Article
Materials Science, Multidisciplinary
Tong Gao, Yihan Bian, Xiangfa Liu
Summary: In this study, an (alpha-Al2O3 + ZrB2)/Al composite was prepared by promoting reactions among Al, ZrO2, and B2O3 powders. The nano-particles, with alpha-Al2O3 particles around 50 nm and ZrB2 particles around 10 nm in size, were mainly distributed along grain matrix boundaries, forming particle networks. The composite exhibited well-matched tensile strength and elongation, with the particle networks playing a positive role in piling up of dislocations during the tensile process.
Article
Chemistry, Physical
Wei Chen, Guijuan Gao, Xiangpeng Meng, Xiaojun Zhao, Yanbin Jiang, Meng Wang, Zhou Li, Lairong Xiao
Summary: A dual-phase reinforced Cu-0.75 wt% Al2O3-0.75 wt% TiB2 composite ingot was prepared by liquid phase in-situ reaction casting method and processed by hot rolling and cold rolling. The microstructure and property evolution of the composite during processing were investigated, and the strengthening mechanism was determined. Liquid phase in-situ reaction casting combined with large-deformation rolling is a promising process for the preparation of dual-phase reinforced dispersion strengthened copper matrix composite.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Hossein Ziaei, Farhad Saba, Qibing Liu, Genlian Fan, Zhanqiu Tan, Dingbang Xiong, Xiaohui Zhang, Baishan Liu, Zhiqiang Li
Summary: To solve the ductility-strength dilemma, the junction coincidence of intragranular reinforcement dispersion and in-situ reaction was used to increase the content of nano dispersoids in metal matrix composite for enhanced dispersion strengthening effect. The in-situ reaction between ex-situ CNTs, in-situ Al2O3, and the Al matrix was regulated to form a higher volume fraction of Al4O4C and Al4C3 nano dispersoids in Al grain interiors. The proliferation strategy of intragranular nano dispersoids greatly enhanced the dispersion strengthening and work hardening capability in ultrafine Al grains and resulted in a better combination of strength, Young's modulus, and ductility.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Review
Construction & Building Technology
S. Divya, S. Praveenkumar, Bassam A. Tayeh
Summary: Nano carbon, specifically graphene, has superior properties compared to carbon nano tubes and can significantly enhance the performance of cement composites. Studies have shown that adding graphene to cement matrix blended with supplementary materials such as fly ash, silica fume, and rice husk ash can improve the mechanical and durability properties of the cement composite. The use of graphene as a nano-filler also enhances the durability of the cement composites in terms of water permeability, chloride penetration, and carbonation effects.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
Article
Nanoscience & Nanotechnology
Ivan A. Ditenberg, Ivan Smirnov, Konstantin Grinyaev, Alexander N. Tyumentsev, Vyacheslav M. Chernov, Mikhail M. Potapenko
Summary: A comparative study was conducted on the effectiveness of carbide and oxide types of strengthening of V-Cr-Zr alloy. It was found that chemical-heat treatment can improve the thermal stability of the alloy, and an increase in fine particles and oxygen in the solid solution helps to retain high defect structural states.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Nanoscience & Nanotechnology
Taiqian Mo, Huaqiang Xiao, Bo Lin, Wei Li, Pengju Wang, Kai Ma
Summary: This study systematically investigates the mechanical behavior of tri-metallic Al/Al/Steel composites, focusing on the effect of strengthening mechanisms introduced by interlaminar and internal microstructures. The results show that the tri-metallic composites exhibit excellent interface bonding and inhibited intermetallic compound formation. The mechanical properties of the tri-metallic composites are significantly improved compared to bi-metallic Al/Steel composites due to the precipitation strengthening behavior of the high-performance 7075Al. Various annealing treatments are conducted to further optimize the strength and ductility of the tri-metallic composites by inducing strengthening mechanisms near the interface.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Chemistry, Multidisciplinary
Huanran Lin, Xiuhua Guo, Kexing Song, Jiang Feng, Shaolin Li, Xiangfeng Zhang
Summary: A novel hybrid SiCw/Cu-Al2O3 composite was successfully prepared in this study, showing excellent performance in improving mechanical properties and arc erosion resistance. The composite demonstrated good strength and stability in comparison with Cu-Al2O3 composite.
NANOTECHNOLOGY REVIEWS
(2021)
Article
Chemistry, Physical
Ruipeng Mao, Zhishuai Fan, Daoping Xiang
Summary: A simple and scalable methodology has been developed to fabricate high-performing tungsten alloys using a flaky binder phase and ceramic nano-particles. The alloy showed improved mechanical properties and refined tungsten grain, resulting in enhanced overall mechanical performance.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Engineering, Manufacturing
Bo Zhang, Shaohua Wu, Chuncheng Li, Yaonan Xiao, Jiajian Liu
Summary: A unique selective exfoliation method was developed to prepare micro/nano-PBO composite paper, which greatly improved its mechanical properties while preserving its ultrahigh heat resistance. The structurally optimized composite paper exhibited significantly enhanced mechanical strength, modulus, and electrical breakdown strength, making it a promising electrical insulating material for extreme environments.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2022)
Article
Construction & Building Technology
Dong-Hee Son, Dongsun Hwangbo, Heongwon Suh, Baek-Il Bae, Sungchul Bae, Chang-Sik Choi
Summary: The purpose of this study was to develop concrete with improved mechanical performance by using a combination of various nanomaterials (f-CNTs, NS, GO). The researchers proposed a method for mixing concentrated aqueous solution by applying a dispersion method based on the functional group ratio of the nanomaterials. The mechanical performance of the concrete was evaluated through uniaxial compression and splitting tensile tests, and it was found that the incorporation of nanomaterials increased splitting tensile strength and elastic modulus.
CASE STUDIES IN CONSTRUCTION MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Duraibabu Dhanapal, S. Ananda Kumar, J. Ranjitha
Summary: In this study, different weight percentages of amine-functionalized nano-alumina (F-Al) were added into diglycidyl ethers of bisphenol-A (DGEBA) epoxy resin and areca fiber (AF) composite. The F-Al acted as an adhesion promoter and improved the thermal, mechanical, and thermo-mechanical properties of DGEBA/AF nano-composites.
MATERIALS TODAY COMMUNICATIONS
(2022)
Article
Polymer Science
Xiaona Ru, Minghui Chu, Jiazhen Jiang, Tong Yin, Jiamin Li, Shijun Gao
Summary: This study prepared Nano-Ag-TiO2/PEEK composites with different mass fractions and found that the composite with 3 wt% Nano-Ag-TiO2 exhibited better mechanical properties and antimicrobial ability.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Nanoscience & Nanotechnology
Tianxing Lu, Cunguang Chen, Pei Li, Chenzeng Zhang, Weihao Han, Yang Zhou, Challapalli Suryanarayana, Zhimeng Guo
Summary: A novel dispersion-strengthened copper-tungsten alloy was prepared by mechanical alloying, showing improved mechanical properties, electrical conductivity, and thermal stability. The cold-rolled Cu-5 vol% W alloy retains high tensile strength and reasonable ductility even after annealing at 800 degrees C.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Materials Science, Multidisciplinary
Tong Gao, Lingyu Liu, Kai Zhao, Shushuai Liu, Mengxia Han, Guiliang Liu, Xiangfa Liu
Summary: In this study, a novel aluminum-based composite AFO, consisting of γ-Al2O3 particles and Al13Fe4 particles, was synthesized through a chemical reaction. After hot extrusion, the composite exhibited a network of γ-Al2O3 particles and uniformly dispersed Al13Fe4 particles, showing attractive high-temperature strength and heat stability.
MATERIALS & DESIGN
(2022)
Article
Engineering, Multidisciplinary
Jinyang Luo, Chao Hou, Fawei Tang, Tielong Han, Yurong Li, Junhua Luan, Zengbao Jiao, Xiaoyan Song, Zuoren Nie
Summary: This paper successfully fabricated a bimetallic nanocrystalline composite by replacing the refractory phase with a multi-principal refractory high-entropy phase. The interfacial configurations and compositional inter-diffusion between immiscible metals were investigated, and the mechanical properties and high-temperature performance of the composite were evaluated. The results showed improved properties compared to the traditional counterpart, suggesting promising potential for designing advanced immiscible metallic composites.
COMPOSITES PART B-ENGINEERING
(2022)
Article
Materials Science, Multidisciplinary
Gerda Rogl, Sanyukta Ghosh, Lei Wang, Jiri Bursik, Andriy Grytsiv, Michael Kerber, Ernst Bauer, Ramesh Chandra Mallik, Xing-Qiu Chen, Michael Zehetbauer, Peter Rogl
Article
Thermodynamics
Pavel Broz, Frantisek Zelenka, Jan Vrestal, Adela Zemanova, Ales Kroupa, Jiri Bursik, Milan Svoboda, Lucie Simonikova, Tomas Pokorny
CALPHAD-COMPUTER COUPLING OF PHASE DIAGRAMS AND THERMOCHEMISTRY
(2020)
Article
Physics, Applied
Sahil Tippireddy, Sanyukta Ghosh, Rajan Biswas, Titas Dasgupta, Gerda Rogl, Peter Rogl, Ernst Bauer, Ramesh Chandra Mallik
JOURNAL OF APPLIED PHYSICS
(2020)
Article
Materials Science, Multidisciplinary
Yvonna Jiraskova, Jiri Bursik, Jakub Ederer, Pavel Janos, Jan Jurica, Jiri Lunacek, Ondrej Zivotsky
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2020)
Article
Chemistry, Physical
O. Shved, L. P. Salamakha, S. Mudry, O. Sologub, P. F. Rogl, E. Bauer
JOURNAL OF ALLOYS AND COMPOUNDS
(2020)
Article
Thermodynamics
Vit Vykoukal, Frantisek Zelenka, Jiri Bursik, Tomas Kana, Ales Kroupa, Jiri Pinkas
CALPHAD-COMPUTER COUPLING OF PHASE DIAGRAMS AND THERMOCHEMISTRY
(2020)
Article
Chemistry, Inorganic & Nuclear
Gerda Rogl, Viktor Soprunyuk, Wilfried Schranz, Michael J. Zehetbauer, Jiri Bursik, Herbert Mueller, Ernst Bauer, Peter F. Rogl
ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE
(2020)
Article
Chemistry, Physical
Xinlin Yan, Pavel Broz, Jan Vrestal, Jiri Vlach, Jiri Bursik, Martina Mazalova, Jana Pavlu, Bedrich Smetana, Gerda Rogl, Markus Eiberger, Andriy Grytsiv, Herwig Michor, Herbert Mueller, Gerald Giester, Peter Rogl
Summary: The constitution of the two phase diagrams Nb-Mn and Ta-Mn has been determined using various methods, revealing the characteristics of binary compounds, congruent melting, and eutectic reactions. The detailed distribution of atom sites in the Laves phases has been established.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Ondrej Zivotsky, Dmitry Markov, Kamila Hrabovska, Jiri Bursik, Yvonna Jiraskova
Summary: Three Fe-based ribbon-type samples prepared by a conventional planar flow casting process are studied to investigate the differences in magnetic behaviors between amorphous and partially crystallized surfaces. The study reveals that the magnetic properties of amorphous samples vary with the size of the selected surface area and the types, widths, and movements of magnetic domains, while the crystallized surfaces exhibit more homogeneous magnetic properties with typical one-jump magnetization reversal.
Article
Nanoscience & Nanotechnology
Ondrej Zivotsky, Jiri Lunacek, Yvonna Jiraskova, Jiri Bursik, Jakub Ederer, Pavel Janos, Kristina Cabanova
Summary: The microstructural and physical properties of magnetically separable CeO2(5 wt.%)/Fe-oxide sorbents for the decomposition of organophosphorus pesticides were analyzed based on calcination temperature. Structural characterization was done using X-ray diffraction, scanning electron microscopy, Raman, and Fourier transform infrared spectroscopy. It was found that the magnetic properties of the sorbents deteriorated with increasing calcination temperature, leading to a decrease in degradation efficiency towards parathion and paraoxon methyl.
Article
Thermodynamics
Frantisek Zelenka, Pavel Broz, Jan Vrestal, Jiri Bursik, Adela Zemanova, Gerda Rogl, Peter Rogl
Summary: The thermal and phase stability of Half-Heusler alloys TiFe1.33Sb and TixNb1-xFeSb (x = 0, 0.15) have been studied, showing their long-term stability at high temperatures with only slight evaporation of antimony.
CALPHAD-COMPUTER COUPLING OF PHASE DIAGRAMS AND THERMOCHEMISTRY
(2021)
Article
Thermodynamics
Frantisek Zelenka, Jakub Stradal, Pavel Broz, Jan Vrestal, Jirf Bursik, Adela Zemanova, Gerda Rogl, Peter Rogl
Summary: This study investigates the thermal and phase stability of n-type skutterudites Sr0.07Ba0.07Yb0.07Co4Sb12 with high ZT values through experiments and data analysis. The results show the long-term operational stability of both bulk and nano-structured thermoelectric materials, with minimal evaporation of strontium, barium, and ytterbium, and slight evaporation of antimony.
CALPHAD-COMPUTER COUPLING OF PHASE DIAGRAMS AND THERMOCHEMISTRY
(2021)
Article
Chemistry, Inorganic & Nuclear
V. V. Romaka, G. Rogl, V Bursikova, J. Bursik, H. Michor, A. Grytsiv, E. Bauer, G. Giester, P. Rogl
Summary: Physical properties of three single-phase compounds with slightly nonstoichiometric compositions have been defined, and their metallic-like electrical resistivity and specific heat characteristics have been analyzed. The crystalline structures of these compounds have been studied through X-ray single crystal and TEM analyses, revealing similar metallic conductivity and dominant scattering from static defects.
DALTON TRANSACTIONS
(2022)
Article
Materials Science, Multidisciplinary
O. Zivotsky, Y. Jiraskova, J. Bursik, D. Janickovic, J. Cizek
Summary: The structure and magnetic properties of Mn2FeSi alloy, a potential Heusler material, were studied using rapid solidification technology. It was found that the as-prepared Mn2FeSi ribbon exhibited paramagnetism at room temperature and had a cubic structure with a lattice parameter of 0.567 nm. The presence of other phases at low temperatures affected the structural and physical properties of the sample after annealing.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2023)
Article
Chemistry, Physical
J. Sopousek, J. Pinkas, J. Bursik, M. Svoboda, P. Krasensky
Article
Materials Science, Multidisciplinary
Y. Liu, K. Zweiacker, C. Liu, J. T. McKeown, J. M. K. Wiezorek
Summary: The evolution of rapid solidification microstructure and solidification interface velocity of hypereutectic Al-20at.%Cu alloy after laser melting has been studied experimentally. It was found that the formation of microstructure was dominated by eutectic, alpha-cell, and banded morphology grains, and the growth modes changed with increasing interface velocity.
Article
Materials Science, Multidisciplinary
Bharat Gwalani, Julian Escobar, Miao Song, Jonova Thomas, Joshua Silverstein, Andrew Chihpin Chuang, Dileep Singh, Michael P. Brady, Yukinori Yamamoto, Thomas R. Watkins, Arun Devaraj
Summary: Castable alumina forming austenitic alloys exhibit superior creep life and oxidation resistance at high temperatures. This study reveals the mechanism behind the enhanced creep performance of these alloys by suppressing primary carbide formation and offers a promising alloy design strategy for high-temperature applications.
Article
Materials Science, Multidisciplinary
Jian Song, Qi Zhang, Songsong Yao, Kunming Yang, Houyu Ma, Jiamiao Ni, Boan Zhong, Yue Liu, Jian Wang, Tongxiang Fan
Summary: Recent studies have shown that achieving an atomically flat surface for metals can greatly improve their oxidation resistance and enhance their electronic-optical applications. Researchers have explored the use of graphene as a covering layer to achieve atomically flat surfaces. They found that high-temperature deposited graphene on copper surfaces formed mono-atomic steps, while annealed copper and transferred graphene on copper interfaces formed multi-atomic steps.
Article
Materials Science, Multidisciplinary
Jennifer A. Glerum, Jon-Erik Mogonye, David C. Dunand
Summary: Elemental powders of Al, Ti, Sc, and Zr are blended and processed via laser powder-bed fusion to create binary and ternary alloys. The microstructural analysis and mechanical testing show that the addition of Ti results in the formation of primary precipitates, while the addition of Sc and Zr leads to the formation of fine grain bands. The Al-0.25Ti-0.25Zr alloy exhibits comparable strain rates to Al-0.5Zr at low stresses, but significantly higher strain rates at higher stresses during compressive creep testing. Finite element modeling suggests that the connectivity of coarse and fine grain regions is a critical factor affecting the creep resistance of the alloys.
Article
Materials Science, Multidisciplinary
P. Jannotti, B. C. Hornbuckle, J. T. Lloyd, N. Lorenzo, M. Aniska, T. L. Luckenbaugh, A. J. Roberts, A. Giri, K. A. Darling
Summary: This work characterizes the thermo-mechanical behavior of bulk nanocrystalline Cu-Ta alloys under extreme conditions. The experiments reveal that the alloys exhibit unique mechanical properties, behaving differently from conventional nanocrystalline Cu. They do not undergo grain coarsening during extrusion and exhibit behavior similar to coarse-grained Cu.
Article
Materials Science, Multidisciplinary
Yiqing Wei, Jingwei Li, Daliang Zhang, Bin Zhang, Zizhen Zhou, Guang Han, Guoyu Wang, Carmelo Prestipino, Pierric Lemoine, Emmanuel Guilmeau, Xu Lu, Xiaoyuan Zhou
Summary: This study proposes a new strategy to modify microstructure by phase regulation, which can simultaneously enhance carrier mobility and reduce lattice thermal conductivity. The addition of Cu in layered SnSe2 induces a phase transition that leads to increased grain size and reduced stacking fault density, resulting in improved carrier mobility and lower lattice thermal conductivity.
Article
Materials Science, Multidisciplinary
Jia Chen, Zhengyu Zhang, Eitan Hershkovitz, Jonathan Poplawsky, Raja Shekar Bhupal Dandu, Chang-Yu Hung, Wenbo Wang, Yi Yao, Lin Li, Hongliang Xin, Honggyu Kim, Wenjun Cai
Summary: In this study, the structural origin of the pH-dependent repassivation mechanisms in multi-principal element alloys (MPEA) was investigated using surface characterization and computational simulations. It was found that selective oxidation in acidic to neutral solutions leads to enhanced nickel enrichment on the surface, resulting in reduced repassivation capability and corrosion resistance.
Article
Materials Science, Multidisciplinary
X. Y. Xu, C. P. Huang, H. Y. Wang, Y. Z. Li, M. X. Huang
Summary: The limited slip systems of magnesium (Mg) and its alloys hinder their wide applications. By conducting tensile straining experiments, researchers discovered a rate-dependent transition in the dislocation mechanisms of Mg alloys. At high strain rates, glissile dislocations dominate, while easy-glide dislocations dominate at low strain rates. Abundant glissile dislocations do not necessarily improve ductility.
Article
Materials Science, Multidisciplinary
M. S. Szczerba, M. J. Szczerba
Summary: Inverse temperature dependences of the detwinning stress were observed in face-centered cubic deformation twins in Cu-8at.%Al alloy. The detwinning stress increased with temperature when the pi detwinning mode was involved, but decreased when the pi/3 mode was involved. The dual effect of temperature on the detwinning stress was due to the reduction of internal stresses pre-existing within the deformation twins. The complete reduction of internal stresses at about 530 degrees C led to the equivalence of the critical stresses of different detwinning modes and a decrease in the yield stress anisotropy of the twin/matrix structure.
Article
Materials Science, Multidisciplinary
Taowen Dong, Tingting Qin, Wei Zhang, Yaowen Zhang, Zhuoran Feng, Yuxiang Gao, Zhongyu Pan, Zixiang Xia, Yan Wang, Chunming Yang, Peng Wang, Weitao Zheng
Summary: The interaction between the electrode and the electric double layer (EDL) significantly influences the energy storage mechanism. By studying the popular alpha-Fe2O3 electrode and the EDL interaction, we find that the energy storage mechanism of the electrode can be controlled by modulating the EDL.
Article
Materials Science, Multidisciplinary
Matthew R. Barnett, Jun Wang, Sitarama R. Kada, Alban de Vaucorbeil, Andrew Stevenson, Marc Fivel, Peter A. Lynch
Summary: The elastic-plastic transition in magnesium alloy Mg-4.5Zn exhibits bursts of deformation, which are characterized by sudden changes in grain orientation. These bursts occur in a coordinated manner among nearby grains, with the highest burst rate observed at the onset of full plasticity. The most significant burst events are associated with twinning, supported by the observation of twinned structures using electron microscopy. The bursts are often preceded and followed by a stasis in peak movement, indicating a certain "birth size" for twins upon formation and subsequent growth at a later stage.
Article
Materials Science, Multidisciplinary
Vaidehi Menon, Sambit Das, Vikram Gavini, Liang Qi
Summary: Understanding solute segregation thermodynamics is crucial for investigating grain boundary properties. The spectral approach and thermodynamic integration methods can be used to predict solute segregation behavior at grain boundaries and compare with experimental observations, thus aiding in alloy design and performance control.
Article
Materials Science, Multidisciplinary
Feiyu Qin, Lei Hu, Yingcai Zhu, Yuki Sakai, Shogo Kawaguchi, Akihiko Machida, Tetsu Watanuki, Yue-Wen Fang, Jun Sun, Xiangdong Ding, Masaki Azuma
Summary: This study reports on the negative and zero thermal expansion properties of Cd2Re2O7 and Cd1.95Ni0.05Re2O7 materials, along with their ultra-low thermal conductivity. Through investigations of their structures and phonon calculations, the synergistic effect of local structure distortion and soft phonons is revealed as the key to achieving these distinctive properties.
Article
Materials Science, Multidisciplinary
Thomas Beerli, Christian C. Roth, Dirk Mohr
Summary: A novel testing system for miniature specimens is designed to characterize the plastic response of materials for which conventional full-size specimens cannot be extracted. The system has an automated operation process, which reduces the damage to specimens caused by manual handling and improves the stability of the test results. The experiments show that the miniature specimens extracted from stainless steel and aluminum have high reproducibility, and the results are consistent with those of conventional-sized specimens. A correction procedure is provided to consider the influence of surface roughness and heat-affected zone caused by wire EDM.
Article
Materials Science, Multidisciplinary
Rani Mary Joy, Paulius Pobedinskas, Nina Baule, Shengyuan Bai, Daen Jannis, Nicolas Gauquelin, Marie-Amandine Pinault-Thaury, Francois Jomard, Kamatchi Jothiramalingam Sankaran, Rozita Rouzbahani, Fernando Lloret, Derese Desta, Jan D'Haen, Johan Verbeeck, Michael Frank Becker, Ken Haenen
Summary: This study investigates the influence of film microstructure and composition on the Young's modulus and residual stress in nanocrystalline diamond thin films. The results provide insights into the mechanical properties and intrinsic stress sources of these films, and demonstrate the potential for producing high-quality nanocrystalline diamond films under certain conditions.
