Article
Chemistry, Physical
Ryuichi Kato, Masami Naya, Naoki Kasahata, Ryosuke Senga, Chikara Sato, Masanori Koshino, Kazu Suenaga, Masataka Hasegawa
Summary: High-quality graphene demonstrates efficient heat dissipation by direct contact with ice, significantly suppressing sublimation behavior, especially for thinner ice. The lifespan of ice on graphene against electron beam irradiation extends by approximately 40% compared to ice without graphene, providing a new avenue for effective thermal management in cryo-TEM analysis.
Article
Engineering, Multidisciplinary
Justyna Zygmuntowicz, Paulina Wiecinska, Marcin Wachowski, Marta Kurek, Waldemar Kaszuwara
Summary: This research aimed to investigate phenomena occurring in a mixture of Al2O3-Cu-Mo powders during thermal treatment above 1000 degrees C. TG and DTA measurements were used to observe changes during the thermal treatment process. The oxidation and decomposition processes of the specimens were observed by conducting DTA/TG measurements in argon and synthetic air. The research compared the results of Al2O3-Cu-Mo samples with two-component systems: Al2O3-Cu and Al2O3-Mo. The study revealed that oxidation reactions and the formation of new phases occur in Al2O3-Cu-Mo samples at temperatures above 430 degrees C.
Article
Chemistry, Multidisciplinary
Rui Serra-Maia, Pawan Kumar, Andrew C. Meng, Alexandre C. Foucher, Yijin Kang, Khim Karki, Deep Jariwala, Eric A. Stach
Summary: Liquid-cell scanning/transmission electron microscopy (S/TEM) has been used to study nanostructure nucleation and growth, electrochemistry, and corrosion. By generating a gas bubble during electrochemical water splitting, the thickness of the liquid can be reduced to allow for atomic-scale analysis. This method enables multi-modal, nanoscale understanding of solid-state samples in liquid media.
Article
Materials Science, Multidisciplinary
Fei Long, Yu Luo, Nima N. Badr, Oksana Shiman, Matthew Topping, Suraj Y. Persaud, Zhongwen Yao, Laurent K. Beland, Mark R. Daymond
Summary: The crystal structure of the hydride induced by water quenching in Zr-2.5Nb pressure tube was identified using synchrotron x-ray diffraction and TEM nano-beam electron diffraction, showing a transition from gamma' phase to gamma and delta phases during room temperature aging, confirming its metastable nature. The amount of gamma' phase increased with quenching temperature, while the delta phase changed inversely. Additionally, in-situ heating experiments showed that the gamma' phase was present up to 278 degrees C, with transformation into delta hydride upon heating.
Article
Materials Science, Multidisciplinary
Ke Ran, Fanlin Zeng, Liudmila Fischer, Stefan Baumann, Wilhelm A. Meulenberg, Kerstin Neuhaus, Joachim Mayer
Summary: This study characterized the newly formed phase inside dual-phase oxygen transport membranes (DP-OTMs) using advanced transmission electron microscopy techniques. The results showed that the newly formed phase is primarily surrounded by the existing phase, reducing non-solute segregation at grain boundaries. The study also observed the crystal structure of interfaces between the two phases.
Article
Chemistry, Physical
Xavier A. Ojeda, Facundo J. Castro, Santiago A. Pighin, Horacio E. Troiani, M. Sergio Moreno, Guillermina Urretavizcaya
Summary: The study identified the optimal Nb(V) ethoxide content of 0.25 mol% for efficiently catalyzing the H-2 sorption kinetics in the Mg/MgH2 system. The material showed remarkable kinetic behavior with excellent reversibility, absorbing and desorbing 5.3 wt% of hydrogen within 3 minutes. The improvement in hydrogen desorption and absorption properties was attributed to the enhancement of kinetic processes on the material's surface due to the excellent spreading of the liquid additive at nanometric level.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Environmental Sciences
Weiming Song, Xiaoqing Chen, Yifeng Huang, Rui Jiang, Jianan Zhou
Summary: This study proposes a new method for obtaining gaseous fuels by pyrolyzing waste biomass and using waste heat. The release patterns of the gaseous products obtained from waste biomass were studied at different temperatures and pressures. Various models were used to calculate the kinetics parameters and the effects of temperature were investigated in a settling furnace. The findings confirmed the feasibility of generating gaseous fuels from waste heat by injecting biomass into the converter vaporization cooling flue.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Chemistry, Physical
Stefan Loeffler, Michael Stoeger-Pollach, Andreas Steiger-Thirsfeld, Walid Hetaba, Peter Schattschneider
Summary: EMCD is a versatile method for measuring magnetism in TEM, with a strong dependence on acceleration voltage. A detailed investigation on this dependence using theory, simulations, and experimental data enables scientists to optimize experimental parameters.
Article
Physics, Condensed Matter
Annett Thogersen, Ingvild J. T. Jensen, Branson D. Belle, Marit Stange, Vilde Mari Reinertsen, Torunn Kjeldstad, Oystein Prytz, Edouard Monakhov, Demie Kepaptsoglou
Summary: Plasmonic properties of aluminium nanowires in the UV and far UV region were investigated in this study. The study demonstrated that aluminium nanowires can serve as an excellent alternative to Ag or Au for enhancing optical activity. The size and spacing of the nanowires, as well as the embedding material, were found to significantly impact the type of surface plasmon energies that can be generated.
JOURNAL OF PHYSICS-CONDENSED MATTER
(2023)
Article
Thermodynamics
Niroj Kumar Mohalik, Edward Lester, Ian S. Lowndes
Summary: The TG method was used to determine the spontaneous heating susceptibility of coal samples from the Jharia coalfield in India, suggesting a heating rate of 5 degrees C min(-1) should be used. Analysis using chemo-metric tools revealed that self-heating and ignition temperature from TG experiments may indicate the susceptibility of coal to spontaneous heating.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2021)
Article
Materials Science, Multidisciplinary
Kittikhun Ruangchai, Ruangdaj Tongsri, John T. H. Pearce, Torranin Chairuangsri, Sankum Nusen, Hiroki Kurata, Mitsutaka Haruta, Tsutomu Kiyomura, Atsushi Yamaguchi, Amporn Wiengmoon
Summary: In this study, the phase composition and microstructure of high chromium cast irons with the addition of Mo or W were characterized. Different types of carbides, including M23C6, M6C, and M7C3, were observed in the as-cast condition and after annealing. The annealing treatment led to the formation of eutectic carbides, coarse and fine secondary carbides, and lamellar pearlite.
MATERIALS CHARACTERIZATION
(2023)
Article
Materials Science, Paper & Wood
Langui Xu, Yujian Zhang, Ziyong Wang, Shurui Guo, Yongxing Hao, Yuguo Gao, Min Xin, Yi Ran, Shuxun Li, Rui Ji, Hongmei Li, Huixia Jiang, Qingyan He, Ruyi Huang
Summary: This study investigates the pyrolysis performances and reaction kinetics of pine needles using thermogravimetric analysis, Fourier transform infrared spectroscopy, and pyrolysis-gas chromatography/mass spectrometry. It was found that pine needles showed higher pyrolysis efficiency at lower heating rates, while increased heating rates promoted the reaction. The activation energies of hemicellulose, cellulose, and lignin were calculated to be 156, 165, and 172 kJ/mol, respectively, using the King-Kai method. The main pyrolytic by-products identified were hydrocarbons, phenols, alcohols, ketones, and aldehydes. This study demonstrates the significant potential of pine needles as a suitable source for bioenergy.
Article
Nanoscience & Nanotechnology
C. -J. Liu, H. -Y. Lo, A. -Y. Hou, J. -Y. Chen, C. -H. Wang, C. -W. Huang, W. -W. Wu
Summary: One-dimensional metal oxide nanostructured materials have attracted attention for their properties and functionalities. This study investigated the resistive switching mechanism in a single Ta2O5 nanotube, revealing its dynamic behavior in memristive devices. The relationship between crystallinity and electrical properties was also explored.
MATERIALS TODAY NANO
(2022)
Article
Physics, Fluids & Plasmas
Mykola Ialovega, Elodie Bernard, Marie-France Barthe, Regis Bisson, Andrea Campos, Martiane Cabie, Thomas Neisius, Ryuichi Sakamoto, Arkadi Kreter, Christian Grisolia, Thierry Angot, Celine Martin
Summary: The evolution of surface and near-surface morphology of helium-irradiated tungsten during thermal cycling was studied using electron microscopy and positron annihilation spectroscopy. The results showed that the shape and density of holes and bubbles changed with thermal cycling, and the surface became smoother. Electron energy loss spectroscopy measurements and positron annihilation spectroscopy were used to investigate the properties and evolution of defects in the helium-irradiated tungsten.
Article
Polymer Science
Changsheng Chen, Xuyun Guo, Guangming Zhao, Yunduo Yao, Ye Zhu
Summary: This study reports the beam effects on the structure and chemical bonding of PE, PCL, and P3HT spherulite thin films using quantitative electron diffraction and spectroscopy. The results reveal that electron beam irradiation leads to amorphization and mass loss, which can be effectively suppressed by cryo-protection. Different polymers exhibit different processes and mechanisms in response to beam effects.
Article
Chemistry, Physical
D. Stender, R. Frison, K. Conder, J. L. M. Rupp, B. Scherrer, J. M. Martynczuk, L. J. Gauckler, C. W. Schneider, T. Lippert, A. Wokaun
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2015)
Article
Materials Science, Multidisciplinary
Henning Galinski, Thomas Ryll, Philipp Reibisch, Lukas Schlagenhauf, Iwan Schenker, Ludwig J. Gauckler
Article
Chemistry, Multidisciplinary
Barbara Scherrer, Meike V. F. Schlupp, Dieter Stender, Julia Martynczuk, Jan G. Grolig, Huan Ma, Peter Kocher, Thomas Lippert, Michel Prestat, Ludwig J. Gauckler
ADVANCED FUNCTIONAL MATERIALS
(2013)
Article
Chemistry, Physical
P. N. Sturzenegger, U. T. Gonzenbach, S. Koltzenburg, J. Martynczuk, L. J. Gauckler
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2014)
Article
Physics, Mathematical
Ludwig Gauckler, Ernst Hairer, Christian Lubich
COMMUNICATIONS IN MATHEMATICAL PHYSICS
(2013)
Article
Astronomy & Astrophysics
Henning Galinski, Thomas Ryll, Lukas Schlagenhauf, Iwan Schenker, Ralph Spolenak, Ludwig J. Gauckler
COMPTES RENDUS PHYSIQUE
(2013)
Article
Electrochemistry
R. Toelke, L. J. Gauckler, U. Kunz, A. Krauss, M. Prestat
Article
Electrochemistry
M. V. F. Schlupp, A. Kurlov, J. Hwang, Z. Yang, M. Doebeli, J. Martynczuk, M. Prestat, J. -W. Son, L. J. Gauckler
Article
Chemistry, Physical
Barbara Scherrer, Anna Evans, Alejandro J. Santis-Alvarez, Bo Jiang, Julia Martynczuk, Henning Galinski, Majid Nabavi, Michel Prestat, Rene Toelke, Anja Bieberle-Huetter, Dimos Poulikakos, Paul Muralt, Philippe Niedermann, Alex Dommann, Thomas Maeder, Peter Heeb, Valentin Straessle, Claude Muller, Ludwig J. Gauckler
JOURNAL OF POWER SOURCES
(2014)
Article
Chemistry, Multidisciplinary
Sasa Zeljkovic, Toni Ivas, Sebastien Vaucher, Dijana Jelic, Ludwig J. Gauckler
JOURNAL OF THE SERBIAN CHEMICAL SOCIETY
(2014)
Article
Materials Science, Multidisciplinary
A. Botea-Petcu, S. Tanasescu, V. Varazashvili, N. Lejava, T. Machaladze, M. Khundadze, F. Maxim, F. Teodorescu, J. Martynczuk, Z. Yang, L. J. Gauclder
MATERIALS RESEARCH BULLETIN
(2014)
Article
Chemistry, Physical
R. Frison, S. Heiroth, J. L. M. Rupp, K. Conder, E. J. Barthazy, E. Mueller, M. Horisberger, M. Doebeli, L. J. Gauckler
SOLID STATE IONICS
(2013)
Article
Electrochemistry
Sasa Zeljkovic, Toni Ivas, Anna Infortuna, Ludwig J. Gauckler
JOURNAL OF NEW MATERIALS FOR ELECTROCHEMICAL SYSTEMS
(2014)
Article
Physics, Applied
Henning Galinski, Thomas Ryll, Yang Lin, Barbara Scherrer, Anna Evans, Ludwig J. Gauckler, Max Doebeli
PHYSICAL REVIEW APPLIED
(2014)
Article
Materials Science, Ceramics
F. Knies, K. Schrantz, C. Aneziris, L. Gauckler, T. Graule
JOURNAL OF CERAMIC SCIENCE AND TECHNOLOGY
(2016)
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)
