Article
Engineering, Chemical
Kaijie Lin, Yamei Fang, Dongdong Gu, Qing Ge, Jie Zhuang, Lixia Xi
Summary: Graphene is used as reinforcement in titanium matrix composites (TMCs) to enhance performance, with selective laser melting (SLM) showing great potential in fabrication. The study investigated the effects of ball milling time on properties of composite powder and formability of SLM. Results showed that 5-hour ball-milled composite powder had good sphericity and flowability. The optimized SLM-processed graphene reinforced TMCs exhibited higher microhardness and tensile strength compared to SLM-processed TC4.
ADVANCED POWDER TECHNOLOGY
(2021)
Article
Biochemistry & Molecular Biology
Bingxian Ou, Lixin Lu, Qinsheng Wang, Qing He, YiLin Xie, Junxia Yan
Summary: Titanium matrix composites reinforced by graphene exhibit excellent mechanical properties, and the addition of graphene nanosheets can improve the microstructure and mechanical properties of the composites.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Engineering, Chemical
C. Yang, J. C. Wang, L. M. Kang, T. Chen, W. W. Zhang, L. H. Liu, Y. Y. Li
Summary: A novel powder metallurgy strategy has been developed to overcome the room-temperature brittleness of pressureless sintered titanium matrix composites by evading Kirkendall's pores. By coating nanosized TiB2 powder with stearic acid and reactive sintering with micron-sized TiH2 powder, TiBw/Ti composites with nearly full density and low porosity have been prepared, exhibiting large tensile plasticity and high strength comparable to or even superior to some ceramic phase-reinforced pure Ti matrix composites.
Article
Engineering, Multidisciplinary
Zhiguang Zhou, Yunzhong Liu, Xiaohui Liu, Qiangkun Zhan, Kaidong Wang
Summary: In situ TiB reinforced titanium matrix composites were fabricated via selective laser melting, with optimized processing to achieve crack-free and fully dense composites. The distribution of TiB reinforcement in the composites was mainly in the form of whisker clusters, showing different distributions in TMC1 and TMC2. The improvement in mechanical properties of the composites was attributed to Hall-Petch strengthening and load-bearing transformation strengthening.
COMPOSITES PART B-ENGINEERING
(2021)
Article
Optics
Jianbo Jin, Shengfeng Zhou, Yu Zhao, Qiang Zhang, Xiaojian Wang, Wei Li, Dongchu Chen, Lai-Chang Zhang
Summary: The study investigated the effect of TiB2 content on the microstructure and wear resistance of titanium matrix composites fabricated by selective laser melting. It was found that increasing TiB2 content refined the microstructure and improved the wear resistance by inducing strengthening and hardening effects. Additionally, the in-situ reaction of TiB2 with Ti matrix during SLM resulted in the formation of TiB and refinement of Ti matrix, leading to enhanced properties of the composites.
OPTICS AND LASER TECHNOLOGY
(2021)
Article
Chemistry, Physical
Yang Zhou, Fang Yang, Cunguang Chen, Yanru Shao, Boxin Lu, Yanli Sui, Zhimeng Guo
Summary: High-plasticity in-situ TiB/Ti matrix composites with uniform microstructure and grain refinement were fabricated by vacuum sintering and hot rolling. The Ti-2.0 wt% ZrB2 composite exhibited outstanding mechanical properties, attributed to grain refinement and dominant role of dislocation substructure hardening.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Nanoscience & Nanotechnology
Zhiguang Zhou, Yunzhong Liu
Summary: In this study, in-situ TiB, TiC, and (TiB + TiC) reinforced titanium matrix composites were prepared using selective laser melting. The evolution mechanisms of in-situ TiB whisker and TiC particle were investigated. Micro-structural characterization and phase diagram analysis revealed that TiC particles were formed through dissolution-precipitation mechanism, while TiB whiskers were mainly reaction products. In the hybrid reinforced composite, the reaction product TiB whisker clusters acted as nucleation sites for TiC particles, altering their distribution. Compressive testing showed that TiB whiskers had a stronger strengthening effect than TiC particles, attributed to their different spatial distributions.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2023)
Article
Engineering, Multidisciplinary
Tielong Han, Fucheng Wang, Jiajun Li, Naiqin Zhao, Chunnian He
Summary: This study successfully dispersed nano-sized graphene nanoplates with high-content in the matrix uniformly by a modified ball milling strategy, which led to the simultaneous enhancement of strength and uniform elongation of the composites.
COMPOSITES PART B-ENGINEERING
(2021)
Article
Materials Science, Multidisciplinary
Yang Jin, Xiaolong Zhao, Peikang Bai, Wenbo Du, Haihong Liao, Yuxin Li, Minjie Liang, Bing Han, Zhanyong Zhao, Kai Yang
Summary: Graphene/AlSi10Mg composites were fabricated using selective laser melting. Analysis of the microstructure showed that graphene was uniformly dispersed and reduced the cell size and nano-Si precipitates. The addition of graphene inhibited cell boundary movement and increased the cell nucleation rate, resulting in decreased size of the composite's cell and nano-Si precipitates.
Article
Materials Science, Composites
Fei Lin, Mengyuan Ren, Fanghui Jia, Mingshuai Huo, Ming Yang, Zhixin Chen, Zhengyi Jiang
Summary: Heterostructured Al/10 vol% (TiC-GNPs) composites were produced by powder metallurgy (PM) with varying TiC-to-GNPs volume ratios. The dispersion of TiC in the matrix improved and the heterostructure of the composite was optimized as the TiC-to-GNPs ratio decreased. The compressive properties of the composite were significantly improved, achieving a balance between increased strength and retained ductility. However, the compressive properties decreased dramatically when the GNPs content reached 2 vol% due to the presence of GNPs agglomerates.
COMPOSITES COMMUNICATIONS
(2023)
Article
Materials Science, Multidisciplinary
Shuai Wang, FengBo Sun, WenQi Liu, Rui Zhang, Qi An, LuJun Huang, Jian Xiong, Lin Geng
Summary: Multilayer structured titanium matrix composites were fabricated through powder metallurgy, consisting of pure Ti layers and TiB reinforced Ti-6.5Al-2Zr-1Mo-1V (TA15) composite layers. The mechanical properties and deformation behavior of the composite under dynamic and quasi-static compressions were investigated. Dynamic compression improved the compressive flow stress and promoted the formation of {11 (2) over bar1} twins in both pure Ti layer and TA15 matrix.
MATERIALS CHARACTERIZATION
(2023)
Article
Chemistry, Physical
Yuchao Song, Fucheng Qiu, Dmytro Savvakin, Xiaofeng Xu, Oleksandr Stasiuk, Orest Ivasishin, Tuo Cheng
Summary: In this study, highly dense in situ reinforced Ti6Al4V/TiB composites were successfully manufactured using a hydrogen-assisted blended elemental powder metallurgy approach. By optimizing the processing parameters, composites with stable microstructures and excellent mechanical properties were obtained.
Article
Engineering, Multidisciplinary
Shaopeng Li, Xiaoyan Wang, Jianwen Le, Yuanfei Han, Nan Zong, Zichao Wei, Guangfa Huang, Weijie Lu
Summary: In this study, a new strategy was proposed to optimize the microstructure of powder metallurgical titanium matrix composites (TMCs) by in-situ planting nano-TiB networks, resulting in a significant improvement in mechanical properties. The well-designed TiB/IMI834 composites exhibited higher compressive yield strength and tensile strength compared to thermo-mechanically processed TMCs.
COMPOSITES PART B-ENGINEERING
(2022)
Article
Materials Science, Multidisciplinary
Kellen D. Traxel, Amit Bandyopadhyay
Summary: The desire for higher application temperatures and complex geometries for metallic materials has driven significant development in additive manufacturing (AM) of metal-ceramic composites. However, there is limited understanding of the process-microstructure-properties relationships for these materials and processing strategies. In this study, the processing window and high-temperature oxidation performance of an in situ reactive, oxidation-resistant titanium metal-matrix composite reinforced with boron nitride (BN) and boron carbide (B4C) were investigated via selective laser melting (SLM) to understand the effects of processing parameters on the in situ reactive characteristics and their influence on build reliability and high-temperature oxidation performance. Process optimization resulted in composites with high relative density and improved high-temperature oxidation resistance compared to the base material.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Materials Science, Multidisciplinary
M. Jia, Y. Alshammari, F. Yang, L. Bolzoni
Summary: TiB-reinforced Ti???6Al???4V composites with different B content were manufactured via flashless hot forging and the effects of solution plus aging heat treatments were studied. It was found that flashless hot forging can achieve fully dense materials, and the addition of B can significantly enhance the strengthening effect. The subsequent solution plus aging heat treatments can improve the mechanical properties and microstructure of the materials.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Materials Science, Multidisciplinary
Q. Yan, B. Chen, N. Kang, X. Lin, S. Lv, K. Kondoh, S. Li, J. S. Li
MATERIALS CHARACTERIZATION
(2020)
Article
Crystallography
Qi Yan, Biao Chen, Xinyi Zhou, Katsuyoshi Kondoh, Jinshan Li
Summary: The study investigated the impact of metal powder characteristics on graphene structure during the ball milling process. It found that metal particle size has a minor influence in low-energy ball milling, but plays an important role in high-energy ball milling. Increasing ball milling energy leads to increased structural defects in graphene, with limited damage when there is a large discrepancy in particle size.
Article
Chemistry, Physical
Q. Yan, B. Chen, B. Zhang, T. Zhang, J. Wan, J. Shen, H. C. Kou, J. S. Li
Summary: The study demonstrates successful reinforcement of Ti-6Al-4V alloy by decorating few-layered graphene with SiC nanoparticles. Decoration with SiC nanoparticles changes the morphology of the FLG/Ti interface, maintaining graphene integrity and promoting direct bonding between graphene and titanium matrix. This strategy of protecting reinforcement with secondary particle decoration has the potential for developing high-performance metal matrix composites.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
Q. Yan, B. Chen, L. Cao, K. Y. Liu, S. Li, L. Jia, K. Kondoh, J. S. Li
Summary: A quasi-networked reinforcement structure in titanium matrix composites was achieved by uniformly coating Ti-6Al-4V spherical powders with a graphene nanosheet layer, leading to higher tensile strength and good ductility compared to randomly dispersed graphene nanosheets and TiC. The study provided a method to fabricate titanium matrix composites with high strength and good ductility by forming a networked hybrid reinforcement structure.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2022)
Article
Nanoscience & Nanotechnology
Qi Yan, Biao Chen, Wenting Ye, Jie Wan, Tao Zhang, Hongchao Kou, Qin Zhou, Wenfeng Lu, Hao Wang, Jianghua Shen, Haifeng Wang, Jinshan Li
Summary: The lubricant effect of graphene in metals during friction and wear is difficult to achieve. This study improved the interface of composites by decorating few-layered graphene with SiC nanoparticles, resulting in significantly enhanced antiwear performance.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
K. Y. Liu, J. S. Li, J. Wan, Q. Yan, K. Kondoh, J. Shen, S. Li, B. Chen
Summary: A sintering-free process combining cold compaction and hot extrusion (CC-HE) was developed to fabricate high-performance carbon/Ti composites. The CC-HE-processed composites achieved superior tensile strength due to the improved effects of grain refinement and secondary-phase strengthening, resulting from enhanced carbon nanotube (CNT) integrity. This study provides a facile and large-scale production pathway for high-performance carbon/Ti composites.
Article
Engineering, Manufacturing
Wendi Shi, Qi Yan, Jianghua Shen, Biao Chen, Yulong Li
Summary: This study investigates the failure behavior of the quasi-continuous network architecture of graphene nanosheets (GNSs) under impact loading, as well as its influence on the macroscopic behavior of titanium metal matrix composites (TiMCs). The experimental results show that the quasi-continuous networked TiMCs exhibit a tendency to fail through adiabatic shearing, which is related to the network architecture rather than grain size or texture.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2022)
Article
Nanoscience & Nanotechnology
Wendi Shi, Qi Yan, Jianghua Shen, Biao Chen, Yulong Li
Summary: This study investigates the impact of graphene nanosheets (GNSs) network reinforcement in Ti-6Al-4V composites on their mechanical response, microstructure evolution, and failure mechanism. The results show that GNSs significantly improve the strength of the composites and induce local dynamic recrystallization in the matrix. This study provides a quantitative assessment of the strengthening mechanism and mechanical properties of the composites.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Chemistry, Physical
Qi Yan, Biao Chen, Wenting Ye, Tao Zhang, Jie Wan, Qing Zhou, Jianghua Shen, Jinshan Li, Wen Feng Lu, Hao Wang
Summary: Incorporating graphene with Ti alloys is challenging due to the poor chemical stability. This study developed an efficient powder metallurgy method to fabricate titanium matrix composites reinforced by a high content of graphene nanosheets. The resulting composites exhibited high mechanical strength, improved thermal conduction, reduced weight, and enhanced anti-wear performance, and the approach can be applied to other carbon/metal composites.
Article
Chemistry, Physical
Jie Sheng, Jingshan He, Dun Ma, Yuanbo Wang, Wu Shao, Tian Ding, Ronghao Cen, Jingwen He, Zhihao Deng, Wenjun Wu
Summary: This study presents an innovative approach to improve the photovoltaic conversion characteristics and stability of perovskite solar cells through carbon electrode interface modification. By in-situ polymerization and carbonization on the surface of nano-graphite, a dendritic structure carbon electrode is formed, reducing the work function and aligning the energy levels with perovskite. This leads to improved charge and hole collection efficiency, resulting in increased photovoltaic conversion efficiency. Furthermore, the modified carbon electrode-based perovskite solar cells exhibit exceptional stability, maintaining high efficiency even without encapsulation.
Article
Chemistry, Physical
Guodong Shi, Jian Song, Xiaoxiao Tian, Tongtong Liu, Zhanjun Wu
Summary: This study demonstrates the improvement of mechanical properties and reduction of coefficient of thermal expansion (CTE) in graphene oxide (GO)/epoxy (EP) nanocomposites by enhancing the interface between GO and EP through functionalization and incorporating rigid-flexible interphases. The results reveal that the SiO2-PEA-GO hybrid exhibits better strengthening and toughening effects, as well as lower CTE, compared to the PEA-GO hybrid due to the presence of rigid-flexible interfaces with higher bonding strength and better energy dissipation mechanisms. Additionally, the nanocomposites with longer polyetheramine (PEA) molecules in the rigid-flexible interphases demonstrate higher strength and toughness, while maintaining a lower CTE. This work provides a promising strategy for constructing adjustable flexible-rigid interfacial structures and offers potential in developing GO/EP nanocomposites with high mechanical properties and low CTE.
Article
Chemistry, Physical
Rafal Janus, Sebastian Jarczewski, Jacek Jagiello, Piotr Natkanski, Mariusz Wadrzyk, Marek Lewandowski, Marek Michalik, Piotr Kustrowski
Summary: In this study, a facile procedure for the synthesis of CMK-1 and CMK-2 carbon replicas was developed. The method utilizes basic laboratory equipment and a renewable carbon source, and operates under mild conditions. The resulting carbon mesostructures exhibit exquisite replication fidelity and structural homogeneity, making them suitable for applications in various fields.
Article
Chemistry, Physical
Anqi Wang, Connor J. MacRobbie, Alex Baranovsky, Jean-Pierre Hickey, John Z. Wen
Summary: In this study, a novel polymer-free nanothermite aerogel with a wide range of nanoparticle loading was fabricated via a new additive manufacturing process. The SEM images showed a unique porous structure formed by extra thin rGO sheets, wrapping individual nanothermite clusters. The DSC-TGA results and high-speed combustion videos confirmed the enhanced energetic performance of the printed specimen.
Article
Chemistry, Physical
Wanze Wu, Misheng Zhao, Shiwei Miao, Xiaoyan Li, Yongzhong Wu, Xiao Gong, Hangxiang Wang
Summary: Superhydrophobic solar-driven interfacial evaporator is an energy-efficient technology for seawater desalination, which is easily fabricated using robust photothermal superhydrophobic coating and substrate. The created bifunctional coating on the melamine sponge substrate shows stable and highly efficient photothermal and superhydrophobic performance for seawater desalination. This superhydrophobic solar-driven interfacial evaporator is expected to have wide applications in seawater desalination.
Article
Chemistry, Physical
Zichen Xiang, Zhi Song, Tiansheng Wang, Menghang Feng, Yijing Zhao, Qitu Zhang, Yi Hou, Lixi Wang
Summary: This study presents a co-electrospinning synthesis strategy to fabricate lightweight and porous Co@C composite nanofibres with wideband microwave attenuation capacity. The addition of MOF-derived Co additives enhances the low-frequency absorption performance.
Article
Chemistry, Physical
J. Snow, C. Olson, E. Torres, K. Shirley, E. Cazalas
Summary: This study investigates the use of a perovskite-based graphene field effect transistor (P-GFET) device for X-ray detection. The sensitivity and responsivity of the device were found to be influenced by factors such as X-ray tube voltage, current, and source-drain voltage. Simulation experiments were conducted to determine the dose rate and energy incident on the device during irradiation.
Article
Chemistry, Physical
Zuzana Jankovska, Lenka Matejova, Jonas Tokarsky, Pavlina Peikertova, Milan Dopita, Karolina Gorzolkova, Dominika Habermannova, Michal Vastyl, Jakub Belik
Summary: This study provides new insights into microwave-assisted pyrolysis of scrap tyres, demonstrating that it can produce microporous carbon black with potential application in xylene adsorption. Compared to conventional pyrolysis, microwave pyrolysis requires less time and energy while maintaining similar adsorption capacity.
Article
Chemistry, Physical
Max Bommert, Bruno Schuler, Carlo A. Pignedoli, Roland Widmer, Oliver Groning
Summary: A detailed understanding of the interaction between molecules and two-dimensional materials is crucial for incorporating functional molecular films into next-generation 2D material-organic hybrid devices. This study compares the energy level alignment of different-sized fullerenes on a Moire superstructure and finds that C-84 fullerenes can be either neutral or negatively charged depending on slight variations of the electrostatic potential. This discovery suggests a new path to achieve ambipolar charge transfer without overcoming the electronic gap of fullerenes.
Article
Chemistry, Physical
Yuanjing Cheng, Xianxian Sun, Ye Yuan, Shuang Yang, Yuanhao Ning, Dan Wang, Weilong Yin, Yibin Li
Summary: The dual-structure aerogel (GS) consisting of flexible silica fibers and graphene honeycomb structures exhibits excellent resilience, flexibility, and reliability. It also shows remarkable wave absorbing performance, making it an ideal candidate for microwave absorption applications such as flexible electronics and aerospace.
Article
Chemistry, Physical
Shuyu Fan, Yinong Chen, Shu Xiao, Kejun Shi, Xinyu Meng, Songsheng Lin, Fenghua Su, Yifan Su, Paul K. Chu
Summary: Graphene coatings are promising solid lubrication materials due to their mechanical properties. This study presents a new method for in situ deposition of high-quality graphene coatings on hard substrates using NiCo solid solution and competitive reaction strategies. The graphene coating deposited on substrates with deep NiCo solid solution demonstrates superior low-friction and durability.
Article
Chemistry, Physical
Mengdi Wang, Sanyin Qu, Yanling Chen, Qin Yao, Lidong Chen
Summary: The improved thermoelectric properties of conducting polymers are achieved by selectively capturing single-walled carbon nanotubes (SWNTs) in a conducting polymer film, leading to increased carrier mobility and reduced thermal conductivity. The resulting composite film exhibits significantly higher electrical conductivity and lower thermal conductivity compared to films with a mixture of SWNTs. This work provides a convenient and efficient method to enhance the thermoelectric properties of conducting polymers.
Review
Chemistry, Physical
Heng Wei, Weihua Li, Kareem Bachagha
Summary: This article reviews the research progress of carbon nanotube-based microwave absorbing materials (MAMs) in recent years, covering the fundamental theory, design strategies, synthesis methods, and future development directions.
Article
Chemistry, Physical
Chenguang Shi, Junlong Huang, Zongheng Cen, Tan Yi, Shaohong Liu, Ruowen Fu
Summary: This study developed a high-performance Li metal host material, which achieved dendrite-free Li deposition with a low nucleation overpotential and high Coulombic efficiencies through the combination of Ti3C2-g-PV4P sheets and Ag nanoparticles. The full cells assembled with the Li@host anode and LiFePO4 cathode exhibited high discharge capacity and excellent cycling stability, demonstrating a perspective design for future energy storage devices.
Article
Chemistry, Physical
Tomotaro Mae, Kentaro Kaneko, Hiroki Sakurai, Suguru Noda
Summary: A new partial prelithiation method for SiO/C-CNT electrodes was developed, which showed reduced irreversible capacity and achieved high energy densities with good reversibility. The method allows for precise control of the degree of prelithiation and is applicable to various chemistries.
