Article
Multidisciplinary Sciences
Marie E. Fiori, Kushal Bagchi, Michael F. Toney, M. D. Ediger
Summary: Superlattice structures of organic semiconductors Alq3 and DSA-Ph were prepared using PVD to study interfacial packing near buried organic-organic interfaces. Both X-ray scattering and spectroscopic ellipsometry results indicate that the substrate has a negligible influence on the PVD glass structure, suggesting the surface equilibration mechanism can describe PVD glass structure even within the first monolayer deposition on an organic substrate.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2021)
Article
Biochemical Research Methods
Tomas Rosen, Ruifu Wang, HongRui He, Chengbo Zhan, Shirish Chodankar, Benjamin S. Hsiao
Summary: This study presents a flow-focusing mixing device for in situ nanostructural characterization using scanning-SAXS, allowing for accurate analysis of mixing processes over time and providing insights into the dynamics of nanocellulosic materials formation.
Article
Multidisciplinary Sciences
Veronika Lackova, Martin A. Schroer, Dirk Honecker, Martin Hahsler, Hana Vargova, Katarina Zakutanska, Silke Behrens, Jozef Kovac, Dmitri I. Svergun, Peter Kopcansky, Natalia Tomasovicova
Summary: Clustering of magnetic nanoparticles significantly affects their collective magnetic properties, with non-monotonic dependencies observed in magnetization curves and the Freeedericksz transition on nanoparticle concentration. The formation of clusters and orientation of liquid crystal molecules in response to magnetic field strength were investigated, showing potential for tunable materials.
Article
Chemistry, Multidisciplinary
Ferdinand Otto, Xing Sun, Florian Schulz, Carlos Sanchez-Cano, Neus Feliu, Fabian Westermeier, Wolfgang J. Parak
Summary: X-ray photon correlation spectroscopy is used to determine the hydrodynamic diameters of gold nanoparticles in biological environments, providing an in situ method that overcomes the limitations of traditional visible light detection techniques.
Article
Chemistry, Multidisciplinary
Ziyi Miao, Cindy Y. Zheng, George C. Schatz, Byeongdu Lee, Chad A. Mirkin
Summary: The study focuses on assembling nanoparticles of different shapes using DNA on substrates and investigating their reorganization into two-dimensional crystalline films under thermal conditions. Two new low-density 2D structures were reported, including a honeycomb lattice based on octahedral nanoparticles.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Multidisciplinary Sciences
Michael Wagener, Stephan Foerster
Summary: The scattering of various types of radiation by matter is widely used for structural characterization. With the advancement of beam sources and detectors, scattering patterns can now be acquired quickly and at large sizes. However, the slow analysis of these patterns has become a bottleneck. In this study, an algorithm based on hypergeometric functions is introduced, providing a significant increase in computational speed compared to current methods. This algorithm enables real-time experiment feedback, analysis of large scattering datasets, and generation of training data for machine learning.
SCIENTIFIC REPORTS
(2023)
Article
Chemistry, Physical
Badri Narayanan Narasimhan, Alexander W. Dixon, Bradley Mansel, Andrew Taberner, Jitendra Mata, Jenny Malmstrom
Summary: This study investigates hydrogels made with semi-interpenetrating networks of oligomerized polyphenol tannic acid and poly(acrylamide). The presence of micron-sized hydrogen bonded clusters in the hydrogels and the breaking of these clusters above a critical solution temperature are observed using small angle X-ray scattering and small and ultra-small angle neutron scattering. Polarized optical microscopy shows enhanced anisotropy for gels with oligomerized tannic acid, and rheological studies reveal self-healing behavior of the gels. The findings from this study contribute to the rational design of hydrogels for biomedical applications.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Multidisciplinary Sciences
J. S. Park, J. D. Almer, K. C. James, L. J. Natanson, S. R. Stock
Summary: Members of subclass Elasmobranchii possess bioapatite mineralization in their cartilage skeletons, which has similar crystallography to bone but exhibits some differences. The mineral phase in shark centra has larger nanocrystallite sizes and is associated with less microstrain compared to bone.
JOURNAL OF THE ROYAL SOCIETY INTERFACE
(2022)
Article
Chemistry, Multidisciplinary
Zhong-Peng Lv, Martin Kapuscinski, Gabor Jarvas, Shun Yu, Lennart Bergstrom
Summary: In this study, structural transformations and lattice expansion of oleate-capped iron oxide nanocube superlattices during solvent removal were investigated. The combination of COSMO-RS theory and CFD modeling provided information on solvent composition and polarity during droplet evaporation. It was found that the presence of a sufficient amount of added oleic acid and an increase in polarity as the poor solvent is enriched are both necessary to promote the formation of structurally diverse superlattices with large domain sizes.
Article
Materials Science, Multidisciplinary
Kakeru Obayashi, Kazutaka Kamitani, Chien-Wei Chu, Ryosuke Kawatoko, Chao-Hung Cheng, Atsushi Takahara, Ken Kojio
Summary: The internal structure of polyurethane adhesive undergoes changes during lap shear deformation, with an increase in the spacing of hard segment domains and the merging of tilt angle with the stretching direction. These findings are of great significance for the practical design of adhesives.
ACS APPLIED POLYMER MATERIALS
(2022)
Article
Chemistry, Physical
Simon Buchheiser, Max Philipp Deutschmann, Frank Rhein, Amanda Allmang, Michal Fedoryk, Bjoern Stelzner, Stefan Harth, Dimosthenis Trimis, Hermann Nirschl
Summary: The influence of different fuel-air equivalence ratios on particle morphology, size and degree of oxidation in an iron-air model burner is investigated. It is found that leaner combustion conditions lead to smaller particle size and higher degree of oxidation. Additionally, choosing a suitable particle size range can minimize residual iron content.
Article
Biochemistry & Molecular Biology
Richard G. Haverkamp, Katie H. Sizeland, Hannah C. Wells, Christina Kamma-Lorger
Summary: This study demonstrates that dehydration causes structural changes in type I collagen fibrils, resulting in a shortening of fibril length through an increase in the gap region and a decrease in the overlap region. Only with further dehydration does the length of collagen fibrils decrease.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2022)
Article
Multidisciplinary Sciences
Stephanie Hutin, Janet R. Kumita, Vivien I. Strotmann, Anika Dolata, Wai Li Ling, Nessim Louafi, Anton Popov, Pierre- Emmanuel Milhiet, Martin Blackledge, Max H. Nanao, Philip A. Wigge, Yvonne Stahl, Luca Costa, Mark D. Tully, Chloe Zubieta
Summary: Liquid-liquid phase separation is a crucial mechanism for the dynamic compartmentalization of macromolecules in response to physicochemical factors. In the model plant Arabidopsis thaliana, the protein ELF3 drives temperature-sensitive growth by undergoing liquid-liquid phase separation. Through a combination of biochemical, biophysical, and structural techniques, this study investigates the behavior of the ELF3 protein with varying lengths of its poly-glutamine tract. The results show that the dilute phase of ELF3 forms a monodisperse higher-order oligomer, which undergoes pH- and temperature-sensitive phase separation, leading to the formation of a hydrogel.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2023)
Article
Energy & Fuels
J. Jennings, D. J. Growney, H. Brice, O. O. Mykhaylyk, S. P. Armes
Summary: Asphaltenes, complex carbon-rich molecules found in crude oil, have a strong tendency to aggregate and phase separate. This causes issues in crude oil extraction, refining, and application. Understanding the morphology and mechanisms of asphaltene aggregation and designing stabilizers to prevent phase separation have been the focus of research. Imaging techniques and light scattering provide limited structural information, while small-angle scattering and X-ray diffraction offer a wealth of information about asphaltene structure.
Article
Chemistry, Physical
Samuel Minier, Hyeong Jin Kim, Jonathan Zaugg, Surya K. Mallapragada, David Vaknin, Wenjie Wang
Summary: Modifying nanoparticle surfaces with water-soluble polymers can alter interparticle interactions and affect their assembly into ordered phases. Experiments show that adding NaCl to suspensions induces surface enrichment, and the molecular weight of PNIPAM plays a crucial role in the formation of ordered structures.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Materials Science, Multidisciplinary
Simon Schweidler, Henrik Schopmans, Patrick Reiser, Evgeniy Boltynjuk, Jhon Jairo Olaya, Surya Abhishek Singaraju, Franz Fischer, Horst Hahn, Pascal Friederich, Leonardo Velasco
Summary: High-entropy alloys offer a wide research area for new material compositions and applications. A high-throughput magnetron sputtering synthesis method is presented to fabricate a new HEA gradient layer, allowing for the study of the composition of the HEA system and the influence of individual elements on material properties.
ADVANCED ENGINEERING MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Alexander D. Dupuy, Mohammed Reda Chellali, Horst Hahn, Julie M. Schoenung
Summary: The formation mechanisms of Cu-rich and Co-rich secondary phases in rocksalt-structured entropy-stabilized oxides were studied. It was found that these secondary phases do not nucleate directly, but first form precursor phases rich in Cu and Co, respectively, and then undergo structural transformations. The growth of secondary phases is controlled by cation diffusion within the primary phase.
JOURNAL OF MATERIALS RESEARCH
(2023)
Article
Materials Science, Multidisciplinary
Yemao Lu, Horst Hahn, Yulia Ivanisenko
Summary: In this study, a CoCrFeMnNi high-entropy alloy with reduced Cr content and the addition of 2 at% C interstitial was processed via high-pressure torsion. The results show that C atoms segregate at the boundaries of nanograins in the sample processed at room temperature, while no notable segregations of carbon were observed in the sample processed at cryogenic temperature.
ADVANCED ENGINEERING MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Abhishek Sarkar, Di Wang, Mohana Kante, Luis Eiselt, Vanessa Trouillet, Gleb Iankevich, Zhibo Zhao, Subramshu S. Bhattacharya, Horst Hahn, Robert Kruk
Summary: Technologically relevant strongly correlated phenomena exhibited by perovskite manganites are enhanced by the coexistence of multiple competing magneto-electronic phases. The recently discovered high entropy oxides exhibit indications of an inherent magneto-electronic phase separation encapsulated in a single crystallographic phase. Combining the high entropy concept with standard property control, the study demonstrates the potential for a synergetic development of strongly correlated oxides offered by the high entropy design approach.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Gleb Iankevich, Abhishek Sarkar, Shyam Katnagallu, Mohammed Reda Chellali, Di Wang, Leonardo Velasco, Ruby Singh, Thomas Reisinger, Robert Kruk, Horst Hahn
Summary: Nanocomposite materials, with the ability to tailor their structural properties and functionalities, play a unique role in materials science. This study demonstrates the possibility of achieving nanocomposites from a bimetallic system, which overcomes the limitations of thermodynamic stability conditions. By co-depositing 2000-atom Ni-clusters and Cu-atoms, nanocomposite samples with different compositions are synthesized. The retention of the metastable nanostructure is confirmed through various characterization techniques. The magnetic properties of the nanocomposites can be tailored by controlling the Ni concentration, offering a promising direction for future research on nanocomposites consisting of fully miscible elements.
ADVANCED MATERIALS
(2023)
Editorial Material
Nanoscience & Nanotechnology
Anatolie S. Sidorenko, Horst Hahn, Vladimir Krasnov
BEILSTEIN JOURNAL OF NANOTECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Mohana Kante, Moritz L. Weber, Shu Ni, Iris C. G. van den Bosch, Emma van der Minne, Lisa Heymann, Lorenz J. Falling, Nicolas Gauquelin, Martina Tsvetanova, Daniel M. Cunha, Gertjan Koster, Felix Gunkel, Slavomir Nemsak, Horst Hahn, Leonardo Velasco Estrada, Christoph Baeumer
Summary: High-entropy materials show promise as high-activity catalysts for electrochemical energy storage due to their tunability and multiple potential active sites. This study examines the catalytic activity of high-entropy perovskite oxides (HEOs) for the oxygen evolution reaction (OER) and finds that HEOs outperform their parent compounds by a factor of 17 to 680. X-ray photoemission studies suggest that simultaneous oxidation and reduction of different transition metal cations contribute to the high activity of HEOs.
Article
Materials Science, Ceramics
F. A. Orjuela, F. F. Vallejo, H. Hahn, J. J. Olaya, J. E. Alfonso, L. Velasco
Summary: AlCrTiN coatings were deposited on aluminum-silicon alloy substrates using RF magnetron sputtering. The coatings exhibited a hexagonal Wurtzite structure with preferential growth on the (002) direction. Increasing nitrogen flow resulted in a decrease in crystallite size. The coatings showed improved hardness, wear resistance, and fracture toughness compared to the uncoated substrate.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Physical
Shabnam Taheriniya, Nuri Choi, Sangsun Yang, Reshma Sonkusare, Ji Hun Yu, Jai -Sung Lee, Harald Roesner, Martin Peterlechner, Torben Boll, Christoph Gammer, Horst Hahn, Sergiy V. Divinski, Gerhard Wilde
Summary: Additive manufacturing using selective laser melting was used to fabricate a CoCrFeMnNi high-entropy alloy. Analysis techniques such as transmission electron microscopy, nanobeam diffraction, atom probe tomography, and nanoindentation were employed to study the evolution of microstructure and nano-hardness upon annealing. A complex mechano-chemical coupling was observed, leading to segregation and phase separation at grain boundaries. The 3D-printed alloy exhibited increased and homogenized hardness due to the synergetic effects of segregation, nano-precipitation, and dislocation accumulation at high-angle grain boundaries.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Mohana Kante, Horst Hahn, Subramshu S. Bhattacharya, Leonardo Velasco
Summary: High entropy oxides (HEOs), a new class of materials, have attracted a lot of attention due to their interesting optical, electrochemical, magnetic, and catalytic properties. To understand the complex interactions in these materials, it is important to evaluate them in dense forms, such as pellets or thin films. In this study, dense films of fluorite structured (CeLaSmPrY)O2-x have been synthesized using sol-gel and pulsed laser deposition processes, showing different microstructural characteristics. This research provides a foundation for comprehensive studies and possible applications of dense fluorite (CeLaSmPrY)O2-x films.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Nanoscience & Nanotechnology
Zhenfei Jiang, Weiping Chen, Chenliang Chu, Zhiqiang Fu, Julia Ivanisenko, Hao Wang, Siyuan Peng, Yemao Lu, Enrique J. Lavernia, Horst Hahn
Summary: We report a novel low-cost FeNi0.9Cr0.5Al0.4 high entropy alloy with a unique fibrous heterogeneous solidification microstructure, which consists of fibers-like face-centered-cubic soft phases enveloped in nano-sized ordered body-centered-cubic hard shells. The fibrous microstructure is responsible for its notable mechanical properties, including a yield strength of -670 MPa, an ultimate tensile strength of -1196 MPa, and a uniform elongation of -21.1% at room temperature. The combination of high strength and good ductility is attributed to the hetero-deformation induced hardening mechanism generated from the soft-fiber and hard-shell interface. The cost-effectiveness and outstanding tensile properties make this as-cast FeNi0.9Cr0.5Al0.4 alloy an ideal candidate for structural applications.
SCRIPTA MATERIALIA
(2023)
Article
Nanoscience & Nanotechnology
Junjie Wang, Ning Zhao, Mengyang Yan, Zongde Kou, Shu Fu, Shangshu Wu, Sinan Liu, Si Lan, Zesheng You, Di Wang, Horst Hahn, Tao Feng
Summary: The strength-plasticity synergy of Al/CoCrFeNi nanocrystalline high-entropy alloy composite was achieved via nanoscale diffusion induced phase transition process. The annealed 16%-Al/CoCrFeNi nc-HEAC exhibited a yield strength of 1338 MPa and elongation of 12.1%, showing a combination of outstanding strength and considerable ductility. This work revealed the synergy of multiple strengthening mechanisms and established a novel phase engineering design strategy for high-performance alloys.
SCRIPTA MATERIALIA
(2023)
Article
Chemistry, Physical
Mukesh Kumbhakar, Anurag Khandelwal, Shikhar Krishn Jha, Monaha Veerraju Kante, Pirmin Kessler, Uli Lemmer, Horst Hahn, Jasmin Aghassi-Hagmann, Alexander Colsmann, Ben Breitung, Leonardo Velasco, Simon Schweidler
Summary: High-throughput synthesis and characterization techniques are increasingly important for complex materials and advanced functional compounds. This study focuses on the compilation of high-entropy oxide material libraries with tunable band gaps for semiconductor applications. The material libraries include rare-earth oxides with 5, 6, and 7 different cations in near equimolar concentrations, as well as medium entropy ranges. The atmosphere used during synthesis affects the band gap, and multivalent rare-earth cations enable reversible tuning of the band gap between 2.0 and 3.5 eV under different atmospheres.
ADVANCED ENERGY MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Hendrik Voigt, Aaron Rigoni, Evgeniy Boltynjuk, Harald Roesner, Horst Hahn, Gerhard Wilde
Summary: The crystallization processes of glass-glass interfaces in sputtered CuZr thin film nanoglasses were directly studied using in situ heating experiments in a transmission electron microscope (TEM). By combining in situ technique with symmetry analysis and electron correlation microscopy, correlations between excess volume and nucleation kinetics were obtained on a microscopic scale. It was found that glass-glass interfaces with increased excess volume promoted the onset of crystal nucleation.
MATERIALS RESEARCH LETTERS
(2023)
Article
Chemistry, Physical
Ling Lin, Ziming Ding, Guruprakash Karkera, Thomas Diemant, Mohana V. V. Kante, Daisy Agrawal, Horst Hahn, Jasmin Aghassi-Hagmann, Maximilian Fichtner, Ben Breitung, Simon Schweidler
Summary: High-entropy sulfides (HESs), as a newly developed class of materials, show great potential as efficient electrocatalysts for various reactions. In this study, HESs containing five or six transition metals are synthesized using a one-step mechanochemical process. By comparing the performances and properties of HESs with different compositions and structures with commercial IrO2, it is found that most of the HESs exhibit excellent electrocatalytic performance for the oxygen evolution reaction (OER) under alkaline conditions, outperforming the reference catalyst IrO2.
Article
Nanoscience & Nanotechnology
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
Nanoscience & Nanotechnology
Xiaoyu Chen, Ranran Zhang, Hao Zou, Ling Li, Qiancheng Zhu, Wenming Zhang
Summary: Polyaniline-manganese dioxide composites exhibit high conductivity, long discharge platform, and stable circulation, and the specific capacity is increased by providing additional H+ ions to participate in the reaction.
SCRIPTA MATERIALIA
(2024)
Article
Nanoscience & Nanotechnology
Xutao Huang, Yinping Chen, Jianjun Wang, Gang Lu, Wenxin Wang, Zan Yao, Sixin Zhao, Yujie Liu, Qian Li
Summary: This study aims to establish a novel approach to better understand and predict the behavior of materials with multi-scale lamellar microstructures. High-resolution reconstruction and collaborative characterization methods are used to accurately represent the microstructure. The mechanical properties of pearlite are investigated using crystal plasticity simulation and in-situ scanning electron microscopy tensile testing. The results validate the reliability of the novel strategy.
SCRIPTA MATERIALIA
(2024)
Article
Nanoscience & Nanotechnology
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
Darshan Bamney, Laurent Capolungo
Summary: This work investigates the formation of adjoining twin pairs (ATPs) at grain boundaries (GBs) in hexagonal close-packed (hcp) metals, focusing on the co-nucleation (CN) of pairs of deformation twins. A continuum defect mechanics model is proposed to study the energetic feasibility of CN of ATPs resulting from GB dislocation dissociation. The model reveals that CN is preferred over the nucleation of a single twin variant for low misorientation angle GBs. Further analysis considering GB character and twin system alignment suggests that CN events could be responsible for ATP formation even at low m' values.
SCRIPTA MATERIALIA
(2024)
Article
Nanoscience & Nanotechnology
Bing Han, Zhengqian Fu, Guoxiang Zhao, Xuefeng Chen, Genshui Wang, Fangfang Xu
Summary: This study investigates the behavior of electric-field induced antiferroelectric to ferroelectric (AFE-FE) phase transition and reveals the evolution of atomic displacement ordering as the cause for the transition behavior changing from sharp to diffuse. The novel semi-ordered configuration results from the competing interaction between long-range displacement modulation and compositional inhomogeneity, which leads to a diffuse AFE-FE transition while maintaining the switching field.
SCRIPTA MATERIALIA
(2024)
Article
Nanoscience & Nanotechnology
Akib Jabed, Golden Kumar
Summary: This study demonstrates that cryogenic rejuvenation promotes homogeneous-like flow and increases ductility in metallic glass samples. Conversely, annealing has the opposite effect, resulting in a smoother fracture surface.
SCRIPTA MATERIALIA
(2024)
Article
Nanoscience & Nanotechnology
Xin Ji, Yan Chong, Satoshi Emura, Koichi Tsuchiya
Summary: A heterogeneous microstructure in Ti-15Mo-3Al alloy with heterogeneous distributions of Mo element and omega(iso) precipitates has achieved a four-fold increase in tensile ductility without a loss of tensile strength, by blocking the propagation of dislocation channels and preventing the formation of micro-cracks.
SCRIPTA MATERIALIA
(2024)
Article
Nanoscience & Nanotechnology
Amit Samanta, Prasanna Balaprakash, Sylvie Aubry, Brian K. Lin
Summary: This study proposes a combined large-scale first principles approach with machine learning and materials informatics to quickly explore the chemistry-composition space of advanced high strength steels (AHSS). The distribution of aluminum and manganese atoms in iron is systematically explored using first principles calculations to investigate low stacking fault energy configurations. The use of an automated machine learning tool, DeepHyper, speeds up the computational process. The study provides insights into the distribution of aluminum and manganese atoms in systems containing stacking faults and their effects on the equilibrium distribution.
SCRIPTA MATERIALIA
(2024)
Article
Nanoscience & Nanotechnology
Guowei Zhou, Yuanzhe Hu, Zizheng Cao, Myoung Gyu Lee, Dayong Li
Summary: In this work, a physics-constrained neural network is used to predict grain-level responses in FCC material by incorporating crystal plasticity theory. The key feature, shear strain rate of slip system, is identified based on crystal plasticity and incorporated into the loss function as physical constitutive equations. The introduction of physics constraints accelerates the convergence of the neural network model and improves prediction accuracy, especially for small-scale datasets. Transfer learning is performed to capture complex in-plane deformation of crystals with any initial orientations, including cyclic loading and arbitrary non-monotonic loading.
SCRIPTA MATERIALIA
(2024)
Article
Nanoscience & Nanotechnology
Pengfei Yang, Qichang Li, Zhongying Wang, Yuxiao Gao, Wei Jin, Weiping Xiao, Lei Wang, Fusheng Liu, Zexing Wu
Summary: In this study, the HER performance of Ru-based catalysts is significantly improved through the dual-doping strategy. The obtained catalyst exhibits excellent performance in alkaline freshwater and alkaline seawater, and can be stably operated in a self-assembled overall water splitting electrolyzer.
SCRIPTA MATERIALIA
(2024)
Article
Nanoscience & Nanotechnology
Ilias Bikmukhametov, Garritt J. Tucker, Gregory B. Thompson
Summary: Depositing a Ni-1at. % P film can facilitate the formation of multiple quintuple twin junctions, resulting in a five-fold twin structure and a pentagonal pyramid surface topology. The ability to control material structures offers opportunities for creating novel surface topologies, which can be used as arrays of field emitters or textured surfaces.
SCRIPTA MATERIALIA
(2024)
Article
Nanoscience & Nanotechnology
Zening Yang, Weiwei Sun, Zhengyu Sun, Mutian Zhang, Jin Yu, Yubin Wen
Summary: Multicomponent oxides (MCOs) have wide applications and accurately predicting their thermal expansion remains challenging. This study introduces an innovative attention-based deep learning model, which achieves improved performance by using two self-attention modules and demonstrates adaptability and interpretability.
SCRIPTA MATERIALIA
(2024)
Article
Nanoscience & Nanotechnology
Ze Liu, Cai Chen, Yuanxun Zhou, Lanting Zhang, Hong Wang
Summary: This study attempts to address the gap in cooling rates between thin film deposition and bulk metallic glass (BMG) casting by correlating the glass-forming range (GFR) determined from combinatorial materials chips (CMCs) with the glass-forming ability (GFA) of BMG. The results show that the full-width at half maximum (FWHM) of the first sharp diffraction peak (FSDP) is a good indicator of BMG GFA, and strong positive correlations between FWHM and the critical casting diameter (Dmax) are observed in various BMG systems. Furthermore, the Pearson correlation coefficients suggest possible similarities in the GFA natures of certain BMG pairs.
SCRIPTA MATERIALIA
(2024)
Article
Nanoscience & Nanotechnology
Mike Schneider, Jean-Philippe Couzinie, Amin Shalabi, Farhad Ibrahimkhel, Alberto Ferrari, Fritz Koermann, Guillaume Laplanche
Summary: This work aims to predict the microstructure of recrystallized medium and high-entropy alloys, particularly the density and thickness of annealing twins. Through experiments and simulations, a database is provided for twin boundary engineering in alloy development. The results also support existing theories and empirical relationships.
SCRIPTA MATERIALIA
(2024)
