Article
Materials Science, Multidisciplinary
Zhaosong Liu, Zongan Luo, Yingying Feng, Xin Zhang
Summary: In this study, the (TiC + B4C)/6061Al composite was fabricated by vacuum hot-press sintering, and the microstructure, element distribution, and tensile properties were analyzed. The results showed that the composite had a dense microstructure without any defects. The addition of B4C promoted the diffusion of B and C to the aluminum matrix and TiC. The particles of TiC and B4C not only refined the grain size of the aluminum matrix but also changed the distribution of the Mg2Si phase along the grain boundary. Due to the addition of particles, the fracture mode of 6061Al changed from ductile fracture to ductile fracture of the aluminum matrix and cleavage fracture of particles.
Article
Materials Science, Multidisciplinary
Guihang Deng, Haitao Liu, Ru Jiang, Xiaofei Chen, Xun Sun
Summary: Sintering temperature has a significant effect on the mechanical properties of ceramic matrix composites. This study investigates the effect of sintering temperature (900-1200 degrees C) on the micro- and macromechanical properties of an oxide fiber-reinforced oxide matrix composite. The results show an increase in the elastic modulus of the matrix and interfacial shear strength with increasing sintering temperature, with crack propagation changing from interface deflection to direct penetration into the matrix at 1200 degrees C. The study also finds that the composite sintered at 1100 degrees C achieves a good balance between fracture strength and fracture toughness.
ADVANCED ENGINEERING MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Jian Zhang, Lifeng Ma, Guanghui Zhao, Zhihui Cai, Chenchen Zhi
Summary: This study evaluated and analyzed the local strain evolution and macro fracture morphology of AZ31/6061 explosive composite plate during uniaxial tension using the digital image correlation (DIC) method. The effects of annealing at different temperatures on the fracture behavior of the composite plate were comprehensively studied. The results showed that the interfacial bonding strength and mechanical properties of the composite plate were influenced by the annealing temperature.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Materials Science, Multidisciplinary
Devashish Rajpoot, R. Lakshmi Narayan, Long Zhang, Punit Kumar, Haifeng Zhang, Parag Tandaiya, Upadrasta Ramamurty
Summary: This study investigates the embrittlement of a beta-Ti dendrite reinforced Zr-based bulk metallic glass composite (BMGC) when cast in a large size, and examines the effectiveness of cryothermal cycling (CTC) treatment in restoring the mode I fracture toughness. The plasticity of CTC treated BMGC is estimated through nanoindentation tests and differential scanning calorimetry (DSC), and validated through compression tests. The study reveals that both as-cast embrittled BMGC and CTC treated BMGC exhibit brittleness, with 5 times lower notch toughness compared to their tougher counterpart. The absence of notch-tip plasticity in the CTC treated BMGC, despite indications of plasticity in nanoindentation and higher enthalpy of relaxation (Delta H-rel), is explained through reassessing the origin of pop-ins in nanoindentation tests and variations in chemical and topological short range ordering during CTC. The implications of these results for improving the fracture toughness of structurally relaxed BMGCs using CTC are discussed.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2022)
Article
Nanoscience & Nanotechnology
Yang Han, Zejian Xu, Wang Dou, Changzeng Fan, Bing Hou, Xiaodong He, Yan Liu, Fenglei Huang
Summary: This study presents a novel experimental technique to determine the dynamic fracture toughness of bulk metallic glasses at high loading rates. The results show that the loading rate does not significantly affect the fracture toughness, but decreases the fracture initiation time. The fracture surface exhibits different regions with distinct failure modes and micromechanisms.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Engineering, Manufacturing
Congzhe Wang, Anastasios P. Vassilopoulos, Thomas Keller
Summary: In this study, the 2D delamination growth in composite laminates under the Mode-II fracture condition was experimentally investigated using a novel set-up. The delamination process in 2D experiments was divided into three stages: crack initiation, slow propagation, and subsequent rapid propagation. Compared to 1D experiments, the load continued to increase in 2D cases even after rapid crack propagation due to the increasing crack-front length. A longer fracture process zone, including large-scale fiber bridging, was observed in 2D specimens compared to 1D specimens under post-inspection with a digital microscope.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2023)
Article
Materials Science, Ceramics
Chunyan Zhang, Hongwei Wang, Haolan Fang, Fancheng Meng, Huixing Lin
Summary: The effects of BaTiO3 content and annealing process on the microstructure, phase composition, dielectric properties and thermal conductivity of Si3N4-BaTiO3 composite ceramics were studied. Increasing BaTiO3 content improved the density and dielectric performance but reduced the thermal conductivity. Annealing treatment improved the structure and properties, but slightly reduced thermal conductivity.
CERAMICS INTERNATIONAL
(2022)
Article
Nanoscience & Nanotechnology
Tomoki Matsuda, Ryotaro Seo, Akio Hirose
Summary: The interfacial strength and fracture behavior of Ag/Si interfaces formed by a composite paste comprising Ag2O microparticles, Ag microflakes, and terpineol is studied through microscale tensile testing. The paste induces a delayed reduction of Ag2O and subsequent interconnection between the Ag grains and Si substrate. The characteristic interface formation helps achieve a high joint strength at a bonding temperature of 250 degrees C and the fracture occurs in the Ag layer rather than at the interface.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2023)
Article
Agricultural Engineering
Selsabil Rokia Laraba, Amine Rezzoug, Rafik Halimi, Luo Wei, Yuhao Yang, Said Abdi, Yulin Li, Wei Jie
Summary: Alfa grass, an abundant and renewable natural fiber resource in North Africa, was utilized to prepare a sandwich panel. The resulting sandwich showed superior mechanical performance compared to other bio-based sandwiches, but had higher density. The hybridization of jute improved the rigidity of the skin, but decreased the tensile strength. The delamination at the interface between the core and skin, caused by the presence of metallic mesh, adversely affected the mechanical properties of the sandwich.
INDUSTRIAL CROPS AND PRODUCTS
(2022)
Article
Chemistry, Physical
Chengxin Du, Feng Zhou, Guangfa Gao, Zhonghua Du, Huameng Fu, Zhengwang Zhu, Chun Cheng
Summary: The fracture mechanism of high-velocity penetration of penetrators is studied in order to adapt to the launch velocity of modern artillery. A study on the penetration fracture mode of tungsten-fiber-reinforced Zr-based bulk metallic glass matrix composite (WF/Zr-MG) rods at high velocity is conducted. The experimental results show that the higher penetration ability of WF/Zr-MG rods is due to their self-sharpening feature and a longer quasi-steady penetration phase compared to tungsten alloy (WHA) rods. The deformation mode of the Zr-based bulk metallic glass matrix (Zr-MG) is an important factor affecting the penetration fracture mode of the WF/Zr-MG rod.
Article
Engineering, Mechanical
X. C. Tang, X. H. Yao, Justin W. Wilkerson
Summary: This study extends previous work on dynamic void growth in amorphous materials by considering a wider range of stress states, strain softening, stable/unstable void growth modes, and viscous/micro-inertial effects on void growth rates. A new constitutive theory is proposed to understand transitions in fracture morphologies, with a focus on competing processes of strain-softening behavior and stress plateau effects in amorphous materials. The simulation results highlight the essential role of strain-softening in the formation of cup-cone fracture morphology during dynamic compression.
INTERNATIONAL JOURNAL OF PLASTICITY
(2021)
Article
Nanoscience & Nanotechnology
Shuai Zhao, Yanwei Dai, Fei Qin, Yanning Li, Lingyun Liu, Zhi Zan, Tong An, Pei Chen, Yanpeng Gong, Yuexing Wang
Summary: This paper investigates the mode II fracture toughness of sintered silver (Ag) and shows that the fracture toughness increases rapidly with the increase of sintering temperature and holding time. Three different shearing crack types are confirmed. Statistical analysis on microstructure evolution reveals that the shearing fracture toughness is influenced by Ag particle size, particle shape form factor, and porosity.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Materials Science, Ceramics
Fanyong Zhang, Chao Li, Shu Yan, Jining He, Fuxing Yin
Summary: Ti-Si-C composite coatings were fabricated by plasma spraying using Ti/Si/graphite agglomerates as feedstock. Ar-annealing was carried out to enhance the performance of the coatings. The coatings showed improved mechanical properties after annealing, with increased hardness, fracture toughness, and a uniform microstructure.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Physical
Kevin K. Ly, David M. Ceperley
Summary: This work proposes a simple scheme to perform phonon calculations with quantum Monte Carlo (QMC) methods and applies it to metallic hydrogen. The conventional method of calculating force constants in metallic hydrogen is computationally expensive due to its energy and length scales, as well as statistical noise inherent in QMC methods. The authors demonstrate an alternate approach that is nearly 100 times more efficient in resolving the force constants required for calculating the phonon spectrum in the harmonic approximation, requiring only the calculation of atomic forces without significant programmatic modification.
JOURNAL OF CHEMICAL PHYSICS
(2022)
Article
Thermodynamics
Thomaz Augusto Guisard Restivo, Raphael Basilio Pires Nonato, Rossana Rossoni Figueira, Odirlei Amaro Ferreira, Claudio Padovani, Norberto Aranha, Denicesar Baldo, Cecilia Guedes e Silva, Michelangelo Durazzo
Summary: Metallic diamond (MD) is a new alloy class with unparalleled hardness surpassing current alloys by more than twofold, reaching up to 2500 HV (kgf mm(-2)). Simple metallurgical principles are employed in the alloy design, using the Lattice Occupancy Project aided by Diamoy 1.0 software to maximize chromium equivalent values and promote body-centred cubic structures. Powder metallurgy techniques are suggested as valid processing routes for forming these challenging alloys into parts. The sintering behavior of the hardest MD-4 and MD-5 alloy powders is studied, with MD-5 showing intense shrinkage and MD-4 exhibiting minimal sintering. MD-5 alloy powder is identified as a promising raw material for tool parts production in competition with cemented carbide hard tools.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2023)
Article
Materials Science, Multidisciplinary
M. Ahangarkani, K. Zangeneh-Madar, S. Borji, Z. Valefi
INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS
(2017)
Article
Materials Science, Multidisciplinary
S. Borji, M. Ahangarkani, K. Zangeneh-Madar, Z. Valefi
INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS
(2017)
Correction
Materials Science, Multidisciplinary
S. Borji, M. Ahangarkani, K. Zangeneh-Madar, Z. Valefi
INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS
(2018)
Article
Materials Science, Multidisciplinary
M. Ahangarkani, K. Zangeneh-madar, S. Borji, Z. Valefi
INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS
(2018)
Article
Materials Science, Multidisciplinary
M. Ahangarkani, K. Zangeneh-Madar, S. Borji
INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS
(2018)
Correction
Materials Science, Multidisciplinary
Meysam Ahangarkani, Karim Zangeneh-Madar, Saeed Borji
INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS
(2018)
Article
Materials Science, Multidisciplinary
M. Ahangarkani, K. Zangeneh-madar, S. Borji
INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS
(2018)
Article
Materials Science, Multidisciplinary
M. Ahangarkani
INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS
(2018)
Article
Materials Science, Multidisciplinary
L. L. Dong, M. Ahangarkani, W. G. Chen, Y. S. Zhang
INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS
(2018)
Correction
Materials Science, Multidisciplinary
Meysam Ahangarkani, Karim Zangeneh-Madar, Saeed Borji
Article
Materials Science, Multidisciplinary
Meysam Ahangarkani, Karim Zangeneh-Madar, Saeed Borji
Article
Materials Science, Coatings & Films
Wenge Chen, Pei Feng, Longlong Dong, Meysam Ahangarkani, Shuxin Ren, Yongqing Fu
SURFACE & COATINGS TECHNOLOGY
(2018)
Article
Materials Science, Multidisciplinary
L. L. Dong, Q. Jin, X. Liu, M. Ahangarkani, C. H. Zheng, Y. S. Zhang
Article
Materials Science, Multidisciplinary
S. Borgi, K. Zangeneh-madar, M. Ahangarkani, Z. Valefi
IRANIAN JOURNAL OF MATERIALS SCIENCE AND ENGINEERING
(2017)
Article
Materials Science, Multidisciplinary
Deyong Zheng, Huihui Jin, Yucong Liao, Pengxia Ji
Summary: In this study, a highly stable and efficient catalyst, fluorine-doped Co3O4 (F-Co3O4), was developed for hydrogen production by water electrolysis. The F-Co3O4 catalyst exhibited a remarkable reduction in overpotential and demonstrated excellent stability for over 100 hours.
Article
Materials Science, Multidisciplinary
Ziwen Lv, Jintao Wang, Fengyi Wang, Jianqiang Wang, Fuquan Li, Hongtao Chen
Summary: Adding Cu6Sn5 nano particles can effectively inhibit the overgrowth of intermetallic compounds at the interfaces of solder joints in electronic devices, providing a solution to this issue. A new growth mechanism of intermetallic compounds at the interfaces was identified.
Article
Materials Science, Multidisciplinary
Jun Wang, Jiawei Chen, Wanru Liao, Fangyang Liu, Min Liu, Liangxing Jiang
Summary: A BiOI/AgI/Ag plasmonic heterostructure photocathode was successfully designed through electrodeposition, ion-exchange, and illumination methods. This photocathode exhibits superior performance in photoelectrochemical water splitting.
Article
Materials Science, Multidisciplinary
Xiaoxiao Liu, Xianxian Zhou, Xiaotao Ma, Qinbo Yuan, Shibin Liu
Summary: In this study, the authors propose a method to accelerate the reaction of polysulfides in lithium-sulfur batteries using a Ni@OC Mott-Schottky heterojunction as a catalyst. The experimental results demonstrate that the charge redistribution at the Ni@OC interface accelerates electron transfer and enhances catalytic activity, leading to improved reaction kinetics and battery performance.
Article
Materials Science, Multidisciplinary
Dayou Ma, Mohammad Rezasefat, Joziel Aparecido da Cruz, Sandro Campos Amico, Marco Giglio, Andrea Manes
Summary: The matrix has a significant effect on the impact resistance of composite materials. Replacing a brittle polymer with a more flexible one can improve impact resistance, but it poses challenges to standard testing methods. This study designs a new fixture for testing the low-velocity impact of soft composites and investigates the effect of the fixture on the mechanical performance.
Article
Materials Science, Multidisciplinary
Lingchang Wang, Qihang Yang, Huzhen Li, Ming Wei, Qian Wang, Zhenzhong Hu, Mengmeng Zhen
Summary: Bronze titanium dioxide (TiO2(B)) is a promising anode material for lithium-ion batteries due to its high specific capacity. However, its practical applications are hindered by poor conductivity and limited electrochemical kinetics. In this study, TiO2(B)-carbon nanosheets heterostructures are synthesized to enhance the cycling performance and rate capability of TiO2(B).
Article
Materials Science, Multidisciplinary
Atul Thakur, Ritesh Verma, Ankush Chauhan, Fayu Wan, Preeti Thakur
Summary: In this study, BaFe12O19 and BaFe12O19: Epoxy (50:50) nanocomposites were synthesized using the co-precipitation method. The structural information and material properties, such as crystallite size and electrical conductivity, were characterized by XRD, FESEM, EDX, and TEM techniques.
Article
Materials Science, Multidisciplinary
Jingyu Wu, Xinyan Ma, Yong Yang
Summary: A well-defined CoS2@NC(CS-500) hierarchical binder-free catalyst cathode is constructed through in-situ grown of ZIF-67 on carbon cloth and high-temperature carbonization. The cathode shows excellent reaction kinetics and electrochemical performance, providing inspiration for developing advanced Li-CO2 battery catalysts.
Article
Materials Science, Multidisciplinary
Svetlana M. Posokhova, Vladimir A. Morozov, Kirill N. Boldyrev, Dina Deyneko, Erzhena T. Pavlova, Bogdan I. Lazoryak
Summary: This study explores the impact of synthesis method and composition on the structure and luminescence properties of K5Eu1-xHox(MoO4)4 with the palmierite-type matrix. The co-doping of Eu3+ and Ho3+ ions plays a critical role in manipulating charge transfer and luminescence efficiency in the visible and infrared regions.
Article
Materials Science, Multidisciplinary
Jian Wang, Yeting Tao, Jingsheng Wang, Youtian Tao
Summary: A new electron-transport material iTPyBI-CN is developed through non-catalytic C-N coupling reaction. It exhibits better electroluminescence efficiency in organic light-emitting diodes compared to the commercial material TPBI, due to its twisted geometry and higher energy levels.
Article
Materials Science, Multidisciplinary
Tao Zhu, Feng Huang, Shuo Li, Yang Zhou
Summary: This article combines XRD analysis and microscopic structural observation to investigate the changes in limestone after high-temperature treatment. It finds that 500 degrees C is the critical temperature for crystalline and spatial arrangement changes in limestone, and the thermal conductivity, specific heat capacity, and heat storage coefficient gradually decrease after thermal treatment.
Article
Materials Science, Multidisciplinary
Muhammad Haekal Habibie, Fransiska Sri Herwahyu Krismastuti, Abdi Wira Septama, Faiza Maryani, Vivi Fauzia
Summary: This study focuses on the synthesis of zinc oxide nanostructure from zinc recovered from galvanization ash and highlights its potential as a sustainable source of zinc and as an antibacterial agent.
Article
Materials Science, Multidisciplinary
Jingyi Li, Yixin Xing, Wei Gu, Shousi Lu
Summary: In this study, PC@CaP microparticles were fabricated using biomimetic mineralization. The results showed that under environmental stress, PC@CaP exhibited improved stability and antioxidative activity, indicating its potential use in high-added value fields.
Article
Materials Science, Multidisciplinary
Yan Liu, Shunyou Chen
Summary: In this study, TNTs were used as a drug carrier and modified with ZIF-8 and silk fibroin to obtain a new drug loading platform. The results showed that this drug-loaded platform had a good drug release effect in vitro and could promote cell proliferation and osteogenic differentiation.
Article
Materials Science, Multidisciplinary
Chunhui Zhu, Wentao Wang, Qing Zhen, Xinning Huang, Shixin Li, Shaochang Wang, Xiaoping Ma, Xiaoxia Liu, Yalong Jiao, Kai Sun, Zhuangzhi Li, Huaixin Yang, Jianqi Li
Summary: A type of stacking fault is revealed in e-InSe crystal, which is associated with a small stacking-fault energy and shows exceptional plasticity.