Article
Materials Science, Ceramics
Sai Li, Yifeng Li, Quanwei Wang, Kai Miao, Xue Liang, Zhongliang Lu, Dichen Li
Summary: A novel method combining DIW and pressureless infiltration was proposed for fabricating 3DSiC/Al composites, where carbon fiber was added to DIW ink as a pore-forming agent. The study investigated the effects of SiC particle size and carbon fiber content on mechanical properties and infiltration process, and analyzed the interfacial and interpenetrating phase compositions of the samples through SEM, EDS, and XRD. The results showed improved infiltration effect with carbon fiber and different thicknesses of SiO2 layers affecting the process differently, with the final sample exhibiting good mechanical properties.
CERAMICS INTERNATIONAL
(2021)
Article
Physics, Applied
Wenfu Wei, Xiaobo Li, Zefeng Yang, Zhanglin Huang, Haozi Zuo, Qianhua Liao, Wenhan Xie, Guofeng Yin, Guangning Wu
Summary: This study introduces a pressureless infiltration strategy to prepare highly conductive graphite matrix/copper composites. By constructing a tungsten carbide network in the graphite matrix, the capillary force was transformed from the resistance mode to the impetus mode, reducing the contact angle of graphite/copper and achieving good interfacial bonding. The electrical conductivity of the composites reaches 15.1 x 10(5) S/m, surpassing industry standards.
JOURNAL OF APPLIED PHYSICS
(2021)
Article
Chemistry, Analytical
Lu Zhang, Yan Li, Simeng Li, Ping Gong, Qiaoyu Chen, Haoze Geng, Minxi Sun, Qinglei Sun, Liang Hao
Summary: The poor wettability and weak interfacial bonding of diamond/copper composites can be improved by coating copper and titanium on the diamond particle surface. Three-dimensionally printing copper-coated diamond/copper composites can achieve high thermal conductivity.
Article
Materials Science, Multidisciplinary
Zhijie Ye, Zhenhua Su, Kunlong Zhao, Xiaolei Wang, Wenxin Cao, Bing Dai, Ning Yan, Shuai Xu, Zhiqiang Wang, Jiaqi Zhu
Summary: Diamond/copper composites with excellent thermophysical properties and wide potential for heat dissipation have been studied. However, processing complex shape parts is challenging due to their high hardness. To solve this problem, the isostatic pressure technique was proposed. By combining pressureless sintering with cold and hot isostatic pressing, shaped diamond/copper composites with a thermal conductivity of 620 W/mK were prepared, which is 57% higher than pure copper. The density of the skeleton was enhanced by cold isostatic pressing, followed by pressureless sintering to change the pore structure. Finally, hot isostatic pressing was employed to eliminate closed holes and improve the overall performance of the composite.
Article
Metallurgy & Metallurgical Engineering
Shu-gang Dai, Jin-wang LI, Chang-ji Wang
Summary: In this study, tungsten was successfully plated on the surface of diamond using the thermal diffusion method. Different process parameters were investigated for their effects on the thermal conductivity of diamond/copper composites. The results showed that plating tungsten on diamond improved the interface bonding, with the integrity and uniformity of the coating being more important factors for high thermal conductivity. Furthermore, annealing the tungsten-plated diamond enhanced the metallurgical bonding between the coating and the diamond, leading to further improvement in thermal conductivity.
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
(2022)
Article
Chemistry, Physical
Jianquan Sang, Ye Yuan, Wulin Yang, Jiajun Zhu, Licai Fu, Deyi Li, Lingping Zhou
Summary: By preparing WC layers of different thicknesses using magnetron sputtering and studying the interface structure, density, and thermal conductivity of the composites, it was found that thermal boundary conductance is the main factor affecting the variation of thermal conductivity in the composites. Adjusting the interlayer thickness to optimize higher thermal boundary conductance is crucial for enhancing the thermal conductivity of the composite.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Jiani Yu, Lidong Wang, Zhaoyuan Liu, Jie Xu, Yingying Zong
Summary: Graphene reinforced copper composites have potential applications in various industries, but the current preparation methods are complicated and expensive. This study successfully prepared graphene reinforced copper composites with excellent overall properties by combining electrodeposition, thermal reduction, and sintering. The addition of graphene improved the nucleation process and refined the grains, resulting in improved mechanical properties. The copper matrix was purified, and the oxygen-containing functional groups of graphene oxide were partially repaired, leading to improved electrical properties. Compared to the one-step electrodeposition method, the graphene in the composites had fewer oxygen-containing functional groups, ensuring thermal stability.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Ceramics
Yuying Zhang, Tianshi Wang, Chun-Yen Hsu, Justin Wynn, Prashant Karandikar, Joseph P. Feser, Chaoying Ni
Summary: The study investigated the thermal conductivity of diamond/SiC composites and its correlation with diamond volume percentage, as well as evaluated the annealing effect and thermal stability of the composites. The results showed a strong relationship between thermal conductivity and diamond content, with a level-off observed at high diamond content indicating increased thermal resistance. Additionally, the study demonstrated the potential of Si liquid infiltration method in fabricating fully dense composites with desired phase structures and exceptional properties.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Composites
Roman Shishkin, Yuliy Yuferov
Summary: The microstructure of SiC matrix composite materials produced by pressureless aluminum melt infiltration at 950 degrees Celsius was investigated. It was found that there are different areas formed during the direct infiltration of aluminum into sintered SiC preform, leading to improved density and hardness of the infiltrated composite material, making it a prospective wear resistant lining.
COMPOSITES COMMUNICATIONS
(2022)
Retraction
Multidisciplinary Sciences
Youhong Sun, Linkai He, Chi Zhang, Qingnan Meng, Baochang Liu, Ke Gao, Mao Wen, Weitao Zheng
Summary: This article has been retracted; the retraction note can be found at https://www.nature.com/articles/10.1038/s41598-022-25431-8.
SCIENTIFIC REPORTS
(2022)
Article
Engineering, Manufacturing
Shuai-Shuai Li, Rui-Fen Guo, Dong-Xu Zhao, Li-Kai Yang, Ping Shen
Summary: Cr3C2/Cu composites with laminated interpenetrating structures were prepared using direct ink writing and pressureless infiltration. The laminated structures resulted in significant anisotropy and improved toughness and bending strength of the composites. The toughening effect was mainly attributed to processes such as plastic deformation, crack deflection, ligament bridging, and multiple cracking.
ADDITIVE MANUFACTURING
(2022)
Article
Materials Science, Ceramics
Tengteng Xu, Zhimin An, Guocheng Qi, Xianbo Hou, Rubing Zhang
Summary: In this study, a new preparation process called vacuum-assisted slurry infiltration (VASI) is introduced for obtaining SiO2 f/SiO2 composites. This method improves manufacturing cycles by allowing the use of ceramic slurries with high solid content and low viscosity. The composites prepared by the VASI method exhibit high flexural and tensile strength, attributed to the homogeneous porous matrix design and the crack energy dissipation mechanisms enabled by the porous matrix. Comparatively, composites fabricated via silica sol infiltration show lower mechanical properties and brittle fracture behavior due to defects in the matrix. This work makes it possible to meet the requirements of low-cost, short preparation cycles, and near-net-shape manufacturing technology for SiO2 f/SiO2 composites.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2023)
Article
Materials Science, Ceramics
Li-Kai Yang, Quan Jin, Rui-Fen Guo, Ping Shen
Summary: This study provides a facile and tailorable method for the design and preparation of novel Mg-matrix composites with bio-inspired structures and biomedical functions. The resulting HA/Mg composites displayed a delicate biomimetic lamellar structure with alternating ceramic/metal arrangements and demonstrated higher compressive strength and wear resistance than porcine bones. The composites also exhibited progressive degradation and surface apatite mineralization in a simulated body fluid environment, showing potential for biomedical applications.
CERAMICS INTERNATIONAL
(2021)
Article
Nanoscience & Nanotechnology
Dong-Xu Zhao, Shuai-Shuai Li, Li-Kai Yang, Zi-Hao Zhang, Ping Shen
Summary: We developed a novel method using a combination of direct ink writing and magnet-assisted pressure infiltration to fabricate near-net-shape laminated Al/Al2O3 composites. The effects of sintering temperature and metal layer thickness on the microstructure and mechanical properties of the composites were investigated. It was found that an increase in sintering temperature and a decrease in metal layer thickness led to an increase in bending strength but a decrease in crack-growth toughness of the composites. The fracture behavior of the composites depended on the structural orientation, with cracks initiated in either the metal or ceramic layer depending on the loading direction.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Chemistry, Physical
S. Q. Jia, L. Bolzoni, T. Li, F. Yang
Summary: Cu-Cr/55 vol% diamond composites with different weight percentages of Cr additives were fabricated by hot forging, showing varied interface structures and thermal conductivities. The Cu-3Cr/55Dia composite exhibited the highest measured thermal conductivity, with a double-layered interface structure between the copper matrix and diamond particles. The modified models successfully predicted the thermal conductivity values, contributing to understanding heat transfer behavior in Cu-Cr/diamond composites.
Article
Materials Science, Ceramics
Zhirui Zhang, Haoyang Wu, Shutao Zhang, Yuelong Wang, Yiming Zhang, Chang Liu, Deyin Zhang, Baorui Jia, Dengshuai Guo, Aimin Chu, Xuanhui Qu, Mingli Qin
Summary: This study investigates the influence of oxygen impurities at different locations, such as lattice oxygen and grain edge oxygen, on the thermal resistivity of AlN ceramics. The results show that lattice oxygen is the main factor, and high-temperature annealing and pre-sintering can reduce the lattice oxygen content. The volume fraction of grain edge phase has little effect on thermal resistivity.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2023)
Article
Materials Science, Multidisciplinary
Yao Wang, Yukun Liu, Pingge He, Junteng Jin, Xudong Zhao, Qiuyu Shen, Jie Li, Xuanhui Qu, Yongchang Liu, Lifang Jiao
Summary: Researchers successfully enhanced the structural stability and battery performance of sodium-ion battery cathode materials by selectively substituting the chromium element. The newly developed material, Na3.9MnCr0.9Zr0.1(PO4)(3)/C, exhibited a high capacity retention of 85.94% over 500 cycles at high charge rates, and an ultra-high capacity of 156.4 mAh/g at low charge rates, enabling stable energy output as high as 555.2 Wh/kg. This study provides new opportunities for designing high-energy and high-stability NASICON cathodes through ion doping.
ENERGY & ENVIRONMENTAL MATERIALS
(2023)
Article
Chemistry, Physical
Qiuyu Shen, Yongchang Liu, Xudong Zhao, Junteng Jin, Xiaobai Song, Yao Wang, Xuanhui Qu, Lifang Jiao
Summary: Initiating anionic redox chemistry in layered sodium oxide cathodes is a prevalent method to break the capacity limit set by traditional transition metal redox. This study uncovers a Mn activation mechanism in a novel P2-Na0.80Li0.08Ni0.22Mn0.67O2 cathode, which achieves high discharge capacity and long cycling life by triggering anionic redox and reducing Mn through oxygen loss. The work elucidates the charge compensation mechanism and expands the horizons of oxygen redox chemistry for high-performance layered oxide cathode materials in sodium-ion batteries.
ADVANCED ENERGY MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Xiayan Jian, Qiuyu Shen, Xudong Zhao, Junteng Jin, Yao Wang, Shengwei Li, Xuanhui Qu, Lifang Jiao, Yongchang Liu
Summary: This study reports a new type of ultrathin VOPO4 nanosheets as cathodes for sodium-ion batteries, achieving higher capacity and rate performance through redox reactions and ClO4- insertion/extraction. The mechanism of anionic redox reactions is elucidated, opening up a new avenue for high-energy phosphate cathodes for SIBs.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Physical
Jiawei Cai, Baicheng Zhang, Xuanhui Qu
Summary: The metal binder jetting technology has great potential for low-cost batch manufacturing. However, the use of phenolic-based binders restricts its application due to their hazardous nature and high residual content. In this study, an environmentally friendly PVA-based binder with high water content was developed to enable good bonding between powder layers. A fully dense SS316L part with low carbon and oxygen residuals was obtained, exhibiting isotropic tensile properties with high elongation.
APPLIED SURFACE SCIENCE
(2023)
Article
Materials Science, Ceramics
Chang Liu, Mingli Qin, Haoyang Wu, Zhirui Zhang, Yiming Zhang, Yuelong Wang, Baorui Jia, Dengshuai Guo, Xuanhui Qu
Summary: In this paper, an estimation method was presented to reveal the relationship between residual oxygen content and Y2O3 additive amount used in AlN sintering. It was found that the AlN sample added with 3 wt% Y2O3 showed better performance than the others when the oxygen content was 0.765 wt% in the initial powders. However, short-time sintering did not result in ultra-high performance as estimated. By employing two-step sintering regimes, the distribution of the second phase in the AlN ceramic was significantly changed, leading to improved bending strength and decreased residual oxygen content.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Multidisciplinary
Zunyue Yu, Jianguo Huang, Chenglong Xiao, Wenru Zhao, Beibei Zhang, Shubin Ren, Xuanhui Qu
Summary: In this paper, a simple material preparation method is proposed to meet the requirements of efficient heat exchange interface materials for spacecraft on-orbit modular assembly. Carbon nanotubes (CNTs) were dispersed on the surface of spherical copper (Cu) powder, and then the bulk was obtained by hot-pressing sintering. By removing the Cu on the surface, the CNTs can protrude from the surface to fill the pores at the interface, increasing the heat transfer channel and reducing the thermal contact resistance (TCR).
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Materials Science, Composites
Zijian Zhang, Xinbo He, Tao Zhang, Pengfei Liu, Hongda Guan, Xulei Wang, Xuanhui Qu
Summary: Through a novel preparation process, diamond particles of 50 μm are successfully filled into gaps between closely arranged diamond particles of 400 μm, resulting in diamond/SiC composites with high diamond content and uniform structure. The diamond volume fraction and thermal conductivity of the composite are 79.18% and 722.55 W/mK, respectively, which are the maximum values achieved by pressureless infiltration. This innovative method offers a new solution for uniform mixing of particles of different sizes in composites.
COMPOSITES COMMUNICATIONS
(2023)
Article
Materials Science, Ceramics
Yadong Liu, Saipeng Cao, Haoyang Wu, Lin Zhang, Baorui Jia, Mingli Qin, Xuanhui Qu
Summary: Hollow spherical WO3 powder was successfully synthesized via spray solution combustion synthesis (SSCS) method using a mixed solution of ammonium metatungstate, glycine and ammonium nitrate. The effects of fuel ratio, temperature, and precursor solution concentration on the structure and morphology of the powder were investigated, as well as the SSCS mechanism. The optimized conditions resulted in the formation of smooth-surfaced spherical WO3 powder with a median diameter of 24.02 μm, consisting of nanoparticles with a diameter of about 30 nm and a specific surface area of 13.5 m2/g. The as-synthesized WO3 powder exhibited excellent catalytic performance in degrading RhB solution under visible light, with 70.1% degradation achieved within 2 hours using only 10 mg of powder.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Multidisciplinary
Jin'e Sun, Yaojie Wen, Zhong Wang, Jingguo Zhang, Linshan Wang, Xuanhui Qu, Baicheng Zhang
Summary: In this study, a TiC nanoparticle modified Al-Mg-Li alloy is developed for laser powder bed fusion (LPBF) process. The presence of TiC nanoparticles effectively increases the viscosity of the alloy liquid, preventing Li element ablation and promoting grain refinement. The addition of TiC nanoparticles leads to an outstanding mechanical property with high ultimate tensile strength and elongation.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Nanoscience & Nanotechnology
Chang Liu, Jianan Chen, Yifan Wang, Wangwang Ding, Qiying Tao, Gang Chen, Wei Cai, Mingli Qin, Xuanhui Qu
Summary: A nanoscale Ti-1Fe dual-phase alloy was fabricated using laser powder bed fusion, and its microstructure, phase constituent, and tensile properties were investigated. The interfacial coherency between different phases and the presence of dislocations at grain boundaries were found to effectively facilitate the formation of deformation twins, leading to excellent tensile strength and ductility. This study suggests a promising approach to designing high-performance and cost-effective titanium materials without the need for expensive alloying elements.
SCRIPTA MATERIALIA
(2023)
Article
Chemistry, Physical
Yixing Fang, Kun Han, Zhen Wang, Jie Shi, Ping Li, Xuanhui Qu
Summary: Designing a three-dimensional host material as the substrate can enhance the reversible plating/stripping behavior of the zinc anode in aqueous zinc-ion batteries. In this study, a Cu nanowire-decorated Cu foam host was fabricated to enhance the reversibility of electroplating/electrostripping. The Cu NW@Cu foam showed a dendrite-free plating/stripping process with a small nucleation overpotential and an ultra-stable lifespan in zinc symmetrical batteries. Additionally, when used as the anode in a full-cell, the Zn@Cu NW@Cu foam delivered a stable discharge specific capacity over 3000 cycles. This study provides a reliable strategy for designing high-performance zinc host materials.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Materials Science, Multidisciplinary
Yu Pan, Yucheng Yang, Qingjun Zhou, Xuanhui Qu, Peng Cao, Xin Lu
Summary: By adding a minor CaC2 oxygen-scavenger, the excessive interstitial oxygen contamination in titanium and its alloys can be effectively solved, resulting in high strength and superior ductility. This novel method offers a cost-effective way to develop high-performance titanium materials.
Article
Materials Science, Multidisciplinary
Shuyi Xie, Bin Xu, Cong Zhang, Dil Faraz Khan, Xue Jiang, Ruijie Zhang, Yongwei Wang, Haiqing Yin, Xuanhui Qu
Summary: This study investigates the effects of doping 7 refractory elements (V, Cr, Zr, Nb, Mo, Hf, and Ta) on the site preference, elastic properties, and bonding effect of Ni2TiAl. The results show that V and Cr can effectively improve the bonding stability and strength of Ni2TiAl.
COMPUTATIONAL MATERIALS SCIENCE
(2024)
Article
Materials Science, Multidisciplinary
Chang Liu, Jianxiong Liang, Changjun Wang, Gang Chen, Xuanhui Qu, Yu Liu, Zhenbao Liu, Mengxing Zhang
Summary: In this study, PH13-8Mo stainless steel parts doped with cerium were fabricated and compared with undoped parts. The doping of cerium improved the microstructure, phase constituents, and tensile properties of the stainless steel. The results showed that doping with cerium enhanced the mechanical stability of austenite, improved the sphericity of oxide inclusion, and increased the ultimate tensile strength and fracture elongation of the PH13-8Mo parts. The improved strength and ductility were attributed to the strengthening effects of nanoscale precipitation and grain refining, as well as the enhanced inclusion sphericity and coherency between the inclusion and matrix.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2024)
