Article
Nanoscience & Nanotechnology
Jonathan Kong, Michel J. R. Hache, Jason Tam, Jonathan L. McCrea, Jane Howe, Uwe Erb
Summary: In this study, the Hall-Petch to inverse Hall-Petch transition of electrodeposited nanocrystalline Ni-32at%Co alloy was investigated. The transition was found to occur in the mid-stage of abnormal grain growth, with grain boundary relaxation governing the inverse Hall-Petch region. Late-stage abnormal grain growth and further normal grain growth led to a reduction in hardness in the Hall-Petch region. The segregation of sulfur impurities, crystallographic orientation, and annealed twin development did not significantly contribute to the observed change in hardness.
SCRIPTA MATERIALIA
(2022)
Article
Materials Science, Multidisciplinary
J. M. Monti, E. M. Hopkins, K. Hattar, F. Abdeljawad, B. L. Boyce, R. Dingreville
Summary: This study investigates the stabilization of nanocrystalline alloys through alloying, analyzing the competing mechanisms and external influences. A multiphase field model is used to simulate and predict the behavior, which is validated with experimental results on platinum-gold nanocrystalline alloys. The concept of dynamically stable, graded, nanostructured materials is discussed as an alternative to conventional plastic deformation methods.
Article
Materials Science, Multidisciplinary
Glenn H. Balbus, Johann Kappacher, David J. Sprouster, Fulin Wang, Jungho Shin, Yolita M. Eggeler, Timothy J. Rupert, Jason R. Trelewicz, Daniel Kiener, Verena Maier-Kiener, Daniel S. Gianola
Summary: Intentional design of interface disorder, co-segregation of Ce and Ni, and formation of amorphous intergranular films contribute to exceptional thermal stability and elevated temperature strength in a ternary nanocrystalline Al-Ni-Ce alloy. This highlights the efficacy of promoting disorder in alloy design and discovery for outstanding mechanical performance at high homologous temperatures.
Article
Physics, Applied
Vidisha Singhal, Jie Zhu, Jiawei Song, Haiyan Wang, Peter Bermel
Summary: This study proposes and optimizes a tri-phase photonic crystal emitter design, which introduces BaZrO3 material into the CeO2 layers of an existing photonic crystal emitter, improving thermal stability. Through simulation and optimization, it is found that the tri-phase variations have minimal impact on the spectral efficiency, with the highest efficiency being only 0.02% lower and the lowest efficiency being only 0.28% lower than the original design. Therefore, tri-phase photonic crystal emitters can be used in practical applications to enhance thermal stability without compromising on spectral efficiency.
APPLIED PHYSICS LETTERS
(2023)
Article
Materials Science, Multidisciplinary
Hongbin Zhang, Jiawen Sun, Kang Chen, Haiping Zhou, Jianbo Jia, Zequn Wang, Yue Lu, Kuidong Gao, Wenhao Ma
Summary: The microstructure evolution and thermal stability of nanocrystalline AZ31-2.5 wt%VP magnesium matrix composites were investigated. The findings revealed that the composite maintained a nanocrystalline scale even after annealing at high temperatures, indicating excellent thermal stability. The uniformly distributed V particles in the magnesium matrix effectively inhibited grain growth and no new phases were formed. The hardness of the composite remained high even after annealing treatment.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Nanoscience & Nanotechnology
Longfei Zeng, Luming Zeng, Shu Miao, Xuehui Zhang, Weijiang Liu
Summary: This study proposes an effective strategy to achieve high strength, high conductivity, and excellent thermal stability simultaneously in Cu-based materials. By constructing an immiscible tri-phase Cu/Ag/Cu/Nb nanolamellar composite structure using accumulative roll bonding technique, the researchers successfully overcome the trade-off dilemma between these desirable properties. The resulting nanostructure exhibits exceptional property combination, including high tensile strength, excellent electrical conductivity, and mechanical and thermal stability.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Materials Science, Multidisciplinary
Pham Tran Hung, Megumi Kawasaki, Jae-Kyung Han, Janos L. Labar, Jeno Gubicza
Summary: Through experiments and heat treatment, it was found that there were two exothermic peaks in the nanocrystalline CoCrFeNi alloy during annealing, corresponding to the decrease of lattice defects and the increase of grain size. The hardness of the alloy remained unchanged during recovery, but decreased during recrystallization.
MATERIALS CHARACTERIZATION
(2021)
Article
Chemistry, Multidisciplinary
Shuaiqi Li, Jiawei Zhang, Shixue Guan, Ruiang Guo, Duanwei He
Summary: By using the RPPT technique, we have synthesized compact bulk nanocrystalline InAs and confirmed its potential inverse Hall-Petch relation through experimental tests.
Article
Materials Science, Multidisciplinary
Kai Liu, ShangBin Gao, ZhongHua Wang, Xiazi Xiao, Chao Jiang
Summary: This work proposes a mechanistic model to characterize the evolution of hardness in ion-irradiated nanocrystalline metals as a function of indentation depth. The model considers the contribution of grain interiors and grain boundaries to hardening, and validates the rationality and accuracy of the proposed model through comparison with experimental data.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Chemistry, Physical
Y. X. Wan, H. S. Li, C. J. Chen, F. L. Kong, B. L. Shen, A. Churyumov, E. Shalaan, A. A. Al-Ghmadi, W. J. Botta, A. Inoue
Summary: The study investigated the compositional influence on the formation of clustered glassy structure in Zr-based metallic glasses. Results showed that suitable contents of Co and Ag elements play a dominant role in the formation of the clustered glass. Glasses with clustered structure exhibit higher Vickers hardness and thermal stability, providing useful criteria for the synthesis of elevated-temperature strength metallic glasses in the future.
Article
Materials Science, Multidisciplinary
Tongjun Niu, Yifan Zhang, Jaehun Cho, Jin Li, Haiyan Wang, Xinghang Zhang
Summary: Nanostructured metallic multilayers with immiscible triphase Cu-Ag/Fe exhibit enhanced thermal stability compared to Cu/Fe multilayers, resisting microstructure instability and grain coarsening at high temperatures. This study offers a fresh perspective on designing thermally stable nanostructured multilayers for high temperature applications.
Article
Chemistry, Physical
Jieyan Yuan, Xin Zhou, Shujuan Dong, Jianing Jiang, Longhui Deng, Wenjia Song, Donald B. Dingwell, Xueqiang Cao
Summary: The research on the effects of novel dopants Ta2O5 and Y2O3 on ceramic systems has led to the discovery of new compounds Hf6Ta2O17 and stabilized HfO2 with 18 mol% YO1.5 (YSH). It has been found that cubic YSH ceramics exhibit enhanced phase stability and mechanical properties at high temperatures.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
Xuyang Zhou, Reza Darvishi Kamachali, Brad L. Boyce, Blythe G. Clark, Dierk Raabe, Gregory B. Thompson
Summary: Spinodal decomposition has been a key phenomenon in considering the formation of secondary phases in alloys for over half a century, offering an alternative mechanism to nucleation and growth without an energy barrier. In nanocrystalline alloys, the influence of structurally heterogeneous grain boundaries on chemical decomposition behavior cannot be neglected, as they can profoundly alter the spinodal decomposition. Multiple interfacial states, from competitive grain boundary segregation to barrier-free low-dimensional interfacial decomposition, can occur with a dependency upon the grain boundary character.
Article
Chemistry, Physical
Sara I. Ahmad, Hicham Hamoudi, Atef Zekri, Khaled M. Youssef
Summary: The effect of adding small amounts of strontium and graphene nanoplatelets to nanocrystalline Al-Li alloy was investigated. The results show that the spontaneous reaction between strontium and graphene nanoplatelets at high temperatures leads to a decrease in thermal stability.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Megumi Kawasaki, Jae-Kyung Han, Abel Szabo, Zoltan Hegedus, Jeno Gubicza, Pham Tran Hung, Janos L. Labar
Summary: This study investigated the thermal stability of a nanocrystalline CoCrFeNi multi-principal element alloy under different degrees of severe plastic deformation. It was found that the samples exhibited two exothermic peaks, which were related to the annihilation of dislocations and vacancies, as well as recrystallization.
Article
Materials Science, Multidisciplinary
Tianyi Sun, Tongjun Niu, Zhongxia Shang, Wei-Ying Chen, Meimei Li, Haiyan Wang, Xinghang Zhang
Summary: We compared the irradiation response of nanolaminate (NL) and coarse-grained (CG) FeCrAl alloys by performing He ion irradiation followed by in situ Kr ion irradiation. The NL alloy showed reduced swelling and decreased density of dislocation loops compared to the CG alloy. The distribution of He bubbles seemed to depend on misorientation angles of high angle grain boundaries. A new type of nanoprecipitates was identified in the irradiated CG FeCrAl without noticeable chemical segregation, while chemical segregation occurred along the laminate boundaries in the irradiated NL FeCrAl alloy.
Article
Materials Science, Multidisciplinary
Tongjun Niu, Tianyi Sun, Zhongxia Shang, Yifan Zhang, Zihao He, Wei-Ying Chen, Meimei Li, Haiyan Wang, Xinghang Zhang
Summary: A study found that helium bubble swelling can be effectively controlled by pre-injecting helium in Cu50Ag50, Cu45Ag45Fe10, and Cu33Ag33Fe34 nanocomposites, with Cu33Ag33Fe34 exhibiting smaller bubble swelling compared to Cu50Ag50. This suggests the vital role of Cu-Ag-Fe triphase triple junctions and phase boundaries in managing helium. The study provides a new perspective for improving the radiation tolerance of nanocrystalline alloys through microstructure design.
JOURNAL OF NUCLEAR MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
M. Nasim, Sreekar Rayaprolu, T. Niu, C. Fan, Z. Shang, Jin Li, H. Wang, A. El-Azab, Y. Xue, X. Zhang
Summary: Void formation is an important aspect in the irradiation response of metals. In situ transmission electron microscopy was used to observe the evolution of voids during irradiation. By combining a convolutional neural network with greedy matching, a data-driven approach was utilized to detect and track nanovoid evolutions and migrations, revealing surprising phenomena of void size fluctuation and shrinkage in irradiated Cu with pre-existing nanovoids. Phase-field simulations provided insights into the fundamental mechanism behind the observed void size fluctuation phenomenon.
JOURNAL OF NUCLEAR MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Zihao He, Zhimin Qi, Bo Yang, Ping Lu, Jianan Shen, Neil R. Dilley, Xinghang Zhang, Haiyan Wang
Summary: By electrochemically intercalating foreign ions (e.g., Li ions) into VO2 films, the transition temperature (Tc) of VO2 can be effectively tuned from 326.7 to 340.8 K, providing a new approach for room-temperature device applications.
Article
Chemistry, Multidisciplinary
Yizhi Zhang, Jiawei Song, Ping Lu, Julia Deitz, Di Zhang, Hongyi Dou, Jianan Shen, Zedong Hu, Xinghang Zhang, Haiyan Wang
Summary: Vertically aligned nanocomposite films have been fabricated using a pulsed laser deposition method, with embedded Co nanopillars in a ZrO2 matrix. By tuning the Co nanopillar density, the optical and magnetic properties of the films can be effectively controlled. These hybrid metamaterials show great potential for future integrated optical and magnetic device designs.
ADVANCED MATERIALS INTERFACES
(2023)
Article
Nanoscience & Nanotechnology
Hongyi Dou, Markus Hellenbrand, Ming Xiao, Zedong Hu, Sundar Kunwar, Aiping Chen, Judith L. MacManus-Driscoll, Quanxi Jia, Haiyan Wang
Summary: Defect engineering in valence change memories has been extensively studied to tune the concentration and transport of oxygen vacancies. However, most of the focus has been on individual extended defects. This work investigates the impact of engineering large numbers of grain boundaries on resistive switching mechanisms and performances. Three different grain morphologies are realized in CeO2 thin films, and the devices exhibit vastly different resistive switching behaviors. The research provides design guidelines for grain boundary engineering of oxide-based resistive switching materials.
ADVANCED ELECTRONIC MATERIALS
(2023)
Article
Crystallography
Tongjun Niu, Ke Xu, Chao Shen, Tianyi Sun, Justin Oberst, Carol A. Handwerker, Ganesh Subbarayan, Haiyan Wang, Xinghang Zhang
Summary: Cu-to-Cu thermal compression bonding (TCB) is a promising solution for packaging in 3D integrated circuits, but the traditional methods require high temperature and high pressure, which affect device performance and reliability. Therefore, investigating processing parameters for low temperature and low pressure bonding is crucial.
Article
Nanoscience & Nanotechnology
Heramba Venkata Sai Rama Murthy Koppisetti, Harsha Rao, Hari Vignesh Ramasamy, Harish Reddy Inta, Sayan Das, Soohwan Kim, Yizhi Zhang, Haiyan Wang, Venkataramanan Mahalingam, Vilas Pol
Summary: The synthesis and characterization of a coexistent P3/O3 biphasic cathode material with LiF integration is reported. The presence of Li and F was confirmed by spectroscopy techniques, and the biphasic cathode demonstrated improved capacity retention and rate capability compared to the pristine cathode.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Materials Science, Multidisciplinary
Xinchang Zhang, Liang Wang, Frank Liou, Yang Ren, Cheng Sun
Summary: Functionally graded materials (FGMs) provide a unique solution to combine distinct properties within a single component to enhance its overall performance. This study investigates the microstructure and residual stress of additively manufactured 316L stainless steel/Inconel 625 FGMs and the effects of isothermal annealing. The results show that thermal annealing at 500 degrees C for 3 hours minimally affects the microstructure and chemistry of the graded materials, but effectively relieves the residual stress and leads to a uniform distribution of residual stress.
Article
Chemistry, Multidisciplinary
Hongyi Dou, Zehao Lin, Zedong Hu, Benson Kunhung Tsai, Dongqi Zheng, Jiawei Song, Juanjuan Lu, Xinghang Zhang, Quanxi Jia, Judith L. MacManus-Driscoll, Peide D. Ye, Haiyan Wang
Summary: This study presents a simple and effective approach using self-assembled uniform Au nanoelectrodes to control filament formation in HfO2 resistive switching devices, significantly enhancing device stability and reducing threshold voltage. The potential of nanostructure design for precise control of filamentary-type resistive switching devices is highlighted.
Article
Materials Science, Multidisciplinary
Zherui Han, Changkyun Lee, Jiawei Song, Haiyan Wang, Peter Bermel, Xiulin Ruan
Summary: In this study, a unified temperature-dependent treatment of both electrons and phonons is presented using first principles, allowing the prediction of a full-spectrum dielectric function. The calculated refractive index of CeO2 matches well with measured data from literature and experiments conducted in this study.
Article
Chemistry, Multidisciplinary
Amin Zareei, Venkat Kasi, Allison Thornton, Ulisses Heredia Rivera, Manoj Sawale, Murali Kannan Maruthamuthu, Zihao He, Juliane Nguyen, Haiyan Wang, Dharmendra K. Mishra, Rahim Rahimi
Summary: Surgical meshes made of bioinert polymers such as polypropylene are commonly used in hernia repair to prevent organ protrusion, but post-operative mesh infection is a significant complication. Antibiotic coatings have been used to mitigate infection-related complications, but antibiotic resistance is a concern. Bioactive glass-ceramics with silver nanoparticles (AgNPs) have shown antibacterial properties, but their synthesis and coating methods are impractical for temperature-sensitive polymeric substrates. A new approach using cold atmospheric plasma (CAP) and laser surface treatment (LST) was explored to deposit functional glass-ceramic compounds onto polypropylene mesh surfaces. The developed coating demonstrated high biocompatibility and persistent antibacterial properties against both Gram-positive and Gram-negative bacteria, offering new possibilities for reducing infection risk in implants.
Article
Chemistry, Multidisciplinary
Qi Wang, Zhongxia Shang, Haiyan Wang, Alexander Wei
Summary: Colloidal Ag particles decorated with Fe3O4 islands can be activated as inverse catalysts for C(sp(2))-H heteroarylation either electrochemically or photochemically. The silver-iron oxide (SIO) particles are reduced into redox-active forms by cathodic charging at mild potentials or short-term light exposure, and can be reused multiple times by magnetic cycling without further activation. The reduction peak shift is attributed to the overpotential produced by surface Fe3O4, which separates residual Ag ions or clusters from bulk silver. The catalytic efficiency of SIO is maintained even with acid degradation, and can be counteracted by simple addition of water to the reaction medium.
Article
Nanoscience & Nanotechnology
Yu Wang, Boan Zhong, Jiamiao Ni, Jian Song, Yong Huang, Songsong Yao, Yue Liu, Tongxiang Fan
Summary: The demand for Cu with ultra-high conductivity is increasing, but traditional approaches have limited effectiveness. In this study, a nitrogen-doped graphene/Cu foil was synthesized, leading to a remarkable 14% improvement in electrical conductivity compared to annealed Cu. Dual doping of copper-electrons and nitrogen significantly increased carrier concentration, enhancing surface charge potential differences.
SCRIPTA MATERIALIA
(2024)
Article
Chemistry, Multidisciplinary
James P. Barnard, Jianan Shen, Yizhi Zhang, Juanjuan Lu, Jiawei Song, Aleem Siddiqui, Raktim Sarma, Haiyan Wang
Summary: In ferroelectric and multiferroic-based devices, growing thicker films for improved properties can be challenging. This study introduces a novel method to maintain strained growth beyond the typical thin film regime, enabling the growth of specific phases and preserving their desirable properties.
NANOSCALE ADVANCES
(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)
