Article
Materials Science, Ceramics
Yogita Maithani, J. A. Khan, B. R. Mehta, J. P. Singh
Summary: This study focuses on the fabrication of zirconia thin films by e-beam deposition and optimizing their cubic phase through thermal annealing at different temperatures without using dopants or stabilizers. The annealing at 500 degrees C produces a stable cubic phase with a crystallite size of 10.7+/-0.8 nm, high optical transparency of around 80% in the visible range, improved crystallinity, hydrophilicity, and reduced nonradiative defects. The mechanical properties of the zirconia films also improve with increasing annealing temperature, with increased hardness and elastic modulus.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Multidisciplinary
Kaushik Dey, Surojit Bhunia, Himadri Sekhar Sasmal, C. Malla Reddy, Rahul Banerjee
Summary: This study investigates the mechanical behavior of different types of COF thin films by controlling the internal order and self-assembly of building blocks, revealing that defect density and the nature of supramolecular interactions play a significant role in determining the stress-strain behavior of the films.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Nanoscience & Nanotechnology
Ayako Ikeda, Kenta Goto, Toshio Osada, Ikumu Watanabe, Kyoko Kawagishi
Summary: A new approach has been proposed for the high-throughput experimental evaluation of the phase stability, mechanical properties, and oxidation properties of a Ni-based superalloy. The method involves using the Bridgman technique to introduce a gradation of nine elements and a wide range of microstructural features in a single sample. This approach allows for a large number of datasets to be obtained related to the composition and microstructure of the superalloys.
SCRIPTA MATERIALIA
(2021)
Article
Materials Science, Multidisciplinary
Changxing Cui, Feng Wang, Zhongwu Hu, Yanchao Li, Benqi Jiao, Jianrong Xue, Mingming Wu, Lian Zhou, Wen Zhang
Summary: In this study, the fracture toughness of bulk epsilon zirconium hydride was estimated using Vickers microhardness indentation, showing similar values to previous reports obtained from conventional experimental means, indicating the feasibility of this method.
Article
Nanoscience & Nanotechnology
Qian Wang, Jean-Sebastien Lecomte, Christophe Schuman, Laurent Peltier
Summary: The mechanical properties of the hydride diffusion layer were thoroughly investigated using the nano-indentation technique. The clear section microstructure of the hydride diffusion layer was revealed for the first time, showing complex interactions between the hydride plates near the interface with the titanium matrix. The hydride layer exhibited higher hardness and lower modulus due to its hard nature and easier crack nucleation, while the titanium matrix showed considerable anisotropic hardness.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Construction & Building Technology
Fukuan Dai, Ziwei Wang, Hankun Wang, Wenfu Zhang, Tuhua Zhong, Genlin Tian
Summary: This study investigates the structure and mechanical properties of Dendrocalamus sinicus to provide guidance for its exploitation. The results show that the vascular bundles are distributed with a quadratic function along the radial direction, and the fiber volume fraction and area of fiber sheath are high. The nanoindentation test reveals the excellent mechanical properties of Dendrocalamus sinicus, indicating its potential as a replacement for traditional building materials in the future.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Charles Miller, Christopher DellaCorte, Min Zou
Summary: The nanomechanical properties of hardened 60NiTi were studied using nanoindentation, revealing that the Ni3Ti phase has higher hardness and elastic modulus. The presence of Ni3Ti may indicate reduced amounts of Ni4Ti3, leading to lower overall hardness of the material.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Chemistry, Physical
Congcong Wu, Jun Peng, Weiwen Pu, Shengnan Lu, Chao Zhang, Nan Wu, Zhaoru Sun, Hongti Zhang, Hung-Ta Wang
Summary: The study found that alpha-Sb2O3 nanoflakes exhibit unique bending properties, with a low Young's modulus and remarkable maximum tensile strain, which are attributed to the high-symmetry vdW bonding structure. The vdW nanomechanics have fundamental and technological relevance to nanoelectronics.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2021)
Article
Engineering, Chemical
Md. Imran H. Khan, Nishane Patel, Md Mahiuddin, M. A. Karim
Summary: This research aims to investigate the micro-level mechanical properties of plant-based food materials (PBFM) during drying and establish relationships between the elastic modulus, hardness, and stiffness and the moisture content. The study found that the mechanical properties of PBFM remained steady in early stages of drying, but significantly increased in later stages, establishing essential relationships with moisture content during drying.
JOURNAL OF FOOD ENGINEERING
(2021)
Article
Energy & Fuels
Chenliang Hou, Bo Jiang, Ming Li, Yu Song, Guoxi Cheng
Summary: The internal mechanism of how maceral and temperature control the mechanical properties of in situ coal has not been established so far. This study aims to discover the control mechanism of macerals and temperature on the mechanical properties of in situ coal. By linking the macroscopic and microscopic mechanical properties, it was found that the hardness and elastic modulus of macerals adhere to a specific order, and varying temperatures do not transform this order. The content increase of liptinite, vitrinite, and inertinite affects the hardness and elastic modulus of the whole coal differently. Temperature alters the mechanical properties of in situ coal through macerals as an intermediary, and there is a watershed in the effect of temperature on coal mechanical properties.
Article
Materials Science, Multidisciplinary
Ed Darnbrough, Jack Aspinall, Mauro Pasta, David E. J. Armstrong
Summary: In this paper, in-situ nanoindentation is used to investigate the anisotropic mechanical properties of metallic lithium, which is the desired anode material for high energy density solid state batteries. It is found that the elastic modulus and creep properties of lithium show a significant range depending on sample preparation and testing method. The study also reveals the impact of strain-rate and temperature on battery cycle performance. The global equation for yield strength with strain-rate is established to explain the variations in property values reported in the literature. These findings provide important insights for optimizing the design of solid state batteries and reducing the required pressure.
MATERIALS & DESIGN
(2023)
Article
Materials Science, Multidisciplinary
Shawkat Imam Shakil, Leandro Gonzalez-Rovira, Leticia Cabrera-Correa, Juan de Dios Lopez-Castro, Miguel Castillo-Rodriguez, F. Javier Botana, Meysam Haghshenas
Summary: This paper presents a comprehensive investigation into the correlation between microstructural features and macroscopic properties of laser powder bed fused Scalmalloy(R). It shows that the strength of the alloy improves significantly in the heat-treated condition due to the precipitation of secondary phases; however, the grain size and texture remain relatively unchanged.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Engineering, Geological
Zhaoyang Ma, Ranjith Pathegama Gamage, Chengpeng Zhang
Summary: This study investigated the mechanical properties of alpha-quartz using molecular dynamics simulations of nanoindentation tests. The results showed that the reduced Young's modulus and hardness increase with indentation depth, while decrease with indenter tip size. The findings provide valuable insights into the precise measurement of rock mineral mechanical properties at micro- and nano-scales.
INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES
(2021)
Article
Chemistry, Physical
S. Baco, Q. A. Abbas, T. J. Hayward, N. A. Morley
Summary: This study investigated the mechanical properties of soft magnetostrictive FeCoCr films, showing that the addition of Cr atoms improved the yield strength while decreasing the hardness and Young's modulus of the films.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Ceramics
M. Yarahmadi, J. J. Roa, J. Zhang, L. Cabezas, L. Ortiz-Membrado, L. Llanes, G. Fargas
Summary: This study investigates the micromechanical properties of yttria-doped zirconia ceramics produced by Direct-Ink Writing (DIW) and Cold Isostatic Pressing (CIP). The results show that DIW samples have 20-25% lower hardness values compared to the corresponding CIP samples due to microstructural defects like porosity. However, at the local level, the hardness and elastic modulus achieved by nanoindentation are closer between printed and CIP samples.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2023)
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)