Article
Chemistry, Physical
Tomila M. Vidyuk, Dina Dudina, Michail A. Korchagin, Alexander Gavrilov, Arina Ukhina, Uliana E. Bulanova, Mikhail A. Legan, Aleksey N. Novoselov, Maksim A. Esikov, Alexander G. Anisimov
Summary: This article presents the features of in-situ synthesis, microstructure evolution, and mechanical properties of TiC-Cu composites obtained by mechanical milling and spark plasma sintering (SPS). Different carbon sources were compared for their influence on the composite mixtures, with the conclusion that carbon black and nanodiamonds facilitate faster conversion of reactants compared to graphite. The TiC-Cu composite obtained showed a relative density of 95%, impressive strength and hardness properties, and an unconventional microstructure.
SURFACES AND INTERFACES
(2021)
Review
Automation & Control Systems
Ujah Chika Oliver, Aigbodion Victor Sunday, Ezema Ike-Eze Ikechukwu Christain, Makhatha Mamookho Elizabeth
Summary: The paper discusses the drawbacks of monolithic aluminium alloy in industrial applications and the necessity to switch to aluminium matrix composites, as well as introduces the spark plasma sintering technology and its advantages.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2021)
Article
Chemistry, Physical
Shuan Ma, Shiqi Zhou, Wei Zhang, Shaolan Wang, Mabao Liu
Summary: This study presents a facile strategy for preparing graphene nanosheets-Inconel718 (IN718-GNSs) composites and investigates their mechanical properties. The strengthening mechanism of the composites is mainly attributed to dislocation strengthening, grain refinement, and load transfer.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Jing Qiao, Linwei Xu, Yujia Wang, Gaohui Wu
Summary: A novel non-lead, lightweight nuclear shielding material was developed by introducing W and B particles into 6061 Al alloy. The (W+B)/Al hybrid composites exhibited homogeneous microstructure, excellent mechanical properties, and improved radiation shielding performance.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Ceramics
Dina Dudina, Tomila M. Vidyuk, Alexander Gavrilov, Arina Ukhina, Boris B. Bokhonov, Mikhail A. Legan, Alexander A. Matvienko, Michail A. Korchagin
Summary: The study focused on separating the effects of reaction and spark plasma sintering (SPS) during the in-situ synthesis of TiC in mechanically milled Ti-C-3Cu powder mixtures, with particular attention to the impact of copper on the microstructure.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Ceramics
Damiano Angioni, Roberto Orru, Giacomo Cao, Sebastiano Garroni, Devis Bellucci, Valeria Cannillo
Summary: In this study, hydroxyapatite and a lab-made bioactive glass were mixed in certain proportion and subjected to ball milling treatment. The effect of ball milling time on the characteristics of the resulting products was investigated. The results showed that using a 30-minute ball milling mixture significantly improved the apatite-forming ability and resulted in higher Young's Modulus and Vickers Hardness. The microstructural changes induced by ball milling and the formation of intimate HA/BGMS10 interfaces were the main factors responsible for these improvements.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2023)
Article
Materials Science, Multidisciplinary
Aicha S. Lemine, Osama Fayyaz, Moinuddin Yusuf, R. A. Shakoor, Zubair Ahmad, Jolly Bhadra, Noora J. Al-Thani
Summary: This study focuses on enhancing the mechanical properties of aluminum by adding ceramic particles and synthesizing Al-NbC-B4C hybrid composites. The composites showed improved hardness, strength, and resistance to localized plastic deformations. The results demonstrated the effectiveness of the reinforcement strategy in enhancing the mechanical properties of aluminum.
MATERIALS TODAY COMMUNICATIONS
(2022)
Article
Chemistry, Physical
Shakti Corthay, Magzhan K. Kutzhanov, Andrei T. Matveev, Andrey Bondarev, Denis Leybo, Dmitry Shtansky
Summary: Al/h-BN composites with high strength and ductility were successfully obtained through ball milling and spark plasma sintering. The composites showed improved tensile and compressive properties at room and elevated temperatures. The combination of Al and h-BN nanoparticles resulted in enhanced strength and elongation to fracture, making the materials superior to other Al-based composites.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Ceramics
Johnson Frank Guria, Ankit Bansal, Vimal Kumar, B. Venkata Manoj Kumar
Summary: In this study, the effect of simultaneous incorporation of SiC and WC additives on the densification behavior and microstructural development of TiC-based composites was investigated. The results showed that the addition of SiC and WC improved the relative density of the composites and promoted the in-situ formation of Ti3SiC2 compound. In addition, some of the SiC and WC particles were partially dissolved in the (Ti, W) C solid solution, further enhancing the fracture toughness of the composites.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Inorganic & Nuclear
Siddika Mertdinc, Mert Kilik, Sennur Baltas, Alper Kaan Taskin, M. Lutfi Ovecoglu, Duygu Agaogullari
Summary: Chromium boride/nitride powders were mechanochemically synthesized through two different routes, which were then incorporated into an Al - 4 wt% Cu matrix alloy to produce composites. The composites produced from the first synthesis route exhibited better mechanical properties, with a microhardness of about 2 GPa and a compression strength of about 323 MPa.
SOLID STATE SCIENCES
(2021)
Article
Materials Science, Ceramics
Rafael A. Raimundo, Kaio V. A. Santos, Cleber S. Lourenco, Francine A. Costa, Marco A. Morales, Daniel A. Macedo, Angelus G. P. Silva, Uilame U. Gomes
Summary: Al2O3-10 wt% Co composites were successfully prepared by high energy milling and subsequent SPS sintering. Increasing milling time led to a decrease in the average size of composite particles, with an inverse relationship between crystallite size and micro-strain. The samples exhibited homogeneous microstructures, high density, and microhardness in a specific range.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Physical
Jiajia Zhang, Xuexi Zhang, Mingfang Qian, Aibin Li, Lin Geng
Summary: Homogeneous dispersion of high-content GNS in graphene reinforced aluminum matrix composites is challenging but crucial for achieving high mechanical properties. This study introduces SiC nanoparticles through a two-step ball milling process, which not only improves the dispersion of GNS but also strengthens the composites. The obtained Al flakes effectively enhance the dispersion efficiency of GNS and reduce structural damage. As a result, the extruded (GNS+SiCnp)/Al composites show significant improvement in mechanical properties due to the homogeneous dispersion of GNS, SiCnp, and the hybrid enhancement effect between them.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Multidisciplinary
Jing-kun Li, Bin-guo Fu, Tian-shun Dong, Guo-lu Li, Yong-yue Liu, Jia-geng Liu, Chun-yang Wang, Wei Cui
Summary: A new nano-scale rhombic precipitate was discovered in SiC with 8 wt% Mg additive. TEM was used to characterize the distribution, shape, size, and microstructure of the precipitates, as well as to determine its formation mechanism. The rhombic precipitates were found to be under 65 nm in size and extensively distributed with high density. They contained a significant amount of Fe from the collision between the stainless steel pot and the milling balls, as well as Fe3Si generated during sintering. The Fe3Si precipitates and SiC matrix exhibited specific crystal orientations.
MATERIALS CHARACTERIZATION
(2023)
Article
Nanoscience & Nanotechnology
Shakti Corthay, Konstantin L. Firestein, Dmitry G. Kvashnin, Magzhan K. Kutzhanov, Andrei T. Matveev, Andrey M. Kovalskii, Denis V. Leybo, Dmitri V. Golberg, Dmitry V. Shtansky
Summary: High-strength Al2014 and Al7075 series composites with h-BN additives were fabricated using HEBM and SPS, showing different phase compositions compared to standard alloys. The h-BN nanosheets provided solid lubrication, prevented agglomeration, and led to improved mechanical properties in the resultant composites, with an increase in hardness and tensile strength observed in samples with 3 wt% BN doping. Elevation in strength was attributed to the high thermal stability of reinforcing phases, solid solution hardening, and Orowan strengthening mechanisms.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Materials Science, Ceramics
Subhadip Bhandari, Tarini Prasad Mishra, Martin Bram, Olivier Guillon, Devinder Yadav
Summary: Flash sintering of 8YSZ/NiO composites was studied, and it was found that the sintering atmosphere and NiO content strongly influenced the flash onset temperature and power dissipation. The current density could control the densification of the composites.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Physical
Xinyi Liu, Zhe Chen, Hao Wang, Yipeng Li, Zhuoming Xie, Xiang Liu, Guang Ran
Summary: In situ irradiations were conducted on W-0.5 wt% ZrC at different temperatures, revealing that the density and size of dislocation loops around ZrC particles are related to the particle size. However, different characteristics of dislocation loops were observed for ZrC particles with different sizes. Molecular dynamics simulation revealed the interaction between (100) dislocation line and (100) dislocation loop, indicating the generation of glissile 1/2(111) dislocation segments for the interaction.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Engineering, Environmental
Sihan Ma, Xian Luo, Guang Ran, Yipeng Li, Ziqi Cao, Xinyi Liu, Guoqiang Chen, Jianghua Yan, Lin Wang
Summary: In this study, 2D defect nanosheets BiOI/Bi with Bi decoration and defect engineering (BiOI-DE) were constructed for photonic sterilization. The results showed that this material exhibited higher antibacterial activity and sterilization efficiency. The causes of the photothermal effect were discussed, and it was found that structural optimization could enhance photocatalytic activity and improve antibacterial performance.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Materials Science, Multidisciplinary
Yipeng Li, Guang Ran, Xinyi Liu, Qing Han, Xiuyin Huang, Yifan Ding
Summary: The reaction and transformation of dislocation loops in pure Mo under H-2(+)-He+ dual-beam irradiation at 723K were investigated using in-situ TEM observation. The formation of 1/2 <111> loops and <100> loops can be directly induced by irradiation, with 1/2 <111> loops being dominant. The formation mechanisms of <100> loops, including direct irradiation induced mechanism, 1/2 <111> loop direct conversion mechanism, and reaction mechanism of two 1/2 <111> loops, were confirmed through in-situ observation.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Zhaodandan Ma, Guang Ran, Xi Qiu, Yipeng Li, Yifan Ding, Ruiqian Zhang, Jinchi Huang, Yaoli Zhang, Xiuyin Huang
Summary: The evolution of dislocation loops in AFA stainless steel under different irradiation conditions was studied, revealing that pre-existing dislocation lines have a significant impact on the formation and hardening of dislocation loops. Increasing pre-existing dislocation density can enhance irradiation resistance, but it needs to be comprehensively considered with the mechanical properties of the material.
JOURNAL OF NUCLEAR MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Zhengxiong Su, Tan Shi, Jinxue Yang, Huahai Shen, Zhiming Li, Sheng Wang, Guang Ran, Chenyang Lu
Summary: A design strategy based on a typical multi-principal element alloy was proposed to tune the irradiation behavior by adding interstitial carbon atoms. The results showed that the interstitial carbon atoms inhibited the growth of He bubbles and irradiation hardening, and reduced the segregation at dislocation loops. The experiments also revealed radiation-induced elemental oscillation patterns in high-entropy alloys.
Article
Materials Science, Ceramics
Ziqi Cao, Kun He, Guang Ran, Xi Qiu, Dan Sun, Yipeng Li, Yong Xin
Summary: This study investigates the influence of thermal effect on the microstructure of irradiated CeO2. Experimental results show that dislocation loops in irradiated CeO2 shrink or disappear as the annealing time increases. The shrinkage is more significant for smaller dislocation loops. In addition, when the loop size exceeds a certain threshold, the loop grows rapidly at the beginning of annealing and then remains stable.
CERAMICS INTERNATIONAL
(2022)
Article
Thermodynamics
Jyoti Devi, Veena Sharma, Anukampa Thakur, Gian C. Rana
Summary: This study investigates the initiation of oscillatory convection in a rheological nanofluid under an alternating current electric field. The effects of electrophoresis, Brownian motion, and thermophoresis on the conservation of momentum equations are integrated into the model. The simplified equations reveal that both stationary and oscillatory convection can be initiated under certain conditions, and the thermal Rayleigh number plays a crucial role in system stability.
Article
Materials Science, Multidisciplinary
Jinchi Huang, Ziqi Cao, Zhe Chen, Yipeng Li, Yifan Ding, Xinyi Liu, Zhehui Zhou, Changsong Liu, Guang Ran
Summary: The evolution of dislocation loops and helium bubbles in W-0.5ZrC alloy with different pre-existing dislocation densities during He+ irradiation at 800 degrees C was investigated using in-situ transmission electron microscopy. The nucleation, migration, aggregation, and growth of dislocation loops and helium bubbles were observed throughout the irradiation process. The study revealed that the growth of dislocation loops was inhibited in regions with low pre-existing dislocation density, while the nucleation of dislocation loops was inhibited in regions with dispersed medium density, and both the nucleation and growth of dislocation loops were inhibited in regions with compact medium density.
JOURNAL OF NUCLEAR MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Yifan Ding, Guang Ran, Yipeng Li, Ziqi Cao, Dewang Cui, Jinchi Huang, Zhehui Zhou
Summary: In this study, the dose rate effects of ion irradiation were investigated using in-situ 30 keV He+ irradiation in tungsten in TEM. It was found that defect generation rate and elastic interaction are two key factors controlling the evolution of dislocation loops. By adjusting the defect generation rate, the elastic interaction between the loops can play different roles, leading to variations in loop density, size, and spatial distribution.
SCRIPTA MATERIALIA
(2023)
Article
Chemistry, Physical
Sihan Ma, Yipeng Li, Xian Luo, Shangquan Zhao, Ziqi Cao, Yifan Ding, Dewang Cui, Naigen Zhou, Lin Wang, Guang Ran
Summary: In this study, BiOI nanosheets with dislocation-rich defects were constructed by high-energy nitrogen ion implantation engineering, which enhanced conductivity and photocatalytic activity. Moreover, controlling the ion irradiation fluence induced dislocation density dramatically enhanced the photothermal activity. The irradiated BiOI nanosheets under near infrared illumination demonstrated remarkable antibacterial properties.
MATERIALS TODAY ENERGY
(2023)
Article
Mathematics, Applied
Jyoti Devi, Veena Sharma, Gian C. C. Rana
Summary: This paper investigates the onset of oscillatory convection in a rheological nanofluid with the presence of a vertical AC electric field in an anisotropic porous layer. The study incorporates the effects of Brownian motion and thermophoresis using the Buongiorno model. By analyzing the linear differential equations, the conditions for the initiation of non-oscillatory and oscillatory modes are determined. Numerical values of thermal Rayleigh number are graphically shown to assess the impact of various parameters on the stability of the system, where the thermal Prandtl number, stress relaxation parameter, and electric Rayleigh number promote stationary and oscillatory convection while the Brinkman-Darcy number delays it.
RICERCHE DI MATEMATICA
(2023)
Article
Nanoscience & Nanotechnology
Jintao Yuan, Shangtong Zhou, Bohan Xiao, Lingjie Bao, Zikang Ai, Yuheng Shen, Guang Ran, Qijin Cheng
Summary: In this study, an innovative NaCl-assisted chemical vapor deposition (CVD) method was proposed to synthesize large-area monolayer WS2 nanosheets by adjusting the substrate positions. The HfO2 passivation layer was found to significantly improve the performance of the WS2-based photodetectors, achieving a high responsivity of 1093.1 AW-1, a high specific detectivity of 2.6 x 1012 Jones, and a high external quantum efficiency of 2.1 x 105%. The physical mechanism of the photodetectors with the HfO2 passivation layer was also discussed. This research result can accelerate the development of optoelectronic devices based on TMDCs.
ACS APPLIED NANO MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Jingxin Wu, Meng Zhang, Zhanqiang Li, Minzhong Huang, Huiming Xiang, Liyan Xue, Zhengming Jiang, Zhigang Zhao, Lianfeng Wei, Yong Zheng, Fan Yang, Guang Ran, Yanchun Zhou, Heng Chen
Summary: A novel high-entropy ceramic (HE-RE2Hf2O7) was prepared for control rod and demonstrated excellent irradiation resistance and extreme environmental tolerance. It provides a new strategy for the design of advanced nuclear engineering materials.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2023)
Article
Thermodynamics
Pushap Lata Sharma, Deepak Bains, Gian C. Rana
Summary: The research investigates the impact of variable gravity on thermal instability in a layer of Jeffrey nanofluid confined in a Darcy-Brinkman porous medium. The results are presented graphically, showing the effects of different variable gravity parameters on properties such as the Jeffrey parameter and Darcy-Brinkman number.
NUMERICAL HEAT TRANSFER PART B-FUNDAMENTALS
(2023)
Article
Multidisciplinary Sciences
Veena Sharma, Jyoti Devi, Gian C. C. Rana
Summary: The study focuses on the influence of rheology on the initiation of thermal convection in a rotating nanofluid layer heated beneath with an alternating current electric field. Linear stability analysis is employed using stress-free bounding surfaces. The rheological behavior of the regular fluid is described by the Oldroyd model, while the Buongiorno model is used for nanofluids with considerations for thermophoresis and Brownian motion. Exact solutions of the eigen-value problem are obtained using the single term Galerkin technique, and the expressions of the thermal Rayleigh number for both stationary and oscillatory convection are presented graphically for different nanoparticle configurations.
JOURNAL OF TAIBAH UNIVERSITY FOR SCIENCE
(2023)
