Article
Engineering, Manufacturing
Haoming Pang, Yinduan Gao, Shouhu Xuan, Xinglong Gong
Summary: The study systematically investigated the mechanical properties of Magnetorheological plastomers (MRPs) with different types of secondary particles through experiments and simulations. It was found that the addition of glass balls led to an increase in mechanical properties, while SiO2 and Fe3O4 particles exhibited conflicting behaviors. Simulation of microstructures in MRPs revealed the effect of secondary particles on the microstructure and mechanical properties of MRPs.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2022)
Article
Engineering, Manufacturing
Ethan Watt, Mohamed A. Abdelwahab, Amar K. Mohanty, Manjusri Misra
Summary: Utilizing corn cob BioC as filler can enhance the environmental impact of polyamide 4,10 while increasing its biocontent. Pyrolyzing the filler at 350°C can create strong interfacial adhesion with PA 4,10, leading to improved performance of the composites.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2021)
Article
Construction & Building Technology
Kaiqiang Liu, Zhaijun Wen, Youzhi Zheng, Yigang Xu, Junjie Yu, Jiayuan Ye, Wensheng Zhang, Wen Zhong, Xianshu Gao, Huan Liu
Summary: This study investigated the temperature adaptability of cellulose fiber in cement-based composites by testing its thermal stability, chemical structure, and microstructure at different temperatures. The results demonstrated that cellulose fiber could enhance the compressive strength of cement paste, but had no effect at higher temperatures. Additionally, the cement paste filtrate had a significant influence on the chemical structure and microstructure of cellulose fiber at high temperatures.
JOURNAL OF BUILDING ENGINEERING
(2023)
Article
Biochemistry & Molecular Biology
Kang Zhang, Mi Zhou, Fei Cheng, Yi Lin, Puxin Zhu, Jiali Li, Kewen Tang
Summary: This study successfully improved the dispersion of cellulose nanocrystals in starch matrix and enhanced the performance of starch-based nanocomposite films by modifying the nanocrystals with a silane coupling agent and self-assembling graphene oxide on their surface. The films with 5 wt% CNC-GO exhibited the highest tensile strength, elongation at break, and transmittance, while the films with 3 wt% CNC-GO had the lowest moisture rate.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2022)
Article
Polymer Science
Adnan Amjad, M. Shukur Zainol Abidin, Hassan Alshahrani, Aslina Anjang Ab Rahman
Summary: Natural fibre reinforced polymer composites are increasingly popular in automotive applications, with the addition of Al2O3 and MgO nanofillers showing significant improvements in mechanical properties. Surface treatment of fibres and nanofiller addition play crucial roles in enhancing the overall performance of the composites, demonstrating superior tensile, flexural, and impact properties in the hybrid nanocomposites. The SEM images reveal various defects that impact the mechanical behavior of the composites, highlighting the importance of optimizing the composition for enhanced performance.
Article
Construction & Building Technology
Chandra Sekhar Karadumpa, Rathish Kumar Pancharathi
Summary: In this study, the replacement levels of fly ash and GBFS are optimized to 20% and 30%, respectively, with a 50% OPC content. The adoption of the modified Taufer model (MTM) and J.D. Dewar (JDD) model for proportioning fine aggregates resulted in improved packing density for better mixes compared to Indian standard recommendations. The MTM method showed superior compressive strength and better packing in the microstructure studies when compared to other methods of proportioning the mixes.
JOURNAL OF MATERIALS IN CIVIL ENGINEERING
(2021)
Article
Materials Science, Multidisciplinary
Hao Wu, Yong Zheng, Zishen Han, Xiangyu Xu, Xuepeng Lu, Wei Zhou
Summary: The study found that the addition of Mo2FeB2 powder influenced the microstructure and mechanical properties of cermet materials, with the formation of core/rim and matrix grains playing a crucial role in determining the performance of the cermets.
MATERIALS CHARACTERIZATION
(2021)
Review
Engineering, Multidisciplinary
Jorge Guillermo Diaz-Rodriguez, Alberto David Pertuz-Comas, Octavio Andres Gonzalez-Estrada
Summary: This work analyses the mechanical properties of continuous fibre-reinforced thermoplastic composites manufactured by FDM, summarizing properties such as tension, bending, shear, impact, and fatigue. The results show a wide variation in mechanical properties and a lack of reporting on certain aspects of damage mechanisms in composites.
COMPOSITES PART B-ENGINEERING
(2021)
Review
Chemistry, Physical
Avinash Lakshmikanthan, Santosh Angadi, Vinayak Malik, Kuldeep K. Saxena, Chandar Prakash, Saurav Dixit, Kahtan A. Mohammed
Summary: This review article provides a detailed overview of the mechanical and tribological properties of aluminum-based metal matrix composites (Al-based MMCs) studied by researchers worldwide, as well as information on their processing techniques and applications. It includes background information on composite materials, their constituents, and their classification, as well as the matrix materials and particulates used in Al-based MMCs. The article also discusses factors influencing the mechanical and wear properties of Al-based MMCs.
Article
Nanoscience & Nanotechnology
Hao Wu, Yong Zheng, Jiajie Zhang, Zheng Ke, Xiangyu Xu
Summary: In this study, a novel method was proposed to prepare dual-grained Mo2FeB2-based cermets, which exhibited superior hardness and fracture toughness due to unique interfacial structures. The cermets maintained a high transverse rupture strength while enhancing strength and toughness through coherent interfaces.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Metallurgy & Metallurgical Engineering
Lin Cao, Peng Zhang, Shuang-jian Li, Qi-wei Wang, Da-hai Zeng, Chuan-yong Yu, Qing-yang Li, Yu-wen Liao, Zhi-dan Lin, Wei Li
Summary: TaN/PEEK coatings prepared by electrophoretic deposition can effectively enhance the performance, wear resistance, and adhesive bonding strength of the coatings, providing effective protection for titanium alloys.
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
(2022)
Article
Materials Science, Ceramics
Dheeraj Kumar Gara, Gujjala Raghavendra, P. Syam Prasad, S. Ojha
Summary: The research found that reduced functional group density graphene has good adhesion and enhancement effects in composite materials, making it suitable for structural applications in aerospace industry.
CERAMICS INTERNATIONAL
(2021)
Article
Construction & Building Technology
Serhat Celikten
Summary: The production of geopolymer is considered cleaner than Portland cement due to lower CO2 emission. This study investigates the potential use of recycled steel fibre (RSF) from old tires recycling process in geopolymer mortars. The results show that RSFs can be successfully used for fibre-reinforced geopolymer production.
ADVANCES IN CONCRETE CONSTRUCTION
(2022)
Article
Engineering, Multidisciplinary
P-Y Mechin, V Keryvin, J-C Grandidier
Summary: The axial compressive strength of continuous fibres reinforced composite laminates can be significantly improved by increasing the nano-filler content. A single experimental tensile test on +/- 45 degrees coupons can be used to estimate the compressive strength, regardless of the nano-filler content.
COMPOSITES PART B-ENGINEERING
(2021)
Article
Materials Science, Multidisciplinary
Yanping Li, Jinglian Fan, Yong Han, Huichao Cheng, Lei Ye, Zhiyuan Du, Yuan Li
Summary: In this study, silicon carbide was used as a deoxidizer to react with oxygen atoms in tungsten to purify and strengthen grain boundaries. The addition of SiC improved the sintering densification, microstructure, and mechanical properties of tungsten effectively.
INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS
(2021)
Article
Construction & Building Technology
Kaiqiang Liu, Xiaowei Cheng, Chi Zhang, Xianshu Gao, Jia Zhuang, Xiaoyang Guo
CONSTRUCTION AND BUILDING MATERIALS
(2019)
Article
Engineering, Chemical
Kaiqiang Liu, Xiaowei Cheng, Xianshu Gao, Xingguo Zhang, Xiaoyang Guo, Jia Zhuang
Article
Engineering, Multidisciplinary
Kaiqiang Liu, Xiaowei Cheng, Jingxue Li, Xianshu Gao, Yan Cao, Xiaoyang Guo, Jia Zhuang, Chunmei Zhang
COMPOSITES PART B-ENGINEERING
(2019)
Article
Chemistry, Physical
Kaiqiang Liu, Xiaowei Cheng, Yong Ma, Xianshu Gao, Chunmei Zhang, Zaoyuan Li, Jia Zhuang
APPLIED SURFACE SCIENCE
(2020)
Article
Construction & Building Technology
Kaiqiang Liu, Xiaowei Cheng, Yong Ma, Xianshu Gao, Yongjin Yu, Chunmei Zhang, Xiaoyang Guo, Jia Zhuang
CEMENT & CONCRETE COMPOSITES
(2020)
Article
Construction & Building Technology
Xingguo Zhang, Jixiang Yang, Kun Li, Hong Pu, Xiongying Meng, Hong Zhang, Kaiqiaing Liu
CEMENT & CONCRETE COMPOSITES
(2020)
Article
Engineering, Chemical
Xingguo Zhang, Xiayu Zhang, Yonggang Li, Kaili Hu, Desen Mao, Liang Luo, Tong Du, Hong Zhang, Kaiqiang Liu
Summary: This study investigated the effects of metakaolin and graphite on the properties of cement paste at high temperatures. The results showed that high temperatures changed the structure of C-S-H in the cement paste, causing damage to the microstructure and reduced mechanical properties. Metakaolin and graphite improved the mechanical properties by filling effect and accommodating uneven variation of hydration products, respectively.
Article
Engineering, Chemical
Kaiqiang Liu, Yan Yang, Xueni Zhang, Kuanliang Zhu, Jinshan Wang, Lukuan Li, Qiang Tu, Ruirui Ma, Xiaowei Cheng, Xingguo Zhang
Summary: The experimental results in this paper demonstrate that the hydrostatic pressure descent curves of cement slurry consist of stabilization, slow descent, and rapid descent stages, mainly influenced by pore water and gel network. When the most probable pore diameter decreases to around 50 nm, the hydrostatic pressure of the cement slurry drops to zero.
Article
Construction & Building Technology
Kaiqiang Liu, Xuesong Yang, Hua Zhang, Shun Yao, Ziling Huang, Xueni Zhang, Quan Cao, Bin Li, Zeng Luo, Xiaowei Cheng, Zhaoliang Yang, Chongrong Chi
Summary: This study developed an in situ evaluation method for the pore connectivity of cement slurry, which can investigate its porosity, pore size, and pore connectivity. The experimental results showed that the porosity and pore size of the cement slurry changed during hydration, while the pore connectivity was reduced by the presence of SiO4 species.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Article
Energy & Fuels
Xingguo Zhang, Youzhi Zheng, Ziming Guo, Yong Ma, Yao Wang, Tao Gu, Tao Yang, Libin Jiao, Kaiqiang Liu, Zhongzhi Hu
Summary: This study developed a dynamic corrosion device for cement paste using CO2 as the corrosive medium, and studied the effects of static non-migration, dynamic non-migration, and dynamic migration of the corrosion solution on the corrosion process. The results showed that the aggregation and pore filling of corrosion products under different conditions influenced the corrosion rate of cement paste, with cracks on the surface accelerating the corrosion process.
JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING
(2021)
Article
Construction & Building Technology
Kaiqiang Liu, Junjie Yu, Yang Xia, Haiping Wang, Dekun Wang, Jiang Du, Yongding Tian, Xingguo Zhang
Summary: This study investigated the hydration kinetics and microstructure of oil-well cement slurry in the early hydration stage. It revealed the hydrostatic pressure reduction mechanism and the quantitative relationship between the hydration kinetics and hydrostatic pressure. The results showed that the hydrostatic pressure of the cement slurry changed according to the Arrhenius equation. The microstructure of the slurry developed from suspension particles to a particles framework bonded to external interfaces. The hydration products strengthened the framework and decreased the porosity, pore size, and connectivity of the slurry, leading to the loss of hydrostatic pressure. Hydration kinetics indicated that the hydrostatic pressure changed linearly with hydration heat increments. A prediction method using hydration heat increments was developed to successfully predict the hydrostatic pressure of oil-well cement slurry.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
Article
Materials Science, Ceramics
Kaiqiang Liu, Yong Ma, Zhuo Yuan, Yang Wu, Xiaobing Zhang, Xingguo Zhang
Summary: This study investigated the effects of various slags on the performance of CAC pastes and found that adding slag can reduce the hydration heat and temperature of CAC pastes, change their hydration products, and result in a dense microstructure, thereby improving compressive strength and elevated-temperature resistance.
CERAMICS INTERNATIONAL
(2022)
Article
Construction & Building Technology
Kaiqiang Liu, Zhaijun Wen, Youzhi Zheng, Yigang Xu, Junjie Yu, Jiayuan Ye, Wensheng Zhang, Wen Zhong, Xianshu Gao, Huan Liu
Summary: This study investigated the temperature adaptability of cellulose fiber in cement-based composites by testing its thermal stability, chemical structure, and microstructure at different temperatures. The results demonstrated that cellulose fiber could enhance the compressive strength of cement paste, but had no effect at higher temperatures. Additionally, the cement paste filtrate had a significant influence on the chemical structure and microstructure of cellulose fiber at high temperatures.
JOURNAL OF BUILDING ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Yanming Li, Kaiqiang Liu
Summary: This study investigates the effects of different conditions in heavy oil thermal recovery wells on the properties and microstructure of cement paste. The results show that elevated temperature leads to loosening of the microstructure, increased pore size and porosity, resulting in decreased compressive strength. However, under high-concentration CO2 conditions, the reaction between certain substances in the cement paste and CO2 repairs the paste by reducing porosity and pore size, increasing compressive strength.
Correction
Chemistry, Multidisciplinary
Yanming Li, Kaiqiang Liu
Article
Engineering, Chemical
Ri Zhang, Shasha Zhang, Mengyan Ding
Summary: A thin liquid film method is proposed to evaluate sand erosion in annular flow. This method considers the direct interaction between the liquid film and gas core, as well as the entrainment and deposition of droplets. The erosion rate is calculated by considering the effects of liquid entrainment and particle velocity decay. The method is fully verified by comparing with experimental data.
Article
Engineering, Chemical
Yu Suo, Xianheng Su, Wenyuan He, Xiaofei Fu, Zhejun Pan
Summary: This research investigates the mechanical properties of sandstone-shale composite through orthogonal experimental method and discrete element simulation. The results show that different lithologies and thickness ratios can affect the strength and fracture mode of the composite rock samples.
Article
Engineering, Chemical
Maurizio Troiano, Andrea El Hassanin, Roberto Solimene, Alessia Teresa Silvestri, Fabrizio Scala, Antonino Squillace, Piero Salatino
Summary: This study investigates the potential of Fluidized Bed Finishing (FBF) for square flat AlSi10Mg specimens manufactured via Laser-Powder Bed Fusion (L-PBF) additive manufacturing technology. The results show that good finishing can be achieved using rotation-assisted tests, with a maximum reduction of surface roughness by 67%. Steel particles are found to be the most effective bed material.
Review
Engineering, Chemical
Ningbo Song, Wanzhong Yin, Jin Yao
Summary: Seawater's dissolved salts and minerals have various effects on the flotation process, including influencing the characteristics and behavior of flotation factors, as well as affecting the surface of sulfide minerals. In most cases, seawater has adverse effects on the flotation of sulfide minerals, but these effects can be mitigated by adjusting the reagents.
Article
Engineering, Chemical
Kaiqiao Wu, Shuxian Jiang, Victor Francia, Marc-Olivier Coppens
Summary: In rectangular and cylindrical annular fluidized beds, pulsating gas flow can create regular bubble patterns, overcoming challenges seen in conventional units. This study provides new opportunities for modularization of fluidized bed operations.
Article
Engineering, Chemical
Shuo Li, Huili Zhang, Jan Baeyens, Miao Yang, Zehao Li, Yimin Deng
Summary: The paper assesses the behavior of cohesive Geldart C-type particles when fluidized by air with the aid of vibration. It determines that mechanical vibration is a simple and effective method to improve the fluidity of cohesive particles during fluidization.
Article
Engineering, Chemical
Zhenfei Feng, Qingyuan Zhang, Shanpan Liang, Zhenzhou Li, Fangwen Guo, Jinxin Zhang, Ding Yuan
Summary: A new micro/mini-channel heat sink (MCHS) with a combined structure of longitudinal and transverse vortex generators is designed, using Al2O3 nanofluid as the working medium. The study explores the effects of transverse vortex generator shape and longitudinal vortex generator angle on the hydraulic and thermal characteristics, comprehensive performance, entropy generation, and exergy efficiency. The results show that the triangular transverse vortex generator improves the comprehensive performance and exergy efficiency. Combined with the longitudinal vortex generator, the MCHS achieves the best comprehensive performance, entropy generation, and exergy efficiency when the Reynolds number is 742.
Article
Engineering, Chemical
Kostas Giannis, Christoph Thon, Guoqing Yang, Arno Kwade, Carsten Schilde
Summary: This study presents a 3D convolutional neural network (3D-CNN) methodology for generating realistic 3D models of particles. The method trains on 2D projections of particle images to predict their 3D shapes, and evaluates the accuracy of the predictions using Fourier shape descriptors (FSDs). This methodology has wide applications in particle shape analysis.
Article
Engineering, Chemical
Zheng-qing Zhou, Lu-jia Chai, Yu-long Zhang, Ya-bin Wang, Ze-chen Du, Tian-yi Wang, Yu-zhe Liu
Summary: The dynamic oxidation and shell-breaking processes of aluminum nanoparticles (ANPs) during heating were studied using in situ transmission electron microscopy. The results revealed that the changes in shell thickness can be divided into three stages, and the active aluminum content of ANP decreased before shell-breaking.
Article
Engineering, Chemical
Fulei Chen, Huaqing Ma, Zihan Liu, Lianyong Zhou, Yongzhi Zhao
Summary: A particle breakage model based on the particle replacement scheme, using the polyhedral model to describe particles, is proposed in this work to accurately describe the breakage of a large number of particles. Additionally, a fast-cutting algorithm is proposed to reproduce the size distribution of progeny particles determined by the breakage model. The validation and simulation results show satisfactory accuracy, efficiency, and stability of the algorithm.
Review
Engineering, Chemical
Matteo Errigo, Christopher Windows-Yule, Massimiliano Materazzi, Dominik Werner, Paola Lettieri
Summary: Gas-solid fluidized-bed systems have advantages in terms of chemical reaction efficiency and temperature control, making them widely used in industrial applications. However, the design, scale-up, and optimization of these complex units are limited by the lack of deep physical understanding. Non-invasive and non-intrusive diagnostic techniques provide a way for researchers to study these systems without affecting the flow field or directly contacting the medium under study.
Article
Engineering, Chemical
Saeed Fateh, Mohammad Behshad Shafii, Mohammad Najafi, Cyrus Aghanajafi
Summary: Applying a magnetic field to ferrofluids alters their flow characteristics and enhances heat transfer. Through visualization and quantitative investigation, it is found that the magnetic field influences the flow patterns and velocity profiles, improving fluid mixing and vorticity magnitude.
Article
Engineering, Chemical
Lei Gao, Bingbing Wei, Xiaochuan Hu, Zaifeng Yao, Yiwen Fang, Xuejian Gao
Summary: In this study, a numerical model of sand triaxial test was established using discrete element software PFC3D, and an indoor triaxial test was conducted to calibrate the numerical model. The influence of microscopic parameters on the macroscopic mechanical response of sand was analyzed. The results showed that the friction coefficient had the greatest impact on the peak strength and residual strength of the sand's stress-strain curve, and it was positively correlated. The normal tangential stiffness ratio was negatively correlated, while the porosity and boundary flexibility stiffness had minimal influence on it.
Article
Engineering, Chemical
Xuan Liu, Jie Gong, Kai Jiang, Xiaojuan Lai, Yu Tian, Kang Zhang
Summary: This study aimed to improve the performance of lignite coal water slurries (CWSs) by synthesizing a series of three-arm amphiphilic block copolymers. By controlling the relative molecular weight, hydrophilic/hydrophobic ratio, and ionic group content, the apparent viscosity of CWSs was significantly reduced and the static stability was improved. Thermogravimetric testing and XPS analysis were conducted to reveal the mechanism behind the improved performance.
Article
Engineering, Chemical
Lanka Dinushke Weerasiri, Daniel Fabijanic, Subrat Das
Summary: Fluidization at low pressure offers significant benefits for the fine chemical industry. This study investigates the behavior of bubbles and bed expansion under low pressure conditions. It is found that lower pressure leads to larger bubbles, increased bubble quantity, and higher aspect ratio. The predictability is affected by the inhomogeneous fluidization, but low pressure fluidization can generate similar bubble sizes with lower fluidizing mass compared to atmospheric pressure.