(2022)
Article
Chemistry, Physical
Kenya Nakajima, Marc Leparoux, Hiroki Kurita, Briac Lanfant, Di Cui, Masahito Watanabe, Takenobu Sato, Fumio Narita
Summary: This study investigated the magnetostriction characteristics and crystal structure of additive-manufactured Fe-Co alloys using directed energy deposition. The results showed that the additive-manufactured Fe-Co parts had better magnetostrictive performance compared to the hot-rolled Fe-Co alloy. The elongated voids formed during additive manufacturing changed the magnetostrictive behavior in a perpendicular direction.
Article
Materials Science, Multidisciplinary
Aliona Nicolenco, Yu Chen, Natalia Tsyntsaru, Henrikas Cesiulis, Eva Pellicer, Jordi Sort
Summary: In this study, Fe-Ga films with macroporous structure were prepared by electrodeposition on metallized silicon substrates templated with sub-micrometer-sized polystyrene spheres, showing larger magnetic-field-induced crystal deformation compared to non-templated and fully-dense films. These effects in porous Fe-Ga films are promising for the design of various strain-engineered nanomaterials.
MATERIALS & DESIGN
(2021)
Article
Engineering, Electrical & Electronic
Meng Xu, Qiang Zhang, Qiuyun Tan, Wendong Zhang, Shengbo Sang, Kun Yang, Yang Ge
Summary: Piezoelectric flexible magnetic field sensors have gained considerable attention due to their high sensitivity and fast response time. In this study, a BaTiO3-Fe-Ga & PDMS flexible magnetic sensor is reported and its magnetic field detection performance is validated through simulation and experimentation. The results demonstrate that the sensor with a BaTiO3 concentration of 20% exhibits the best performance, with a sensitivity of 3.4 V/T.
SENSORS AND ACTUATORS A-PHYSICAL
(2022)
Article
Materials Science, Multidisciplinary
Zijing Yang, Jiheng Li, Zhiguang Zhou, Jiaxin Gong, Xiaoqian Bao, Xuexu Gao
Summary: This review provides an overview of the research progress in Tb-Dy-Fe alloys. It starts with an introduction to their characteristics and then focuses on studies regarding crystal growth, process improvement, and the effects of substitute elements. The article also summarizes the progress made in mechanical properties, composite materials, and sensor applications. Furthermore, it presents future prospects and emphasizes the importance of this review in guiding the development of novel magnetostrictive materials.
Review
Chemistry, Physical
Igor S. S. Golovin
Summary: This review focuses on the magneto-elastic properties of Fe-Ga alloys, particularly their magnetostriction in low saturation magnetic fields. The anelastic properties of these alloys, including frequency, amplitude and temperature dependencies, are analyzed. Special attention is paid to anelasticity caused by phase transitions, and comparison between Fe-Ga, Fe-Al alloys and the effect of RE elements is discussed.
Article
Materials Science, Multidisciplinary
Fabio Martins Cardoso, Cristina Bormio-Nunes
Summary: The study successfully prepared a FeCoNi(GaNb)(0.20) multicomponent alloy with low magnetostriction and high permeability values, suitable for use in electric machines and magnetic devices in the subkilohertz frequency range.
ADVANCED ENGINEERING MATERIALS
(2021)
Article
Chemistry, Physical
Yiqun Zhang, Peiyuan Sun, Junming Gou, Xiaolian Liu, Tianzi Yang, Caiyin You, Tianyu Ma
Summary: This study investigated the depth-dependent phase transformation and magnetostriction of Fe75Ga25 alloy during isothermal aging, revealing a gradual enhancement of magnetostriction from the material surface to the interior. The change in precipitates' structure and morphology, from face-centered cubic to face-centered tetragonal, was found to contribute to this phenomenon. The presence of the negative magnetostriction constant in the face-centered cubic phase, contrary to that of the body-centered cubic matrix, played a key role in the observed magnetostriction enhancement.
APPLIED SURFACE SCIENCE
(2021)
Article
Materials Science, Multidisciplinary
Yiqun Zhang, Junming Gou, Tianzi Yang, Yubin Ke, Tianyu Ma
Summary: A non-equilibrium time-temperature-transformation (TTT) diagram and the corresponding time-temperature-property (TTP) relation were determined for Fe73Ga27 alloy, which exhibits significantly enhanced magnetostriction with the formation of coherent L6(0) nanoprecipitates. The diagram provides a processing base for enhancing the magnetostriction of Fe-Ga alloys and can offer important guidance for tailoring the microstructure of other nanoprecipitates-bearing alloys with similar diffusion-controlled phase transformation.
Article
Physics, Applied
L. Galdun, R. Vidyasagar, M. Hennel, M. Varga, T. Ryba, L. Nulandaya, O. Milkovic, M. Reiffers, J. Kravcak, Z. Vargova, R. Varga
Summary: The experimental observation of the structural phase transformation in a non-stoichiometric shape memory Fe42.8Mn27.6Ga29.6 Heusler glass-coated microwire was found to be in good agreement with magnetic, permeability, and electrical resistance measurements, providing evidence for the shape memory effect. The glass-coated microwire can not only shift the transformation temperature with an external magnetic field, but also determine whether the alloy has undergone structural transformation based on its initial permeability value.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2022)
Article
Nanoscience & Nanotechnology
Meng Sun, Lan Li, Caixing Liu, Xueqing Liu, Weibin Jiang, Yawei Lei, Yunxia Gao, Zhijun Cheng, Xianping Wang, Zhigao Sheng, Xuebang Wu, Qianfeng Fang, Changsong Liu
Summary: Fe-18at.%Ga single crystals exhibit ultra-high anisotropic magneto-mechanical hysteresis-type damping with temperature and frequency insensitivity, with the orientation factor playing a significant role in this property.
SCRIPTA MATERIALIA
(2022)
Article
Chemistry, Physical
Cheng-Han Li, Jason Wu, Andrew Bean Getsoian, Giovanni Cavataio, Joerg R. Jinschek
Summary: By using advanced characterization techniques, the correlation between atomic-scale morphology and catalytic activity in Rh/Al2O3 catalysts has been revealed, and the formation and disappearance of rhodium aluminate (RhAlOx) during deactivation and regeneration processes has been observed.
CHEMISTRY OF MATERIALS
(2022)
Article
Anatomy & Morphology
Sriram Vijayan, Rongxuan Wang, Zhenyu Kong, Joerg R. Jinschek
Summary: This study introduces a new method to generate thermal gradients across a TEM specimen by modifying a MEMS-based heating stage. Results showed that the temperature in the central viewing area of the unmodified device was slightly lower than the setpoint temperature, while the modified device exhibited thermal gradients up to 7.0 x 10(6) degrees C/m at the edge.
MICROSCOPY RESEARCH AND TECHNIQUE
(2022)
Editorial Material
Materials Science, Multidisciplinary
Jorg Jinschek, Sophie Primig, Gwenaelle Proust
JOURNAL OF MATERIALS SCIENCE
(2022)
Article
Nanoscience & Nanotechnology
Pritam Banerjee, Chiranjit Roy, Antonio J. Santos, Subhra Kanti De, Francisco M. Morales, Somnath Bhattacharyya
Summary: The atomically resolved 3D shape of small nanoparticles sized below 20 nm, with {111}, {010}, and {001} facets exposed, was successfully reconstructed using inline 3D holography, revealing nanocuboid and truncated tetragonal bipyramids shapes. This method was validated on a non-cubic tetragonal system with a complex arrangement of light and heavy atoms.
MATERIALS TODAY NANO
(2022)
Article
Multidisciplinary Sciences
Catrina E. Wilson, Amanda E. Gibson, Paul M. Cuillier, Cheng-Han Li, Patrice H. N. Crosby, Edward B. Trigg, Stan Najmr, Christopher B. Murray, Joerg R. Jinschek, Vicky Doan-Nguyen
Summary: This study investigates the nuances of the first-order phase transition in vanadium dioxide through local structure analysis and other experimental methods, revealing the local V-oxidation induced by tungsten-substitution. The findings are significant for understanding the mechanism of phase transition.
SCIENTIFIC REPORTS
(2022)
Article
Engineering, Manufacturing
Michael Pagan, Ningxiner Zhao, Leon M. Headings, Marcelo J. Dapino, Sriram Vijayan, Joerg R. Jinschek, Steven J. Zinkle, S. S. Babu
Summary: This study investigated the strengthening effects in materials bonded by the high strain rate plastic deformation process, UAM. The results show that the material became harder after the UAM process, and the foil-foil interfaces became harder than the bulk foil material. These strengthening effects are attributed to microstructure changes resulting from dynamic recrystallization, dynamic recovery, adiabatic heating, and precipitate dissolution.
ADDITIVE MANUFACTURING
(2022)
Article
Chemistry, Multidisciplinary
Chiranjit Roy, Pritam Banerjee, Srijan Mondal, Somnath Bhattacharyya
Summary: Transition metal-based carbo-nitride solid solution phases have wide applications in various industries due to their excellent combination of metallic and ceramic properties. However, the current synthesis methods are costly, limiting their application range. A simple, cost-effective, energy-efficient, and environmentally friendly synthesis method is required. The molten salt-assisted synthesis method meets these requirements. In this study, carbo-nitrides were synthesized at lower temperatures and shorter times using this method, and characterized using various techniques.
MATERIALS TODAY CHEMISTRY
(2022)
Article
Engineering, Chemical
Chiranjit Roy, Srijan Mondal, Pritam Banerjee, Somnath Bhattacharyya
Summary: Transition metal-based boride-like layered MAB phases have gained attention due to their excellent combination of metal-ceramic properties. This study successfully synthesized WAlB and Mn2AlB2 MAB phases at lower temperatures and shorter soaking time using a newly developed method.
ADVANCED POWDER TECHNOLOGY
(2023)
Article
Chemistry, Physical
Chiranjit Roy, Subhra Kanti De, Pritam Banerjee, Soumen Pradhan, Somnath Bhattacharyya
Summary: Recently, the attention on 2D material MXene has risen due to its unique properties. However, MXenes suffer from poor chemical stability which hinders their applications. This study finds that polar solvents and freezing conditions are suitable for preventing or delaying the degradation of Ti2CTx MXene.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Multidisciplinary
Christian Kisielowski, Petra Specht, Stig Helveg, Fu-Rong Chen, Bert Freitag, Joerg Jinschek, Dirk Van Dyck
Summary: The relation between energy-dependent particle and wave descriptions of electron-matter interactions on the nanoscale was analyzed by measuring the delocalization of an evanescent field. The study found that the spatial extension of the field coincided with the energy-dependent self-coherence length of propagating wave packets. The findings suggest that wave packets are created by self-interferences during coherent-inelastic Coulomb interactions, and exhibit particle-like behavior for high electron energy losses.
Article
Crystallography
Zanlin Qiu, Joerg R. R. Jinschek, Pelagia-Irene Gouma
Summary: This study presents a reliable method for obtaining hexagonal tungsten trioxide (h-WO3) through solvothermal synthesis and dehydration annealing, and investigates the effects of precursor concentration, water content, synthesis temperature, synthesis time, and dehydration temperature on the crystal structure and morphology of the synthesized h-WO3.
Article
Engineering, Manufacturing
Rohan Casukhela, Sriram Vijayan, Joerg R. Jinschek, Stephen R. Niezgoda
Summary: This paper outlines a framework for designing and selecting data collection workflows for autonomous experimentation systems. The framework was applied to select an optimal high-throughput workflow for characterizing a material sample using a deep-learning based image denoiser.
INTEGRATING MATERIALS AND MANUFACTURING INNOVATION
(2022)
Review
Chemistry, Multidisciplinary
Kathrin L. Kollmannsberger, Laura Kronthaler, Joerg R. Jinschek, Roland A. Fischer
Summary: This review highlights recent advances in the controlled synthesis of MA@MOF materials for atom-precise metal aggregates. It focuses on the main synthetic strategies and approaches to achieve novel hierarchical MA@MOF structures, as well as providing an overview of standard characterization methods and techniques for localizing MA within MOF cavities.
CHEMICAL SOCIETY REVIEWS
(2022)
Article
Chemistry, Multidisciplinary
Pritam Banerjee, Chiranjit Roy, Juan Jesus Jimenez, Francisco Miguel Morales, Somnath Bhattacharyya
Summary: Semiconducting quantum dots (QDs) with shape-dependent (opto) electronic properties have potential applications in light-emitting diodes, single-photon sources, and quantum computing. Atomic resolution tomography of QDs below 10 nm remains a challenge, but the emerging and promising technique of inline-3D-holography has shown success in reconstructing atomically resolved 3D structures of QDs in this size range.
Article
Chemistry, Multidisciplinary
Surachet Duanghathaipornsuk, Dong-Shik Kim, Tamara L. Phares, Cheng-Han Li, Joerg R. Jinschek, Ana C. Alba-Rubio
Summary: Excessive hydroxyl radicals (OH) in the human body can lead to oxidative stress-related diseases, with a supersensitive nanosensor integrated with an electrochemical method being able to measure the concentration of OH accurately. This method has shown high selectivity and the ability to differentiate OH from other reactive oxygen species.
